Document and Entity Information [Abstract] Document and Entity Information [Abstract] Statement [Table] Legal Entity [Axis] Entity [Domain] Statement [Line Items] Document Type Amendment Flag Amendment Description Document Period End Date Trading Symbol Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Voluntary Filers Entity Well Known Seasoned Issuer Entity Public Float Document Fiscal Year Focus Document Fiscal Period Focus Statement of Financial Position [Abstract] ASSETS Current Assets Cash Marketable securities Prepaid expenses and deposits Other current assets Total Current Assets Prepaid Expenses and Deposits Mineral Property Reclamation Surety Deposits Property and Equipment Construction in Progress Construction in Progress Total Assets LIABILITIES AND STOCKHOLDERS' EQUITY Current Liabilities Accounts payable Accrued liabilities Due to related parties Current portion of loan payable Total Current Liabilities Asset Retirement Obligations Total Liabilities Stockholders' Equity Preferred Stock, 10,000,000 shares authorized, $0.001 par value; No shares issued and outstanding Common Stock, 750,000,000 shares authorized, $0.001 par value; 77,207,574 (2011 - 77,086,774) shares issued and outstanding Additional Paid-in Capital Deficit Accumulated During the Exploration Stage Total Stockholders' Equity Non-controlling Interest Total Equity Total Liabilities and Stockholders' Equity Preferred Stock, Shares Authorized Preferred Stock, Par Value Per Share Common Stock, Shares Authorized Common Stock, Par Value Per Share Common Stock, Shares, Issued Common Stock, Shares, Outstanding Statement of Operations [Abstract] Revenue Expenses Depreciation Accretion expense Foreign exchange General and administrative Mineral property expenditures Total Operating Expenses Operating Loss Other Income (Expense) Gain on sale of investment securities Interest income Adjustment of cash equivalents Loss on settlement of debt Mineral property option payments received Mineral property option payments received Total Other Income Loss from continuing operations Discontinued operations Loss from discontinued operations Gain on disposal of discontinued operations Gain on Discontinued Operations Net Loss and Comprehensive Loss Net Loss and Comprehensive Loss attributable to non-controlling interest Net Loss and Comprehensive Loss Attributable to Company Stockholders Amounts attributable to Company stockholders Loss from continuing operations Gain on discontinued operations Net Loss Attributable to the Company Net Loss Per Share - Basic and Diluted Weighted Average Number of Shares Outstanding Statement of Cash Flows [Abstract] Operating Activities Net loss and comprehensive loss Adjustments to reconcile net loss to cash used in operating activities: Depreciation Accretion expense Increase in asset retirement obligation Equity loss on investment Gain on disposition of discontinued operations Gain on sale of investment securities Loss on settlement of debt Non-cash mineral property option payment Non-cash mineral property option payment Non-controlling interest Shares issued to acquire mineral properties Shares issued to acquire mineral properties Warrants issued for mineral property costs Warrants issued for mineral property costs Stock-based compensation Changes in operating assets and liabilities: Prepaid expenses and deposits Other current assets Asset retirement obligation Accounts payable and accrued liabilities Due to related parties Net Cash Used in Operating Activities Investing Activities Reclamation surety deposits Acquisition of subsidiary, net cash paid Proceeds from sale of marketable securities Investment in property and equipment Equipment deposits Purchase of investment securities Disposition of subsidiary Net Cash Used in Investing Activities Financing Activities Repayment of loan payable Advances from related party Contributions from non-controlling interest Proceeds from issuance of common stock Share issuance costs Net Cash Provided by Financing Activities Increase (Decrease) In Cash Cash - Beginning of Period Cash - End of Period Non-cash Investing and Financing Activities Sale of 60% of subsidiary for interest in mineral property Sale of 60% of subsidiary for interest in mineral property Investment securities received as a mineral property option payment Investment securities received as a mineral property option payment Purchase of equipment with loan payable Purchase of equipment with loan payable Stock options issued for mineral property expenditures Stock options issued for construction in progress Common stock issued to settle debt Common stock issued to settle debt Warrants issued for mineral property costs Warrants issued for mineral property costs Common stock purchase warrants issued for mineral property costs Common stock purchase warrants issued for mineral property costs Common stock issued for mineral property costs Common stock issued for mineral property costs Supplemental Disclosures Interest paid Income taxes paid Equity Components [Axis] Equity Components [Domain] Common Stock [Member] Additional Paid-In Capital [Member] Accumulated Other Comprehensive Income [Member] Deficit Accumulated During the Exploration Stage [Member] Noncontrolling Interest [Member] Statement of Stockholders Equity [Abstract] Beginning Balance Beginning Balance (Shares) Shares Issued (Shares) Shares issued for cash at $0.001 per share Shares issued for cash at $0.001 per share Shares issued for cash at $0.001 per share (Shares) Shares issued for cash at $0.001 per share (Shares) Shares Issued (Shares) (SharesIssued) Shares issued for cash at $0.01 per share Shares issued for cash at $0.01 per share Shares issued for cash at $0.01 per share (Shares) Shares issued for cash at $0.01 per share (Shares) Shares issued to acquire mineral property interest at $0.01 per share Shares issued to acquire mineral property interest at $0.01 per share Shares issued to acquire mineral property interest at $0.01 per share (Shares) Shares issued to acquire mineral property interest at $0.01 per share (Shares) Shares issued for cash at $0.35 per share Shares issued for cash at $0.35 per share Shares issued for cash at $0.35 per share (Shares) Shares issued for cash at $0.35 per share (Shares) Shares issued for cash at $0.10 per share Shares issued for cash at $0.10 per share Shares issued for cash at $0.10 per share (Shares) Shares issued for cash at $0.10 per share (Shares) Shares issued for cash at $0.40 per unit Shares issued for cash at $0.40 per unit Shares issued for cash at $0.40 per unit (Shares) Shares issued for cash at $0.40 per unit (Shares) Shares issued for compensation to related parties at a fair value of $1.01 per share Shares issued for compensation to related parties at a fair value of $1.01 per share Shares issued for compensation to related parties at a fair value of $1.01 per share (Shares) Shares issued for compensation to related parties at a fair value of $1.01 per share (Shares) Shares issued for cash at $1.00 per share Shares issued for cash at $1.00 per share Shares issued for cash at $1.00 per share (Shares) Shares issued for cash at $1.00 per share (Shares) Shares issued for cash at $1.75 per share Shares issued for cash at $1.75 per share Shares issued for cash at $1.75 per share (Shares) Shares issued for cash at $1.75 per share (Shares) Shares issued for finders fees Shares issued for finders fees Shares issued for finders fees (Shares) Shares issued for finders fees (Shares) Shares issued for services at $0.91 per share Shares issued for services at $0.91 per share Shares issued for services at $0.91 per share (Shares) Shares issued for services at $0.91 per share (Shares) Shares issued to acquire mineral properties Shares issued to acquire mineral properties Shares issued to acquire mineral properties (Shares) Shares issued to acquire mineral properties (Shares) Fair value of stock options granted Fair value of stock options granted (Shares) Fair value of warrants issued for mineral property costs Fair value of warrants issued for mineral property costs Fair value of warrants issued for mineral property costs (Shares) Fair value of warrants issued for mineral property costs (Shares) Shares issued upon the exercise of options Shares issued upon the exercise of options (Shares) Shares issued upon the exercise of warrants Shares issued upon the exercise of warrants (Shares) Shares issued pursuant to public offering Shares issued pursuant to public offering Shares issued pursuant to public offering (Shares) Shares issued pursuant to public offering (Shares) Shares issued pursuant to private placement Shares issued pursuant to private placement Shares issued pursuant to private placement (Shares) Shares issued pursuant to private placement (Shares) Shares issued to settle debt Shares issued to settle debt Shares issued to settle debt (Shares) Shares issued to settle debt (Shares) Share issuance costs Contribution from non-controlling interest Foreign currency translation adjustments Net loss for the year Ending Balance Ending Balance (Shares) Notes to Financial Statements [Abstract] Notes to Financial Statements [Abstract] Nature of Operations [Text Block] Summary of Significant Accounting Policies [Text Block] Cash and Cash Equivalents [Text Block] Property and Equipment [Text Block] Construction In Progress [Text Block] Construction In Progress [Text Block] Mineral Properties [Text Block] Mineral Properties [Text Block] Balance Sheet Details [Text Block] Related Party Transactions / Balances [Text Block] Asset Retirement Obligations [Text Block] Common Stock [Text Block] Stock Based Compensation [Text Block] Stock Purchase Warrants [Text Block] Shareholder Rights Plan [Text Block] Commitments [Text Block] Income Taxes [Text Block] Interest Income [Text Block] Segment Disclosures [Text Block] Subsequent Events [Text Block] Restatement of Financial Statements [Text Block] Restatement of Financial Statements Loan Payable [Text Block] Basis of Presentation and Principles of Consolidation [Policy Text Block] Use of Estimates [Policy Text Block] Cash and Cash Equivalents [Policy Text Block] Property and Equipment [Policy Text Block] Construction in Progress [Policy Text Block] Financial Instruments/Concentrations [Policy Text Block] Mineral Property Costs [Policy Text Block] Mineral Property Costs Contingent Liabilities - Off Balance Sheet Arrangements [Policy Text Block] Asset Retirement Obligations [Policy Text Block] Foreign Currency Translation [Policy Text Block] Comprehensive Loss [Policy Text Block] Long-lived Assets [Policy Text Block] Stock-based Compensation [Policy Text Block] Basic and Diluted Net Loss Per Share [Policy Text Block] Income Taxes [Policy Text Block] Recent Accounting Pronouncements [Policy Text Block] Recently Issued Accounting Pronouncements [Policy Text Block] Recently Issued Accounting Pronouncements Reclassifications [Policy Text Block] Schedule of Property, Plant and Equipment [Table Text Block] Schedule of Construction in Progress [Table Text Block] Schedule of Construction in Progress Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Schedule of Accrued Liabilities [Table Text Block] Schedule of Change in Asset Retirement Obligation [Table Text Block] Schedule of Stock Options Roll Forward [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Share-based Compensation, Non-vested Stock Options, Activity [Table Text Block] Schedule of ShareBased Compensation, Non-vested Stock Options, Activity Schedule of Stockholders' Equity Note, Warrants or Rights, Activity [Table Text Block] Schedule of Stockholders' Equity Note, Warrants or Rights, Activity [Table Text Block] Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Summary of Operating Loss Carryforwards [Table Text Block] Reconciliation of Assets from Segment to Consolidated [Table Text Block] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Schedule of Prior Year's Consolidated Balance Sheet [Table Text Block] Schedule of Prior Year's Consolidated Balance Sheet Schedule of Prior Year's Consolidated Statement of Operations [Table Text Block] Schedule of Prior Year's Consolidated Statement of Operations Schedule of Prior Year's Consolidated Statement of Cash Flows [Table Text Block] Schedule of Prior Year's Consolidated Statement of Cash Flows Mineral Properties [Axis] Mineral Properties [Axis] Mineral Properties [Domain] Mineral Properties [Domain] Nichols Ranch ISR Uranium Project [Member] Nichols Ranch ISR Uranium Project Cash Cash Required Cash Required Related Party Transactions, by Related Party [Axis] Related Party [Domain] Arkose [Member] Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions Mineral property expenditures Restoration and reclamation obligations Asset Retirement Obligation, Current Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Cash and Cash Equivalents, at Carrying Value Powder River Basin area [Member] Powder River Basin area Campbell County [Member] Campbell County North Reno Creek [Member] North Reno Creek Mineral Property Transaction [Axis] Mineral Property Transaction Mineral Property Transaction [Domain] Mineral Property Transaction Lease Agreements [Member] Warrants Issued for Mineral Property [Member] Warrants Issued for Mineral Property Range [Axis] Range [Domain] Minimum [Member] Maximum [Member] Equity Transaction [Axis] Equity Transaction [Axis] Equity Transaction [Domain] Equity Transaction [Domain] 2005 Non-Qualified Stock Option Plan [Member] 2005 Non-Qualified Stock Option Plan Stock Option Plan [Member] January 10, 2011 Stock options granted to directors, officers, employees and consultants [Member] January 10, 2011 Stock options granted to directors, officers, employees and consultants August 13, 2010 Warrants issued for acquisition of intellectual property [Member] August 13, 2010 Warrants issued for acquisition of intellectual property Shareholder Rights Plan [Member] Shareholder Rights Plan Modification of Expiry date [Member] Modification of Expiry date Mineral Right Interest Acquired Mineral Right Interest Acquired Number of Mineral Claims Acquired Number of Mineral Claims Acquired Payments to Acquire Mineral Rights Royalty Fee Percentage Royalty Fee Percentage Area of Land Warrants Issued During Period, Value Warrants Issued During Period, Value Class of Warrant or Right, Grants in Period, Net of Forfeitures Class of Warrant or Right, Grants in Period, Net of Forfeitures Class of Warrant or Right, Grants in Period, Exercise Price Class of Warrant or Right, Grants in Period, Exercise Price A company controlled by a Director [Member] A company controlled by a Director Officers [Member] Non-executive directors [Member] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Consulting services [Member] Consulting services Bonus [Member] Related Party Transaction, Amounts of Transaction Due to Related Parties, Current Repayments of Related Party Debt Mineral Property Reclamation Surety Deposits Number of Holes Related to a Surety Bond Number of Holes Related to a Surety Bond Asset Retirement Obligation, Cash Paid to Settle Other Mineral Property Reclamation Surety Deposits Other Mineral Property Reclamation Surety Deposits Stock Issued During Period, Shares, Stock Options Exercised Stock Issued During Period, Value, Stock Options Exercised Class of Warrant or Right, Exercises in Period Class of Warrant or Right, Exercises in Period Proceeds from Warrant Exercises Common Stock, Shares Authorized Stock Issued During Period, Shares, Issued for Cash Stock Issued During Period, Value, Issued for Cash Payments of Stock Issuance Costs Equity Outstanding [Axis] Equity Outstanding [Axis] Equity Outstanding [Domain] Equity Outstanding [Domain] Non-vested stock options [Member] Non-vested stock options Warrants [Member] Rights [Member] Stock Options granted with an exercise price of $3.98 [Member] Stock Options granted with an exercise price of $3.98 Stock Options granted with an exercise price of $3.21 [Member] Stock Options granted with an exercise price of $3.21 Stock Options granted with an exercise price of $2.87 [Member] Stock Options granted with an exercise price of $2.87 Modification of Stock Options [Member] Modification of Stock Options Options Granted 1 [Member] Options Granted 1 Options Granted 2 [Member] Options Granted 2 Options Granted 3 [Member] Options Granted 3 Options Granted 4 [Member] Options Granted 4 Options Granted 5 [Member] Options Granted 5 Options Granted 6 [Member] Options Granted 6 Nature of Expense [Axis] Component of Other Operating Cost and Expense, Name [Domain] General and administrative expense [Member] General and administrative expense Exploration expenses [Member] Exploration expenses Construction in Progress [Member] Common Stock, Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Grant Date Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Grant Date Intrinsic Value Stock-based compensation Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Term Options, Vesting Percentage, Date of Grant Options, Vesting Percentage, Date of Grant Options, Vesting Percentage, First Anniversary of Date of Grant Options, Vesting Percentage, First Anniversary of Date of Grant Options, Vesting Percentage, Second Anniversary of Date of Grant Options, Vesting Percentage, Second Anniversary of Date of Grant Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting During Period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting During Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Non-vested Options, Unrecognized Compensation Costs Share-based Compensation Arrangement by Share-based Payment Award, Non-vested Options, Unrecognized Compensation Costs Share-based Compensation Arrangement by Share-based Payment Award, Non-vested Options, Unrecognized Compensation Costs, Weighted Average Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Non-vested Options, Unrecognized Compensation Costs, Weighted Average Vesting Period Class of Warrant or Right, Grants in Period, Net of Forfeitures Warrants Issued During Period, Underlying Shares Warrants Issued During Period, Underlying Shares Class of Warrant or Right, Grants in Period, Exercise Price Class of Warrant or Right, Grants in Period, Term Class of Warrant or Right, Grants in Period, Term Proceeds from Warrant Exercises Class of Warrant or Right, Expirations in Period Class of Warrant or Right, Expirations in Period Number of Rights Granted Per Common Share Outstanding Number of Rights Granted Per Common Share Outstanding Exercise Price of Rights Commitment Transaction [Axis] Commitment Transaction [Axis] Commitment Transaction [Domain] Commitment Transaction [Domain] Two mining lease agreements [Member] Two mining lease agreements Nichols Ranch Power Line Extension Project [Member] Nichols Ranch Power Line Extension Project Processing agreement [Member] Processing agreement Construction Purchase Orders [Member] Scenario [Axis] Scenario, Unspecified [Domain] As Reported [Member] Restatement Adjustment [Member] Actual [Member] Approximate [Member] Approximate Long term commitment, number of annual payments Long term commitment, number of annual payments Long term commitment, annual payment amount Long term commitment, annual payment amount Long-term Purchase Commitment, Amount Engineering and design expense Engineering and design expense Deposits Assets, Noncurrent Operating Leases, Term Operating Leases, Term Operating Leases, Annual Payments Operating Leases, Annual Payments Operating Leases, Renewable Term Operating Leases, Renewable Term Net Operating Loss Carryforwards Increase in valuation allowance Subsequent Event Type [Axis] Subsequent Event Type [Domain] Non-binding term sheet [Member] Non-binding term sheet Industrial Development Bond [Member] Industrial Development Bond Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Modfied Expiry Date Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Modfied Expiry Date Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Subsequent Event, Amount Debt Instrument, Interest Rate, Stated Percentage Mineral property expenditures Construction in Progress Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Domain] Computers and office equipment [Member] Field equipment [Member] Field equipment [Member] Cost Accumulated Depreciation Net Carrying Value Processing Facility [Member] Processing Facility Equipment [Member] Accumulated Depreciation of Construction in Progress Accumulated Depreciation of Construction in Progress Insurance Lease costs Lease costs Reclamation bonding Surface use and damage costs Surface use and damage costs Other Current prepaid expenses and deposits Deposits Power supply advance Power supply advance Surface use and damage costs Surface use and damage costs Power supply deposit Power supply deposit Non-current prepaid expenses and deposits Construction expenses Mineral exploration expenses Mineral exploration expenses Reclamation costs Registration fees Employee expense Executive compensation Professional fees Other Total accrued liabilities Asset Retirement Obligation, Beginning Balance Liabilities incurred Reclassified from current liabilities Accretion expense Revision of estimated cash flows Asset Retirement Obligation, Ending Balance Proceeds from Stock Options Exercised Expected dividend yield Risk-free interest rate Expected volatility Expected option life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Beginning of Period Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term, Beginning of Period Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, End of Period Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Grant Date Fair Value, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Grant Date Fair Value, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting During Period, Number Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting During Period, Number Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting During Period, Weighted Average Grant date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting During Period, Weighted Average Grant date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Grant Date Fair Value, End of Period Class of Warrant or Right, Outstanding, Beginning of Period Class of Warrant or Right, Outstanding, Weighted Average Exercise Price, Beginning of Period Class of Warrant or Right, Outstanding, Weighted Average Exercise Price, Beginning of Period Class of Warrant or Right, Grants in Period, Weighted Average Exercise Price Class of Warrant or Right, Grants in Period, Weighted Average Exercise Price Class of Warrant or Right, Exercises in Period Class of Warrant or Right, Exercises in Period, Weighted Average Exercise Price Class of Warrant or Right, Exercises in Period, Weighted Average Exercise Price Class of Warrant or Right, Expirations in Period Class of Warrant or Right, Expirations in Period, Weighted Average Exercise Price Class of Warrant or Right, Expirations in Period, Weighted Average Exercise Price Class of Warrant or Right, Outstanding, End of Period Class of Warrant or Right, Outstanding, Weighted Average Exercise Price, End of Period Class of Warrant or Right, Outstanding Class of Warrant or Right, Exercise Price of Warrants or Rights Net loss before taxes Statutory rate Computed expected tax (recovery) Computed expected tax (recovery) Stock-based compensation Depreciation Joint venture chargeback Joint venture chargeback Miscellaneous Increase (decrease) in valuation allowance: Increase (decrease) in valuation allowance: Net operating loss Net operating loss Exploration and mineral property costs Capital assets Capital assets Construction in progress Construction in progress Reported income taxes Net operating losses Deferred tax assets mineral property acquisition and exploration Deferred tax assets mineral property acquisition and exploration Capital assets Construction in progress Construction in progress Less valuation allowance Net deferred tax asset Income Tax Authority [Axis] Income Tax Authority [Domain] 1999 [Member] 1999 2000 [Member] 2000 2001 [Member] 2001 2002 [Member] 2002 2003 [Member] 2003 2004 [Member] 2004 2005 [Member] 2005 2006 [Member] 2006 2007 [Member] 2007 2008 [Member] 2008 2009 [Member] 2009 2010 [Member] 2010 2011 [Member] 2011 2012 [Member] 2012 Net Loss Uranerz [Member] Assets Net loss attributable to the Company Interest revenue Depreciation Accretion Depreciation Accretion ASSETS Property and Equipment Construction in Progress Total Assets Stockholders' Equity Total Stockholders Equity Total Equity Total Liabilities and Stockholders Equity Total Operating Expenses Loss from continuing operations Net Loss and comprehensive loss Net Loss Per Share Basic and Diluted Operating Activities Increase in asset retirement obligation Stock-based compensation Accounts payable and accrued liabilities Net Cash Used in Operating Activities Net Cash Used In Investing Activities Other current assets Total Current Assets Prepaid Expenses and Deposits (PrepaidExpenseNoncurrent) Construction In Progress Net Total Assets Total Current Liabilities Total Liabilities Deficit Accumulated During the Exploration Stage Total Stockholders Equity Total Equity Total Liabilities and Stockholders Equity Foreign exchange Total Operating Expenses Operating Loss Total Other Income Loss From Continuing Operations (IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments) Gain on Discontinued Operations Net Loss and Comprehensive Loss Net Loss and Comprehensive Loss attributable to non-controlling interest Net Loss and Comprehensive Loss Attributable to Company Stockholders Net Loss Attributable to the Company Net loss and comprehensive loss (ProfitLoss) Depreciation (DepreciationAndAmortization) Equity loss on investment Gain on sale of investment securities (GainLossOnSaleOfSecuritiesNet) Non Cash Mineral Property Option Payment Non-controlling interest (MinorityInterestInNetIncomeLossOtherMinorityInterests) Stock Issued To Acquire Mineral Properties Prepaid expenses and deposits (IncreaseDecreaseInPrepaidExpense) Other current assets (IncreaseDecreaseInOtherOperatingAssets) Asset retirement obligation (IncreaseDecreaseInAssetRetirementObligations) Due to related parties (IncreaseDecreaseInDueToRelatedParties) Net Cash Used in Operating Activities Reclamation surety deposits Acquisition of subsidiary, net cash paid Investment in property and equipment Equipment deposits Purchase of investment securities Net Cash Used In Investing Activities Repayment of loan payable Share issuance costs Net Cash Provided By Financing Activities Increase In Cash Sale Of Six Zero Of Subsidiary For Interest In Mineral Property Warrants Issued For Mineral Property Costs Two Shares Issued For Cash At Zero One Per Share Shares Issued For Cash At Zero One Per Share Shares Shares Issued For Cash At One Per Share Shares Issued For Cash At One Per Share Shares Shares Issued To Acquire Mineral Property Interest At One Per Share Shares Issued To Acquire Mineral Property Interest At One Per Share Shares Shares Issued For Cash At Three Five Per Share Shares Issued For Cash At Three Five Per Share Shares Shares Issued For Cash At One Zero Per Share Shares Issued For Cash At One Zero Per Share Shares Shares Issued For Cash At Four Zero Per Unit Shares Issued For Cash At Four Zero Per Unit Shares Shares Issued For Compensation To Related Parties At A Fair Value Of One One Per Share Shares Issued For Compensation To Related Parties At A Fair Value Of One One Per Share Shares Shares Issued For Cash At One Zero Zero Per Share Shares Issued For Cash At One Zero Zero Per Share Shares Shares Issued For Cash At One Seven Five Per Share Shares Issued For Cash At One Seven Five Per Share Shares Shares Issued For Services At Nine One Per Share Shares Issued For Services At Nine One Per Share Shares Shares Issued To Acquire Mineral Properties Shares Issued To Acquire Mineral Properties Shares Share issuance costs (AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts) Contribution from non-controlling interest Schedule Of Sharebased Compensation Nonvested Stock Options Activity [Table Text Block] Schedule Of Stockholders Equity Note Warrants Or Rights Activity [Text Block] Mineral Property [Axis] Mineral Property [Domain] Nichols Ranch I S R Uranium Project [Member] Cash Required Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Two Zero Zero Five Nonqualified Stock Option Plan [Member] January One Zero Two Zero One One Stock Options Granted To Directors Officers Employees And Consultants [Member] August One Three Two Zero One Zero Warrants Issued For Acquisition Of Intellectual Property [Member] Repayments of Related Party Debt Number Of Holes Related To A Specific Surety Bond Asset Retirement Obligation Other Legally Restricted Assets Fair Value Class Of Warrant Or Right Exercised Proceeds from Warrant Exercises Stock Issued During Period, Shares, Issued for Cash Stock Issued During Period, Value, Issued for Cash Nonvested Stock Options [Member] Stock Options Granted With An Exercise Price Of Three Nine Eight [Member] Stock Options Granted With An Exercise Price Of Three Two One [Member] Stock Options Granted With An Exercise Price Of Two Eight Seven [Member] Options Granted One [Member] Options Granted Two [Member] Options Granted Three [Member] Options Granted Four [Member] Options Granted Five [Member] Options Granted Six [Member] Generalandadministrative [Member] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Grant Date Intrinsic Value Options Vesting Percentage Date Of Grant Options Vesting Percentage First Anniversary Of Date Of Grant Options Vesting Percentage Second Anniversary Of Date Of Grant Share Based Compensation Arrangement By Share Based Payment Award Non Vested Options Unrecognized Compensation Costs Weighted Average Vesting Period Class Of Warrant Or Right Grants In Period Underlying Shares Class Of Warrant Or Right Grants In Period Term Class Of Warrant Or Right Expirations In Period Net Operating Loss Carryforwards Increase in valuation allowance Nonbinding Term Sheet [Member] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Subsequent Event, Amount Debt Instrument, Interest Rate, Stated Percentage Construction in Progress Accumulated Depreciation Of Construction In Progress Prepaid Lease Costs Surface Use And Damage Costs Current Other Surface Use And Damage Costs Noncurrent Accrued Mineral Exploration Expenses Other (OtherAccruedLiabilitiesCurrent) Asset Retirement Obligation, Beginning Balance Liabilities incurred Reclassified from current liabilities Accretion expense (AssetRetirementObligationAccretionExpense) Revision of estimated cash flows Proceeds from Stock Options Exercised Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term Instant Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value, Beginning of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number, End of Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price, End of Period Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term Instant Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value, End of Period Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award Award Vesting During Period Number Share Based Compensation Arrangement By Share Based Payment Award Award Vesting During Period Weighted Average Grant Date Fair Value Class of Warrant or Right, Outstanding, Beginning of Period Class Of Warrant Or Right Outstanding Weighted Average Exercise Price Class Of Warrant Or Right Grants In Period Weighted Average Exercise Price Class Of Warrant Or Right Exercises In Period Weighted Average Exercise Price Class Of Warrant Or Right Expirations In Period Weighted Average Exercise Price Statutory rate Computed Expected Tax Recovery Stock-based compensation (IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost) Depreciation (IncomeTaxReconciliationNondeductibleExpenseDepreciation) Income Tax Reconciliation Nondeductible Expense Joint Venture Chargeback Miscellaneous Increase Decrease In Valuation Allowance [Abstract] Valuation Allowances And Reserves Net Operating Loss Exploration and mineral property costs Valuation Allowance And Reserves Capital Assets Valuation Allowance And Reserves Construction In Progress Reported income taxes Net operating losses Deferred Tax Assets Mineral Property Acquisition And Exploration Capital assets Deferred Tax Assets Construction In Progress Less valuation allowance Net deferred tax asset One Nine Nine Nine [Member] Two Zero Zero Zero [Member] Two Zero Zero One [Member] Two Zero Zero Two [Member] Two Zero Zero Three [Member] Two Zero Zero Four [Member] Two Zero Zero Five [Member] Two Zero Zero Six [Member] Two Zero Zero Seven [Member] Two Zero Zero Eight [Member] Two Zero Zero Nine [Member] Two Zero One Zero [Member] Two Zero One One [Member] Two Zero One Two [Member] Net Loss Per Share Basic and Diluted (EarningsPerShareBasicAndDiluted)