ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Activity in accumulated other comprehensive loss [Roll Forward]
Balance	$ 127,134	$ 134,130	$ 150,911	$ 152,474	$ 149,799	$ 150,657	$ 150,911	$ 150,657
Current period other comprehensive loss	(18,492)	(10,641)	(19,963)	(1,133)	146	(4,172)	(49,096)	(5,159)
Balance	113,360	127,134	134,130	154,544	152,474	149,799	113,360	154,544
Accumulated Other Comprehensive Loss [Member]
Activity in accumulated other comprehensive loss [Roll Forward]
Balance	(34,801)	(24,160)	(4,197)	1,012	866	5,038	(4,197)	5,038
Current period other comprehensive loss	(18,492)	(10,641)	(19,963)	(1,133)	146	(4,172)
Balance	(53,293)	(34,801)	(24,160)	(121)	1,012	866	(53,293)	(121)
Unrealized Gains (Losses) on Securities [Member]
Activity in accumulated other comprehensive loss [Roll Forward]
Balance	(33,368)		(2,764)	3,170		7,196	(2,764)	7,196
Current period other comprehensive loss	(18,492)			(1,133)			(49,096)	(5,159)
Balance	(51,860)	(33,368)		2,037	3,170		(51,860)	2,037
Officers' Retirement Plan [Member]
Activity in accumulated other comprehensive loss [Roll Forward]
Balance	(1,420)		(1,420)	(2,105)		(2,105)	(1,420)	(2,105)
Current period other comprehensive loss	0			0			0	0
Balance	(1,420)	(1,420)		(2,105)	(2,105)		(1,420)	(2,105)
Directors' Retirement Plan [Member]
Activity in accumulated other comprehensive loss [Roll Forward]
Balance	(13)		$ (13)	(53)		$ (53)	(13)	(53)
Current period other comprehensive loss	0			0			0	0
Balance	$ (13)	$ (13)		$ (53)	$ (53)		$ (13)	$ (53)