LOANS AND ALLOWANCE FOR CREDIT LOSSES - Classes of loans by aging (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	$ 4,604,943	$ 4,761,848
One- to four-family residential construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	21,667	30,533
Subdivision construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	25,415	19,861
Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	27,297	42,504
Commercial construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	292,188	352,793
Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	677,735	710,446
Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	132,620	122,901
Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,487,680	1,543,742
Other residential (multi-family)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,577,941	1,549,249
Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	195,082	220,291
Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	24,738	25,787
Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	24,930	27,905
Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	117,650	115,836
30-59 Days Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	203	2,605
30-59 Days Past Due \| One- to four-family residential construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		12
30-59 Days Past Due \| Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	105	1,704
30-59 Days Past Due \| Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		642
30-59 Days Past Due \| Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	30
30-59 Days Past Due \| Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	12	39
30-59 Days Past Due \| Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	18	145
30-59 Days Past Due \| Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	38	63
60-89 Days Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	237	877
60-89 Days Past Due \| Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	120	816
60-89 Days Past Due \| Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	33
60-89 Days Past Due \| Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	13	1
60-89 Days Past Due \| Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	24	4
60-89 Days Past Due \| Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	47	56
Over 90 Days Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	2,044	3,573
Over 90 Days Past Due \| Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		464
Over 90 Days Past Due \| Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	665	950
Over 90 Days Past Due \| Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,361	1,681
Over 90 Days Past Due \| Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		77
Over 90 Days Past Due \| Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		384
Over 90 Days Past Due \| Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	18	17
Total Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	2,484	7,055
Total Past Due \| One- to four-family residential construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		12
Total Past Due \| Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		464
Total Past Due \| Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	890	3,470
Total Past Due \| Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,361	2,323
Total Past Due \| Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		77
Total Past Due \| Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	63	384
Total Past Due \| Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	25	40
Total Past Due \| Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	60	166
Total Past Due \| Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	85	119
Current
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	4,602,459	4,754,793
Current \| One- to four-family residential construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	21,667	30,521
Current \| Subdivision construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	25,415	19,861
Current \| Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	27,297	42,040
Current \| Commercial construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	292,188	352,793
Current \| Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	676,845	706,976
Current \| Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	131,259	120,578
Current \| Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,487,680	1,543,665
Current \| Other residential (multi-family)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,577,941	1,549,249
Current \| Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	195,019	219,907
Current \| Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	24,713	25,747
Current \| Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	24,870	27,739
Current \| Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	$ 117,565	$ 115,717