Note 19 - Earnings Per Share - Reconciliation of Net Income and Shares Outstanding to Income and Number of Shares Used to Compute EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net income	$ 8,473	$ 16,652	$ 30,392	$ 46,746
Shares outstanding, shares (in shares)	18,995,303	19,011,672	18,995,303	19,011,672
Impact of weighting shares, shares (in shares)	0	(23,229)	(3,724)	131,060
Used in basic EPS, income	$ 8,473	$ 16,652	$ 30,392	$ 46,712
Used in basic EPS, shares (in shares)	18,995,303	18,988,443	18,991,579	19,142,732
Stock options, shares (in shares)	2,001	125,684
Restricted Stock Unit, shares (in shares)	0	16,320
Used in dilutive EPS, income	$ 8,473	$ 16,652	$ 30,392	$ 46,712
Used in dilutive EPS, shares (in shares)	18,997,304	19,130,447	19,013,838	19,415,558
Basic (in dollars per share)	$ 0.45	$ 0.88	$ 1.6	$ 2.44
Diluted (in dollars per share)	$ 0.45	$ 0.87	$ 1.6	$ 2.41
Less: Earnings allocated to participating securities, income			$ 0	$ (34)
Share-Based Payment Arrangement, Option [Member]
Stock options, shares (in shares)			17,633	249,115
Restricted Stock Units (RSUs) [Member]
Stock options, shares (in shares)			4,626	23,711