CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues:
Revenue, net	$ 14,339	$ 18,466	$ 35,372	$ 49,929
Costs and expenses:
Cost of revenues	14,225	11,186	33,919	28,346
Selling, general and administrative expenses	6,543	5,007	18,249	15,707
Impairment charges	0	0	8,373	0
Product development and research expenses	2,370	2,064	6,050	7,721
Total costs and expenses	23,138	18,257	66,591	51,774
Operating income/(loss)	(8,799)	209	(31,219)	(1,845)
Other Expense:
Foreign currency exchange gain/(loss)	1,856	(2,167)	2,384	(2,458)
Debt partial extinguishment of 2019 Notes	0	0	0	(185)
Interest and other expense, net	(8,056)	(5,160)	(21,452)	(15,262)
Gain on debt restructuring	10,882	0	10,882	0
Inducement loss	(701)	0	(701)	0
Change in the fair value of derivative liabilities	4,326	0	(1,523)	0
Loss before income tax expense/(benefit)	(492)	(7,118)	(41,629)	(19,750)
Income tax expense/(benefit)	18	(5)	49	76
Net loss attributable to common shareholders	$ (510)	$ (7,113)	$ (41,678)	$ (19,826)
Earnings Per Share [Abstract]
Basic and diluted loss per share (in dollars per share)	$ (0.08)	$ (1.32)	$ (7.32)	$ (3.68)
Weighted average shares of common stock outstanding:
Weighted average shares of common stock outstanding, Basic and diluted (in shares)	6,082,517	5,385,041	5,690,164	5,383,531