Balance sheet components (Tables)

12 Months Ended

Dec. 31, 2025

Balance Sheet Components [Abstract]

Schedule of prepaid expenses [Table Text Block]

		Year ended December 31,
		2025		2024
Insurance	$	345,084	$	583,561
Contract research organizations		410,000		455,810
Professional services		300,033		144,643
Prepaid services		31,004		29,970
	$	1,086,121	$	1,213,984

Schedule of accrued expenses and other current liabilities [Table Text Block]

		Year ended December 31,
		2025		2024
Accrued legal fees	$	352,864	$	495,016
Accrued compensation and benefits		300,181		140,989
Accrued other		342,245		126,830
	$	995,290	$	762,835