Condensed Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Common Stock	Capital deficiency	Accumulated earnings (loss)	Accumulated other comprehensive loss	Total
Beginning balance at Dec. 31, 2018	$ 11	$ (112,223)	$ (36,004)	$ (1,360)	$ (149,576)
Beginning balance (in shares) at Dec. 31, 2018	11,160,377
Shares issued under stock-based compensation plans (in shares)	63,151
Stock-based compensation		284			284
Components of comprehensive (loss) income:
Net income (loss)			(1,533)		(1,533)
Reclassification adjustment to foreign currency loss				1,329	1,329
Currency translation adjustment				31	31
Ending balance at Jun. 30, 2019	$ 11	(111,939)	(37,537)		(149,465)
Ending balance (in shares) at Jun. 30, 2019	11,223,528
Beginning balance at Mar. 31, 2019	$ 11	(112,091)	(39,059)	(1,329)	(152,468)
Beginning balance (in shares) at Mar. 31, 2019	11,160,537
Shares issued under stock-based compensation plans (in shares)	62,991
Stock-based compensation		152			152
Components of comprehensive (loss) income:
Net income (loss)			1,522		1,522
Reclassification adjustment to foreign currency loss				$ 1,329	1,329
Ending balance at Jun. 30, 2019	$ 11	(111,939)	(37,537)		(149,465)
Ending balance (in shares) at Jun. 30, 2019	11,223,528
Beginning balance at Dec. 31, 2019	$ 11	(111,988)	(40,458)		$ (152,435)
Beginning balance (in shares) at Dec. 31, 2019	11,224,191				11,224,191
Shares issued under stock-based compensation plans (in shares)	5,628
Stock-based compensation		53			$ 53
Components of comprehensive (loss) income:
Net income (loss)			2,529		2,529
Ending balance at Jun. 30, 2020	$ 11	(111,935)	(37,929)		$ (149,853)
Ending balance (in shares) at Jun. 30, 2020	11,229,819				11,229,819
Beginning balance at Mar. 31, 2020	$ 11	(111,953)	(38,041)		$ (149,983)
Beginning balance (in shares) at Mar. 31, 2020	11,229,819
Stock-based compensation		18			18
Components of comprehensive (loss) income:
Net income (loss)			112		112
Ending balance at Jun. 30, 2020	$ 11	$ (111,935)	$ (37,929)		$ (149,853)
Ending balance (in shares) at Jun. 30, 2020	11,229,819				11,229,819