FAIR VALUE (Held-to-Maturity Financial Instruments Measured at Fair Value) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities, fair value	$ 4,300,000
Changes in valuation inputs or changes in assumptions	0
Unobservable inputs reconciliation, transfers	0	$ 0
US Government Obligations and Authorities, Corporate and International Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities, fair value	0		$ 4,331,000
US Government Obligations and Authorities, Corporate and International Securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities, fair value	0		3,453,000
US Government Obligations and Authorities, Corporate and International Securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities, fair value	0		878,000
US Government Obligations and Authorities, Corporate and International Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities, fair value	$ 0		$ 0