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)	160
Stock-based compensation		132			132
Components of comprehensive (loss) income:
Net income (loss)			(3,055)		(3,055)
Currency translation adjustment				31	31
Ending balance at Mar. 31, 2019	$ 11	(112,091)	(39,059)	$ (1,329)	(152,468)
Ending balance (in shares) at Mar. 31, 2019	11,160,537
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		35			$ 35
Components of comprehensive (loss) income:
Net income (loss)			2,417		2,417
Ending balance at Mar. 31, 2020	$ 11	$ (111,953)	$ (38,041)		$ (149,983)
Ending balance (in shares) at Mar. 31, 2020	11,229,819				11,229,819