Subordinated Notes (Details) (USD $)	0 Months Ended	12 Months Ended
	Dec. 17, 2012	Dec. 31, 2013 trust	Dec. 31, 2012
Subordinated Notes
Number of trusts sponsored		1
Percentage of ownership interest		100.00%
Subordinated notes
Amount of subordinated notes		$ 58,764,000	$ 58,764,000
Redemption of capital securities	30,930,000
June 2007 issuance-fixed rate
Subordinated notes
Maturity date of subordinated notes		Jun. 15, 2037
Amount of subordinated notes		41,238,000
Interest rate (as a percent)		7.22%
August 2007 issuance-fixed rate
Subordinated notes
Maturity date of subordinated notes		Sep. 15, 2037
Amount of subordinated notes		$ 17,526,000
Interest rate (as a percent)		7.10%