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Borrowings - Schedule of Consolidated Statements of Assets and Liabilities (Details) - Level 1 [Member] - USD ($) $ in Thousands	Dec. 31, 2024	Sep. 30, 2024
Schedule of Consolidated Statements of Assets and Liabilities [Line Items]
Total debt issuance costs at beginning of period	$ 1,511	$ 1,689
Debt issuance costs during the period		169
Amortized debt issuance costs	93	347
Unamortized debt issuance costs	1,418	1,511
2028 Notes Promissory Note [Member]
Schedule of Consolidated Statements of Assets and Liabilities [Line Items]
Total debt issuance costs at beginning of period	1,357
Debt issuance costs during the period		169
Amortized debt issuance costs	85	15
Unamortized debt issuance costs	1,272	154
2028 Notes Promissory Note [Member]
Schedule of Consolidated Statements of Assets and Liabilities [Line Items]
Total debt issuance costs at beginning of period	154
Debt issuance costs during the period
Amortized debt issuance costs	8
Unamortized debt issuance costs	$ 146
2028 Notes [Member]
Schedule of Consolidated Statements of Assets and Liabilities [Line Items]
Total debt issuance costs at beginning of period		1,689
Debt issuance costs during the period
Amortized debt issuance costs		332
Unamortized debt issuance costs		$ 1,357

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Amount of accumulated amortization of debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482900/835-30-50-1

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-1A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482900/835-30-50-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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