CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Revenue, net	$ 18,294	$ 11,340	$ 49,088	$ 45,435
Costs and expenses:
Cost of revenues	11,575	8,802	32,365	23,926
Selling, general and administrative expenses	4,845	5,971	15,932	14,976
Product development and research expenses	3,087	4,606	10,445	13,387
Total costs and expenses	19,507	19,379	58,742	52,289
Operating loss	(1,213)	(8,039)	(9,654)	(6,854)
Other Income (Expense):
Foreign currency exchange (loss) gain	(176)	1,744	(2,071)	6,645
Partial extinguishment of Convertible 3.75% Senior Notes	0	0	(2,467)	0
Interest and other expense, net	(2,693)	(2,663)	(7,764)	(8,731)
Income tax (benefit) expense	(137)	24	(90)	130
Loss before income tax expense	(4,082)	(8,958)	(21,956)	(8,940)
Net loss	$ (3,945)	$ (8,982)	$ (21,866)	$ (9,070)
Basic and diluted loss per share (in dollars per share)	$ (0.07)	$ (0.17)	$ (0.41)	$ (0.17)
Weighted average shares of common stock outstanding:
Basic and diluted shares (in shares)	53,625,768	53,391,948	53,532,277	53,297,889