Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 6 months ended Jun. 30, 2018 - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Dec. 31, 2017	12,142
Balance at Dec. 31, 2017	$ 121	$ 68,667	$ 65,460	$ (67,760)	$ 66,488
Issuance of treasury stock		(2,988)		2,988
Stock-based compensation		168			168
Restricted stock award grant (in shares)
Restricted stock award grant
Forfeited restricted stock (in shares)	(125)
Forfeited restricted stock	$ (1)	1
Net share settlement related to restricted stock vesting (in shares)	(2)
Net share settlement related to restricted stock vesting		(110)			(110)
Net income (loss)			3,579		3,579
Balance (in shares) at Jun. 30, 2018	12,015
Balance at Jun. 30, 2018	$ 120	$ 65,738	$ 69,039	$ (64,772)	$ 70,125