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Note 13 - Shares Outstanding and Earnings Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Weighted average basic shares outstanding (in shares)	11,663	11,570
Assumed exercise of stock options and issuance of stock awards (in shares)	0	1
Weighted average diluted shares outstanding (in shares)	11,663	11,571
Net income	$ 8,697	$ 9,872
Basic earnings per share (in dollars per share)	$ 0.75	$ 0.85
Diluted earnings per share (in dollars per share)	$ 0.75	$ 0.85
Unvested RSs and RSUs (in shares)	174	226

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