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Goodwill (Tables)
 12 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill

The changes in the carrying amount of goodwill, by reportable segment, for the year ended September 30, 2023 are as follows, in thousands:

 

 

 

Semiconductor

 

 

Material and Substrate

 

 

Total Goodwill

 

Goodwill

 

$

5,905

 

 

$

5,263

 

 

$

11,168

 

Accumulated impairment losses

 

 

—

 

 

 

—

 

 

 

—

 

Balance at September 30, 2022

 

 

5,905

 

 

 

5,263

 

 

 

11,168

 

Goodwill acquired

 

 

—

 

 

 

16,463

 

 

 

16,463

 

Impairment of goodwill

 

 

—

 

 

 

—

 

 

 

—

 

Balance at September 30, 2023

 

$

5,905

 

 

$

21,726

 

 

$

27,631

 

Goodwill

 

$

5,905

 

 

$

21,726

 

 

$

27,631

 

Accumulated impairment losses

 

 

—

 

 

 

—

 

 

 

—

 

Balance at September 30, 2023

 

$

5,905

 

 

$

21,726

 

 

$

27,631