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 |