Fair Value Disclosure (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Debt securities [Abstract]
Debt securities	$ 106,212	$ 101,755
Equity securities [Abstract]
Equity securities	30,507	20,982
Recurring [Member]
Debt securities [Abstract]
United States government obligations and authorities	26,094	27,392
Obligations of states and political subdivisions	3,434	3,939
Corporate	73,570	67,313
International	3,114	3,111
Debt securities	106,212	101,755
Equity securities [Abstract]
Common stocks	30,507	20,982
Equity securities	30,507	20,982
Total debt and equity securities	136,719	122,737
Level 1 [Member] | Recurring [Member]
Debt securities [Abstract]
United States government obligations and authorities	17,415	12,464
Obligations of states and political subdivisions	0	0
Corporate	67,983	67,313
International	0	0
Debt securities	85,398	79,777
Equity securities [Abstract]
Common stocks	30,507	20,982
Equity securities	30,507	20,982
Total debt and equity securities	115,905	100,759
Level 2 [Member] | Recurring [Member]
Debt securities [Abstract]
United States government obligations and authorities	8,679	14,928
Obligations of states and political subdivisions	3,434	3,939
Corporate	5,587	0
International	3,114	3,111
Debt securities	20,814	21,978
Equity securities [Abstract]
Common stocks	0	0
Equity securities	0	0
Total debt and equity securities	20,814	21,978
Level 3 [Member] | Recurring [Member]
Debt securities [Abstract]
United States government obligations and authorities	0	0
Obligations of states and political subdivisions	0	0
Corporate	0	0
International	0	0
Debt securities	0	0
Equity securities [Abstract]
Common stocks	0	0
Equity securities	0	0
Total debt and equity securities	$ 0	$ 0