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Revenue Recognition (Details Textual) - USD ($) $ in Thousands | Mar. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Gaming liabilities | $ 12,588 |  | $ 12,209
Accumulated deficit | $ (75,931) |  | $ (79,861)
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect Before and After Topic 606 |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Accumulated deficit |  | $ (1,100) |

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