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Inventories (Tables) | 12 Months Ended
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Sep. 30, 2021
Inventory Disclosure [Abstract] |
Inventories | Inventories consisted of the following (in thousands):
|  | AS OF SEPTEMBER 30, |
|  | 2021 |  |  | 2020 |
Finished goods |  | $ | 19,368 |  |  | $ | 20,798 |
Work in process |  |  | 8,247 |  |  |  | 984 |
Raw materials |  |  | 43,620 |  |  |  | 47,041 |
Obsolescence reserve (net realizable value adjustment) |  |  | (36,936 | ) |  |  | (34,960 | )
|  |  | 34,299 |  |  |  | 33,863 |
Less current portion |  |  | 16,196 |  |  |  | 16,933 |
Non-current portion |  | $ | 18,103 |  |  | $ | 16,930 |

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