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Leases - Components of Operating Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Fixed rent expense	$ 6,636	$ 6,272	$ 6,144
Variable lease payments	1,158	907	1,001
Total cash portion of rent expense	7,794	7,179	7,145
Non-cash straight line rent expense	(380)	(345)	(352)
Total operating lease costs	7,414	6,834	6,793
Lease expense	$ 5	$ 76	$ 83

X

- Definition

Operating Lease, Fixed Payment

+ References

No definition available.

+ Details

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X

- References

No definition available.

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X

- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

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-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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X

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-4

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X

- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
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- Definition

Difference between actual rental income due and rental income recognized on a straight-line basis.

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X

- Definition

Amount of cash outflow for variable lease payment excluded from lease liability.

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-SubTopic 20
-Name Accounting Standards Codification
-Section 45
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