Document and Entity Information Technical Services and Exploration Technical services and exploration Technical costs include professional fees and other costs associated with studying and maintaining potential mining sites. Exploration costs include costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of mineral reserves. Filing and License Fees Fees, filing, and licenses The amount of expense incurred during the period for fees including filing and licensing fees. Stock Received for Services Stock received for services This element represents Stock received for services. Payments for (Proceeds from) Available For Sale Securities Net proceeds from sale of available-for-sale securities The net cash inflow (outflow) associated with the sale or acquisition of debt and equity securities neither classified as held-to-maturity nor as trading securities, which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. Payments to Acquire Mineral Properties Increase in mineral properties The cash outflow associated with the acquisition of mineral properties. CERTIFICATES OF DEPOSIT: Certificates of Deposit [Text Block] CERTIFICATES OF DEPOSIT: The entire disclosure for certificates of deposit which includes both current and noncurrent including amounts pledged as security on a letter of credit. Stock Issued During Period Value Common Stock Issued Equity impact of the value of common stock issuable on exercise of warrants issued during the period. Issuable common stock issued Stock Issued During Period Shares Common Stock Issued Number of common stock issuable on exercise of warrants issued during the period. Issuable common stock issued (in shares) Amendment Description Cumulative adjustment for warrant derivative Adjustments to Additional Paid in Capital Cumulative Adjustment for Warrant Derivative Reduction to additional paid in capital resulting from cumulative adjustment for warrant derivative during the period. Amendment Flag Issuable Common Stock [Member] Issuable Common Stock Shares of common stock issuable upon exercise of warrants rights. Deficit Accumulated During the Exploration Stage Retained Earnings Exploration Stage [Member] The cumulative amount of the reporting entity's undistributed earnings or deficit during the exploration stage. MINING PROPERTIES: Mining Properties Disclosure [Text Block] MINING PROPERTIES: The entire disclosure for long lived, wasting assets that represent the legal right to explore, extract, and retain some or all portions of the benefits from mining or mineral deposits during the reporting period. Mining Properties Exploration and Development Cost [Policy Text Block] Mining properties, exploration and development costs Disclosure of accounting policy for exploration and development costs of acquired mining properties. Certificates of Deposit Maturing in August 2013 [Member] Certificates of deposit maturing in August 2013 Represents the investment in certificates of deposit which matures in August 2013. Certificates of Deposit Maturing on January 03, 2013 [Member] Certificates of deposit maturing on January 3, 2013 Represents the investment in certificates of deposit which matures on January 3, 2013. Certificates of Deposit Number Number of certificates of deposit owned Represents the number of certificates of deposit owned by the entity. Available For Sale Securities Number of Investment Positions Sold Number of investments in marketable equity securities sold Represents the number of investment positions classified as available-for-sale sold during the period. Asset Retirement Obligation Represents the asset retirement obligations of the entity. Asset Retirement Obligations [Member] Accretion expense Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Liability Accretion Expense Represents the amount of accretion expense recognized during the period in relation to liabilities measured at fair value and categorized within level 3 of the fair value hierarchy. Schedule of Derivatives Valuation Assumptions [Table Text Block] Schedule of assumptions used to estimate the fair value of warrants Tabular disclosure of the assumptions used in the fair value measurement of derivative instruments. Concentration Risk Number of Financial Institutions Number of financial institutions Represents the number of financial institutions in which cash and cash equivalents are maintained giving rise to concentration of credit risk. Concentration Risk Maximum Bank Deposits Insured Maximum balances insured by Federal Deposit Insurance Corporation Represents the maximum amount of bank deposit balances which is insured by the Federal Deposit Insurance Corporation. Concentration Risk Uninsured Bank Deposits Uninsured bank deposit balance The amount of bank deposits as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation. Class of Warrant or Right Cumulative Number of Warrants or Rights Exercised Cumulative warrants exercised (in shares) Represents the cumulative number of warrants or rights exercised as of the balance sheet date. Current Fiscal Year End Date Class of Warrant or Right Number of Warrants or Rights Exercised Warrants exercised (in shares) Represents the number of warrants or rights exercised during the period. Interest rate (as a percent) Investment Interest Rate Schedule of Share Based Compensation Non-vested Stock Options Activity [Table Text Block] Schedule of nonvested options Tabular disclosure of the change in nonvested stock options. Equity Incentive Plan 2012 [Member] 2012 Plan Represents the information pertaining to the 2012 Stock Incentive Plan that provides for grants of incentive stock options to employees and nonqualified stock options to directors, employees and consultants of the entity. Share Based Compensation Arrangement by Share Based Payment Award Options Exercise Price as Percentage of Fair Market Value of Per Share on Date of Grant Option exercise price as percentage of fair market value per share on the date of grant Represents the exercise price that participants pay for shares, expressed as a percentage of the fair market value of common stock on the date of grant. Share Based Compensation Arrangement by Share Based Payment Award Expiration Period Term of expiration The period of time in which the equity-based award expires. Share Based Compensation Arrangement by Share Based Payment Award Options Nonvested Number Nonvested at the beginning of the period (in shares) The number of non-vested stock options that validly exist and are outstanding as of the balance sheet date. Nonvested at the end of the period (in shares) Number of Options Share Based Compensation Arrangement by Share Based Payment Award Options Nonvested [Roll Forward] Share Based Compensation Arrangement by Share Based Payment Award Options Vested in Period Vested (in shares) Represents the number of stock options that vested during the reporting period. Share Based Compensation Arrangement by Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Weighted-Average Remaining Contractual Term Share Based Compensation Arrangement by Share Based Payment Award Options Aggregate Intrinsic Value [Abstract] Aggregate Intrinsic Value Share Based Compensation Arrangement by Share Based Payment Award Options Nonvested Weighted Average Grant Date Fair Value Nonvested at the beginning of the period (in dollars per share) The weighted-average grant-date fair value of nonvested options that are outstanding as of the balance sheet date under the stock option plans. Nonvested at the end of the period (in dollars per share) Document Period End Date Share Based Compensation Arrangement by Share Based Payment Award Options Vested in Period Weighted Average Grant Date Fair Value Vested (in dollars per share) The weighted-average fair value as of grant date pertaining to a stock option award for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with terms of the arrangement. Share Based Compensation Arrangement by Share Based Payment Award Options Nonvested Weighted Average Grant Date Fair Value [Abstract] Weighted-Average Grant-Date Fair Value Exploration Earn in Agreement [Member] Exploration Earn-In Agreement Represents information pertaining to the exploration earn-in agreement entered into by the entity. Percentage of Exploration Property that could be Acquired Percentage of Estrella exploration property located in central Peru that could be acquired by the company Represents the percentage of exploration property that could be acquired by the entity. Expenditure to be Spent on Exploration Activity for Acquiring Exploration Property Amount to be expended on exploration activity for acquiring certain percentage of Estrella exploration property Represents the amount to be expended on exploration activity for acquiring certain percentage of exploration property. Annual Cash Payments to be Made Prior to the End of the First Year Annual cash payments to be made prior to the end of the first agreement year ending on February 28, 2013 Represents the annual cash payment to be made prior to the end of the first agreement year for an agreement entered into during the period. Annual Cash Payments to be Made Prior to the End of Each Subsequent Year Until Completion of Earn in Period Annual cash payments to be made prior to the end of each subsequent agreement year until the earn-in has been completed Represents the annual cash payments to be made prior to the end of each subsequent year after the first year until the earn-in has been completed, for an agreement entered into during the period. Minimum Expenditure on Exploration and Development Activity to be Paid in Each Year Minimum amount of expenditure in exploration and development activity in each of the first and second years Represents the minimum amount of expenditure in exploration and development activity in each of the first and second years of an agreement entered into during the period. Stock Issued During Period Shares New Issues on Exercise of Over Allotment Option by Underwriter Number of shares issued on exercise of over-allotment option by underwriters Number of shares of new stock issued during the period upon exercise of over-allotment option by underwriters. Fair Value Assumptions Term of U.S. Treasury Securities Used for Determining Risk Free Interest Rate Term of U.S. treasury securities used for determining the risk-free interest rate Represents the term of U.S. treasury securities used for determining risk-free interest rate assumption used in valuing an instrument. Estrella Gold Corp. [Member] Estrella Gold Corp. Represents information pertaining to Estrella Gold Corp. Stock Issued During Period Shares New Issues Excluding Exercise of over Allotment Option by Underwriter Number of shares of common stock issued in public offering Number of shares of new stock issued during the period excluding exercise of over-allotment option by underwriters. Proceeds from Issuance of Common Stock Gross Gross proceeds Represents the cash inflow from the additional capital contribution to the entity, before deducting underwriting commissions and a corporate finance fee. Maximum number of shares to grant a participant in a calendar year Share Based Compensation Arrangement by Share Based Payment Award Maximum Grant Per Employee Represents the maximum number of shares of common stock that may be granted to a participant during any calendar year under the plan. Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Type Accounts payable Accounts Payable, Current Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Loss) [Member] Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Additional paid-in capital Additional Paid in Capital, Common Stock Additional Paid-in Capital Additional Paid-in Capital [Member] Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Total compensation costs recognized for stock-based employee compensation awards Allocated Share-based Compensation Expense Asset Retirement Obligation, Accretion Expense Accretion of asset retirement obligation ASSET RETIREMENT OBLIGATIONS: Asset retirement obligation Asset Retirement Obligations, Noncurrent Asset Impairment Charges Impairment of mineral properties Asset Retirement Obligation, Period Increase (Decrease) Initial measurement of asset retirement obligation ASSET RETIREMENT OBLIGATIONS: Asset Retirement Obligation Disclosure [Text Block] CURRENT ASSETS: Assets, Current [Abstract] Assets Assets [Abstract] Total current assets Assets, Current Total assets Assets Assets: Assets, Fair Value Disclosure [Abstract] Available-for-sale securities Available-for-sale Securities, Fair Value Disclosure Fair Market Value Cost Available-for-sale Equity Securities, Amortized Cost Basis Unrealized gains on available-for-sale securities Available-for-sale Securities, Gross Unrealized Gain (Loss) Available-for-sale Securities, Gross Realized Gain (Loss) Gain on sale of available-for-sale securities Gain on sale of available-for-sale securities Available-for-sale securities Available-for-sale Securities, Noncurrent Buildings and leasehold improvements Buildings and Improvements, Gross Cash and cash equivalents CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD CASH AND CASH EQUIVALENTS, END OF PERIOD Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and Cash Equivalents [Member] Certificates of deposit Certificates of Deposit, at Carrying Value Certificate of deposit value Common Shares: Class of Stock [Line Items] Class of Stock [Domain] COMMITMENTS: Commitments and Contingencies Disclosure [Text Block] COMMITMENTS: COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Common stock Common Stock [Member] Common shares, shares outstanding Common Stock, Shares, Outstanding Common shares - $0.001 par value, 100,000,000 shares authorized; 28,999,752 and 28,739,110 shares issued and outstanding, respectively Common shares - $0.001 par value, 100,000,000 shares authorized; 28,739,110 and 23,342,097 shares issued and outstanding, respectively Common Stock, Value, Issued Common shares, shares issued Common Stock, Shares, Issued Common shares, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common shares, shares authorized Common Stock, Shares Authorized COMPREHENSIVE LOSS: Comprehensive loss: Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive loss Comprehensive Income (Loss) Note [Text Block] COMPREHENSIVE LOSS: Comprehensive income (loss) Comprehensive Income [Member] Concentration Risk Type [Domain] CONCENTRATION OF CREDIT RISK Concentration Risk [Line Items] Concentration Risk Benchmark [Domain] Concentration Risk [Table] Concentration Risk Benchmark [Axis] CONCENTRATION OF CREDIT RISK: Concentration Risk Disclosure [Text Block] Concentration Risk Type [Axis] Concentration of credit risk Credit Concentration Risk [Member] Certificates of deposit Deposits Assets, Noncurrent Depreciation Depreciation Warrant derivatives Derivative Liabilities, Current Warrant derivatives Derivative [Line Items] WARRANT DERIVATIVES: Derivative Instruments and Hedging Activities Disclosure [Text Block] Warrant derivatives Derivative Financial Instruments, Liabilities, Fair Value Disclosure Derivative [Table] WARRANT DERIVATIVES: Derivative, by Nature [Axis] Derivative, Name [Domain] Derivative Instruments, Gain (Loss) Recognized in Income, Net Gain from warrant derivatives Gain from warrant derivatives Exploration Stage Enterprise Development Stage Enterprise General Disclosures [Text Block] Deficit accumulated during the exploration stage Development Stage Enterprise, Deficit Accumulated During Development Stage Disclosure of Compensation Related Costs, Share-based Payments [Text Block] STOCK OPTIONS: STOCK OPTIONS: STOCK OPTIONS: NET LOSS PER SHARE (basic and diluted) (in dollars per share) Earnings Per Share, Basic and Diluted NET INCOME (LOSS) PER SHARE: Earnings Per Share [Text Block] Net loss per share Earnings Per Share, Policy [Policy Text Block] NET INCOME (LOSS) PER SHARE: Payroll and payroll taxes payable Employee-related Liabilities, Current Weighted-average period over which compensation cost is expected to be recognized Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Cash received from options exercised Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Unrecognized compensation expense related to nonvested share-based compensation arrangements Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options Equity Component [Domain] Measurement Frequency [Axis] Fair Value, Hierarchy [Axis] Liability Class [Axis] Recurring basis Fair Value, Measurements, Recurring [Member] Balance at the beginning of the period Balance at the end of the period Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Fair value measurements Fair Value Measurement, Policy [Policy Text Block] Fair Value, Measurement Frequency [Domain] Risk-free interest rate (as a percent) Fair Value Assumptions, Risk Free Interest Rate Weighted average volatility (as a percent) Fair Value Assumptions, Weighted Average Volatility Rate Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value by Liability Class [Domain] Expected life Fair Value Assumptions, Expected Term Fair Value, Measurements, Fair Value Hierarchy [Domain] FAIR VALUE MEASUREMENTS Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Expected dividend yield (as a percent) Fair Value Assumptions, Expected Dividend Rate FAIR VALUE MEASUREMENTS: Fair Value Disclosures [Text Block] FAIR VALUE MEASUREMENTS: Level 3 Fair Value, Inputs, Level 3 [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Gain on warrant derivatives Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Fair value reconciliation of level 3 liabilities measured at fair value Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Schedule of fair value reconciliation of level 3 liabilities measured at fair value Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] FAIR VALUE MEASUREMENTS Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Office equipment Furniture and Fixtures, Gross General and Administrative Expense General and administrative CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS DEFERRED INCOME TAX: Income Tax Disclosure [Text Block] DEFERRED INCOME TAX: Increase (Decrease) in Accrued Interest Receivable, Net Interest receivable Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Employee Related Liabilities Payroll and payroll taxes payable Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and deposits Increase (Decrease) in Shareholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Interest Income (Expense), Nonoperating, Net Interest income, net Interest receivable Interest Receivable, Current Interest paid Interest Paid Investment Type Categorization [Domain] Investment income Investment Income, Net Investment Type [Axis] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] AVAILABLE-FOR-SALE SECURITIES: AVAILABLE-FOR-SALE SECURITIES: Total current liabilities Liabilities, Current CURRENT LIABILITIES: Liabilities, Current [Abstract] Total liabilities Liabilities LONG-TERM LIABILITIES: Liabilities, Noncurrent [Abstract] Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Liabilities: Liabilities, Fair Value Disclosure [Abstract] Total liabilities and stockholders' equity Liabilities and Equity Long-term Purchase Commitment [Table] Commitments Long-term Purchase Commitment [Line Items] Category of Item Purchased [Axis] Long-term Purchase Commitment, Category of Item Purchased [Domain] Minimum amount of expenditure in exploration and development activity to be paid during the first year if the agreement is terminated Long-term Purchase Commitment, Amount Equipment Machinery and Equipment, Gross Maximum [Member] Maximum Minimum [Member] Minimum Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS Net Cash Provided by (Used in) Continuing Operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash provided by (used in) investing activities Net Income (Loss) Available to Common Stockholders, Basic NET LOSS Net loss Net Loss Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] CASH FLOWS FROM INVESTING ACTIVITIES: Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING ACTIVITIES: Noncash Investing and Financing Items [Abstract] Nonoperating Income (Expense) Total other income (loss) OTHER INCOME: Nonoperating Income (Expense) [Abstract] OPERATING EXPENSES: Operating Expenses [Abstract] Operating Expenses Total operating expenses Operating Income (Loss) LOSS FROM OPERATIONS ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Total other assets Other Assets, Noncurrent Other Assets, Noncurrent [Abstract] OTHER ASSETS: Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Adjustment to net unrealized gains (losses) on marketable securities Parties to Contractual Arrangement [Domain] Parties to Contractual Arrangement [Axis] Purchase of property and equipment Payments to Acquire Property, Plant, and Equipment Proceeds (purchase) of certificates of deposit Payments to Acquire Restricted Certificates of Deposit Plan Name [Domain] Plan Name [Axis] Preferred shares - no par value, 10,000,000 shares authorized; -0- shares issued and outstanding Preferred Stock, Value, Issued Preferred shares, shares authorized Preferred Stock, Shares Authorized Authorized preferred shares Preferred Shares: Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred shares, shares issued Preferred Stock, Shares Issued Preferred shares, shares outstanding Preferred Stock, Shares Outstanding Prepaid expenses and deposits Prepaid Expense and Other Assets, Current Gross proceeds on exercise of warrants Proceeds from Warrant Exercises Proceeds from Issuance of Common Stock Net proceeds from sale of common stock Net proceeds Proceeds from disposition of property and equipment Proceeds from Sale of Property, Plant, and Equipment Proceeds from the sale of investment in marketable equity securities Proceeds from Sale of Available-for-sale Securities, Equity Professional Fees Legal, accounting, and consulting PROPERTY AND EQUIPMENT: Property, Plant and Equipment, Net [Abstract] Total property and equipment, net Property, Plant and Equipment, Net Total property and equipment, gross Property, Plant and Equipment, Gross Range [Axis] Range [Domain] Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated Deficit Retained Earnings [Member] REVENUE: Revenues [Abstract] CONCENTRATION OF CREDIT RISK: CONCENTRATION OF CREDIT RISK: Royalty Revenue Royalties Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Exercisable at the end of the period Expected life Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Exercisable at the end of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding at the end of the period Scenario, Unspecified [Domain] Schedule of financial assets and liabilities accounted for at fair value on a nonrecurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Summary of stock option activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of assumptions used to estimate the fair value of stock options Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of the Company's available-for-sale securities Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Stock by Class [Table] Reclamation deposits Security Deposit Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Disclosures for share-based compensation cost Share-based Compensation Stock-based compensation Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Weighted-Average Exercise Price Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Issued (in shares) Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stock options Issue price (in dollars per share) Share Price Issued (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised (in dollars per share) Forfeited or expired (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Weighted average risk-free interest rate (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable at the end of the period (in dollars per share) Expected dividend yield (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Weighted average volatility (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Weighted-average grant-date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Granted (in dollars per share) Intrinsic value of awards exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Additional disclosure for stock options Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercisable at the end of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Number of Options Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares authorized for grant under the plans Assumptions used to estimate the fair value of stock options Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Forfeited or expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding at the beginning of the period (in dollars per share) Outstanding at the end of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Outstanding at the end of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding at the beginning of the period (in shares) Outstanding at the end of the period (in shares) Stock compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] BALANCES (in shares) BALANCES (in shares) Shares, Issued Statement [Table] Scenario [Axis] Statement Statement [Line Items] CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Equity Components [Axis] CONDENSED CONSOLIDATED BALANCE SHEETS CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS Class of Stock [Axis] Stock Issued During Period, Shares, Period Increase (Decrease) Exercise of stock options and warrants Stock Issued During Period, Value, Stock Options Exercised Common stock issued for cash Stock Issued During Period, Value, New Issues Issuance of stock for Heidelberg shares (in shares) Stock Issued During Period, Shares, Other Stock-based compensation (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Stock-based compensation Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Total offering of shares of common stock Stock Issued During Period, Shares, New Issues Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised (in shares) Issuance of stock for Heidelberg shares Stock Issued During Period, Value, Other Stockholders' Equity Attributable to Parent [Abstract] STOCKHOLDERS' EQUITY: Total stockholders' equity BALANCES BALANCES Stockholders' Equity Attributable to Parent STOCKHOLDERS' EQUITY: STOCKHOLDERS' EQUITY: STOCKHOLDERS' EQUITY: Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity, Period Increase (Decrease) SUBSEQUENT EVENTS: Subsequent Events [Text Block] SUBSEQUENT EVENTS: Subsequent events Subsequent Events, Policy [Policy Text Block] Summary of Investment Holdings [Table] CERTIFICATES OF DEPOSIT Summary of Investment Holdings [Line Items] Supplemental Cash Flow Information [Abstract] SUPPLEMENTAL INFORMATION: Warrant Derivatives Warrant [Member] Common share purchase warrant Weighted average Weighted Average [Member] Weighted Average Number of Shares Outstanding, Basic WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (basic) Weighted Average Number of Shares Outstanding, Diluted WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (diluted) WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (basic and diluted) Weighted Average Number of Shares Outstanding, Basic and Diluted