Loans, Allowance for Loan Losses and Credit Quality (TDR's and Other Pertinent Information) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Summary of Troubled Debt Restructurings and other pertinent information
TDRS ON ACCRUAL STATUS	$ 32,182	$ 32,849
TDRS ON NONACCRUAL	4,368	5,225
TOTAL TDR'S	36,550	38,074
AMOUNT OF SPECIFIC RESERVES INCLUDED IN THE ALLOWANCE FOR LOAN LOSSES ASSOCIATED WITH TDRS:	1,565	1,628
Additional Commitments To Lend To Borrower For Trouble Debt Restructuring	$ 1,254	$ 972