INVESTMENT SECURITIES - Amortized Cost of Debt Securities and Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025
AVAILABLE FOR SALE
Amortized Cost	$ 37,497	$ 43,385
Gross Unrealized Gains	83	147
Gross Unrealized Losses	(2,386)	(2,601)
Fair Value	35,194	40,931
U.S. Government Treasuries
AVAILABLE FOR SALE
Amortized Cost		2,415
Gross Unrealized Gains		1
Fair Value		2,416
U.S. Government Agencies
AVAILABLE FOR SALE
Amortized Cost	4,320	6,712
Gross Unrealized Gains	1	23
Gross Unrealized Losses	(31)	(1)
Fair Value	4,290	6,734
Mortgaged-Backed Securities
AVAILABLE FOR SALE
Amortized Cost	11,917	11,433
Gross Unrealized Gains	9	41
Gross Unrealized Losses	(455)	(355)
Fair Value	11,471	11,119
Municipal Securities
AVAILABLE FOR SALE
Amortized Cost	20,238	21,282
Gross Unrealized Gains	72	74
Gross Unrealized Losses	(1,881)	(2,243)
Fair Value	18,429	19,113
SBA Securities
AVAILABLE FOR SALE
Amortized Cost	1,022	1,543
Gross Unrealized Gains	1	8
Gross Unrealized Losses	(19)	(2)
Fair Value	$ 1,004	$ 1,549

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
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Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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