Mortgage Servicing Rights (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Mortgage Servicing Rights.
Loan servicing fees	$ 4,189,000	$ 4,070,000	$ 4,095,000
Net gain on sales of loans	6,880,000	7,590,000	3,716,000
Amortization of MSR	(3,229,000)	(3,909,000)	(3,250,000)
Recovery of (provision for) valuation allowance on MSR	5,401,000	(931,000)	(148,000)
Total mortgage banking income, net	13,241,000	6,820,000	4,413,000
Estimated future MSR amortization
2014	2,400,000
2015	2,100,000
2016	1,800,000
2017	1,500,000
2018	$ 1,300,000