Note 11 - Stock-based Compensation - Restricted Stock Activity (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2025 $ / shares shares
Nonvested (in shares) | shares	1,310,989
Nonvested, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 3.43
Granted (in shares) | shares	1,618,653
Granted, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 1.43
Vested (in shares) | shares	(1,249,194)
Vested, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 2.8
Forfeited (in shares) | shares	(342,348)
Forfeited, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 2.63
Nonvested (in shares) | shares	1,338,100
Nonvested, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 1.8