Reinsurance (Effect of Reinsurance on Premiums Written and Earned) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Property, Liability and Casualty Insurance Segment [Member] | Written Premium [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct	$ 13,480	$ 12,966
Assumed	0	0
Ceded	(2,132)	(1,655)
Net	11,348	11,311
Property, Liability and Casualty Insurance Segment [Member] | Earned Premium [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct	13,328	13,407
Assumed	0	0
Ceded	(2,140)	(1,663)
Net	11,188	11,744
Life Insurance Segment [Member] | Written Premium [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct	1,662	1,694
Assumed	0	0
Ceded	(19)	(20)
Net	1,643	1,674
Life Insurance Segment [Member] | Earned Premium [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct	1,765	1,772
Assumed	0	0
Ceded	(19)	(20)
Net	$ 1,746	$ 1,752