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Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Income Statement [Abstract]    
Revenue $ 370 $ 444
Cost of goods sold (111) (133)
Gross profit 259 311
Operating expenses:    
Selling, general and administrative 2,377 3,040
Research and development 1,344 979
Total operating expenses 3,721 4,019
Operating loss (3,462) (3,708)
Change in fair value of the warrant liability, net 1,672 209
Other income (expense) (23) 11
Net loss (1,813) (3,488)
Other comprehensive income (loss):    
Foreign currency translation adjustments 8 (14)
Comprehensive loss $ (1,805) $ (3,502)
Common share data:    
Basic and diluted loss per common share $ (0.08) $ (0.32)
Weighted average number of basic and diluted common shares outstanding 23,288,697 10,857,142