Entity Central Index Key
Cover [Abstract]
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Small Business
Entity Small Business
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Ex Transition Period
Entity Ex Transition Period
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Document Type
Document Type
Amendment Flag
Amendment Flag
Document Period End Date
Document Period End Date
Trading Symbol
Trading Symbol
Entity Current Reporting Status
Entity Current Reporting Status
Entity Interactive Data Current
Entity Interactive Data Current
Entity Shell Company
Entity Shell Company
Entity File Number
Entity File Number
Title of 12(b) Security
Security12b Title
Security Exchange Name
Security Exchange Name
Entity Tax Identification Number
Entity Tax Identification Number
Entity Address, Address Line One
Entity Address Address Line1
Entity Address, City or Town
Entity Address City Or Town
Entity Address, State or Province
Entity Address State Or Province
Entity Address, Postal Zip Code
Entity Address Postal Zip Code
City Area Code
City Area Code
Local Phone Number
Local Phone Number
Entity Incorporation, State or Country Code
Entity Incorporation State Country Code
Document Quarterly Report
Document Quarterly Report
Document Transition Report
Document Transition Report
Entity Common Stock Shares Outstanding
Entity Common Stock Shares Outstanding
Noncurrent bond posted used to reimburse reclamation costs and indemnity claims paid by the Company.
Statement Of Financial Position [Abstract]
Assets
Assets [Abstract]
Current Assets
Assets Current [Abstract]
Cash and cash equivalents
Cash And Cash Equivalents At Carrying Value
Prepaid expenses and other
Other Prepaid Expense Current
Total Current Assets
Assets Current
Non-Current Assets
Assets Noncurrent [Abstract]
Mineral properties (Note 7)
Mineral Properties Net
Reclamation bond (Note 8)
Reclamation Bond Noncurrent
Property and equipment
Property Plant And Equipment Net
Total Non-Current Assets
Assets Noncurrent
Total Assets
Assets
Liabilities and Stockholders' Equity
Liabilities And Stockholders Equity [Abstract]
Liabilities
Liabilities [Abstract]
Current Liabilities
Liabilities Current [Abstract]
Accounts payable and accrued liabilities
Accounts Payable And Accrued Liabilities Current
Reclamation and environmental obligation, current portion (Note 8)
Asset Retirement Obligation Current
Total Current Liabilities
Liabilities Current
Non-Current Liabilities
Liabilities Noncurrent [Abstract]
Convertible debt (Note 6)
Convertible Debt Noncurrent
Reclamation and environmental obligation, non-current portion (Note 8)
Mine Reclamation And Closing Liability Noncurrent
Total Liabilities
Liabilities
Stockholders' Equity
Stockholders Equity [Abstract]
Common stock, par value $0.01, 50,000,000 authorized shares, 27,616,745 issued and outstanding at December 31, 2019 and 26,519,954 issued and outstanding at June 30, 2019
Common Stock Value
Additional paid in capital
Additional Paid In Capital Common Stock
Deficit
Retained Earnings Accumulated Deficit
Total Stockholders' Equity
Stockholders Equity
Total Liabilities and Stockholders' Equity
Liabilities And Stockholders Equity
Common stock, par value
Common Stock Par Or Stated Value Per Share
Common stock, shares authorized
Common Stock Shares Authorized
Common stock, shares issued
Common Stock Shares Issued
Common stock, shares outstanding
Common Stock Shares Outstanding
Land holding costs.
Interest and service charges.
Statement of operations and comprehensive income (loss).
Statement Of Operations And Comprehensive Income Loss [Abstract]
Revenue
Revenues [Abstract]
Other income (Note 9)
Other Income
Total Revenue
Revenues
Expenses
Operating Expenses [Abstract]
Exploration
Exploration Expense
Land holding costs
Land Holding Costs
Professional fees
Professional Fees
Salaries and benefits
Labor And Related Expense
Directors compensation
Noninterest Expense Directors Fees
General and administrative
General And Administrative Expense
Insurance
General Insurance Expense
Depreciation
Depreciation
Accretion (Note 8)
Asset Retirement Obligation Accretion Expense
Total Expenses
Operating Expenses
Net Loss before Other Expense
Operating Income Loss
Other Expense (Income)
Nonoperating Gains Losses [Abstract]
Interest income
Investment Income Interest
Interest and service charges
Interest And Service Charges
Net Loss before Income Taxes
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
Net Loss and Comprehensive Loss
Net Income Loss
Loss per Common Share
Earnings Per Share [Abstract]
Basic
Earnings Per Share Basic
Diluted
Earnings Per Share Diluted
Weighted Average Number of Common Shares Used in Per Share Calculations
Weighted Average Number Of Shares Outstanding [Abstract]
Basic
Weighted Average Number Of Shares Outstanding Basic
Diluted
Weighted Average Number Of Diluted Shares Outstanding
Stock issued during period shares private placement.
Stock issued during period value private placement.
Statement Of Stockholders Equity [Abstract]
Statement [Table]
Statement [Table]
Equity Components
Statement Equity Components [Axis]
Equity Component
Equity Component [Domain]
Common Stock
Common Stock [Member]
Additional Paid-In Capital
Additional Paid In Capital [Member]
Deficit
Retained Earnings [Member]
Statement [Line Items]
Statement [Line Items]
Balance
Balance (in shares)
Stock based compensation
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
Capital issued for financing
Stock Issued During Period Value Private Placement
Capital issued for financing (in shares)
Stock Issued During Period Shares Private Placement
Capital issued for warrant exercise
Stock Issued During Period Value Conversion Of Convertible Securities
Capital issued for warrant exercise (in shares)
Stock Issued During Period Shares Conversion Of Convertible Securities
Capital issued for services
Stock Issued During Period Value Issued For Services
Capital issued for services (in shares)
Stock Issued During Period Shares Issued For Services
Net loss
Net Income Loss Available To Common Stockholders Basic
Balance
Balance (in shares)
Interest earned on reclamation bond.
Statement Of Cash Flows [Abstract]
Net Loss
Profit Loss
Adjustment for:
Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract]
Share based payments
Issuance Of Stock And Warrants For Services Or Claims
Stock based compensation
Allocated Share Based Compensation Expense
Amortization of debt issuance costs
Amortization Of Financing Costs And Discounts
Interest expense
Interest Expense
Accretion expense (Note 8)
Interest earned on reclamation bond
Interest Earned On Reclamation Bond
(Increase) decrease in accounts receivable
Increase Decrease In Accounts Receivable
(Increase) decrease in prepaid expenses
Increase Decrease In Prepaid Expense
Increase (decrease) in accounts payable
Increase Decrease In Accounts Payable
Cash used in operating activities
Net Cash Provided By Used In Operating Activities
Purchase of equipment
Payments To Acquire Machinery And Equipment
Cash used in investing activities
Net Cash Provided By Used In Investing Activities
Capital issued for financing (Note 5)
Proceeds From Issuance Of Common Stock
Convertible debt issued (Note 6)
Proceeds From Convertible Debt
Cash provided by financing activities
Net Cash Provided By Used In Financing Activities
Change in cash during period
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
Cash at beginning of period
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
Cash at end of period
Accounting Policies [Abstract]
Description of Business and Summary of Significant Accounting Policies
Business Description And Accounting Policies [Text Block]
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recent Accounting Guidance
New Accounting Pronouncements And Changes In Accounting Principles [Text Block]
Fair Value Disclosures [Abstract]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Nonmonetary Transactions [Abstract]
Non-Cash Transactions
Nonmonetary Transactions Disclosure [Text Block]
Equity [Abstract]
Capital Stock
Stockholders Equity Note Disclosure [Text Block]
Debt Disclosure [Abstract]
Convertible Debt
Debt Disclosure [Text Block]
Mineral Industries Disclosures [Abstract]
Mineral Properties
Mineral Industries Disclosures [Text Block]
Environmental Remediation Obligations [Abstract]
Reclamation and Environmental
Environmental Loss Contingency Disclosure [Text Block]
Other Income [Abstract]
Other Income
Other Operating Income And Expense [Text Block]
Segment Reporting [Abstract]
Segmented Information
Segment Reporting Disclosure [Text Block]
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies
Commitments And Contingencies Disclosure [Text Block]
Subsequent Events [Abstract]
Subsequent Events
Subsequent Events [Text Block]
Basis of Presentation and Preparation
Basis Of Accounting Policy Policy [Text Block]
Use of Estimates
Use Of Estimates
Cash and Cash Equivalents
Cash And Cash Equivalents Policy [Text Block]
Concentration of Credit Risk
Concentration Risk Credit Risk
Fair Value Measurements
Fair Value Measurement Policy Policy [Text Block]
Stock Based Compensation
Share Based Compensation Option And Incentive Plans Policy
Disclosure of accounting policy for mineral properties which may include the basis of such assets, depreciation methods used and estimated useful lives, the entity's capitalization policy, including its accounting treatment for costs incurred for repairs and maintenance activities, whether such asset balances include capitalized interest and the method by which such is calculated, how disposals of such assets are accounted for and how impairment of such assets is assessed and recognized.
Mineral Properties
Mineral Properties Policy [Text Block]
Disclosure of accounting policy for the aggregate of costs (whether the costs are capitalized or charged to expense at the time they are incurred ) incurred for the year in mineral property acquisition, exploration and development activities.
Exploration Costs
Exploration Costs Policy [Text Block]
Property and Equipment
Property Plant And Equipment Policy [Text Block]
Reclamation and Environmental Obligation
Asset Retirement Obligations And Environmental Cost Policy [Text Block]
Net Loss per Common Share
Earnings Per Share Policy [Text Block]
Recent Accounting Guidance
New Accounting Pronouncements Policy Policy [Text Block]
Fixed assets.
Fixed Assets
Fixed Assets Table [Text Block]
Fair Value of Financial Assets and Liabilities
Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Warrants
Warrant [Member]
Valuation Approach and Technique
Valuation Technique [Axis]
Valuation Approach and Technique
Valuation Technique [Domain]
Black-Scholes option model.
Black-Scholes option valuation model
Black Scholes Option Model [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Warrants Exercisable into Common Stock Activity
Schedule Of Stockholders Equity Note Warrants Or Rights [Text Block]
Schedule of Fair Value of Options Calculated Using Black-Scholes Option Valuations Method
Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block]
Summary of Option Activity Under Stock Incentive and Compensation Plan
Schedule Of Share Based Compensation Activity Table [Text Block]
Summary of Status of Non-Vested Options
Schedule Of Nonvested Share Activity Table [Text Block]
Summary of Convertible Debt
Convertible Debt Table [Text Block]
Tabular disclosure of mineral properties. Disclosure may include type of assets, disposal, depreciation and net amount.
Capitalized Acquisition Costs on Mineral Properties
Mineral Properties Table [Text Block]
Changes to Asset Retirement Obligations
Schedule Of Change In Asset Retirement Obligation Table [Text Block]
Other Income Details
Schedule Of Other Nonoperating Income By Component [Text Block]
Schedule of Expenses and Mineral Property Carrying Values by Material Project
Cost Incurred In Oil And Gas Property Acquisition Exploration And Development Activities Disclosure [Text Block]
Schedule of Aggregate Minimum Rentals Payable for Operating Leases
Schedule Of Future Minimum Rental Payments For Operating Leases Table [Text Block]
Cash uninsured amount description.
Concentration of credit risk uninsured cash amount.
Concentration of credit risk uninsured cash amount
Concentration Of Credit Risk Uninsured Cash Amount
Cash, Uninsured Amount, Description
Cash Uninsured Amount Description
Percentage of annual amortization rate on declining balance.
Schedule Of Property Plant And Equipment [Table]
Schedule Of Property Plant And Equipment [Table]
Property, Plant and Equipment, Type
Property Plant And Equipment By Type [Axis]
Property, Plant and Equipment, Type
Property Plant And Equipment Type [Domain]
Computer equipment
Computer Equipment [Member]
Equipment
Equipment [Member]
Property Plant And Equipment [Line Items]
Property Plant And Equipment [Line Items]
Percentage of annual amortization rate on declining balance (in hundredths)
Percentage Of Annual Amortization Rate On Declining Balance
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Measurement Frequency
Fair Value By Measurement Frequency [Axis]
Measurement Frequency
Fair Value Measurement Frequency [Domain]
Fair Value, Measurements, Recurring
Fair Value Measurements Recurring [Member]
Fair Value Hierarchy and NAV
Fair Value By Fair Value Hierarchy Level [Axis]
Fair Value Hierarchy and NAV
Fair Value Measurements Fair Value Hierarchy [Domain]
Level 1
Fair Value Inputs Level1 [Member]
Level 2
Fair Value Inputs Level2 [Member]
Level 3
Fair Value Inputs Level3 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents
Cash And Cash Equivalents Fair Value Disclosure
Convertible debt
Convertible Debt Fair Value Disclosures
Nonmonetary Transaction By Type [Table]
Nonmonetary Transaction By Type [Table]
Counterparty Name
Counterparty Name [Axis]
Counterparty Name
Repurchase Agreement Counterparty Name [Domain]
Ausenco.
Ausenco
Ausenco [Member]
Nonmonetary Transaction [Line Items]
Nonmonetary Transaction [Line Items]
Number of shares issued in exchange for services
Amount of shares issued in exchange for services
Amount of non-cash activities
Nonmonetary Transaction Amount Of Barter Transaction
Measurement Input Type
Measurement Input Type [Axis]
Measurement Input Type
Measurement Input Type [Domain]
Measurement Input Expected Term
Measurement Input Expected Term [Member]
Class of Warrant or Right
Class Of Warrant Or Right [Axis]
Class of Warrant or Right
Class Of Warrant Or Right [Domain]
Exercisable in first year.
Exercisable in First Year
Exercisable In First Year [Member]
Exercisable in second year.
Exercisable in Second Year
Exercisable In Second Year [Member]
Plan Name
Plan Name [Axis]
Plan Name
Plan Name [Domain]
Two thousand fifteen and two thousand sixteen stock incentive and stock compensation plan.
2015 and 2016 Stock Incentive and Compensation Plans
Two Thousand Fifteen And Two Thousand Sixteen Stock Incentive And Stock Compensation Plan [Member]
Statistical Measurement
Range [Axis]
Statistical Measurement
Range [Member]
Maximum
Maximum [Member]
Minimum [Member]
Minimum [Member]
Title of Individual
Title Of Individual [Axis]
Title of Individual
Title Of Individual With Relationship To Entity [Domain]
Employees directors and consultants.
Employees, Directors and Consultants
Employees Directors And Consultants [Member]
Senior management and directors.
Senior Management and Directors
Senior Management And Directors [Member]
Capital stock, shares authorized
Capital stock, par value
Aggregate number of units issued (in shares)
Sale Of Stock Number Of Shares Issued In Transaction
Aggregate number of units issued, per unit ($ per shares)
Sale Of Stock Price Per Share
Net proceeds from issuance or sale of equity.
Sale of equity units description of transaction.
Class of warrant or right description.
Net proceeds from issuance of common stock and warrants
Net Proceeds From Issuance Or Sale Of Equity
Expected term of warrant
Warrants And Rights Outstanding Term
Exercise price of warrants
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1
Sale of equity units description
Sale Of Equity Units Description Of Transaction
Class of warrant description
Class Of Warrant Or Right Description
Capital stock, shares issued
Capital stock, shares outstanding
Class of warrant or right issued.
Warrants And Rights Note Disclosure [Abstract]
Class Of Warrant Or Right [Table]
Class Of Warrant Or Right [Table]
Class Of Warrant Or Right [Line Items]
Class Of Warrant Or Right [Line Items]
Warrants, Outstanding, Beginning Balance
Class Of Warrant Or Right Outstanding
Warrants, Issued
Class Of Warrant Or Right Issued
Warrants, Exercised
Warrants, Outstanding, Ending Balance
Class of warrant or right weighted average exercise price of warrants or rights outstanding
Class of warrant or right exercise price of warrants or rights issued.
Class of warrant or rights weighted average exercise price of warrants or rights exercised.
Weighted Average Exercise Price, Outstanding, Beginning Balance
Class Of Warrant Or Right Weighted Average Exercise Price Of Warrants Or Rights Outstanding
Weighted Average Exercise Price, Issued
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights Issued
Weighted Average Exercise Price, Exercised
Class Of Warrant Or Rights Weighted Average Exercise Price Of Warrants Or Rights Exercised
Weighted Average Exercise Price, Outstanding, Ending Balance
Share based compensation arrangement by share based payment award equity instruments other than options issued weighted average remaining contractual terms .
Weighted-Average Remaining Contractual Term (Years), Outstanding
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms
Weighted-Average Remaining Contractual Term (Years), Issued
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Issued Weighted Average Remaining Contractual Terms
Aggregate Intrinsic Value, Outstanding, Beginning Balance
Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding
Aggregate Intrinsic Value, Issued
Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Vested
Aggregate Intrinsic Value, Outstanding, Ending Balance
Share based compensation arrangement by share based payment award options grants weighted average remaining contractual term.
Number of options and stock available for grant to employees
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant
Weighted average remaining contractual term (in years), grants
Share Based Compensation Arrangement By Share Based Payment Award Options Grants Weighted Average Remaining Contractual Term
Stock options strike price.
Options, Granted
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
Stock options, strike price
Stock Options Strike Price
Stock options, term
Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period
Stock options, vesting description
Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights
Share based compensation arrangement by share based payment award fair value assumptions expected dividend per share.
Share based compensation arrangement by share based payment award fair value assumptions weighted average fair value.
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Scenario
Statement Scenario [Axis]
Scenario
Scenario Unspecified [Domain]
Scenario Forecast
Scenario Forecast [Member]
Weighted average risk-free interest rate
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
Weighted-average volatility
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate
Expected dividends
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Per Share
Weighted average expected term (years)
Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1
Weighted average fair value
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Fair Value
Award Type
Award Type [Axis]
Award Type
Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain]
Stock Options
Employee Stock Option [Member]
Shares [Abstract]
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward
Options, Outstanding, Beginning balance
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
Options, Exercised
Stock Issued During Period Shares Stock Options Exercised
Options, Forfeited or expired
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
Options, Outstanding, Ending balance
Options, Exercisable at December 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
Weighted-Average Exercise Price [Abstract]
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Rollforward
Weighted Average Exercise Price, Options, Outstanding, Beginning balance
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
Weighted Average Exercise Price, Options, Granted
Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price
Weighted Average Exercise Price, Options, Exercised
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
Weighted Average Exercise Price, Options, Forfeited or expired
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price
Weighted Average Exercise Price, Options, Outstanding, Ending balance
Weighted Average Exercise Price, Options, Exercisable at December 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
Sharebased compensation arrangement by sharebased payment award options granted weighted average remaining contractual term.
Sharebased compensation arrangement by sharebased payment award options forfeited or expired weighted average remaining contractual term.
Weighted Average Remaining Contractual Term (Years), Options, Outstanding
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
Weighted Average Remaining Contractual Term (Years), Options, Granted
Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term (Years), Options, Forfeited or expired
Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeited Or Expired Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term (Years), Options, Exercisable at December 31, 2019
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
Aggregate Intrinsic Value, Options, Outstanding at December 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
Aggregate Intrinsic Value, Options, Exercisable at December 31, 2019
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
Options [Abstract]
Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares Roll Forward
Non-vested Options, Beginning balance
Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares
Non-vested Options, Granted
Non-vested Options, Vested
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares
Non-vested Options, Forfeited
Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares
Non-vested Options, Ending balance
Weighted-Average Grant-Date Fair Value [Abstract]
Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value [Abstract]
Non-vested Options, Beginning balance
Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value
Non-vested Options, Granted
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
Non-vested Options, Vested
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value
Non-vested Options, Forfeited
Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value
Non-vested Options, Ending balance
Total unrecognized compensation cost related to non-vested share based compensation
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized
Expected weighted-average period of unrecognized compensation cost
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1
Total fair value of share based compensation arrangements vested
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value
Debt Instruments [Abstract]
Debt Instrument [Table]
Debt Instrument [Table]
Debt Instrument
Debt Instrument [Axis]
Debt Instrument, Name
Debt Instrument Name [Domain]
Twenty twenty three convertible secured notes.
2023 Secured Convertible Notes
Twenty Twenty Three Convertible Secured Notes [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
2023 Secured Convertible Notes
Less: unamortized discount and issuance costs
Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net
Non-Current Debt
Long Term Debt
2023 Secured Convertible Notes
Convertible Debt Current
Short-term Debt
Short Term Borrowings
Aggregate offering price per debt instrument.
Aggregate price per debt instrument
Amortization of financing costs and discounts interest expense term.
Debt instrument, covenant working capital.
Principal amount of convertible notes
Debt Instrument Face Amount
Agreed sale price of note
Aggregate Offering Price Per Debt Instrument
Principal amount per notes
Aggregate Price Per Debt Instrument
Convertible notes due period
Debt Conversion Original Debt Due Date Of Debt Year
Convertible senior notes interest rate
Debt Instrument Interest Rate Stated Percentage
Convertible note, interest payment
Debt Instrument Frequency Of Periodic Payment
Conversion price
Debt Instrument Convertible Conversion Price1
Amortization of debt discount and issuance costs
Amortization of debt discount interest expense term
Amortization Of Financing Costs And Discounts Interest Expense Term
Debt instrument, covenant description
Debt Instrument Covenant Description
Convertible note, stock price trigger (in dollars per share)
Debt Instrument Convertible Stock Price Trigger
Threshold consecutive trading days for convertible debt
Debt Instrument Convertible Threshold Consecutive Trading Days1
Convertible note, covenant working capital
Debt Instrument Covenant Working Capital
Mineral properties.
Mineral properties.
Mineral Properties [Table]
Mineral Properties [Table]
Mineral properties by name of property.
Mineral Properties By Name Of Property
Mineral Properties By Name Of Property [Axis]
Mineral properties by name of property.
Mineral Properties By Name Of Property
Mineral Properties By Name Of Property [Domain]
Sleeper Gold Mine.
Sleeper Gold Project
Sleeper Gold Mine [Member]
Grassy Mountain Project.
Grassy Mountain Project
Grassy Mountain Project [Member]
Mineral Properties [Line Items]
Mineral Properties [Line Items]
Mineral properties, net
The number of mining claims that the company owns the right to that haven't been patented as of the balance sheet date.
Area covered under unpatented lode mining claims that the Entity owns.
Geographical
Statement Geographical [Axis]
Geographical
Segment Geographical [Domain]
Nevada
NEVADA
Oregon
OREGON
Unpatented mining claims
Number Of Unpatented Mining Claims
Area covered by lode mining claims
Unpatented Lode Mining Claims Area
Number of unpatented lode mining claims.
Number of patented lode mining claims.
Area covered under various mining claims that the Entity owns.
Unpatented lode mining claims
Number Of Unpatented Lode Mining Claims
Patented lode mining claims
Number Of Patented Lode Mining Claims
Area covered by mining claims
Mining Claims Covered Area
Insurance policy, maximum reclamation costs covered.
Site Contingency [Table]
Site Contingency [Table]
Environmental Remediation Site
Environmental Remediation Site [Axis]
Environmental Remediation Site
Environmental Remediation Site [Domain]
Measurement Input Risk Free Interest Rate
Measurement Input Risk Free Interest Rate [Member]
Site Contingency [Line Items]
Site Contingency [Line Items]
Maximum reclamation costs covered by insurance policy
Insurance Policy Maximum Reclamation Costs Covered
Commutation account and reclamation bonds
Inflation rate assumption used in valuing an estimate of reclamation costs.
Estimated amount of a reclamation cost that is associated with a legal obligation for the closure and reclamation of a mine including the removal of buildings, equipment, machinery and other physical remnants of mining, closure of tailings impoundments, leach pads and other mine features, and contouring, covering and re-vegetation of waste rock piles and other disturbed areas, before the discount of interest rate and inflation rate assumptions.
Undiscounted estimate of reclamation costs
Estimated Undiscounted Reclamation Cost
Credit adjusted risk free rate
Alternative Investment Measurement Input
Inflation rate
Fair Value Assumptions Inflation Rate
Asset Retirement Obligation Disclosure [Abstract]
Balance at beginning of period
Asset Retirement Obligation
Accretion expense
Payments
Asset Retirement Obligation Liabilities Settled
Change in estimate of existing obligation
Asset Retirement Obligation Revision Of Estimate
Balance at end of period
Asset retirement obligation
Asset retirement obligation, current
Asset retirement obligation, noncurrent
Asset Retirement Obligations Noncurrent
Re-imbursement of reclamation costs
Insurance Recoveries
Leasing of water rights to third party
Operating Leases Income Statement Lease Revenue
Total
Schedule Of Segment Reporting Information By Segment [Table]
Schedule Of Segment Reporting Information By Segment [Table]
Segments
Statement Business Segments [Axis]
Segments
Segment [Domain]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Exploration Expenses
Land Holding Costs
2020
Operating Leases Future Minimum Payments Remainder Of Fiscal Year
2021
Operating Leases Future Minimum Payments Due In Two Years
Commitments and contingencies.
Commitments and contingencies.
Commitments And Contingencies [Table]
Commitments And Contingencies [Table]
Minimum
Frost Project.
Frost Project
Frost Project [Member]
Commitments And Contingencies [Line Items]
Commitments And Contingencies [Line Items]
Net rental expense
Operating Leases Rent Expense Net
Area of mining fields.
Option to purchase mining claims price.
Percentage of royalty.
Number of mining fields
Number Of Businesses Acquired
Area covered by mining claims
Area Of Mining Fields
Annual lease payment, year one
Operating Leases Future Minimum Payments Due Current
Annual lease payment, year two
Annual lease payment, thereafter
Operating Leases Future Minimum Payments Due Thereafter
Option to purchase mining claims, price
Option To Purchase Mining Claims Price
Term of the agreement
Lessor Operating Lease Term Of Contract
Royalty rate
Percentage Of Royalty
Percentage of mining claim rights acquired.
Percentage of net smelter royalty.
Rate of right to reduce net smelter royalty by parent.
Percentage of mining claim rights acquired
Percentage Of Mining Claim Rights Acquired
Total consideration payable
Contractual Obligation
Percentage of Net Smelter Royalty
Percentage Of Net Smelter Royalty
Rate of right to reduce net smelter royalty by parent
Rate Of Right To Reduce Net Smelter Royalty By Parent
Payment to reduce NSR by parent
Payments To Acquire Mineral Rights
Number of shares issued for payment of interest accrued.
Subsequent Event [Table]
Subsequent Event [Table]
Subsequent Event Type
Subsequent Event Type [Axis]
Subsequent Event Type
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Common stock shares issued for payment of interest accrued
Number Of Shares Issued For Payment Of Interest Accrued