Quarterly report [Sections 13 or 15(d)]

Summary of Significant Accounting Policies and New Accounting Standards (Details)

v3.26.1
Summary of Significant Accounting Policies and New Accounting Standards (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Summary of Significant Accounting Policies and New Accounting Standards [Line Items]          
Defined contribution $ 26,000 $ 23,000 $ 52,000 $ 44,000  
Cash and cash equivalents 45,700,000   45,700,000   $ 55,200,000
Federal depository insurance coverage 250,000   250,000    
Foreign currency translation 30,000 0 9,000 0  
Other income (expense)   7,000   7,000  
Grant income 3,685,618 2,148,676 6,627,938 3,878,527  
Unrecognized tax benefits    
Accrued for interest and penalties    
Deferred tax assets 0   0   $ 0
Comprehensive income (loss)  
Grant Agreement [Member]          
Summary of Significant Accounting Policies and New Accounting Standards [Line Items]          
Grant income $ 0 $ 43,000 $ 0 $ 43,000  
Minimum [Member]          
Summary of Significant Accounting Policies and New Accounting Standards [Line Items]          
Estimated useful lives 3 years   3 years    
Maximum [Member]          
Summary of Significant Accounting Policies and New Accounting Standards [Line Items]          
Estimated useful lives 10 years   10 years