v2.4.0.6
Investments (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost $ 31,366 $ 30,220
Market Value 32,740 31,568
Municipal Bonds, Current [Member]
   
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 5,544 5,196
Market Value 5,608 5,264
Municipal Bonds, Due from One Through Five Years [Member]
   
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 15,498 17,636
Market Value 16,372 18,527
Municipal Bonds, Due from Six Through Ten Years [Member]
   
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 9,829 7,388
Market Value 10,269 7,777
Municipal Bonds, Due from Eleven through Twenty years [Member]
   
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 495 0
Market Value $ 491 $ 0