SECURITIES - Amortized cost, related estimated fair value, and unrealized gains and losses (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Available-for-Sale Securities
Total	$ 350,420	$ 272,585
Gross Unrealized Gains	16,932	6,336
Gross Unrealized Losses	(641)	(993)
Total	366,711	277,928
Other mortgage backed debt securities [Member]
Available-for-Sale Securities
Total	39,420	11,145
Gross Unrealized Gains	470	3
Gross Unrealized Losses	(46)	(10)
Total	39,844	11,138
U.S. Treasury Securities [Member]
Available-for-Sale Securities
Total		2,852
Gross Unrealized Gains		3
Gross Unrealized Losses	0	0
Total		2,855
Obligations of U.S. Government Agencies and Sponsored Agencies Mortgage-Backed [Member]
Available-for-Sale Securities
Total	76,270	77,131
Gross Unrealized Gains	1,628	539
Gross Unrealized Losses	(325)	(387)
Total	77,573	77,283
Obligations of U.S. Government Agencies and Sponsored Agencies Other [Member]
Available-for-Sale Securities
Total	10,534	10,381
Gross Unrealized Gains	2	4
Gross Unrealized Losses	(106)	(88)
Total	10,430	10,297
Obligations of state and political subdivisions [Member]
Available-for-Sale Securities
Total	150,922	114,934
Gross Unrealized Gains	14,193	5,490
Gross Unrealized Losses	(14)	(48)
Total	165,101	120,376
Asset-backed Securities [Member]
Available-for-Sale Securities
Total	44,751	37,596
Gross Unrealized Gains	158	115
Gross Unrealized Losses	(88)	(175)
Total	44,821	37,536
Corporate debt securities [Member]
Available-for-Sale Securities
Total	28,523	18,546
Gross Unrealized Gains	481	182
Gross Unrealized Losses	(62)	(285)
Total	$ 28,942	$ 18,443