Note 13 - Stock Based Compensation - Summary of Restricted Stock (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Outstanding (in shares)	34,721	416,666
Outstanding, weighted average grant date fair value (in dollars per share)	$ 7.20	$ 0.60
Vested (in shares)	(34,721)	0
Granted (in shares)		0
Effect of reserve stock split (in shares)	0	(381,945)
Vested, weighted average grant date fair value (in dollars per share)	$ (7.20)
Outstanding (in shares)	0	34,721
Outstanding, weighted average grant date fair value (in dollars per share)	$ 0	$ 7.20