CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock and Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2021		46,534,198			12,143,433
Beginning balance at Dec. 31, 2021	$ 141,295	$ 323,296	$ 412	$ (100,680)	$ (81,733)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	3,257			3,257
Unrealized gain (loss) on available-for-sale securities, net of taxes	(813)		(813)
Stock repurchases (in shares)					1,220,546
Stock repurchases					$ (5,977)
Release of restricted stock units and awards, net of shares withheld (in shares)		293,069			14,549
Release of restricted stock units and awards, net of shares withheld	(80)				$ (80)
Issuance of stock for ESPP purchase (in shares)		7,725
Issuance of stock for ESPP purchase	34	$ 34
Shares issued to an employee in lieu of cash compensation (in shares)		16,517
Shares issued to an employee in lieu of cash compensation	84	$ 84
Shares issued in connection with public offering, net of issuance costs	5	5
Stock-based compensation	1,932	$ 1,932
Ending balance (in shares) at Jun. 30, 2022		46,851,509			13,378,528
Ending balance at Jun. 30, 2022	139,737	$ 325,351	(401)	(97,423)	$ (87,790)
Beginning balance (in shares) at Mar. 31, 2022		46,658,734			13,082,214
Beginning balance at Mar. 31, 2022	143,350	$ 324,476	653	(95,604)	$ (86,175)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,819)			(1,819)
Unrealized gain (loss) on available-for-sale securities, net of taxes	(1,054)		(1,054)
Stock repurchases (in shares)					281,765
Stock repurchases					$ (1,535)
Release of restricted stock units and awards, net of shares withheld (in shares)		176,258			14,549
Release of restricted stock units and awards, net of shares withheld	(80)				$ (80)
Shares issued to an employee in lieu of cash compensation (in shares)		16,517
Shares issued to an employee in lieu of cash compensation	84	$ 84
Stock-based compensation	791	$ 791
Ending balance (in shares) at Jun. 30, 2022		46,851,509			13,378,528
Ending balance at Jun. 30, 2022	139,737	$ 325,351	(401)	(97,423)	$ (87,790)
Beginning balance (in shares) at Dec. 31, 2022		46,974,598			14,727,582
Beginning balance at Dec. 31, 2022	157,700	$ 322,714	202	(70,016)	$ (95,200)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	15,306			15,306
Unrealized gain (loss) on available-for-sale securities, net of taxes	673		673
Stock repurchases (in shares)					413,696
Stock repurchases					$ (2,852)
Release of restricted stock units and awards, net of shares withheld (in shares)		456,469			119,174
Release of restricted stock units and awards, net of shares withheld	(947)				$ (947)
Proceeds from stock options exercises (in shares)		21,222
Proceeds from stock options exercises	160	$ 160
Issuance of stock for ESPP purchase (in shares)		1,298
Issuance of stock for ESPP purchase	6	$ 6
Shares issued to an employee in lieu of cash compensation (in shares)		65,477
Shares issued to an employee in lieu of cash compensation	490	$ 490
Dividend declared	(2,207)	(2,207)
Stock-based compensation	1,707	$ 1,707
Ending balance (in shares) at Jun. 30, 2023		47,519,064			15,260,452
Ending balance at Jun. 30, 2023	170,036	$ 322,870	875	(54,710)	$ (98,999)
Beginning balance (in shares) at Mar. 31, 2023		47,428,494			14,825,518
Beginning balance at Mar. 31, 2023	165,729	$ 322,847	577	(61,738)	$ (95,957)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	7,028			7,028
Unrealized gain (loss) on available-for-sale securities, net of taxes	298		298
Stock repurchases (in shares)					413,696
Stock repurchases					$ (2,852)
Release of restricted stock units and awards, net of shares withheld (in shares)		54,514			21,238
Release of restricted stock units and awards, net of shares withheld	(190)				$ (190)
Proceeds from stock options exercises (in shares)		21,222
Proceeds from stock options exercises	160	$ 160
Shares issued to an employee in lieu of cash compensation (in shares)		14,834
Shares issued to an employee in lieu of cash compensation	106	$ 106
Dividend declared	(1,003)	(1,003)
Stock-based compensation	760	$ 760
Ending balance (in shares) at Jun. 30, 2023		47,519,064			15,260,452
Ending balance at Jun. 30, 2023	$ 170,036	$ 322,870	$ 875	$ (54,710)	$ (98,999)