Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning Balances at Dec. 31, 2022	$ 62,076	$ 2	$ 26,046	$ (147)	$ 36,175
Beginning Balances, Shares at Dec. 31, 2022		18,198,737
Other comprehensive income -- unrealized gain on available-for-sale debt securities	32			32
Issuance of common stock upon exercise of stock options	29		29
Issuance of common stock upon exercise of stock options, shares		24,600
Issuance of common stock upon vesting of restricted stock units, Shares		32,425
Shares repurchased for tax withholdings on vesting of restricted stock units	(35)		(35)
Shares repurchased for tax withholdings on vesting of restricted stock units, Shares		(4,636)
Stock-based compensation	362		362
Cash dividend adjustments	(4)				(4)
Net Income (Loss)	3,376				3,376
Ending Balances at Mar. 31, 2023	65,836	$ 2	26,402	(115)	39,547
Ending Balances, Shares at Mar. 31, 2023		18,251,126
Beginning Balances at Dec. 31, 2023	72,295	$ 2	27,477	18	44,798
Beginning Balances, Shares at Dec. 31, 2023		18,395,682
Other comprehensive income -- unrealized gain on available-for-sale debt securities	4			4
Issuance of common stock upon exercise of stock options	57		57
Issuance of common stock upon exercise of stock options, shares		13,000
Issuance of common stock upon vesting of restricted stock units, Shares		27,575
Shares repurchased for tax withholdings on vesting of restricted stock units	(39)		(39)
Shares repurchased for tax withholdings on vesting of restricted stock units, Shares		(3,807)
Stock-based compensation	399		399
Cash dividend adjustments	(5)				(5)
Net Income (Loss)	4,380				4,380
Ending Balances at Mar. 31, 2024	$ 77,091	$ 2	$ 27,894	$ 22	$ 49,173
Ending Balances, Shares at Mar. 31, 2024		18,432,450