Note 10 - Stockholders' Equity - Schedule of Warrants (Details) - Stock Warrants [Member]	6 Months Ended
	Jun. 30, 2025 $ / shares shares
Outstanding, shares (in shares) | shares	2,750,429
Outstanding, average exercise price (in dollars per share) | $ / shares	$ 8.92
Issued, shares (in shares) | shares	25,434
Issued, average exercise price (in dollars per share) | $ / shares	$ 1.88
Expired (in shares) | shares	(401,449)
Expired, average exercise price (in dollars per share) | $ / shares	$ 29.24
Exercised, shares (in shares) | shares	(1,434,002)
Exercised, average exercise price (in dollars per share) | $ / shares	$ 1.07
Outstanding, shares (in shares) | shares	940,412
Outstanding, average exercise price (in dollars per share) | $ / shares	$ 12.14