Past Due Loans, Allowance For Credit Losses, Impaired Loans and TDRS (Details) - TDR Rollforward - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Troubled Debt Restructuring Activity Rollforward [Roll Forward]
Beginning balance			$ 5,067
Ending balance	$ 4,181	$ 5,137	4,181	$ 5,137
Accruing
Troubled Debt Restructuring Activity Rollforward [Roll Forward]
Beginning balance	2,702	3,581	2,743	3,704
Net payments received	(28)	(349)	(69)	(391)
Net transfers to non-accrual	(183)	(165)	(183)	(246)
Ending balance	2,491	3,067	2,491	3,067
Non-accrual
Troubled Debt Restructuring Activity Rollforward [Roll Forward]
Beginning balance	2,268	1,996	2,324	19,904
Net payments received	(522)	(55)	(578)	(15,454)
Charge-offs	(239)	(36)	(239)	(2,626)
Net transfers from accruing	183	165	183	246
Ending balance	$ 1,690	$ 2,070	$ 1,690	$ 2,070