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 [Member]	Total
Balance (in shares) at Dec. 31, 2019	10,413,982
Balance at Dec. 31, 2019	$ 104	$ 26,256	$ 18,005	$ 673	$ (204)	$ 44,834
Net earnings (loss)			(1,143)			(1,143)
Other comprehensive earnings (loss)				(38)		(38)
Amortization of deferred compensation related to stock-based awards		187				187
Issuance of unvested shares of restricted stock (in shares)	58,160
Issuance of unvested shares of restricted stock	$ 1	1
Issuance of unvested shares of restricted stock	$ (1)	(1)
Forfeiture of unvested shares of restricted stock (in shares)	(8,315)
Repurchase and retirement of common stock (in shares)	(13,767)
Repurchase and retirement of common stock		(74)				(74)
Balance (in shares) at Mar. 31, 2020	10,450,060
Balance at Mar. 31, 2020	$ 105	26,368	16,862	635	(204)	$ 43,766
Balance (in shares) at Dec. 31, 2020	10,562,200					10,562,200
Balance at Dec. 31, 2020	$ 106	26,851	17,110	889	(204)	$ 44,752
Net earnings (loss)			2,212			2,212
Other comprehensive earnings (loss)				(101)		(101)
Amortization of deferred compensation related to stock-based awards		269				269
Issuance of unvested shares of restricted stock (in shares)	81,468
Issuance of unvested shares of restricted stock	$ 1	1
Issuance of unvested shares of restricted stock	$ (1)	(1)
Stock options exercised (in shares)	99,740					99,740
Stock options exercised	$ 1	716				$ 717
Balance (in shares) at Mar. 31, 2021	10,743,408					10,743,408
Balance at Mar. 31, 2021	$ 108	$ 27,835	$ 19,322	$ 788	$ (204)	$ 47,849