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Acquisition of Selected Assets of Manatee Works, Inc. Acquisition of Selected Assets of Manatee Works, Inc. - Contingent Consideration (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Aug. 21, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |  |  |
Business Combination, Consideration Transferred | $ 1,023,000 |  |  |
Contingent consideration payments, maximum years | 3 years |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low | $ 0 |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | 5,000,000 |  |  |
Business Combination, Liabilities Arising from Contingencies, Amount Recognized | 3,790,000 |  |  |
Purchase price | $ 4,813,000 |  |  |
Contingent consideration liability (Note 20) |  | $ 3,000,000 |  |
Revaluation of contingent consideration |  | 790,000 | $ 0 | $ 0
Business Combination, Contingent Consideration, Liability, Current |  | 600,000 |  |
Business Combination, Contingent Consideration, Liability, Noncurrent |  | $ 2,400,000 |  |
Developer network amortization, years |  | 5 years |  |
completed technology amortization, years |  | 5 years |  |

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