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Income Taxes (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred tax liabilities: |  |
Property and equipment | $ 7,093 | $ 7,727
Intangible assets | 21,668 | 18,134
Prepaid expenses | 374 | 621
Total deferred tax liabilities | 29,135 | 26,482
Deferred tax assets: |  |
Allowance for doubtful accounts | 226 | 158
Compensation | 2,210 | 3,264
Other accrued liabilities | 118 | 119
Deferred Tax Assets, Gross, Total | 2,554 | 3,541
Less: valuation allowance | 0 | 0
Total net deferred tax asset | 2,554 | 3,541
Net deferred tax liabilities | 26,581 | 22,941
Current portion of deferred tax assets | 1,107 | 845
Non-current portion of deferred tax liabilities | (27,688) | (23,786)
Net deferred tax liabilities | $ (26,581) | $ (22,941)

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