Earnings Per Share - Basic and diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net earnings	$ 6,650	$ 7,445
Denominator:
Basic weighted average shares outstanding (in shares)	9,436	9,483
Effect of dilutive securities:
Employee share-based awards (in shares)	144	62
Diluted weighted average shares outstanding (in shares)	9,580	9,545
Basic earnings per share (in dollars per share)	$ 0.70	$ 0.79
Diluted earnings per share (in dollars per share)	$ 0.69	$ 0.78