Restrictions on Cash and Cash Equivalents Schedule (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Noninterest Bearing Accounts [Member]
Cash and Cash Equivalents [Line Items]
Uninsured Cash Accounts	$ 266	$ 210
Federal Reserve Bank of Boston [Member]
Cash and Cash Equivalents [Line Items]
Uninsured Cash Accounts	32,077	34,344
FHLB of Boston [Member]
Cash and Cash Equivalents [Line Items]
Uninsured Cash Accounts	$ 1,374	$ 310