Consolidated Statements of Stockholders' Equity - 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, 2017	10,427,435
Balance at Dec. 31, 2017	$ 104	$ 25,860	$ 12,646	$ 882	$ (204)	$ 39,288
Net earnings			3,037			3,037
Other comprehensive loss				(99)		(99)
Amortization of deferred compensation related to stock-based awards		654				654
Issuance of unvested shares of restricted stock (in shares)	95,600
Issuance of unvested shares of restricted stock	$ 1	(1)
Balance (in shares) at Dec. 31, 2018	10,523,035					10,523,035
Balance at Dec. 31, 2018	$ 105	26,513	15,683	783	(204)	$ 42,880
Net earnings			2,322			2,322
Other comprehensive loss				(110)		(110)
Amortization of deferred compensation related to stock-based awards		884				884
Issuance of unvested shares of restricted stock (in shares)	132,580
Issuance of unvested shares of restricted stock	$ 1	(1)
Forfeiture of unvested shares of restricted stock (in shares)	(12,325)
Repurchase and retirement of common stock (in shares)	(229,308)					(229,308)
Repurchase and retirement of common stock	$ (2)	(1,140)				$ (1,142)
Balance (in shares) at Dec. 31, 2019	10,413,982					10,413,982
Balance at Dec. 31, 2019	$ 104	$ 26,256	$ 18,005	$ 673	$ (204)	$ 44,834