Goodwill and Other Intangible Assets

12 Months Ended

Sep. 30, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Note 10 — Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets consisted of:

	Weighted Average Amortization Period (Years)	September 30, 2025		September 30, 2024
Amortized intangible assets
Patents – gross	10.6	$	10.8	$	10.8
Less: accumulated amortization		(5.7)		(5.1)
Patents – net		$	5.1	$	5.7
Customer Relationships and Other – gross	3.8	$	5.3	$	5.2
Less: accumulated amortization		(3.4)		(2.8)
Customer Relationships and Other – net		$	1.9	$	2.4
Total amortized intangible assets		$	7.0	$	8.1
Goodwill		15.4		15.6
Total Goodwill and Other Intangible Assets		$	22.4	$	23.7

Intangible asset amortization expense was $1.1 million for the fiscal year ended September 30, 2025, $1.1 million for the fiscal year ended September 30, 2024 and $1.2 million for the fiscal year ended September 30, 2023, respectively. The estimated intangible asset amortization expense for the next five fiscal years and thereafter is as follows:

2026	$	1.1
2027	1.1
2028	1.1
2029	1.0
2030	0.4
Thereafter	2.3