Investments, Part II (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Schedule of investments aggregated by industry [Abstract]
Carrying Value	$ 240,285us-gaap_Investments	$ 228,961us-gaap_Investments
Amortized Cost	226,010	219,417
Unrealized Gains (Losses)	14,275	9,544
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months	47,691	105,821
12 months or longer	11,985	6,938
Total Fair Value	59,676	112,759
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months	1,611	4,542
12 months or longer	1,384	1,264
Total Unrealized Losses	2,995	5,806
U.S. Treasury securities and obligations of U.S. Government agencies and authorities [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	33,898	17,240
Amortized Cost	32,469	16,874
Unrealized Gains (Losses)	1,429	366
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months	3,695	8,326
12 months or longer	2,692	0
Total Fair Value	6,387	8,326
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months	7	210
12 months or longer	23	0
Total Unrealized Losses	30	210
Obligations of states and political subdivisions [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	11,459	7,611
Amortized Cost	10,778	7,226
Unrealized Gains (Losses)	681	385
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months		1,018
12 months or longer		0
Total Fair Value		1,018
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months		17
12 months or longer		0
Total Unrealized Losses		17
Utilities and telecom [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	15,383	18,006
Amortized Cost	12,589	16,150
Unrealized Gains (Losses)	2,794	1,856
Financial services [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	65,915	58,451
Amortized Cost	62,352	57,118
Unrealized Gains (Losses)	3,563	1,333
Other business - diversified [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	70,365	70,504
Amortized Cost	69,940	72,409
Unrealized Gains (Losses)	425	(1,905)
Other consumer - diversified [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	36,792	51,381
Amortized Cost	31,409	43,872
Unrealized Gains (Losses)	5,383	7,509
Other investments [Member]
Schedule of investments aggregated by industry [Abstract]
Carrying Value	6,473	5,768
Amortized Cost	6,473	5,768
Unrealized Gains (Losses)	0	0
Corporate securities [Member]
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months	43,996	92,049
12 months or longer	9,293	6,938
Total Fair Value	53,289	98,987
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months	1,604	3,714
12 months or longer	1,361	1,264
Total Unrealized Losses	2,965	4,978
Redeemable preferred stocks [Member]
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months		704
12 months or longer		0
Total Fair Value		704
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months		41
12 months or longer		0
Total Unrealized Losses		41
Common and non-redeemable preferred stocks [Member]
Available-for-sale securities, continuous unrealized loss position, Fair Value [Abstract]
Less than 12 months		3,724
12 months or longer		0
Total Fair Value		3,724
Available-for-sale securities, continuous unrealized loss position, Unrealized Losses [Abstract]
Less than 12 months		560
12 months or longer		0
Total Unrealized Losses		560
Schedule of Other Than Temporary Impairments [Abstract]
Investment impairments	$ 196	$ 0

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Amount before tax of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

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