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Other Long-Term Liabilities - Deferred (Details) - USD ($) | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Aug. 31, 2016 | Apr. 30, 2016 | Sep. 30, 2017 | Dec. 31, 2016
Funds received from investor |  |  | $ 2,800,000 |
Deferred payment arrangements value |  |  | $ 3,200,000 | $ 3,400,000
Minimum [Member] |  |  |  |
Leasehold improvements and long-term liability amortization period |  |  | 5 years |
Maximum |  |  |  |
Leasehold improvements and long-term liability amortization period |  |  | 10 years |
New York Code And Design Academy, Inc. |  |  |  |
Deferred payment arrangements value |  |  | $ 0 |
Total potential cash payments for acquisition |  |  | 25,000,000 |
Contingent consideration payment | $ 500,000 | $ 6,000,000 | 4,600,000 |
New York Code And Design Academy, Inc. | Maximum |  |  |  |
Contingent consideration |  |  | $ 11,500,000 |

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