Note 13 - Stock Based Compensation - Summary of Nonvested Restricted Stock (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Non-vested (in shares) | shares	122,070
Nonvested - weighted average grant date fair value (in dollars per share) | $ / shares	$ 18.06
Granted (in shares) | shares	7,608
Granted - weighted average grant date fair value (in dollars per share) | $ / shares	$ 30.40
Canceled/forfeited/expired (in shares) | shares	(714)
Canceled/forfeited/expired - weighted average grant date fair value (in dollars per share) | $ / shares	$ 28.23
Vested (in shares) | shares	(9,358)
Vested - weighted average grant date fair value (in dollars per share) | $ / shares	$ 21.71
Non-vested (in shares) | shares	119,606
Nonvested - weighted average grant date fair value (in dollars per share) | $ / shares	$ 18.5