SECURITIES (Debt Securities, Held-to-Maturity, Allowance for Credit Loss) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning Balance				$ (94)
Debt Securities, Held-to-maturity, Allowance for Credit Loss	$ 110			110
New credit standard (ASC 326) - impact in year of adoption			$ 11,215
Ending Balance	110			110
U.S. Government and agency obligations
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning Balance		$ 0	0	0	$ 0
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0	0	0	0
New credit standard (ASC 326) - impact in year of adoption		0			0
Provision for credit losses	0	0		0	0
Ending Balance	0	0	0	0	0
Municipal bonds
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning Balance		61	0	59	0
Debt Securities, Held-to-maturity, Allowance for Credit Loss	64	61	61	64	61
New credit standard (ASC 326) - impact in year of adoption		0			28
Provision for credit losses	3	0		5	33
Ending Balance	64	61	61	64	61
Corporate bonds
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning Balance		37	0	35	0
Debt Securities, Held-to-maturity, Allowance for Credit Loss	46	41	37	46	41
New credit standard (ASC 326) - impact in year of adoption		0			35
Provision for credit losses	9	4		11	6
Ending Balance	46	41	37	46	41
Mortgage-backed or related securities
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning Balance		0	0	0	0
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0	0	0	0
New credit standard (ASC 326) - impact in year of adoption		0			0
Provision for credit losses	0	0		0	0
Ending Balance	0	0	0	0	0
Held-to-maturity Securities
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning Balance	(98)	98	0	94	0
Debt Securities, Held-to-maturity, Allowance for Credit Loss	110	102	98	110	102
New credit standard (ASC 326) - impact in year of adoption		0			63
Provision for credit losses	12	4		16	39
Ending Balance	$ 110	$ 102	$ 98	$ 110	$ 102