SHORT-TERM AND LONG-TERM BORROWINGS - Long Term Debt (Details) - USD ($)	Sep. 30, 2024	Sep. 30, 2023
Debt Instrument [Line Items]
Trust preferred securities	$ 13,661,000	$ 13,661,000
Subordinated debentures, net of issuance costs	19,693,000	19,591,000
Other long-term borrowings	0	621,000
Long-term borrowings	33,354,000	33,873,000
Discounted leases	0	600,000
Maturities of Long-term Debt
2025	0
2026	0
2027	0
2028	0
2029	0
Thereafter	33,354,000
Total long-term borrowings	33,354,000	$ 33,873,000
Trust preferred securities
Debt Instrument [Line Items]
Long-term borrowings	13,661,000
Maturities of Long-term Debt
2025	0
2026	0
2027	0
2028	0
2029	0
Thereafter	13,661,000
Total long-term borrowings	13,661,000
Subordinated debentures
Debt Instrument [Line Items]
Long-term borrowings	19,693,000
Maturities of Long-term Debt
2025	0
2026	0
2027	0
2028	0
2029	0
Thereafter	19,693,000
Total long-term borrowings	19,693,000
Other long-term borrowings
Debt Instrument [Line Items]
Long-term borrowings	0
Maturities of Long-term Debt
2025	0
2026	0
2027	0
2028	0
2029	0
Thereafter	0
Total long-term borrowings	$ 0