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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Deferred income tax effects of temporary differences |  |
Unearned premiums | $ 12,276 | $ 9,007
Advanced premiums | 1,918 | 1,451
Unpaid losses and LAE | 2,935 | 3,139
Stock-based compensation | 4,377 | 4,341
Accrued wages | 833 | 958
Allowance for uncollectible receivables | 190 | 276
Additional tax basis of securities | 482 | 2,407
Unrealized losses on investments | 5,114 | 6,425
Total deferred income tax assets | 28,125 | 28,004
Deferred policy acquisition costs, net | (6,845) | (5,013)
Total deferred income tax liabilities | (6,845) | (5,013)
Net deferred income tax asset | $ 21,280 | $ 22,991

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