Note 11 - Stock-based Compensation Plan - Unvested Stock Activity (Details) - Restricted Stock [Member]	9 Months Ended
	Sep. 30, 2024 $ / shares shares
Unvested shares outstanding, number of shares (in shares) | shares	189,784
Unvested shares outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 11.51
Granted, number of shares (in shares) | shares	138,838
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 11.38
Vested, number of shares (in shares) | shares	(94,666)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 9.72
Forfeited, number of shares (in shares) | shares	(16,174)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 12.35
Unvested shares outstanding, number of shares (in shares) | shares	217,782
Unvested shares outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 12.14