Balance sheet components (Tables)

3 Months Ended

Mar. 31, 2026

Balance Sheet Components [Abstract]

Schedule of prepaid expenses [Table Text Block]

		March 31, 2026		December 31, 2025
Insurance	$	218,810	$	345,084
Contract research organizations		390,000		410,000
Professional services		298,525		300,033
Prepaid services		9,621		31,004
	$	916,956	$	1,086,121

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

		March 31, 2026		December 31, 2025
Accrued legal fees	$	291,476	$	352,864
Accrued compensation and benefits		248,910		300,181
Accrued other		498,346		342,245
	$	1,038,731	$	995,290