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Business Combinations - Summary of Unaudited Pro Forma Combined Results of Operations (Details) - IDV Solutions LLC - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 8 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2017
Sep. 30, 2016
Business Acquisition [Line Items]          
Revenue $ 1,882 $ 2,595 $ 4,900 $ 5,437 $ 7,713
Net income (loss) $ (691) $ (48) $ (2,274) $ (2,419) $ (1,189)
Basic and diluted earnings per share pro forma $ (0.02) $ 0.00   $ (0.09) $ (0.09)