LOANS AND THE ALLOWANCE FOR CREDIT LOSSES - Allowance for loan losses by portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 18,330	$ 23,931	$ 23,931
Impact of ASU 2016-13 adoption	256,555	245,528		$ 252,322	$ 242,738
(Release) provision for credit losses	192	699
Financing Receivable, Allowance for Credit Loss, Writeoff	(594)	(11)
Recoveries	28	11
Ending balance	17,956	24,630
Cash, Securities, and Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	410	961	961
(Release) provision for credit losses	(19)	(184)
Financing Receivable, Allowance for Credit Loss, Writeoff	0		0
Ending balance	391	777
Consumer and Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	185	124	124
(Release) provision for credit losses	(54)	(31)
Financing Receivable, Allowance for Credit Loss, Writeoff	0	(11)	(50)
Recoveries	20	5
Ending balance	151	87
Construction and Development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	5,184	7,945	7,945
(Release) provision for credit losses	(885)	(557)
Financing Receivable, Allowance for Credit Loss, Writeoff	0		0
Ending balance	4,299	7,388
1-4 Family Residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Writeoff	0		0
Ending balance	5,321	4,288
Non-Owner Occupied CRE
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	4,340	2,325	2,325
(Release) provision for credit losses	(30)	(129)
Financing Receivable, Allowance for Credit Loss, Writeoff	0		0
Ending balance	4,310	2,196
Owner Occupied CRE
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	654	1,034	1,034
(Release) provision for credit losses	261	(59)
Financing Receivable, Allowance for Credit Loss, Writeoff	0		0
Ending balance	915	975
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,357	7,172	7,172
(Release) provision for credit losses	802	1,746
Financing Receivable, Allowance for Credit Loss, Writeoff	(594)	0	(9,352)
Recoveries		1
Ending balance	2,569	8,919
1-4 Family Residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	5,200	4,370	$ 4,370
(Release) provision for credit losses	117	(87)
Recoveries	4	$ 5
Ending balance	5,321
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Recoveries	$ 4