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Maximum [Member] Note 10 - Shareholders' Equity - Shares Reserved (Details) Note 11 - Net Loss Per Share - Net Loss Per Common Share (Details) Note 11 - Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Computation of Net Loss Per Share (Details) Note 12 - Share-based Compensation - Share-based Compensation Expense (Details) us-gaap_IncreaseDecreaseInAccountsReceivable Amounts receivable Note 12 - Share-based Compensation - Stock Option Activity (Details) Note 12 - Share-based Compensation - Stock Options Outstanding (Details) Commercial Paper and Corporate Bonds [Member] Commercial Papers are unsecured promissory note (generally negotiable) that provides institutions with short-term funds that is excluded from cash and cash equivalents and commercial bonds are debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment. 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The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities, Total Cash flows from financing activities: Stock Options Outstanding [Member] Related to stock options outstanding. 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Fair Value Hierarchy and NAV [Axis] Balance, aggregate intrinsic value Common Stock, Shares, Issued (in shares) Common Stock, Shares, Outstanding (in shares) Award Type [Domain] Stock Option Prior Plan [Member] Information related to the company's stock option plan known as the Prior Plan. Weighted average shares outstanding—basic and diluted (in shares) Weighted average shares outstanding – basic and diluted (in shares) Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Basic and diluted net loss per share (in dollars per share) Schedule of Accrued Liabilities [Table Text Block] Antidilutive Security, Excluded EPS Calculation [Table] Accrued Interest Receivable On Available For Sale Securities [Member] Represents information related to accrued interest receivable on available for sale securities. Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Common shares, no par value; unlimited authorized; 53,883,345 and 53,742,370 shares issued and outstanding, as of March 31, 2026 and December 31, 2025, respectively Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Accounts payable us-gaap_PolicyTextBlockAbstract Accounting Policies us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements us-gaap_TableTextBlock Notes Tables Computer Equipment [Member] Document Fiscal Period Focus Document Fiscal Year Focus us-gaap_ComprehensiveIncomeNetOfTax Comprehensive loss us-gaap_FinanceLeaseLiabilityNoncurrent Finance lease obligation, non-current Amendment Flag Finance lease obligation Common Stock [Member] us-gaap_InvestmentIncomeNetAmortizationOfDiscountAndPremium Amortization of discounts on marketable securities Professional services fees Accrued liabilities Total accrued liabilities dei_DocumentPeriodEndDate Document Period End Date Property, Plant, and Equipment [Text Block] Total operating expenses, excluding share-based compensation dmac_OperatingExpensesExcludingSharebasedCompensation Generally recurring costs associated with normal operations, excluding share-based compensation Long-Lived Asset, Class [Domain] us-gaap_VariableLeaseCost Variable Lease, Cost Granted, options (in shares) Legal Entity [Axis] Compensation Significant Accounting Policies [Text Block] us-gaap_OperatingLeaseCost Operating Lease, Cost Maturities and sales of marketable securities us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount Less interest portion dei_EntityFileNumber Entity File Number Operating lease obligation, non-current Operating lease obligation Present value of lease obligation Operating lease obligation Less current portion of operating lease Entity [Domain] Entity Central Index Key dei_EntityRegistrantName Entity Registrant Name dei_EntityCurrentReportingStatus Entity Current Reporting Status Entity Incorporation, State or Country Code Current Fiscal Year End Date Fair Value Measurement, Policy [Policy Text Block] Research and development Entity Filer Category dei_EntityShellCompany Entity Shell Company Entity Emerging Growth Company Entity Small Business us-gaap_OperatingIncomeLoss Operating loss Common Stock, Shares Authorized, Unlimited [Fixed List] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Other comprehensive income The 2021 Employment Inducement Incentive Plan [Member] Represents the company's 2021 Employment Inducement Incentive Plan. 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Earnings Per Share [Text Block] Unrealized gain (loss) on marketable securities Unrealized gain on marketable securities us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit (in dollars per share) Property and equipment, net Property and equipment, net Property, plant and equipment, gross Scenario [Axis] Scenario [Domain] Sale of Stock [Axis] Property, Plant, and Equipment [Table] Outstanding, weighted average exercise price (in dollars per share) Furniture and Fixtures [Member] us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation Share-based compensation expense Other income, net us-gaap_OtherNonoperatingExpense Other expense, net Exercise Price Range 6 [Member] Represents Exercise Price Range 6. 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Risks and Uncertainties [Text Block] A complete disclosure of the risks and uncertainties the company may face. Restricted Stock Units (RSUs) [Member]