Condensed Consolidated Statements of Changes in Stockholders’ (Deficit) Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Beginning balance, shares at Dec. 31, 2018		21,899,522
Beginning balance at Dec. 31, 2018	$ 28,908	$ 22	$ 249,115	$ 2,501	$ (222,730)
Exercise of common stock options, shares		2,181
Exercise of common stock options	4		4
Issuance of restricted stock units, shares		8,577
Stock based compensation	346		346
Foreign currency translation	919			919
Net loss	(8,774)				(8,774)
Ending balance, shares at Mar. 31, 2019		21,922,344
Ending balance at Mar. 31, 2019	25,542	$ 22	249,441	1,613	(225,534)
Beginning balance, shares at Dec. 31, 2018		21,899,522
Beginning balance at Dec. 31, 2018	28,908	$ 22	249,115	2,501	(222,730)
Exercise of common stock options, shares		3,754
Exercise of common stock options	7		7
Issuance of restricted stock units, shares		29,826
Stock based compensation	669		669
Foreign currency translation	31			31
Net loss	(11,578)				(11,578)
Ending balance, shares at Jun. 30, 2019		21,933,102
Ending balance at Jun. 30, 2019	18,037	$ 22	249,791	2,532	(234,308)
Beginning balance, shares at Mar. 31, 2019		21,922,344
Beginning balance at Mar. 31, 2019	25,542	$ 22	249,441	1,613	(225,534)
Foreign currency translation	919
Net loss	(8,774)
Ending balance, shares at Jun. 30, 2019		21,933,102
Ending balance at Jun. 30, 2019	$ 18,037	$ 22	249,791	2,532	(234,308)
Beginning balance, shares at Dec. 31, 2019	20,951,963	20,951,963
Beginning balance at Dec. 31, 2019	$ 2,123	$ 21	250,634	1,630	(250,162)
Exercise of common stock options, shares		1,150
Exercise of common stock options	2		2
Issuance of restricted stock units, shares		78,477
Issuance of common stock for Convertible Debt interest, shares		164,797
Issuance of common stock for convertible debt interest	467		467
Stock based compensation	935		935
Foreign currency translation	2,403			2,403
Net loss	$ (16,509)				(16,509)
Ending balance, shares at Jun. 30, 2020	21,196,387	21,196,387
Ending balance at Jun. 30, 2020	$ (10,579)	$ 21	252,038	4,033	(266,671)
Beginning balance, shares at Mar. 31, 2020		21,128,101
Beginning balance at Mar. 31, 2020	(5,453)	$ 21	251,502	3,442	(260,418)
Exercise of common stock options, shares		1,150
Exercise of common stock options	2		2
Issuance of restricted stock units, shares		67,136
Stock based compensation	534		534
Foreign currency translation	591			591
Net loss	$ (6,253)				(6,253)
Ending balance, shares at Jun. 30, 2020	21,196,387	21,196,387
Ending balance at Jun. 30, 2020	$ (10,579)	$ 21	$ 252,038	$ 4,033	$ (266,671)