Investments, Part II (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Schedule of investments aggregated by industry [Abstract]
Carrying Value	$ 238,385	$ 240,285
Amortized Cost	231,333	226,010
Unrealized Gains (Losses)	7,052	14,275
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months	104,770	47,691
12 months or longer	18,374	11,985
Total Fair Value	123,144	59,676
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months	4,956	1,611
12 months or longer	5,103	1,384
Total Unrealized Losses	10,059	2,995
U.S. Treasury securities and obligations of U.S. Government agencies and authorities [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	22,234	33,898
Amortized Cost	22,119	32,469
Unrealized Gains (Losses)	115	1,429
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months	9,209	3,695
12 months or longer	2,243	2,692
Total Fair Value	11,452	6,387
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months	120	7
12 months or longer	55	23
Total Unrealized Losses	175	30
Obligations of states and political subdivisions [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	25,479	11,459
Amortized Cost	25,410	10,778
Unrealized Gains (Losses)	69	681
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months	16,079
12 months or longer	0
Total Fair Value	16,079
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months	552
12 months or longer	0
Total Unrealized Losses	552
Utilities and telecom [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	18,975	15,383
Amortized Cost	17,888	12,589
Unrealized Gains (Losses)	1,087	2,794
Financial services [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	59,463	65,915
Amortized Cost	58,167	62,352
Unrealized Gains (Losses)	1,296	3,563
Other business - diversified [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	61,158	70,365
Amortized Cost	66,176	69,940
Unrealized Gains (Losses)	(5,018)	425
Other consumer - diversified [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	41,146	36,792
Amortized Cost	31,643	31,409
Unrealized Gains (Losses)	9,503	5,383
Other investments [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	9,930	6,473
Amortized Cost	9,930	6,473
Unrealized Gains (Losses)	0	0
Corporate securities [Member]
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months	79,482	43,996
12 months or longer	16,131	9,293
Total Fair Value	95,613	53,289
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months	4,284	1,604
12 months or longer	5,048	1,361
Total Unrealized Losses	9,332	2,965
Common and non-redeemable preferred stocks [Member]
Schedule of Other Than Temporary Impairments [Abstract]
Investment impairments	$ 0	$ 196