LOANS (Aging of Loans Held For Investment) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	$ 12,617	$ 23,978
Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	171	1,114
30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	26	566
60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	38	133
90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	107	415
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	12,446	22,864
Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	10,422	17,518
Commercial loans | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	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	0	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	10,422	17,518
Mortgage loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	2,082	6,308
Mortgage loans | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	145	1,114
Mortgage loans | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	566
Mortgage loans | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	38	133
Mortgage loans | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	107	415
Mortgage loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	1,937	5,194
Consumer | Personal loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	33	122
Consumer | Personal loans | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	26	0
Consumer | Personal loans | 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	26	0
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	7	122
Auto loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	80	30
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	80	30
Puerto Rico | Commercial loans | Commercial secured by real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans		6,328
Puerto Rico | Commercial loans | Commercial secured by real estate | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans		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
Puerto Rico | Commercial loans | Commercial secured by real estate | 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans		0
Puerto Rico | Commercial loans | Commercial secured by real estate | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans		0
Puerto Rico | Commercial loans | Commercial secured by real estate | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans		6,328
Puerto Rico | Commercial loans | Other commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	598	80
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	598	80
Puerto Rico | Commercial loans | Commercial PR
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans		6,408
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		6,408
UNITED STATES | Commercial loans | Commercial US
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	9,824	11,110
UNITED STATES | Commercial loans | Commercial US | Total Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans	0	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	0	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	$ 9,824	$ 11,110