INVESTMENTS - Investments with Unrealized Losses Policy (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value
Securities available-for-sale, Unrealized loss position, Fair Value, Less than 12 Months	$ 175,855	$ 121,502
Securities available-for-sale, Unrealized loss position, Fair Value, 12 Months or Longer	52,459	27,169
Securities available-for-sale, Unrealized loss position, Fair Value	228,314	148,671
Securities held-to-maturity, Unrealized loss position, Fair Value, Less than 12 Months	7,342
Securities held-to-maturity, Unrealized loss position, Fair Value	7,342
Total securities, Unrealized loss position, Fair Value, Less than 12 Months	183,197
Total securities, Unrealized loss position, Fair Value, 12 Months or Longer	52,459
Total securities, Unrealized loss position, Fair Value	235,656
Unrealized Losses
Securities available-for-sale, Unrealized loss position, Unrealized losses, Less than 12 Months	(23,099)	(2,752)
Securities available-for-sale, Unrealized loss position, Unrealized losses, 12 Months or Longer	(10,366)	(1,373)
Securities available-for-sale, Unrealized losses	(33,465)	(4,125)
Securities held-to-maturity, Unrealized loss position, Unrealized losses, Less than 12 Months	(158)
Securities held-to-maturity, Unrealized losses	(158)
Unrealized loss position, Less than 12 Months, Unrealized Losses	(23,257)
Unrealized loss position, 12 Months or Longer, Unrealized Losses	(10,366)
Unrealized loss position, Unrealized Losses	(33,623)
U.S. agency securities
Fair Value
Securities available-for-sale, Unrealized loss position, Fair Value, Less than 12 Months	13,349	13,125
Securities available-for-sale, Unrealized loss position, Fair Value, 12 Months or Longer	3,132	3,752
Securities available-for-sale, Unrealized loss position, Fair Value	16,481	16,877
Unrealized Losses
Securities available-for-sale, Unrealized loss position, Unrealized losses, Less than 12 Months	(1,837)	(105)
Securities available-for-sale, Unrealized loss position, Unrealized losses, 12 Months or Longer	(835)	(213)
Securities available-for-sale, Unrealized losses	(2,672)	(318)
Corporate securities
Fair Value
Securities available-for-sale, Unrealized loss position, Fair Value, Less than 12 Months	1,494
Securities available-for-sale, Unrealized loss position, Fair Value, 12 Months or Longer	4,240	5,476
Securities available-for-sale, Unrealized loss position, Fair Value	5,734	5,476
Securities held-to-maturity, Unrealized loss position, Fair Value, Less than 12 Months	7,342
Securities held-to-maturity, Unrealized loss position, Fair Value	7,342
Unrealized Losses
Securities available-for-sale, Unrealized loss position, Unrealized losses, Less than 12 Months	(4)
Securities available-for-sale, Unrealized loss position, Unrealized losses, 12 Months or Longer	(760)	(524)
Securities available-for-sale, Unrealized losses	(764)	(524)
Securities held-to-maturity, Unrealized loss position, Unrealized losses, Less than 12 Months	(158)
Securities held-to-maturity, Unrealized losses	(158)
Municipal bonds
Fair Value
Securities available-for-sale, Unrealized loss position, Fair Value, Less than 12 Months	81,129	72,098
Securities available-for-sale, Unrealized loss position, Fair Value, 12 Months or Longer	39,852	14,116
Securities available-for-sale, Unrealized loss position, Fair Value	120,981	86,214
Unrealized Losses
Securities available-for-sale, Unrealized loss position, Unrealized losses, Less than 12 Months	(13,146)	(1,961)
Securities available-for-sale, Unrealized loss position, Unrealized losses, 12 Months or Longer	(8,178)	(560)
Securities available-for-sale, Unrealized losses	(21,324)	(2,521)
Mortgage-backed securities
Fair Value
Securities available-for-sale, Unrealized loss position, Fair Value, Less than 12 Months	68,824	33,291
Securities available-for-sale, Unrealized loss position, Fair Value, 12 Months or Longer	5,235	3,825
Securities available-for-sale, Unrealized loss position, Fair Value	74,059	37,116
Unrealized Losses
Securities available-for-sale, Unrealized loss position, Unrealized losses, Less than 12 Months	(7,451)	(620)
Securities available-for-sale, Unrealized loss position, Unrealized losses, 12 Months or Longer	(593)	(76)
Securities available-for-sale, Unrealized losses	(8,044)	(696)
U.S. Small Business Administration securities
Fair Value
Securities available-for-sale, Unrealized loss position, Fair Value, Less than 12 Months	11,059	2,988
Securities available-for-sale, Unrealized loss position, Fair Value	11,059	2,988
Unrealized Losses
Securities available-for-sale, Unrealized loss position, Unrealized losses, Less than 12 Months	(661)	(66)
Securities available-for-sale, Unrealized losses	$ (661)	$ (66)