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Investments, Part II (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Schedule of investments aggregated by industry [Abstract]    
Carrying Value $ 228,961 $ 246,892
Amortized Cost 219,417 216,642
Unrealized Gain (Losses) 9,544 30,250
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]    
Less than 12 months 105,821 13,516
12 months or longer 6,938 1,600
Total 112,759 15,116
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]    
Less than 12 months 4,542 189
12 months or longer 1,264 400
Total 5,806 589
U.S. Treasury securities and obligations of U.S. Government agencies and authorities [Member]
    
Schedule of investments aggregated by industry [Abstract]    
Carrying Value 17,240 27,512
Amortized Cost 16,874 22,894
Unrealized Gain (Losses) 366 4,618
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]    
Less than 12 months 8,326  
12 months or longer 0  
Total 8,326  
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]    
Less than 12 months 210  
12 months or longer 0  
Total 210  
Obligations of states and political subdivisions [Member]
    
Schedule of investments aggregated by industry [Abstract]    
Carrying Value 7,611 17,761
Amortized Cost 7,226 15,247
Unrealized Gain (Losses) 385 2,514
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]    
Less than 12 months 1,018  
Total 1,018  
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]    
Less than 12 months 17  
Total 17  
Utilities and telecom [Member]
    
Schedule of investments aggregated by industry [Abstract]    
Carrying Value 18,006 19,219
Amortized Cost 16,150 15,757
Unrealized Gain (Losses) 1,856 3,462
Financial services [Member]
    
Schedule of investments aggregated by industry [Abstract]    
Carrying Value 58,451 56,077
Amortized Cost 57,118 51,702
Unrealized Gain (Losses) 1,333 4,375
Other business - diversified [Member]
    
Schedule of investments aggregated by industry [Abstract]    
Carrying Value 70,504 66,875
Amortized Cost 72,409 59,628
Unrealized Gain (Losses) (1,905) 7,247
Other consumer - diversified [Member]
    
Schedule of investments aggregated by industry [Abstract]    
Carrying Value 51,381 55,269
Amortized Cost 43,872 47,235
Unrealized Gain (Losses) 7,509 8,034
Other Investment [Member]
    
Schedule of investments aggregated by industry [Abstract]    
Carrying Value 5,768 4,179
Amortized Cost 5,768 4,179
Unrealized Gain (Losses) 0 0
Corporate securities [Member]
    
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]    
Less than 12 months 92,049 8,806
12 months or longer 6,938 1,600
Total 98,987 10,406
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]    
Less than 12 months 3,714 147
12 months or longer 1,264 400
Total 4,978 547
Redeemable preferred stocks [Member]
    
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]    
Less than 12 months 704 1,216
12 months or longer 0 0
Total 704 1,216
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]    
Less than 12 months 41 3
12 months or longer 0 0
Total 41 3
Common and non-redeemable preferred stocks [Member]
    
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]    
Less than 12 months 3,724 3,494
12 months or longer 0 0
Total 3,724 3,494
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]    
Less than 12 months 560 39
12 months or longer 0 0
Total $ 560 $ 39