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LOANS (Aging of Loans Held For Investment) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	$ 32,235	$ 12,617
Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	6,925	171
30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	958	26
60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	5,809	38
90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	158	107
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	25,310	12,446
Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	28,612	10,422
Commercial loans | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	5,809	0
Commercial loans | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Commercial loans | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	5,809	0
Commercial loans | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Commercial loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	22,803	10,422
Mortgage loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	3,181	2,082
Mortgage loans | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	1,116	145
Mortgage loans | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	958	0
Mortgage loans | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	38
Mortgage loans | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	158	107
Mortgage loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	2,065	1,937
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	95
Consumer | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	95
Consumer | Personal loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	95	33
Consumer | Personal loans | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	26
Consumer | Personal loans | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	26
Consumer | Personal loans | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Consumer | Personal loans | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Consumer | Personal loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	95	7
Consumer | Credit lines | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit lines | Total Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit lines | 30-59 Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit lines | 60-89 Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit lines | 90+ Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit lines | Current | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit cards | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit cards | Total Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit cards | 30-59 Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit cards | 60-89 Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit cards | 90+ Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Credit cards | Current | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Overdraft | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Overdraft | Total Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Overdraft | 30-59 Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Overdraft | 60-89 Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Overdraft | 90+ Days Past Due | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Consumer | Overdraft | Current | Non-PCD
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Auto loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	347	80
Auto loans | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Auto loans | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Auto loans | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Auto loans | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Auto loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	347	80
Puerto Rico | Commercial loans | Commercial secured by real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	648	0
Puerto Rico | Commercial loans | Commercial secured by real estate | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Puerto Rico | Commercial loans | Commercial secured by real estate | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Puerto Rico | Commercial loans | Commercial secured by real estate | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Puerto Rico | Commercial loans | Commercial secured by real estate | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Puerto Rico | Commercial loans | Commercial secured by real estate | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	648	0
Puerto Rico | Commercial loans | Other commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	1,952	598
Puerto Rico | Commercial loans | Other commercial and industrial | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Puerto Rico | Commercial loans | Other commercial and industrial | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Puerto Rico | Commercial loans | Other commercial and industrial | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Puerto Rico | Commercial loans | Other commercial and industrial | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
Puerto Rico | Commercial loans | Other commercial and industrial | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	1,952	598
Puerto Rico | Commercial loans | Commercial PR
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	2,600
Puerto Rico | Commercial loans | Commercial PR | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Puerto Rico | Commercial loans | Commercial PR | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Puerto Rico | Commercial loans | Commercial PR | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Puerto Rico | Commercial loans | Commercial PR | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0
Puerto Rico | Commercial loans | Commercial PR | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	2,600
UNITED STATES | Commercial loans | Commercial US
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	26,012	9,824
UNITED STATES | Commercial loans | Commercial US | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	5,809	0
UNITED STATES | Commercial loans | Commercial US | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
UNITED STATES | Commercial loans | Commercial US | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	5,809	0
UNITED STATES | Commercial loans | Commercial US | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	0
UNITED STATES | Commercial loans | Commercial US | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	$ 20,203	$ 9,824

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