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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in the Carrying Amount of Goodwill
The changes in the carrying amount of goodwill for our single reporting segment are as follows (in thousands):
Total
Balance at September 30, 2024 and 2023$1,003 
Goodwill related to Remsdaq acquisition(1)
5,143 
Foreign currency translation adjustment(21)
Balance at September 30, 2025$6,125 
(1) See Note P. Business Acquisition for additional information.
Schedule of Intangible Assets Subject to Amortization
Intangible asset balances, subject to amortization, at September 30, 2025 and 2024 consisted of the following (in thousands):
 September 30, 2025September 30, 2024
 Weighted Average Remaining Useful Lives in YearsGross
Carrying
Value		Accumulated
Amortization		Net
Carrying
Value		Gross
Carrying
Value		Accumulated
Amortization		Net
Carrying
Value
Customer relationships12$2,202 $(23)$2,179 $— $— $— 
Technologies53,518 (76)3,442 500 — 500 
Trademarks10475 (6)469 — — — 
Order backlog155 (7)48 — — — 
Total intangible assets$6,250 $(112)$6,138 $500 $— $500 
Schedule of Estimated Future Amortization Expense of Intangible Assets
As of September 30, 2025, the estimated future amortization expense of intangible assets is as follows (in thousands):
Year Ending September 30:
2026$983 
2027934 
2028934 
2029934 
2030859 
Thereafter1,494 
Total $6,138