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Consolidated Statements of Operations - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Revenue $ 1,447 $ 90
Cost of revenue 985 50
Gross profit 462 40
Operating expenses:    
Research and development 4,988 1,426
Selling, general and administrative 7,464 4,276
Total operating expenses 12,452 5,702
Loss from operations (11,990) (5,662)
Interest expense (415) (567)
Other income (expense), net (21) 49
Comprehensive and net loss $ (12,426) $ (6,180)
Net loss per share:    
Basic and diluted (in dollars per share) $ (0.31) $ (1.27)
Weighted average shares used in computing net loss per common share    
Basic and diluted (in shares) 40,181,427 4,865,546