Loans, Allowance for Loan Losses and Credit Quality (Post-Modification balance of TDRs Listed by Type of Modifications) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Post modification balance of Troubled Debt Restructuring
Financing Receivable Modifications Post Modification Recorded Investment Adjusted Interest Rate	$ 0	$ 0	$ 150	$ 0
COURT ORDERED CONCESSION	0	379	75	621
EXTENDED MATURITY	153	0	153	445
TOTAL	$ 153	$ 379	$ 378	$ 1,066