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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 5 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2017
Jun. 30, 2016
Business Acquisition [Line Items]          
Revenue $ 1,670 $ 3,328 $ 3,018 $ 3,555 $ 5,118
Net income (loss) $ (948) $ 75 $ (1,583) $ (2,337) $ (1,140)
Basic and diluted earnings per share pro forma $ (0.03) $ 0.01   $ (0.08) $ (0.09)