v2.4.0.6
Investments (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Amortized Cost $ 37,896 $ 44,220
Market Value 39,598 46,493
Municipal Bonds, Current [Member]
   
Amortized Cost 6,981 8,004
Market Value 7,049 8,117
Municipal Bonds, Due from One Through Five Years [Member]
   
Amortized Cost 22,569 25,384
Market Value 23,586 26,620
Municipal Bonds, Due from Six Through Ten Years [Member]
   
Amortized Cost 8,346 10,832
Market Value $ 8,963 $ 11,756