Net Income Per Share - Computation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Basic and diluted:
Net income	$ 17,809	$ 17,663
Denominator:
Weighted-average shares outstanding used in computing basic net income per share	18,316,464	18,108,369
Effect of potentially dilutive securities:
Stock options and restricted stock units	340,756	428,947
Weighted-average shares outstanding used in computing diluted net income per share	18,657,220	18,537,316
Net income per share:
Basic	$ 0.97	$ 0.98
Diluted	$ 0.95	$ 0.95