Balance sheet components (Tables)

9 Months Ended

Sep. 30, 2026

Balance Sheet Components [Abstract]

Schedule of prepaid expenses [Table Text Block]

		September 30, 2026		December 31, 2025
Insurance	$	-	$	345,084
Contract research organizations		390,000		410,000
Professional services		312,275		300,033
VAT receivable		625,992		-
Prepaid services		24,342		31,004
	$	1,352,609	$	1,086,121

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

		September 30, 2026		December 31, 2025
Accrued legal fees	$	264,891	$	352,864
Accrued compensation and benefits		216,002		300,181
Accrued other		567,932		342,245
	$	1,048,825	$	995,290