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Intangibles, net (Tables)
12 Months Ended
Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets

As of September 30, 2025 and 2024, intangible assets are as follows:

September 30, 2025

September 30, 2024

Weighted

Weighted

Average

Average

Remaining

Remaining

Amortization

Accumulated

Amortization

Accumulated

  ​ ​ ​

Period

  ​ ​ ​

Gross

  ​ ​ ​

Amortization

  ​ ​ ​

Net

  ​ ​ ​

Period

  ​ ​ ​

Gross

  ​ ​ ​

Amortization

  ​ ​ ​

Net

(Amounts in thousands)

Patent

7 years

$

86

$

(17)

$

69

 

8 years

$

60

$

(10)

$

50

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Annual amortization expense related to intangible assets for each of the following five successive fiscal years is as follows:

Fiscal year ending September 30:

  ​ ​ ​

(Amounts in thousands)

2026

9

2027

9

2028

9

2029

9

2030

9

Thereafter

24

Total

$

69