FAIR VALUE - (Held-to-Maturity Financial Instruments Measured at Fair Value) (Details) - Us Government Obligations And Authorities Corporate And International Securities [Member] - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities, fair Value	$ 4,964	$ 5,274
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities, fair Value	3,809	3,936
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities, fair Value	$ 1,155	$ 1,338