Investments (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2013
|
Dec. 31, 2012
|
---|---|---|
Amortized Cost | $ 34,160 | $ 44,220 |
Market Value | 35,646 | 46,493 |
Municipal Bonds, Current [Member]
|
||
Amortized Cost | 5,875 | 8,004 |
Market Value | 5,949 | 8,117 |
Municipal Bonds, Due from One Through Five Years [Member]
|
||
Amortized Cost | 19,941 | 25,384 |
Market Value | 20,900 | 26,620 |
Municipal Bonds, Due from Six Through Ten Years [Member]
|
||
Amortized Cost | 8,344 | 10,832 |
Market Value | $ 8,797 | $ 11,756 |