Fair Value (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	$ 125,562	$ 130,713
Total investments, available-for-sale	134,026	139,046
Significant Unobservable Inputs (Level 3) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	0	0	0	0
Fair Value Measurements Using [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total investments, available-for-sale	134,026	139,046
Cash and cash equivalents	71,215	59,104
Total	205,241	198,150
Fair Value Measurements Using [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total investments, available-for-sale	22,291	22,161
Cash and cash equivalents	71,215	59,104
Total	93,506	81,265
Fair Value Measurements Using [Member] | Significant Other Observable Inputs (Level 2) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total investments, available-for-sale	111,735	116,885
Total	111,735	116,885
Fair Value Measurements Using [Member] | Significant Unobservable Inputs (Level 3) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total investments, available-for-sale
Cash and cash equivalents
Total
Fair Value Measurements Using [Member] | Debt Securities [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	125,562	130,713
Fair Value Measurements Using [Member] | Debt Securities [Member] | U.S. government and agencies [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	12,035	12,110
Fair Value Measurements Using [Member] | Debt Securities [Member] | State [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	4,069	4,111
Fair Value Measurements Using [Member] | Debt Securities [Member] | Political subdivisions [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	785	790
Fair Value Measurements Using [Member] | Debt Securities [Member] | Revenue and assessment [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	19,595	17,996
Fair Value Measurements Using [Member] | Debt Securities [Member] | Corporate bonds [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	66,675	71,537
Fair Value Measurements Using [Member] | Debt Securities [Member] | Agency backed [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	10,109	11,870
Fair Value Measurements Using [Member] | Debt Securities [Member] | Non-agency backed - residential [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	5,432	5,472
Fair Value Measurements Using [Member] | Debt Securities [Member] | Non-agency backed - commercial [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	5,070	5,109
Fair Value Measurements Using [Member] | Debt Securities [Member] | Redeemable preferred stocks [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	1,792	1,718
Fair Value Measurements Using [Member] | Debt Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	13,827	13,828
Fair Value Measurements Using [Member] | Debt Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. government and agencies [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	12,035	12,110
Fair Value Measurements Using [Member] | Debt Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Redeemable preferred stocks [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	1,792	1,718
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	111,735	116,885
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | State [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	4,069	4,111
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | Political subdivisions [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	785	790
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | Revenue and assessment [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	19,595	17,996
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate bonds [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	66,675	71,537
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | Agency backed [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	10,109	11,870
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | Non-agency backed - residential [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	5,432	5,472
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | Non-agency backed - commercial [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale	5,070	5,109
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. government and agencies [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | State [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Political subdivisions [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Revenue and assessment [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate bonds [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Agency backed [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Non-agency backed - residential [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Non-agency backed - commercial [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Debt Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Redeemable preferred stocks [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Total fixed maturities, available-for-sale
Fair Value Measurements Using [Member] | Equity Securities [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Investment in mutual fund, available-for-sale	8,464	8,333
Fair Value Measurements Using [Member] | Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Investment in mutual fund, available-for-sale	8,464	8,333
Fair Value Measurements Using [Member] | Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Presentation of fair-value measurements for each major category of assets measured on a recurring basis
Investment in mutual fund, available-for-sale