CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands		Total	Common Stock		Common stock and additional paid-in capital		Treasury Stock		Accumulated other comprehensive (loss) income	Retained Earnings
Beginning Balance (in shares) at Dec. 31, 2018	[1]		3,190		3,613
Beginning Balance (in shares) at Dec. 31, 2018	[1]						(423)
Beginning Balance at Dec. 31, 2018		$ 40,487			$ 485,131		$ (8,486)		$ (606)	$ (435,552)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(2,802)								(2,802)
Other comprehensive income (loss)									(41)
Treasury Stock, Shares, Acquired	[1]						(273)
Treasury Stock, Value, Acquired, Cost Method							$ (4,212)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	[1]						(2)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation							$ (40)
Stock-based compensation (in shares)	[1]				45
Stock-based compensation					$ 609
Ending Balance (in shares) at Jun. 30, 2019	[1]		2,960		3,658
Ending Balance (in shares) at Jun. 30, 2019	[1]						(698)
Ending Balance at Jun. 30, 2019		34,001			$ 485,740		$ (12,738)		(647)	(438,354)
Beginning Balance (in shares) at Mar. 31, 2019			2,939		3,622
Beginning Balance (in shares) at Mar. 31, 2019							(683)
Beginning Balance at Mar. 31, 2019		34,816			$ 485,315		$ (12,504)		(541)	(437,454)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(900)								(900)
Other comprehensive income (loss)									(106)
Treasury Stock, Shares, Acquired							(15)
Treasury Stock, Value, Acquired, Cost Method							$ (230)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation							0
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation							$ (4)
Stock-based compensation (in shares)					36
Stock-based compensation					$ 425
Ending Balance (in shares) at Jun. 30, 2019	[1]		2,960		3,658
Ending Balance (in shares) at Jun. 30, 2019	[1]						(698)
Ending Balance at Jun. 30, 2019		$ 34,001			$ 485,740		$ (12,738)		(647)	(438,354)
Beginning Balance (in shares) at Dec. 31, 2019		2,937	2,936	[1]	3,663	[1]
Beginning Balance (in shares) at Dec. 31, 2019		726					(726)	[1]
Beginning Balance at Dec. 31, 2019		$ 36,034			$ 486,092		$ (13,072)		(479)	(436,507)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		$ (1,283)								(1,283)
Other comprehensive income (loss)									(343)
Treasury Stock, Shares, Acquired	[1]						(260)
Treasury Stock, Value, Acquired, Cost Method							$ (2,239)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	[1]						(1)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation							$ (14)
Stock-based compensation (in shares)	[1]				9
Stock-based compensation					$ 237
Ending Balance (in shares) at Jun. 30, 2020		2,685	2,685	[1]	3,672	[1]
Ending Balance (in shares) at Jun. 30, 2020		987					(987)	[1]
Ending Balance at Jun. 30, 2020		$ 32,392			$ 486,329		$ (15,325)		(822)	(437,790)
Beginning Balance (in shares) at Mar. 31, 2020			2,682		3,669
Beginning Balance (in shares) at Mar. 31, 2020							(987)
Beginning Balance at Mar. 31, 2020		32,630			$ 486,236		$ (15,322)		(1,266)	(437,018)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		$ (772)								(772)
Other comprehensive income (loss)									444
Treasury Stock, Shares, Acquired							0
Treasury Stock, Value, Acquired, Cost Method							$ 0
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation							0
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation							$ (3)
Stock-based compensation (in shares)					3
Stock-based compensation					$ 93
Ending Balance (in shares) at Jun. 30, 2020		2,685	2,685	[1]	3,672	[1]
Ending Balance (in shares) at Jun. 30, 2020		987					(987)	[1]
Ending Balance at Jun. 30, 2020		$ 32,392			$ 486,329		$ (15,325)		$ (822)	$ (437,790)

[1] Common stock and Treasury stock for all periods presented reflect the Company's 1-for-10 reverse stock split, which was effective June 10, 2019.