Cover [Abstract] Entity Registrant Name Entity Central Index Key Document Type Amendment Flag Current Fiscal Year End Date Entity Small Business Entity Shell Company Entity Emerging Growth Company Entity Current Reporting Status Document Period End Date Entity Filer Category Document Fiscal Period Focus Document Fiscal Year Focus Entity Common Stock Shares Outstanding Document Quarterly Report Document Transition Report Entity File Number Entity Incorporation State Country Code Entity Tax Identification Number Entity Address Address Line 1 Entity Address Address Line 2 Entity Address City Or Town Entity Address State Or Province Entity Address Postal Zip Code City Area Code Local Phone Number Security 12b Title Trading Symbol Security Exchange Name Entity Interactive Data Current CONDENSED CONSOLIDATED BALANCE SHEETS ASSETS Current assets Cash and cash equivalents Marketable securities Prepaid expenses Total current assets [Assets, Current] Right of use asset Property and equipment, net Other assets Total assets [Assets] LIABILITIES AND STOCKHOLDERS EQUITY Current liabilities Accounts payable Accrued liabilities Note payable Total current liabilities [Liabilities, Current] Long term liabilities Lease liability Note payable [Notes Payable] Total long term liabilities [Liabilities, Noncurrent] Total liabilities [Liabilities] Stockholders' equity Preferred stock, undesignated, authorized 9,999,790 shares; See Note 9Series A Preferred stock, par value $.0001, issued 5,181,346 shares; outstanding 210, respectively Common stock, par value $.0001 per share; authorized 400,000,000 shares; issued and outstanding 25,201,312 and 12,619,369 respectively Additional paid-in capital Accumulated other comprehensive gain (loss) Accumulated deficit Total stockholders equity [Stockholders' Equity Attributable to Parent] Total liabilities and stockholders' equity [Liabilities and Equity] Statement [Table] Statement [Line Items] Statement Class Of Stock Axis Series A Preferred Stock Stockholders' equity Preferred stock, authorized Common stock, par value Common stock, authorized Common stock, issued Common stock, outstanding Preferred stock, par value Preferred stock, issued Preferred stock, outstanding CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) Operating expenses General and administrative Research and development Total operating expenses [Operating Expenses] Net operating loss Interest expense Other income, net Net loss Unrealized (gain) loss on marketable securities Total comprehensive loss Net loss per share, basic and diluted Weighted average number of common shares outstanding, basic and diluted CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY (Unaudited) Statement Equity Components [Axis] Preferred Stock Common Stock Additional Paid-In Capital Accumulated Other Comprehensive Gain (Loss) Accumulated Deficit Balance, shares [Shares, Issued] Balance, amount Common stock and pre-funded warrants sold, net of offering costs, shares Common stock and pre-funded warrants sold, net of offering costs, amount Compensation on options issued Common stock issued for services rendered, shares Common stock issued for services rendered, amount Common stock issued for convertible preferred stock, shares Common stock issued for convertible preferred stock, amount Exercise of pre-funded warrants, shares Exercise of pre-funded warrants, amount Unrealized loss on marketable securities Net loss Exercise of warrants, shares Exercise of warrants, amount Unrealized gain on marketable securities Common stock and preferred stock issued for asset acquisition, shares Common stock and preferred stock issued for asset acquisition, amount Pre-funded warrants sold, net of offering costs Balance, shares Balance, amount CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) CASH FLOWS FROM OPERATING ACTIVITIES Net Loss Adjustments to reconcile net loss to net cash used in operating activities Depreciation and amortization Interest on debt instrument Amortization of right of use asset Gain on debt settlement and extinguishment Issuance of common stock and preferred stock for asset acquisition Issuance and vesting of compensatory stock options and warrants Issuance of common stock for services rendered Amortization of premium on marketable securities Changes in operating assets and liabilities Accounts receivable, prepaid expenses and other assets Accounts payable and accrued liabilities Long term portion of lease liability Net cash used in operating activities [Net Cash Provided by (Used in) Operating Activities] CASH FLOWS FROM INVESTING ACTIVITIES Purchase of marketable securities Sale of marketable securities Purchase of property and equipment [Payments to Acquire Property, Plant, and Equipment] Net cash provided by investing activities [Net Cash Provided by (Used in) Investing Activities] CASH FLOWS FROM FINANCING ACTIVITIES Proceeds from issuance of common stock and pre-funded warrants, net of issuance costs Proceeds from the exercise of warrants Proceeds from the issuance of notes payable Net cash provided by financing activities [Net Cash Provided by (Used in) Financing Activities] Net change in cash and cash equivalents [Cash and Cash Equivalents, Period Increase (Decrease)] Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Non-cash investing activity Addition to right of use asset obtained from new operating lease liability DESCRIPTION OF BUSINESS NOTE 1. DESCRIPTION OF BUSINESS SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES NOTE 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES FAIR VALUE NOTE 3. FAIR VALUE BALANCE SHEET COMPONENTS NOTE 4. BALANCE SHEET COMPONENTS LEASE NOTE 5. LEASE NOTES PAYABLE NOTE 6. NOTE PAYABLE MERGER NOTE 7. MERGER COMMITMENTS AND CONTINGENCIES NOTE 8. COMMITMENTS AND CONTINGENCIES NOTE 9. STOCKHOLDERS' EQUITY SUBSEQUENT EVENTS NOTE 10. SUBSEQUENT EVENTS Basis of Presentation Going Concern Use of Estimates Principles of Consolidation Liquidity and Management's Plan COVID-19 Impact and Related Risks Net Loss per Share Leases Recent Accounting Pronouncements Anti-dilutive securities Investments in marketable securities Fair value on a recurring basis Property, plant and equipment Accrued liabilities Schedule of Accrued Liabilities [Table Text Block] Lease liabilities Maturities of operating lease liabilities Consideration transferred, asset acquired and liabilities assumed Warrant activity Shares available for grant under the 2016 Plan Options activity Fair value assumptions Outstanding stock options under the 1999 Plan Class Of Warrant Or Right Axis Plan Name Axis Warrant to Purchase Common Stock Pre-funded warrants to purchase common stock [Member] Simdax License Agreement [Member] Convertible preferred shares outstanding [Member] Anti-dilutive securities [Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount] Accumulated deficit Net cash used in operating activities Cash and cash equivalents Stockholder equity Private placements units sold Common stock par value Purchase price of units Gross proceeds Fair Value By Fair Value Hierarchy Level Axis Level 1 Level 2 Level 3 Current Assets Cash and cash equivalents [Cash and Cash Equivalents, Fair Value Disclosure] Marketable securities [Available-for-sale Securities] Office furniture and fixtures Computer equipment and software Property and equipment, gross Less: accumulated depreciation [Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment] Property and equipment, net Employee related Operating costs Lease liability [Operating Lease, Liability, Current] Total Depreciation expense Current portion included in accrued liabilities Long term lease liability Total [Operating Lease, Liability] 2021 2022 2023 2024 Total lease payments Less: imputed interest Operating lease liability Remaining lease term Discount rate Lease expense Amount of common area maintenance charges Area of lease land Lease term period Description of lease contract Annual base rent increased Percentage of annual increase in rent PPP loan amount Accrued interest PPP loan - principal payable Fair value of shares of Common Stock issued Fair Value of Series B Convertible Preferred Stock issued at closing Total fair value of consideration transferred Tangible assets acquired Accounts payable assumed [Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable] Total identifiable net assets Total fair value of consideration IPR&D expense recognized Auction Market Preferred Securities Stock Series Axis Series B [Member] Conversion of stock Common stock acquired Stock issued for conversion Percentage of Preferred Stock carries voting rights Convertible preferred stock License Term period License agreement maturity date Non refundable up front payment Grant paid to authority Grant paid to canadian authority Non-refundable commercialization milestone payment Number of warrants outstanding, beginning [Number of warrants outstanding, beginning] Number of warrants, issued Number of warrants, exercised Number of warrants outstanding, ending Weighted average exercise price outstanding, beginning [Class of Warrant or Right, Exercise Price of Warrants or Rights] Weighted average exercise price, issued Weighted average exercise price, exercised Weighted average exercise price outstanding, ending 2016 Stock Incentive Plan Shares available for grant, beginning [Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant] Shares available for grant, additional shares reserved Shares available for grant, options granted Shares available for grant, options cancelled/forfeited [Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period] Shares available for grant, ending Number of options outstanding, beginning [Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number] Shares available for grant, options granted Shares available for grant, options cancelled/forfeited [Shares available for grant, options cancelled/forfeited] Number of options outstanding, ending Weighted average exercise price outstanding, beginning [Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price] Weighted average exercise price granted Weighted average exercise price cancelled/forfeited Weighted average exercise price outstanding, ending Risk-free interest rate (weighted average) Expected volatility (weighted average) Expected term (in years) Expected dividend yield 1999 Amended Stock Plan Number of options cancelled Weighted average exercise price cancelled Award Date Axis July 2021 Warrants July 2021 Offering Warrants [Member] December 2018 Offering July 2020 Offering March 2020 Offerings First Inducement Stock Options Second Inducement Stock Options March 2020 Warrants [Member] July 2020 Warrants Series B Preferred Stock Inducement Stock Options Warrant to purchase of common stock exercise price Warrant to purchase of common stock Warrants outstanding Common stock, par value [Common stock, par value] Common stock, authorized Common stock, issued [Common stock, issued] Common stock, outstanding Purchase price per unit Warrant to purchase of unregistered common stock Warrant to purchase of unregistered common stock, value Estimated fair value Number of units issued Net proceeds from the offerings, after deducting placement agent fees and other direct offering expenses Fair value allocated pre-funded warrants Fair value allocated common stock Stock issued during period, value Stock issued during period, shares Fair value allocated warrants Stock options description Stock option award granted Stock options exercise term Stock options exercise price Risk-free interest rate Dividend yield Vvolatility factor rate Expected life Estimated fair value of the inducement stock option award granted Unregistered common stock warrants to purchase common stock [Unregistered common stock warrants to purchase common stock] Unregistered warrants exercise price Fair value of warrants Warrant to purchase of common stock term [Warrant to purchase of common stock term] Estimated fair value of warrant issued for services Issued underwriter warrant to purchase common stock Underwriter warrant to purchase common stock exercise price Unregistered common stock warrants to purchase common stock Net proceeds from underwritten offering Underwritten offering of stock Warrant to purchase of common stock term Preferred stock, par value Preferred stock, outstanding Preferred stock, issued Stock convertible into an aggregate shares of common stock Preferred stock voting rights Compensation expense Number of shares previously authorized for issuance Number of shares of common stock authorized for issuance Unrecognized compensation costs Unvested shares underlying outstanding stock awards Outstanding stock awards General and administrative compensation expense Stock options granted fair market value percentage Stock options granted, vesting period Weighted average remaining vesting period Subsequent Event Type Axis Related Party Transactions By Related Party Axis Separation Agreement [Member] Subsequent Event [Member] Mr Jebsen [Member] Annual bonus Eligibility Advisory service The total amount of proceeds received for the sale of securities, categorized neither as held-to-maturity nor trading securities, during the reporting period. Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease. Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Term of the lessor's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer. Decrease for amounts of indebtedness forgiven by the holder of the debt instrument. Date the pending litigation matter was dismissed, in CCYY-MM-DD format. Number of non-option equity instruments exercised by participants. The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Exercise price per share or per unit of warrants or rights outstanding. Unregistered common stock warrants to purchase common stock. Unregistered warrants exercise price. Net proceeds from the offerings, after deducting placement agent fees and other direct offering expenses. Face amount or stated value per share of common stock. Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and Stock options granted, vesting period Warrant to purchase of common stock term. Estimated fair valueof warrant issued for services. Issued underwriter warrant to purchase common stock. Underwriter warrant to purchase common stock exercise price. Stock options description. Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts. The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Number of warrants or rights outstanding.