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Fair Value (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred Acquisition Cost Carrying Amount | $ 789 | $ 1,902
Deferred Acquisition Cost Fair Value | 789 | 1,902
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred Acquisition Cost Fair Value | $ 789 | $ 1,902

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