Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2022	11,063,271
Balance at Dec. 31, 2022	$ 111	$ 31,987	$ 32,854	$ 218	$ (214)	$ 64,956
Net earnings	0	0	2,817	0	0	2,817
Other comprehensive loss	0	0	0	71	0	71
Amortization of deferred compensation related to stock-based awards	$ 0	474	0	0	0	474
Issuance of unvested shares of restricted stock (in shares)	90,588
Issuance of unvested shares of restricted stock	$ 1	(1)	0	0	0	0
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited (in shares)	(13,271)
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures	$ 0	0	0	0	0	0
Stock options exercised (in shares)	25,200
Stock options exercised	$ 0	165	0	0	0	165
Shares issued under Employee Stock Purchase Plan (in shares)	2,292
Shares issued under Employee Stock Purchase Plan	$ 0	48	0	0	0	48
Shares surrendered to satisfy tax liability at vesting of stock-based awards	$ 0	0	0	0	(33)	(33)
Balance (in shares) at Mar. 31, 2023	11,168,080
Balance at Mar. 31, 2023	$ 112	32,673	35,671	289	(247)	68,498
Balance (in shares) at Dec. 31, 2023	12,241,925
Balance at Dec. 31, 2023	$ 122	54,450	42,196	414	(901)	96,281
Net earnings	0	0	662	0	0	662
Other comprehensive loss	0	0	0	(103)	0	(103)
Amortization of deferred compensation related to stock-based awards	$ 0	349	0	0	0	349
Issuance of shares in connection with acquisition of Alfamation (in shares)	187,432
Issuance of shares in connection with acquisition of Alfamation	$ 2	2,084	0	0	0	2,086
Issuance of unvested shares of restricted stock (in shares)	138,838
Issuance of unvested shares of restricted stock	$ 1	(1)	0	0	0	0
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited (in shares)	(11,200)
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures	$ 0	0	0	0	0	$ 0
Stock options exercised (in shares)	4,925					4,925
Stock options exercised	$ 0	18	0	0	0	$ 18
Shares issued under Employee Stock Purchase Plan (in shares)	4,104
Shares issued under Employee Stock Purchase Plan	$ 0	54	0	0	0	54
Shares surrendered to satisfy tax liability at vesting of stock-based awards	$ 0	0	0	0	(30)	(30)
Balance (in shares) at Mar. 31, 2024	12,566,024
Balance at Mar. 31, 2024	$ 125	$ 56,954	$ 42,858	$ 311	$ (931)	$ 99,317