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, 2019	10,413,982
Balance at Dec. 31, 2019	$ 104	$ 26,256	$ 18,005	$ 673	$ (204)	$ 44,834
Net earnings (loss)	0	0	(895)	0	0	(895)
Other comprehensive earnings (loss)	0	0	0	216	0	216
Amortization of deferred compensation related to stock-based awards	$ 0	671	0	0	0	671
Issuance of unvested shares of restricted stock (in shares)	229,110
Issuance of unvested shares of restricted stock	$ 2	(2)	0	0	0	0
Forfeiture of unvested shares of restricted stock (in shares)	(67,125)
Forfeiture of unvested shares of restricted stock	$ 0		0	0	0	0
Forfeiture of unvested shares of restricted stock		0
Repurchase and retirement of common stock (in shares)	(13,767)
Repurchase and retirement of common stock	$ 0	(74)	0	0	0	$ (74)
Stock options exercised (in shares)						(0)
Balance (in shares) at Dec. 31, 2020	10,562,200
Balance at Dec. 31, 2020	$ 106	26,851	17,110	889	(204)	$ 44,752
Net earnings (loss)	0	0	7,283	0	0	7,283
Other comprehensive earnings (loss)	0	0	0	(295)	0	(295)
Amortization of deferred compensation related to stock-based awards	$ 0	1,450	0	0	0	1,450
Issuance of unvested shares of restricted stock (in shares)	131,209
Issuance of unvested shares of restricted stock	$ 1	(1)	0	0	0	0
Forfeiture of unvested shares of restricted stock (in shares)	(18,125)
Forfeiture of unvested shares of restricted stock	$ 0		0	0	0	$ 0
Forfeiture of unvested shares of restricted stock		0
Stock options exercised (in shares)	231,185					231,185
Stock options exercised	$ 2	1,581	0	0	0	$ 1,583
Shares issued under Employee Stock Purchase Plan (in shares)	3,991
Shares issued under Employee Stock Purchase Plan	$ 0	50	0	0	0	50
Balance (in shares) at Dec. 31, 2021	10,910,460
Balance at Dec. 31, 2021	$ 109	$ 29,931	$ 24,393	$ 594	$ (204)	$ 54,823