ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Changes in Accumulated Other Comprehensive Income By Component) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized Gains and Losses on Available- for-Sales Securities, Opening Balance	$ 13,607	$ (4,796)
Unrealized Gains and Losses on Available- for-Sales Securities, Other comprehensive income ( loss ) before reclassification	15,917	18,515
Unrealized Gains and Losses on Available- for-Sales Securities, Amounts reclassified from accumulated other comprehensive income (loss)	(342)	(112)
Unrealized Gains and Losses on Available- for-Sales Securities, Net current period other comprehensive income (loss)	15,575	18,403
Unrealized Gains and Losses on Available- for-Sales Securities, Ending Balance	29,182	13,607	$ (4,796)
Defined Benefit Pension Items, Opening Balance	(1,548)	(1,395)
Defined Benefit Pension Items, Other comprehensive income before reclassification	(78)	(306)
Defined Benefit Pension Items, Amounts reclassified from accumulated other comprehensive income (loss)	188	153
Net of tax amount	110	(153)	372
Defined Benefit Pension Items, Ending Balance	(1,438)	(1,548)	(1,395)
Total, Opening Balance	12,059	(6,191)
Total, Other comprehensive income (loss) before reclassification	15,839	18,209
Total, Amounts reclassified from accumulated other comprehensive income (loss)	(154)	41
Total other comprehensive income (loss), net of tax	15,685	18,250	(5,280)
Total, Ending Balance	$ 27,744	$ 12,059	$ (6,191)