Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance (in shares) at Dec. 31, 2015		6,513	232
Balance at Dec. 31, 2015	$ 13,267	$ 65	$ (2,500)	$ 21,142	$ (5,053)	$ (387)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,811)				(1,811)
Common stock dividends declared	(1,366)			46	(1,412)
Issuance/redemption of equity grants, net (in shares)		79
Issuance/redemption of equity grants, net	(105)	$ 1		(106)
Interest rate cash flow hedge	582					582
Tax impact of equity grant exercises	65			65
Stock based compensation	788			788
Balance (in shares) at Dec. 31, 2016		6,592	232
Balance at Dec. 31, 2016	11,420	$ 66	$ (2,500)	21,935	(8,276)	195
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(4,827)				(4,827)
Common stock dividends declared	(1,384)			47	(1,431)
Issuance/redemption of equity grants, net (in shares)		95
Issuance/redemption of equity grants, net	(94)	$ 1		(95)
Interest rate cash flow hedge	514					514
Stock based compensation	833			833
Balance (in shares) at Dec. 31, 2017		6,687	232
Balance at Dec. 31, 2017	6,462	$ 67	$ (2,500)	22,720	(14,534)	709
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(7,396)				(7,396)
Common stock dividends declared	(1,055)			31	(1,086)
Issuance/redemption of equity grants, net (in shares)		64
Issuance/redemption of equity grants, net	(217)	$ 1		(218)
Interest rate cash flow hedge	128					128
Stock based compensation	880			880
Balance (in shares) at Dec. 31, 2018		6,751	232
Balance at Dec. 31, 2018	$ (1,198)	$ 68	$ (2,500)	$ 23,413	$ (23,016)	$ 837