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Nature of the business and basis of presentation (Details)	May 29, 2026 USD ($)	May 20, 2026 USD ($)	Aug. 08, 2025 USD ($) tranche
Investor | Underwriting Agreement
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Net proceeds from shares sold under sales agreement		$ 8,800,000
Directors and Officers | Securities Purchase Agreement
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Net proceeds from shares sold under sales agreement	$ 100,000
LSA | Secured Debt
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Aggregate principal amount of debt			$ 45,000,000.0
Drawn amount of debt			20,000,000.0
Aggregate amount of debt available to be draft if certain commercial and operational milestones are met			$ 20,000,000.0
Number of equal debt tranches | tranche			2
Additional amount of debt available to be draft at the lenders' sole discretion			$ 5,000,000.0

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