Consolidated Statements of Stockholder's Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2020	$ 39,765	$ 53	$ 45,477	$ (5,185)	$ (580)
Balance (in shares) at Dec. 31, 2020		5,272,204
Net income (loss)	14,638			14,638
Exercise of stock options	178		178
Exercise of stock options (in shares)		33,050
Repurchase of shares exercised	$ (251)		(251)
Repurchase of shares exercised, (in shares)	0	(22,999)
Stock-based compensation	$ 413		413
Stock-based compensation (in shares)		26,718
Balance at Dec. 31, 2021	$ 54,743	$ 53	45,817	9,453	(580)
Balance (in shares) at Dec. 31, 2021	5,308,973	5,308,973
Net income (loss)	$ (2,992)			(2,992)
MtronPTI Spin-off	(13,790)			(13,790)
Exercise of stock options	$ 191		191
Exercise of stock options (in shares)	15,000	15,000
Repurchase of shares exercised	$ (50)		(50)
Repurchase of shares exercised, (in shares)	0	(4,786)
Stock-based compensation	$ 388		388
Stock-based compensation (in shares)		30,000
Balance at Dec. 31, 2022	$ 38,490	$ 53	$ 46,346	$ (7,329)	$ (580)
Balance (in shares) at Dec. 31, 2022	5,352,937	5,349,187