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Investments, Aggregated by Type and Industry (Details)
$ in Thousands
 6 Months Ended
Jun. 30, 2017
USD ($)
Securities
Issuer
Dec. 31, 2016
USD ($)
Investments aggregated by type and industry [Abstract]    
Carrying value $ 208,477 $ 210,670
Gross unrealized gains 6,473 5,706
Gross unrealized losses 3,919 5,541
Cost or amortized cost 205,923 210,505
Carrying value 19,473 20,257
Gross unrealized gains 8,555 8,804
Gross unrealized losses 0 0
Cost or amortized cost 10,918 11,453
Other invested assets 9,308 9,709
Other invested assets, cost or amortized cost 9,308 9,709
Policy loans 2,130 2,265
Policy loans, cost or amortized cost 2,130 2,265
Real estate 38 38
Real estate, cost or amortized cost 38 38
Investment in unconsolidated trusts 1,238 1,238
Investment in unconsolidated trusts, cost or amortized cost 1,238 1,238
Total investments 240,664 244,177
Total investments, gross unrealized gains 15,028 14,510
Total investments, gross unrealized losses 3,919 5,541
Total investments, cost or amortized cost 229,555 235,208
Amortized cost of bonds on deposit with insurance regulatory authorities $ 11,225 11,435
Number of securities in unrealized loss position | Securities 61  
Oil and Gas Properties [Member]    
Investments aggregated by type and industry [Abstract]    
Gross unrealized losses $ 1,292  
Fixed maturity investments, number of issuers | Issuer 6  
Fixed Maturities - U.S. Treasury Securities and Obligations of U.S. Government Agencies and Authorities [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value $ 31,131 31,102
Gross unrealized gains 239 197
Gross unrealized losses 383 553
Cost or amortized cost 31,275 31,458
Fixed Maturities - Obligations of States and Political Subdivisions [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 17,907 17,572
Gross unrealized gains 708 625
Gross unrealized losses 47 308
Cost or amortized cost 17,246 17,255
Fixed Maturities - Corporate Securities [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 159,247 161,804
Gross unrealized gains 5,526 4,884
Gross unrealized losses 3,489 4,680
Cost or amortized cost 157,210 161,600
Fixed Maturities - Utilities and Telecom [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 20,235 18,034
Gross unrealized gains 1,643 1,462
Gross unrealized losses 34 88
Cost or amortized cost 18,626 16,660
Fixed Maturities - Financial Services [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 51,935 57,282
Gross unrealized gains 2,315 1,880
Gross unrealized losses 488 911
Cost or amortized cost 50,108 56,313
Fixed Maturities - Other Business - Diversified [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 42,738 57,419
Gross unrealized gains 1,007 1,071
Gross unrealized losses 1,840 2,337
Cost or amortized cost 43,571 58,685
Fixed Maturities - Other Consumer - Diversified [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 44,339 29,069
Gross unrealized gains 561 471
Gross unrealized losses 1,127 1,344
Cost or amortized cost 44,905 29,942
Fixed Maturities - Redeemable Preferred Stocks [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 192 192
Gross unrealized gains 0 0
Gross unrealized losses 0 0
Cost or amortized cost 192 192
Fixed Maturities - Other Consumer Diversified [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 192 192
Gross unrealized gains 0 0
Gross unrealized losses 0 0
Cost or amortized cost 192 192
Equity Securities - Utilities and Telecom [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 1,340 1,601
Gross unrealized gains 376 637
Gross unrealized losses 0 0
Cost or amortized cost 964 964
Equity Securities - Financial Services [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 5,606 5,402
Gross unrealized gains 823 574
Gross unrealized losses 0 0
Cost or amortized cost 4,783 4,828
Equity Securities - Other Business Diversified [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 254 244
Gross unrealized gains 207 197
Gross unrealized losses 0 0
Cost or amortized cost 47 47
Equity Securities - Other Consumer Diversified [Member]    
Investments aggregated by type and industry [Abstract]    
Carrying value 12,273 13,010
Gross unrealized gains 7,149 7,396
Gross unrealized losses 0 0
Cost or amortized cost $ 5,124 $ 5,614