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Note 5 - Net Deferred Tax Liability (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred tax assets: |  |
Reserves and accrued liabilities | $ 7,219 | $ 6,049
Other | 2,721 | 2,847
| 9,940 | 8,896
Deferred tax liabilities: |  |
Depreciation | 141,255 | 125,697
Prepaid expenses | 3,049 | 2,843
| 144,304 | 128,540
Net deferred tax liability | $ 134,364 | $ 119,644

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