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Severance (Tables) | 12 Months Ended
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Sep. 30, 2022
Restructuring and Related Activities [Abstract] |
Schedule of Severance | The table below details the severance activity for the years ended September 30, 2022 and 2021. The activity during 2021 is the result of staff reductions in our Semiconductor and Material and Substrate operations. The outstanding obligations as of September 30, 2022 and 2021 are as follows, in thousands:
|  | Years Ended September 30, |
|  | 2022 |  |  | 2021 |
Balance at beginning of the year |  | $ | 17 |  |  | $ | 102 |
Severance expense, net of adjustments |  |  | — |  |  |  | 86 |
Cash payments |  |  | (17 | ) |  |  | (171 | )
Balance at the end of the year |  | $ | — |  |  | $ | 17 |

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