Condensed Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock
Balance (in shares) at Dec. 31, 2017		12,142,000
Balance at Dec. 31, 2017	$ 66,488	$ 121	$ 68,667	$ 65,460	$ (67,760)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of treasury stock			(2,094)		2,094
Stock-based compensation	(136)		(136)
Forfeited restricted stock (in shares)		(49,000)
Net share settlement related to restricted stock vesting (in shares)		(2,000)
Net share settlement related to restricted stock vesting	(40)		(40)
Net income	1,035			1,035
Balance (in shares) at Mar. 31, 2018		12,091,000
Balance at Mar. 31, 2018	67,347	$ 121	66,397	66,495	(65,666)
Balance (in shares) at Dec. 31, 2018		12,012,000
Balance at Dec. 31, 2018	81,273	$ 120	66,433	78,467	(63,747)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of treasury stock			(4,558)		4,558
Stock-based compensation	589		589
Net share settlement related to restricted stock vesting (in shares)		(5,000)
Net share settlement related to restricted stock vesting	(72)		(72)
Net income	1,501			1,501
Balance (in shares) at Mar. 31, 2019		12,007,000
Balance at Mar. 31, 2019	$ 83,291	$ 120	$ 62,392	$ 79,968	$ (59,189)