Borrowed Funds (Short-term borrowings) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Maximum Month End Balance	$ 57,032	$ 67,599	$ 61,783	$ 84,859
Quarter to Date Average Balance	$ 56,010	$ 63,294	$ 58,531	$ 71,129
Weighted Average Interest Rate During the Period	0.13%	0.13%	0.13%	0.13%
Federal Funds Purchased [Member]
Short-term Debt [Line Items]
Maximum Month End Balance	$ 11,800	$ 12,600	$ 11,800	$ 12,600
Quarter to Date Average Balance	$ 12,294	$ 5,770	$ 8,495	$ 5,738
Weighted Average Interest Rate During the Period	0.69%	0.52%	0.69%	0.50%