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Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands | Total | Bridge Loan [Member] | Best One Inc [Member] | Fluent Acquisition [Member] | Common Stock [Member] | Common Stock [Member] Best One Inc [Member] | Additional Paid-in Capital [Member] | Additional Paid-in Capital [Member] Bridge Loan [Member] | Additional Paid-in Capital [Member] Best One Inc [Member] | Additional Paid-in Capital [Member] Fluent Acquisition [Member] | Accumulated Other Comprehensive Loss [Member] | Accumulated Deficit [Member] | Non-controlling Interests [Member] | Non-controlling Interests [Member] Best One Inc [Member] | Institutional Investor [Member] | Institutional Investor [Member] Common Stock [Member] | Institutional Investor [Member] Additional Paid-in Capital [Member] | Certain Investors [Member] | Certain Investors [Member] Additional Paid-in Capital [Member] | Convertible Series A Preferred shares [Member] | Convertible Series B Preferred shares [Member] | Convertible Series B Preferred shares [Member] Bridge Loan [Member] | Convertible Series B Preferred shares [Member] Fluent Acquisition [Member] | Convertible Series B Preferred shares [Member] Certain Investors [Member]
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Beginning balance, shares at Sep. 22, 2014 | [1] |  |  |  |  | 1,000,001 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of shares, net of offering costs |  | $ 12,694 |  |  |  | $ 3 |  | $ 12,691 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of shares, net of offering costs, shares | [1] |  |  |  |  | 5,312,709 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,965,302 |  |  |  |
Issuance of shares as a result of acquisition, shares | [1] |  |  |  |  | 284,445 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  | 23 |  |  |  |  |  | 23 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to IDI |  | (610) |  |  |  |  |  |  |  |  |  |  | $ (610) |  |  |  |  |  |  |  |  |  |  |  |
Ending balance at Dec. 31, 2014 |  | 12,107 |  |  |  | $ 3 |  | 12,714 |  |  |  |  | (610) |  |  |  |  |  |  |  |  |  |  |  |
Ending balance, shares at Dec. 31, 2014 | [1] |  |  |  |  | 6,597,155 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,965,302 |  |  |  |
Vesting of restricted stock units |  | 0 |  |  |  | $ 0 |  | 0 |  |  |  | $ 0 | 0 | $ 0 |  |  |  |  |  |  | $ 0 | $ 0 |  |  |
Vesting of restricted stock units, shares | [1] |  |  |  |  | 382,300 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of shares, net of offering costs |  |  | $ 413 |  |  |  |  |  | $ 413 |  |  |  |  |  |  | $ 9,400 | $ 1 | $ 9,399 | $ 49,780 | $ 49,780 |  |  |  |  |
Issuance of common shares upon cashless exercise of warrants |  | 0 |  |  |  | $ 0 |  | 0 |  |  |  | 0 | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |
Issuance of shares, net of offering costs, shares | [1] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,280,410 |  |  |  |  |  | 1,000 |  | 149,925
Issuance of common shares upon cashless exercise of warrants, shares | [1] |  |  |  |  | 20,122 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of shares as a result of acquisition |  |  |  | $ 44,112 | $ 123,766 |  | $ 4 |  |  | $ 44,108 | $ 123,766 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion between common and preferred shares |  | 0 |  |  |  | $ 0 |  | 0 |  |  |  | 0 | 0 | 0 |  |  |  |  |  |  | $ 0 | $ 0 |  |  |
Issuance of shares as a result of acquisition, shares | [1] |  |  |  |  |  | 7,291,299 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 300,037 |
Conversion between common and preferred shares, shares | [1] |  |  |  |  | 93,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (93,500) |  |  |  |
Additions as a result of the reverse acquisition |  |  |  | $ 425 |  |  |  |  |  |  |  |  |  |  | $ 425 |  |  |  |  |  |  |  |  |  |
Issuance of common shares to vendors for services rendered |  | 433 |  |  |  |  |  | 433 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common shares to vendors for services rendered, shares | [1] |  |  |  |  | 45,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  | 34,533 |  |  |  |  |  | 34,533 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent earn out costs |  | 14,300 |  |  |  |  |  | 14,300 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to IDI |  | (84,535) |  |  |  |  |  |  |  |  |  |  | (84,535) |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to non-controlling interests |  | (508) |  |  |  |  |  |  |  |  |  |  |  | (508) |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment |  | (130) |  |  |  |  |  |  |  |  |  | (130) |  |  |  |  |  |  |  |  |  |  |  |  |
Changes as a result of the disposal of discontinued operations |  | 213 |  |  |  |  |  |  |  |  |  | $ 130 |  | $ 83 |  |  |  |  |  |  |  |  |  |  |
Issuance of warrants in relation to the term loan |  | 1,586 |  |  |  |  |  | 1,586 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending balance at Dec. 31, 2015 |  | $ 205,895 |  |  |  | $ 8 |  | $ 291,032 |  |  |  |  | $ (85,145) |  |  |  |  |  |  |  |  |  |  |  |
Ending balance, shares at Dec. 31, 2015 | [1] |  |  |  |  | 15,709,786 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,871,802 | 450,962 |  |  |
[1] | All share data for all periods have been retroactively restated to reflect IDI's 1-for-5 reverse stock split, which was effective on March 19, 2015.

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