Use of Estimates, Policy [Policy Text Block]

Use of Estimates

The preparation of Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting years. Significant estimates and assumptions reflected in these consolidated financial statements include, but are not limited to, the fair value of the Series A preferred shares, warrants, 3i Exchange Warrants, convertible debt, and the accrual for research and development expenses, share based compensation expense, and income tax uncertainties and valuation allowances. The Company bases its estimates on historical experience, known trends and other market-specific or other relevant factors that it believes to be reasonable under the circumstances. Estimates are periodically reviewed considering reasonable changes in circumstances, facts, and experience. Changes in estimates are recorded in the period in which they become known and if material, their effects are disclosed in the notes to the consolidated financial statements. Actual results could differ from those estimates or assumptions.

Foreign Currency Transactions and Translations Policy [Policy Text Block]

Foreign currency and currency translation

The functional currency is the currency of the primary economic environment in which an entity’s operations are conducted. The Company and its subsidiaries operate mainly in Denmark and the United States. The functional currencies of the Company’s subsidiaries are their local currency.

The Company’s reporting currency is the U.S. dollar. The Company translates the assets and liabilities of its Denmark subsidiaries into the U.S. dollar at the exchange rate in effect on the balance sheet date. Revenues and expenses are translated at the average exchange rate in effect during each monthly period. Unrealized translation gains and losses are recorded as a cumulative translation adjustment, which is included in the condensed consolidated statements of changes in stockholders’ equity (deficit) as a component of accumulated other comprehensive loss.

Monetary assets and liabilities denominated in currencies other than the functional currency are remeasured into the functional currency at rates of exchange prevailing at the balance sheet dates. Non-monetary assets and liabilities denominated in foreign currencies are re-measured into the functional currency at the exchange rates prevailing at the date of the transaction. Exchange gains or losses arising from foreign currency transactions are included in the determination of net loss for the respective periods.

Adjustments that arise from exchange rate translations are included in other comprehensive loss in the consolidated statements of operations and comprehensive loss as incurred. During the three months ended September 30, 2025 and 2024, the Company recorded foreign exchange gains (losses) of ($0.2) million and $0.2 million, respectively. During the nine months ended September 30, 2025 and 2024, the Company recorded foreign exchange gains (losses) of ($2.1) million and $0.3 million, respectively.

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and cash equivalents

The Company maintains deposits primarily in financial institutions, which may at times exceed amounts covered by insurance provided by the U.S. Federal Deposit Insurance Corporation (“FDIC”). The Company has not experienced any losses related to amounts in excess of FDIC limits. The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. The Company had no cash equivalents on September 30, 2025 and December 31, 2024.

Comprehensive Income, Policy [Policy Text Block]

Accumulated other comprehensive loss

Accumulated other comprehensive loss includes net loss as well as other changes in stockholders’ equity (deficit) that result from transactions and economic events other than those with shareholders. The Company records unrealized gains and losses related to foreign currency translation and instrument specific credit risk as components of other accumulated comprehensive loss in the condensed consolidated statements of operations and comprehensive loss. During the three and nine months ended September 30, 2025 and 2024, the Company’s other comprehensive (loss) and gain was comprised of currency translation adjustments.