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Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]    
Prepaid insurance $ 30 $ 100
Prepaid expenses 189 533
Prepaid income taxes   888
Other receivables 46 3
IPO costs 1,018  
Total prepaid expenses and other current assets $ 1,283 $ 1,524