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Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Unrealized gain on securities: |  |  |
Unrealized gain on available-for-sale securities, Pre-tax Amount | $ 2,555 | $ 3,127 | $ (632)
Unrealized gain on available-for-sale securities, Tax Expense | 894 | 1,094 | (221)
Other Comprehensive Income Unrealized Gain Loss On Available For Sale Securities Arising During Period Net Of Tax | 1,661 | 2,033 | (411)
Change in unrealized losses on fixed maturity securities with OTTI, Pre-Tax Amount | 1 | (21) |
Change in unrealized losses on fixed maturity securities with OTTI, Tax Expense |  | (7) |
Change in unrealized losses on fixed maturity securities with OTTI, Net-of-Tax Amount | 1 | (14) |
Less amortization of differences between fair value and amortized cost for fixed maturity security transfer, Pre-tax Amount | (101) | (159) | (405)
Less amortization of differences between fair value and amortized cost for fixed maturity security transfer, Tax Expense | (35) | (56) | (141)
Less amortization of differences between fair value and amortized cost for fixed maturity security transfer, Net-of-Tax Amount | (66) | (103) | (264)
Less reclassification adjustment for gains realized in net income, Pre-Tax Amount | (1,279) | 107 | (1,651)
Less reclassification adjustment for gains realized in net income, Tax Expense | (447) | 37 | (578)
Less reclassification adjustment for gains realized in net income, Net-of-Tax Amount | (832) | 70 | (1,073)
Change in deferred tax valuation allowance, Tax Expense |  | 36 | 715
Change in deferred tax valuation allowance | 0 | (36) | (715)
Net unrealized gain, Pre-Tax Amount | 1,176 | 3,054 | (2,688)
Net unrealized gain, Tax Expense | 412 | 1,104 | (225)
Net unrealized gain, Net-of-Tax Amount | 764 | 1,950 | (2,463)
Other comprehensive income, Pre-Tax Amount | 1,176 | 3,054 | (2,688)
Other comprehensive income, Tax Expense | 412 | 1,104 | (225)
Other comprehensive income, Net-of-Tax Amount | $ 764 | $ 1,950 | $ (2,463)

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