Unaudited Condensed Consolidated Statement of Stockholders' Deficit - USD ($) $ in Thousands	Total	Common Stock $0.001 par value	Common Stock	Additional Paid-In Capital	Accmulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning Balance at Dec. 31, 2017	$ (7,490)		$ 52,230	$ 6,602	$ 47	$ (66,369)
Beginning Balance, Shares at Dec. 31, 2017			20,178,226
Stock-based compensation expense	380			380
Proceeds from the exercise of stock options and warrants	3,753		$ 3,753
Proceeds from the exercise of stock options and warrants, Shares			619,083
Reclassification of liability-classified warrants upon exercise	3,246		$ 3,246
Net income (loss)	(1,165)					(1,165)
Foreign currency translation adjustments	(953)				(953)
Ending Balance at Mar. 31, 2018	(2,229)		$ 59,229	6,982	(906)	(67,534)
Ending Balance, Shares at Mar. 31, 2018			20,797,309
Beginning Balance at Dec. 31, 2018	9,854	$ 26		105,411	(591)	(94,992)
Beginning Balance, Shares at Dec. 31, 2018		25,827,860
Stock-based compensation expense	835			835
Proceeds from the exercise of warrants	92			92
Proceeds from the exercise of warrants, Shares		16,320
Reclassification of derivative financial instruments from the exercise of warrants	25			25
Net income (loss)	1,324					1,324
Foreign currency translation adjustments	(112)				(112)
Ending Balance at Mar. 31, 2019	$ 12,018	$ 26		$ 106,363	$ (703)	$ (93,668)
Ending Balance, Shares at Mar. 31, 2019		25,844,180