Loans, Allowance for Loan Losses and Credit Quality (TDR's and Other Pertinent Information) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Summary of Troubled Debt Restructurings and other pertinent information
TDRS ON ACCRUAL STATUS	$ 26,908	$ 27,093
TDRS ON NONACCRUAL	5,728	5,199
TOTAL TDR'S	32,636	32,292
AMOUNT OF SPECIFIC RESERVES INCLUDED IN THE ALLOWANCE FOR LOAN LOSSES ASSOCIATED WITH TDRS:	1,421	1,417
Additional Commitments To Lend To Borrower For Trouble Debt Restructuring	$ 817	$ 1,378

Additional commitments to lend to a borrower for trouble debt restructuring.

No definition available.

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Amount of specific reserves included in the allowance for loan losses associated with trouble debt restructuring.

No definition available.

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Financing receivable recorded investment trouble debt restructuring.

No definition available.

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Summary of troubled debt restructurings and other pertinent information.

No definition available.

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Troubled Debt Restructurings recorded investment that are on accrual status as of the balance sheet date.

No definition available.

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Troubled Debt Restructurings recorded investment that are on nonaccrual status as of the balance sheet date.

No definition available.

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