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Note 6 - Investments Total Debt and Equity Securities (Details) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Fixed maturities held to maturity    
Held-to-maturity Securities $ 50 $ 358
Held-to-maturity Securities, Fair Value Disclosure 50 351
Fixed maturities available for sale securities    
Amortized cost 328,051 120,385
Equity securities available for sale    
Available-for-sale Equity Securities, Amortized Cost Basis 78,106 78,106
Available-for-sale Securities, Equity Securities 144,163 135,168
Total debt and equity securities    
Amortized Cost 406,207 198,849
Fair Value 476,949 256,072
Gross Unrealized Gains 72,153 58,340
Gross Unrealized Losses 1,411 1,117
Debt Securities
    
Fixed maturities held to maturity    
Held-to-maturity Securities 50 358
Held-to-maturity Securities, Fair Value Disclosure 50 351
Gross unrealized gains 0 0
Gross unrealized losses 0 7
Fixed maturities available for sale securities    
Amortized cost 328,051 120,385
Fair value 332,736 120,553
Gross unrealized gains 6,096 1,278
Gross unrealized losses 1,411 1,110
State and municipal obligations
    
Fixed maturities held to maturity    
Held-to-maturity Securities 50 358
Held-to-maturity Securities, Fair Value Disclosure 50 351
Gross unrealized gains 0 0
Gross unrealized losses 0 7
Fixed maturities available for sale securities    
Amortized cost 26,363 26,489
Fair value 27,460 25,946
Gross unrealized gains 1,116 26
Gross unrealized losses 19 569
US government and agency securities
    
Fixed maturities available for sale securities    
Amortized cost 41,481 8,939
Fair value 41,650 9,106
Gross unrealized gains 183 224
Gross unrealized losses 14 57
Corporate bonds and notes
    
Fixed maturities available for sale securities    
Amortized cost 84,012 11,951
Fair value 86,009 12,045
Gross unrealized gains 2,662 578
Gross unrealized losses 665 484
RMBS
    
Fixed maturities available for sale securities    
Amortized cost 59,720 72,665
Fair value 61,233 73,115
Gross unrealized gains 1,513 450
Gross unrealized losses 0 0
Other ABS
    
Fixed maturities available for sale securities    
Amortized cost 96,665  
Fair value 96,060  
Gross unrealized gains 103  
Gross unrealized losses 708  
Foreign government securities
    
Fixed maturities available for sale securities    
Amortized cost 19,568  
Fair value 20,082  
Gross unrealized gains 519  
Gross unrealized losses 5  
Other investments
    
Fixed maturities available for sale securities    
Amortized cost 242 341
Fair value 242 341
Gross unrealized gains 0 0
Gross unrealized losses 0 0
Private Equity Funds, Domestic [Member]
    
Equity securities available for sale    
Available-for-sale Securities, Equity Securities 136,200 128,300
Preferred and Common Stock [Member]
    
Equity securities available for sale    
Available-for-sale Securities, Equity Securities 8,000 6,900
Equity securities
    
Equity securities available for sale    
Available-for-sale Equity Securities, Amortized Cost Basis 78,106 [1] 78,106 [2]
Available-for-sale Securities, Equity Securities 144,163 [1] 135,168 [2]
Gross unrealized gains 66,057 [1] 57,062 [2]
Gross unrealized losses $ 0 [1] $ 0 [2]
[1] Comprising broadly diversified domestic equity mutual funds ($136.2 million fair value) and various preferred and common stocks invested across numerous companies and industries ($8.0 million fair value).
[2] Comprising broadly diversified domestic equity mutual funds ($128.3 million fair value) and various preferred and common stocks invested across numerous companies and industries ($6.9 million fair value).