CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2020		48,988,142
Beginning balance at Dec. 31, 2020	$ 175,427	$ 6	$ (11,434)	$ 144,163	$ 1	$ 42,691
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	3,318			3,318
Exercise of stock options (in shares)		278,412
Exercise of stock options	451			451
Repurchase of treasury stock, at cost (in shares)		(693)
Repurchase of treasury stock, at cost	(27)		(27)
Other comprehensive loss	(1)				(1)
Net income	4,918					4,918
Ending balance (in shares) at Mar. 31, 2021		49,265,861
Ending balance at Mar. 31, 2021	184,086	$ 6	(11,461)	147,932	0	47,609
Beginning balance (in shares) at Dec. 31, 2021		51,854,749
Beginning balance at Dec. 31, 2021	257,180	$ 6	(11,486)	169,401	(36)	99,295
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 5,469			5,469
Exercise of stock options (in shares)	130,958	130,958
Exercise of stock options	$ 481			481
Issuance of common stock related to RSU vesting (in shares)		25,033
Other comprehensive loss	(203)				(203)
Net income	4,779					4,779
Ending balance (in shares) at Mar. 31, 2022		52,010,740
Ending balance at Mar. 31, 2022	$ 267,706	$ 6	$ (11,486)	$ 175,351	$ (239)	$ 104,074