Earnings Per Share - Basic and diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator:
Net earnings	$ 8,063	$ 9,337	$ 20,320	$ 21,646
Denominator:
Basic weighted average shares outstanding (in shares)	9,439	9,451	9,435	9,458
Effect of dilutive securities:
Employee share-based awards (in shares)	160	79	141	81
Diluted weighted average shares outstanding (in shares)	9,599	9,530	9,576	9,539
Basic earnings per share (in dollars per share)	$ 0.85	$ 0.99	$ 2.15	$ 2.29
Diluted earnings per share (in dollars per share)	$ 0.84	$ 0.98	$ 2.12	$ 2.27