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, 2018	10,523,035
Balance at Dec. 31, 2018	$ 105	$ 26,513	$ 15,683	$ 783	$ (204)	$ 42,880
Net earnings (loss)			1,138			1,138
Other comprehensive earnings (loss)				(83)		(83)
Amortization of deferred compensation related to stock-based awards		183				183
Issuance of unvested shares of restricted stock (in shares)	80,300
Issuance of unvested shares of restricted stock	$ 1
Issuance of unvested shares of restricted stock		(1)
Balance (in shares) at Mar. 31, 2019	10,603,335
Balance at Mar. 31, 2019	$ 106	26,695	16,821	700	(204)	44,118
Balance (in shares) at Dec. 31, 2018	10,523,035
Balance at Dec. 31, 2018	$ 105	26,513	15,683	783	(204)	42,880
Net earnings (loss)						1,598
Balance (in shares) at Sep. 30, 2019	10,604,132
Balance at Sep. 30, 2019	$ 106	26,971	17,281	615	(204)	44,769
Balance (in shares) at Mar. 31, 2019	10,603,335
Balance at Mar. 31, 2019	$ 106	26,695	16,821	700	(204)	44,118
Net earnings (loss)			(187)			(187)
Other comprehensive earnings (loss)				59		59
Amortization of deferred compensation related to stock-based awards		213				213
Issuance of unvested shares of restricted stock (in shares)	35,380
Issuance of unvested shares of restricted stock
Forfeiture of unvested shares of restricted stock (in shares)	(12,325)
Balance (in shares) at Jun. 30, 2019	10,626,390
Balance at Jun. 30, 2019	$ 106	26,908	16,634	759	(204)	44,203
Net earnings (loss)			647			647
Other comprehensive earnings (loss)				(144)		(144)
Amortization of deferred compensation related to stock-based awards		242				242
Issuance of unvested shares of restricted stock (in shares)	16,900
Issuance of unvested shares of restricted stock
Repurchase and retirement of common stock (in shares)	(39,158)
Repurchase and retirement of common stock		(179)				(179)
Balance (in shares) at Sep. 30, 2019	10,604,132
Balance at Sep. 30, 2019	$ 106	26,971	17,281	615	(204)	$ 44,769
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
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
Issuance of unvested shares of restricted stock		(1)
Forfeiture of unvested shares of restricted stock (in shares)	(8,315)
Repurchase and retirement of common stock (in shares)	(13,767)					(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, 2019	10,413,982					10,413,982
Balance at Dec. 31, 2019	$ 104	26,256	18,005	673	(204)	$ 44,834
Net earnings (loss)						$ (515)
Balance (in shares) at Sep. 30, 2020	10,562,200					10,562,200
Balance at Sep. 30, 2020	$ 106	26,660	17,490	771	(204)	$ 44,823
Balance (in shares) at Mar. 31, 2020	10,450,060
Balance at Mar. 31, 2020	$ 105	26,368	16,862	635	(204)	43,766
Net earnings (loss)			170			170
Other comprehensive earnings (loss)				35		35
Amortization of deferred compensation related to stock-based awards		208				208
Issuance of unvested shares of restricted stock (in shares)	15,840
Issuance of unvested shares of restricted stock
Forfeiture of unvested shares of restricted stock (in shares)	(6,750)
Balance (in shares) at Jun. 30, 2020	10,459,150
Balance at Jun. 30, 2020	$ 105	26,576	17,032	670	(204)	44,179
Net earnings (loss)			458			458
Other comprehensive earnings (loss)				101		101
Amortization of deferred compensation related to stock-based awards		85				85
Issuance of unvested shares of restricted stock (in shares)	155,110
Issuance of unvested shares of restricted stock	$ 2	(2)
Forfeiture of unvested shares of restricted stock (in shares)	(52,060)
Forfeiture of unvested shares of restricted stock	$ (1)
Forfeiture of unvested shares of restricted stock		1
Balance (in shares) at Sep. 30, 2020	10,562,200					10,562,200
Balance at Sep. 30, 2020	$ 106	$ 26,660	$ 17,490	$ 771	$ (204)	$ 44,823