Document And Entity Information [Abstract] Document Information [Table] Class of Stock [Axis] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Trading Symbol Entity Common Stock, Shares Outstanding Statement of Financial Position [Abstract] Statement [Table] Class of Stock [Domain] Statement [Line Items] Assets, Current [Abstract] Current Assets Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents Cash and Cash Equivalents, Beginning of Period Cash and Cash Equivalents, End of Period Checking and savings accounts (reported as cash and cash equivalents) Money Market Funds, at Carrying Value Money market funds Available-for-sale Securities, Current, Total Short-term investments available for sale Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current, Total Total Current Assets Property, Plant and Equipment, Net, Total Property and equipment, net of accumulated depreciation and amortization of $1,372 and $1,103, respectively Property and equipment, net Assets, Total Total Assets Liabilities, Current [Abstract] Current Liabilities Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued expenses Accounts Payable, Related Parties, Current Accrued payable to officers and former directors Liabilities, Current, Total Total Current Liabilities Commitments and Contingencies Commitments and contingencies Preferred Stock, Value, Issued Preferred stock, $0.001 par value; 50,000,000 shares authorized, 1,694 shares issued and outstanding Common Stock, Value, Issued Common stock, $0.000041666 par value; 150,000,000 shares authorized, 48,516,528 and 48,547,720 shares issued and outstanding, respectively Common Stock To Be Issued Value Common stock to be issued, 303,125 shares Value of common stock to be issued as of balance sheet date. Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated other comprehensive income Additional Paid in Capital, Total Additional paid-in capital Retained Earnings (Accumulated Deficit), Total Accumulated deficit Stockholders' Equity Attributable to Parent, Total Total Stockholders’ Equity Beginning Balance Ending Balance Liabilities and Equity, Total Total Liabilities and Stockholders’ Equity Income Statement [Abstract] Revenues, Total Revenues Revenue Research and Development Expense, Total Research and development (including $585 and $387 in share-based compensation costs) General and Administrative Expense, Total General and administrative (including $1,194 and $1,080 in share-based compensation costs) Operating Expenses [Abstract] Costs and expenses Operating Income (Loss), Total Loss from operations Interest Income (Expense), Net, Total Interest income Nonoperating Income (Expense) [Abstract] Other income Statement of Comprehensive Income [Abstract] Net Income (Loss) Attributable to Parent, Total Net Loss Net loss Net Loss Net loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income: Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized gain on short-term investments Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total Comprehensive Loss Stockholders' Equity Attributable to Parent [Abstract] Stockholders’ Equity Equity Components [Axis] Statement of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash Flows From Operating Activities Adjustments 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: Depreciation, Depletion and Amortization, Nonproduction, Total Depreciation and amortization Stock or Unit Option Plan Expense Fair value of vested stock options Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Prepaid Expense and Other Assets, Total Prepaid expenses and other current assets Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Accounts payable and accrued expenses Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total Net Cash Used In Operating Activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash Flows From Investing Activities Payments to Acquire Short-term Investments Purchase of money market funds Payments to Acquire Available-for-sale Securities, Total Purchase of short-term investments Proceeds from Sale and Maturity of Available-for-sale Securities, Total Maturities of short-term investments Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash Flows From Financing Activities Proceeds from Warrant Exercises Proceeds from the issuance of common stock upon exercise of warrants Proceeds from Issuance of Common Stock Proceeds from the issuance of common stock, net Cash and Cash Equivalents, Period Increase (Decrease), Total Net (decrease) increase in cash and cash equivalents Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental Disclosures of Cash Flow Information: Other Significant Noncash Transaction, Value of Consideration Received Unrealized gain on short-term investments Equity Component [Domain] Preferred Stock [Member] Common Stock [Member] Common Stock To Be Issued [Member] Common Stock to be Issued [Member] Additional Paid-in Capital [Member] AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income [Member] Retained Earnings [Member] Accumulated Deficit [Member] Shares, Outstanding, Beginning Balance Beginning Balance (in Shares) Ending Balance (in Shares) Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: Accumulated depreciation and amortization Preferred Stock, Par or Stated Value Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Common Stock To Be Issued Shares Number of shares of common stock to be issued. Income Statement Location [Axis] Share-based Compensation, Total Share Based Compensation Income Statement Location [Domain] Research and Development Expense [Member] Research and Development Expense [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Business Description and Basis of Presentation [Text Block] GENERAL ORGANIZATION AND BUSINESS Cash, Cash Equivalents, and Short-term Investments, Total Total Working Capital Represents the value of working capital which is the difference between current assets and current liabilities. Accounting Policies [Abstract] Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING PRACTICES Marketable Securities, Policy [Policy Text Block] Short-term Investments Earnings Per Share, Policy [Policy Text Block] Loss per Share Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurements Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value on a Recurring Basis Use of Estimates, Policy [Policy Text Block] Use of Estimates Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Stock-Based Compensation Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentrations Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Assets Measured at Fair Value Measurement Frequency [Axis] Assets, Fair Value Disclosure, Total Assets, fair value Fair Value, Hierarchy [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Cash and Cash Equivalents [Axis] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Major Types of Debt and Equity Securities [Axis] Cash and Cash Equivalents [Domain] Major Types of Debt and Equity Securities [Domain] Corporate Debt Securities [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost, Total Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost, Total Derivative Instrument [Axis] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities [Axis] Derivative Contract [Domain] Award Type [Axis] Antidilutive Securities, Name [Domain] Convertible Preferred Stock [Member] Customer [Axis] Equity Award [Domain] Concentration Risk Benchmark [Axis] Customer [Domain] Range [Axis] Concentration Risk Benchmark [Domain] Reclassification Of Stock Based Compensation Cost The amount of stock-based compensation cost that was reclassified during the period. Property, Plant and Equipment, Type [Axis] Range [Domain] Cash, Cash Equivalents, and Short-term Investments [Abstract] Cash, Cash Equivalents, and Short-term Investments [Text Block] CASH, MONEY MARKET FUNDS, AND SHORT-TERM INVESTMENTS Cash, Cash Equivalents and Investments [Table Text Block] Schedule of Cash, Money Market Funds and Short-Term Investments Unrealized Gain (Loss) on Investments [Table Text Block] Schedule of Unrealized Gains and Losses Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of Contractual Maturities Available-for-sale Securities, Total Corporate debt securities (reported as short-term investments) Corporate debt securities Trading Securities, Cost Amortized Cost Money Market Funds [Member] Trading Securities, Unrealized Holding Gain Gross Unrealized Gains Trading Securities, Unrealized Holding Loss Gross Unrealized Losses Investment Owned, at Fair Value Fair Value Loss Contingency [Abstract] Contingencies Disclosure [Text Block] LEGAL PROCEEDINGS Cash Equivalents, at Carrying Value Total Subsequent Event Type [Axis] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] LICENSES AND COMMITMENTS Recorded Unconditional Purchase Obligations [Table Text Block] Schedule of Recorded Unconditional Purchase Obligations Other Commitments [Table] License And Commitments [Table] Lease Arrangement, Type [Axis] License Costs Concentration Risk, Percentage Five Companies [Member] Various Other Domestic Issuers [Member] Foreign Issuer [Member] Stockholders' Equity Note [Abstract] Stockholders' Equity Note Disclosure [Text Block] STOCKHOLDERS’ EQUITY Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Schedule of Restricted Stock Activity Schedule of Stock by Class [Table] Class of Stock [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Beginning Balance Non-vested shares, Beginning Balance Non-vested shares, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance Weighted Average Grant Date Fair Value, Beginning Balance Weighted Average Grant Date Fair Value, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited Creditor [Axis] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] STOCK OPTIONS AND WARRANTS Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Status of Stock Options Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Shares Under Option Shares Under Warrants Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning Balance Outstanding, beginning balance Outstanding, ending balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Granted Issued Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Common stock issued upon exercise of options (in shares) Exercised Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Total Expired/Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Beginning Balance Outstanding, beginning balance Outstanding, ending balance Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Granted Issued Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised Exercised