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, 2016	10,394,018
Balance at Dec. 31, 2016	$ 104	$ 25,578	$ 11,671	$ 639	$ (204)	$ 37,788
Net earnings			975			975
Other comprehensive earnings (loss)				243		243
Amortization of deferred compensation related to stock-based awards		344				344
Issuance of unvested shares of restricted stock (in shares)	66,000
Issuance of unvested shares of restricted stock
Forfeiture of unvested shares of restricted stock (in shares)	(18,700)
Forfeiture of unvested shares of restricted stock
Repurchase and retirement of common stock (in shares)	(13,883)					(13,883)
Repurchase and retirement of common stock		(62)				$ (62)
Balance (in shares) at Dec. 31, 2017	10,427,435					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 earnings (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)
Repurchase and retirement of common stock (in shares)						0
Repurchase and retirement of common stock						$ (62)
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