Loans, Allowance for Loan Losses and Credit Quality (TDR's and Other Pertinent Information) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Summary of Troubled Debt Restructurings and other pertinent information
TDRS ON ACCRUAL STATUS	$ 23,053	$ 23,849
TDRS ON NONACCRUAL	28,908	29,348
TOTAL TDR'S	51,961	53,197
AMOUNT OF SPECIFIC RESERVES INCLUDED IN THE ALLOWANCE FOR LOAN LOSSES ASSOCIATED WITH TDRS:	1,051	1,079
Additional Commitments To Lend To Borrower For Trouble Debt Restructuring	$ 865	$ 982