Note 13 - Earnings Per Share - Basic and Diluted Income Per Common Share (Details) - shares shares in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Basic (in shares)		7,354	7,313	7,350	7,310
Dilutive stock options(1) (2) (in shares)	[1]	0	76	0	90
Diluted - weighted average shares outstanding(1) (2) (in shares)	[2]	7,354	7,389	7,350	7,400
Anti-dilutive securities (in shares)		283	104	283	299

[1] Due to a loss for the three months ended June 30, 2023, zero dilutive stock options are included for the period because the effect would be antidilutive.

[2] Due to a loss for the six months ended June 30, 2023, zero dilutive stock options are included for the period because the effect would be antidilutive.