LOANS RECEIVABLE AND THE ALLOWANCE FOR CREDIT LOSSES (Troubled Debt Restructuring) (Details) $ in Thousands	9 Months Ended
Sep. 30, 2025 USD ($) Months	Sep. 30, 2024 USD ($) Months
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring	$ 16,156	$ 5,322
Financing Receivable, Modified, Commitment to Lend	2,500
Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring	16,156
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, Accumulated	1,460
Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring		5,322
Financial Asset, Nonaccrual
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, Accumulated	1,460	5,322
Financial Asset, Past Due
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, Accumulated	1,460	5,322
Multifamily construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring	7,499
Multifamily construction \| Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring	$ 7,499
Financing Receivable, Modified, Weighted Average Term Increase in Months \| Months	12
One- to four- family construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring	$ 2,691
One- to four- family construction \| Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring	$ 2,691
Financing Receivable, Modified, Weighted Average Term Increase in Months \| Months	21
Agricultural Business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring	$ 5,966
Agricultural Business \| Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring	$ 5,966
Financing Receivable, Modified, Weighted Average Term Increase in Months \| Months	12
Commercial Business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring		5,322
Commercial Business \| Extended Maturity
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, Accumulated	$ 1,460
Commercial Business \| Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring		$ 5,322
Financing Receivable, Modified, Weighted Average Term Increase in Months \| Months		3
Commercial Business \| Financial Asset, Nonaccrual
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, Accumulated	1,460	$ 5,322
Commercial Business \| Financial Asset, Past Due
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, Accumulated	$ 1,460	$ 5,322

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