INVESTMENTS (Schedule of Amortized Cost and Fair Value of Other Investments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Equity securities - bank stock, Amortized Cost	$ 544		$ 544
Equity securities - bank stock, Unrealized Gains	444	$ 202
Equity securities - bank stock, Unrealized Losses	0	0
Equity securities - bank stock, Fair Value	988		746
FHLBB (carried at cost)	4,880		8,559
FRB (carried at cost)	5,374		5,374
Other Investments, Amortized Cost	10,798		14,477
Other Investments, Unrealized Gain	444	202
Other Investments, Unrealized Loss	0	$ 0
Other Investments, Fair Value	$ 11,242		$ 14,679