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Note 5 - Income Taxes (Detail) - Net deferred tax liability: (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Reserves and accrued liabilities | $ 5,687 | $ 5,326
Other | 2,714 | 2,274
| 8,401 | 7,600
Depreciation | 111,794 | 106,113
Prepaid expenses | 2,526 | 2,584
| 114,320 | 108,697
Net deferred tax liability | $ 105,919 | $ 101,097

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