SECURITIES - Continuous Unrealized Loss Position (Details) $ in Thousands	Sep. 30, 2021 USD ($) security	Dec. 31, 2020 USD ($)
Gross Unrealized Losses
Less Than Twelve Months	$ (121)	$ (130)
Over Twelve Months	(45)	0
Total Unrealized Losses	(166)	(130)
Fair Value
Less Than Twelve Months	18,545	16,128
Over Twelve Months	4,033	0
Gross Unrealized Losses
Less Than Twelve Months	(18)	0
Over Twelve Months	0	0
Total Unrealized Losses	(18)	0
Fair Value
Less Than Twelve Months	2,865	0
Over Twelve Months	0	0
Gross Unrealized Losses
Less Than Twelve Months	(139)	(130)
Over Twelve Months	(45)	0
Total Unrealized Losses	(184)	(130)
Fair Value
Less Than Twelve Months	21,410	16,128
Over Twelve Months	$ 4,033	0
Number of securities in loss position | security	33,000
U.S. Treasury securities
Gross Unrealized Losses
Less Than Twelve Months	$ 0	0
Over Twelve Months	0	0
Total Unrealized Losses	0	0
Fair Value
Less Than Twelve Months	0	0
Over Twelve Months	0	0
Gross Unrealized Losses
Less Than Twelve Months	0	0
Over Twelve Months	0	0
Total Unrealized Losses	0	0
Fair Value
Less Than Twelve Months	0	0
Over Twelve Months	0	0
U.S. Government Sponsored Enterprises (GSEs)
Gross Unrealized Losses
Less Than Twelve Months	(47)	(34)
Over Twelve Months	(28)	0
Total Unrealized Losses	(75)	(34)
Fair Value
Less Than Twelve Months	1,624	2,051
Over Twelve Months	1,963	0
Gross Unrealized Losses
Less Than Twelve Months	0	0
Over Twelve Months	0	0
Total Unrealized Losses	0	0
Fair Value
Less Than Twelve Months	0	0
Over Twelve Months	0	0
State and municipal securities
Gross Unrealized Losses
Less Than Twelve Months	(32)	(58)
Over Twelve Months	0	0
Total Unrealized Losses	(32)	(58)
Fair Value
Less Than Twelve Months	7,925	4,979
Over Twelve Months	0	0
Gross Unrealized Losses
Less Than Twelve Months	(18)	0
Over Twelve Months	0	0
Total Unrealized Losses	(18)	0
Fair Value
Less Than Twelve Months	2,865	0
Over Twelve Months	0	0
Corporate debt securities
Gross Unrealized Losses
Less Than Twelve Months	(19)	(5)
Over Twelve Months	0	0
Total Unrealized Losses	(19)	(5)
Fair Value
Less Than Twelve Months	2,513	1,495
Over Twelve Months	0	0
Gross Unrealized Losses
Less Than Twelve Months	0	0
Over Twelve Months	0	0
Total Unrealized Losses	0	0
Fair Value
Less Than Twelve Months	0	0
Over Twelve Months	0	0
Asset based securities
Gross Unrealized Losses
Less Than Twelve Months	(12)	0
Over Twelve Months	0	0
Total Unrealized Losses	(12)	0
Fair Value
Less Than Twelve Months	3,324	960
Over Twelve Months	0	0
Gross Unrealized Losses
Less Than Twelve Months	0	0
Over Twelve Months	0	0
Total Unrealized Losses	0	0
Fair Value
Less Than Twelve Months	0	0
Over Twelve Months	0	0
Mortgage-backed GSE residential/multifamily
Gross Unrealized Losses
Less Than Twelve Months	(11)	(33)
Over Twelve Months	(17)	0
Total Unrealized Losses	(28)	(33)
Fair Value
Less Than Twelve Months	3,159	6,643
Over Twelve Months	2,070	0
Gross Unrealized Losses
Less Than Twelve Months	0	0
Over Twelve Months	0	0
Total Unrealized Losses	0	0
Fair Value
Less Than Twelve Months	0	0
Over Twelve Months	$ 0	$ 0