SECURITIES - Amortized cost, related estimated fair value, and unrealized gains and losses (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Available-for-Sale Securities
Amortized Cost	$ 447,152	$ 428,311
Gross Unrealized Gains	3,735	12,964
Gross Unrealized Losses	(16,006)	(3,359)
Total	434,881	437,916
Other mortgage backed debt securities [Member]
Available-for-Sale Securities
Amortized Cost	42,152	39,881
Gross Unrealized Gains		99
Gross Unrealized Losses	(1,642)	(430)
Total	40,510	39,550
U.S. Treasury and/or agency securities [Member]
Available-for-Sale Securities
Amortized Cost	20,213	7,825
Gross Unrealized Losses	(906)	(96)
Total	19,307	7,729
Obligations of U.S. Government Agencies and Sponsored Agencies Mortgage-Backed [Member]
Available-for-Sale Securities
Amortized Cost	118,832	116,039
Gross Unrealized Gains	52	560
Gross Unrealized Losses	(6,366)	(1,688)
Total	112,518	114,911
Obligations of U.S. Government Agencies and Sponsored Agencies Other [Member]
Available-for-Sale Securities
Amortized Cost	6,818	7,636
Gross Unrealized Gains	4	5
Gross Unrealized Losses	(78)	(65)
Total	6,744	7,576
Obligations of state and political subdivisions [Member]
Available-for-Sale Securities
Amortized Cost	178,308	175,021
Gross Unrealized Gains	3,472	11,709
Gross Unrealized Losses	(5,557)	(554)
Total	176,223	186,176
Asset-backed Securities [Member]
Available-for-Sale Securities
Amortized Cost	34,511	36,555
Gross Unrealized Gains	15	143
Gross Unrealized Losses	(556)	(156)
Total	33,970	36,542
Corporate debt securities [Member]
Available-for-Sale Securities
Amortized Cost	46,318	45,354
Gross Unrealized Gains	192	448
Gross Unrealized Losses	(901)	(370)
Total	$ 45,609	$ 45,432