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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011 As Adjusted [Member]
--- | --- | ---
Deferred income tax assets: |  |
Discounting of net unpaid loss and loss adjustment expenses | $ 21,878 | $ 20,576
Unearned premiums | 12,043 | 10,446
Accrued expenses and other | 3,870 | 3,555
Accrued policyholder dividends | 916 | 698
Capital loss carryforward |  | 568
Impaired securities | 94 | 94
Accrued insurance-related assessments | 3,564 | 3,472
AMT tax credit | 64 |
Total deferred tax assets | 42,429 | 39,409
Deferred income tax liabilities: |  |
Deferred policy acquisition costs | (7,499) | (6,905)
Deferred charges | (666) | (852)
Unrealized gain on securities available-for-sale | (1,604) | (1,192)
Property and equipment and other | (356) | (52)
Salvage and subrogation | (442) | (360)
Guaranty fund related items | (2,341) |
Total deferred income tax liabilities | (12,908) | (9,361)
Net deferred income taxes | $ 29,521 | $ 30,048

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