Share Data and Net Assets - Schedule of Common Stock Issued and Sold (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Jan. 31, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Investment Company, Changes in Net Assets [Line Items]
Number of Shares Issued (in shares)	5,672,149
Shares issued under the "at the market" offering		$ 2,960	$ 92,748	$ 1,370
Deferred offering costs paid		$ 43	$ 117	$ 235
Net Proceeds	$ 100,000
Average sales price per share (in dollars per share)	$ 17.63
At the Market
Investment Company, Changes in Net Assets [Line Items]
Number of Shares Issued (in shares)		168,055	4,724,506	68,752
Net offering costs		$ 3,000	$ 92,500	$ 1,300
Shares issued under the "at the market" offering		2,987	93,685	1,384
Deferred offering costs paid		26	937	14
Net Proceeds		$ 2,960	$ 92,748	$ 1,370
Average sales price per share (in dollars per share)		$ 17.77	$ 19.83	$ 20.13
Net proceeds excluding offering costs		$ 100	$ 200	$ 100