Note 9 - Shareholders' Equity - Restricted Stock Activity (Details) - Restricted Stock [Member]	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Non-vested restricted stock (in shares) | shares	855,236
Non-vested restricted stock, weighted average grant date fair value (in dollars per share) | $ / shares	$ 2.63
Granted (in shares) | shares	1,299,000
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.96
Vested (in shares) | shares	(411,041)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 2.78
Forfeited (in shares) | shares	(5,500)
Forfeited (in dollars per share) | $ / shares	$ 2.3
Non-vested restricted stock (in shares) | shares	1,737,695
Non-vested restricted stock, weighted average grant date fair value (in dollars per share) | $ / shares	$ 1.35