Mortgage Banking (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Mortgage servicing assets:
Balance at beginning of period	$ 9,832	$ 10,048	$ 9,923	$ 10,133
Loans sold, servicing retained	486	313	806	520
Amortization	(446)	(368)	(857)	(660)
Carrying value before valuation allowance at end of period	9,872	9,993	9,872	9,993
Valuation allowance:
Balance at beginning of period	(885)	(1,034)	(911)	(1,027)
Impairment recovery (charges)	141	44	167	37
Balance at end of period	(744)	(990)	(744)	(990)
Net carrying value of MSRs at end of period	9,128	9,003	9,128	9,003
Fair value of MSRs at end of period	$ 9,574	$ 9,584	$ 9,574	$ 9,584