Mortgage Servicing Rights (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Servicing Asset [Abstract]
Loan servicing fees	$ 4,085,000	$ 4,189,000	$ 4,070,000
Net gain on sales of loans	1,763,000	6,880,000	7,590,000
Amortization of MSR	(2,582,000)	(3,229,000)	(3,909,000)
Recovery of (provision for) valuation allowance on MSR	60,000	5,401,000	(931,000)
Total mortgage banking income, net	3,326,000	13,241,000	6,820,000
Estimated future MSR amortization
2015	2,300,000
2016	2,000,000
2017	1,600,000
2018	1,400,000
2019	$ 1,200,000