Fair Value Measurements (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Sep. 30, 2025
Assets:
Cash equivalents		$ 6
Marketable securities	$ 55,866	54,625
Total	55,866	54,631
Cash deposits		134,100
Active Markets for Identical Instruments (Level 1)
Assets:
Cash equivalents		6
Marketable securities	55,866	54,625
Total	$ 55,866	$ 54,631