Investments (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
The scheduled maturities of the Company's fixed maturity securities based on their fair values
Securities with Unrealized Gains, One year or less	$ 10,648	$ 9,380
Securities with Unrealized Gains, After one through five years	33,527	34,460
Securities with Unrealized Gains, After five through ten years	18,978	25,230
Securities with Unrealized Gains, After ten years	10,744	10,770
Securities with Unrealized Gains, No single maturity date	22,067	23,833
Securities with Unrealized Gains, Total	95,964	103,673
Securities with Unrealized Losses, After one through five years	13,611	11,518
Securities with Unrealized Losses, After five through ten years	15,651	15,181
Securities with Unrealized Losses, No single maturity date	336	336
Securities with Unrealized Losses, Total	29,598	27,035
Securities with No Unrealized Gains or Losses, One year or less		5
Securities with No Unrealized Gains or Losses, After one through five years
Securities with No Unrealized Gains or Losses, After five through ten years
Securities with No Unrealized Gains or Losses, After ten years
Securities with No Unrealized Gains or Losses, No single maturity date
Securities with No Unrealized Gains or Losses, Total		5
All Fixed Maturity Securities, One year or less	10,648	9,385
All Fixed Maturity Securities, After one through five years	47,138	45,978
All Fixed Maturity Securities, After five through ten years	34,629	40,411
All Fixed Maturity Securities, After ten years	10,744	10,770
All Fixed Maturity Securities, No single maturity date	22,403	24,169
All Fixed Maturity Securities, Total	$ 125,562	$ 130,713