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Inventories | 6 Months Ended
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Mar. 31, 2022
Inventory Disclosure [Abstract] |
Inventories | 6. Inventories Inventories consist of the following (in thousands):
|  | March 31, 2022 |  |  | September 30, 2021 |
Finished goods |  | $ | 19,926 |  |  | $ | 19,368 |
Work in process |  |  | 3,507 |  |  |  | 8,247 |
Raw materials |  |  | 45,984 |  |  |  | 43,620 |
Obsolescence reserve |  |  | (36,709 | ) |  |  | (36,936 | )
|  |  | 32,708 |  |  |  | 34,299 |
Less current portion |  |  | 18,325 |  |  |  | 16,196 |
Non-current portion |  | $ | 14,383 |  |  | $ | 18,103 |
Raw materials include semi-finished goods and component parts that totaled $22.3 million and $22.7 million at March 31, 2022 and September 30, 2021, respectively. Finished goods and raw materials that totaled $25.9 million and $23.3 million were fully reserved at March 31, 2022 and September 30, 2021, respectively.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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