Note 11 - Capital Stock - Summary of Warrant Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Outstanding (in shares)	53,562	105,556
Outstanding, weighted average exercise price (in dollars per share)	$ 9.95	$ 9.95
Outstanding, weighted average remaining contractual life (Year)	0 years	6 months	1 year 6 months
Outstanding, aggregate intrinsic value of vested warrants	$ 0	$ 226,567	$ 610,114
Issued (in shares)	0	0
Exercised (in shares)	(52,778)	0
Redeemed (in shares)	0	(51,994)
Expired (in shares)	(784)	0
Outstanding (in shares)	0	53,562	105,556
Outstanding, weighted average exercise price (in dollars per share)	$ 0	$ 9.95	$ 9.95