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, 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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(36,063)				(36,063)
Issuance/redemption of equity grants, net (in shares)		157
Issuance/redemption of equity grants, net	41	$ 1		40
Interest rate cash flow hedge	(269)					(269)
Stock based compensation	573			573
Balance (in shares) at Dec. 31, 2019		6,908	232
Balance at Dec. 31, 2019	$ (36,916)	$ 69	$ (2,500)	$ 24,026	$ (59,079)	$ 568