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Geographic Regions (Tables) | 12 Months Ended
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Sep. 30, 2021
Segments Geographical Areas [Abstract] |
Schedule of Revenues, Operating Income (Loss) and Identifiable Assets by Geographic Region | We have continuing operations in the United States and China, as well as satellite offices in Europe and Asia. Revenues, operating income (loss) and identifiable assets by geographic region are as follows (in thousands):
|  | Years Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Net revenue: |  |  |  |  |  |  |  |  |
United States* |  | $ | 58,937 |  |  | $ | 48,089 |  |  | $ | 65,942 |
China |  |  | 22,828 |  |  |  | 13,510 |  |  |  | 9,500 |
Other |  |  | 3,440 |  |  |  | 3,864 |  |  |  | 9,593 |
|  | $ | 85,205 |  |  | $ | 65,463 |  |  | $ | 85,035 |
Operating income (loss): |  |  |  |  |  |  |  |  |
United States* |  | $ | (4,174 | ) |  | $ | (5,814 | ) |  | $ | 726 |
China |  |  | 6,958 |  |  |  | 4,744 |  |  |  | 3,686 |
Other |  |  | 941 |  |  |  | 585 |  |  |  | 504 |
|  | $ | 3,725 |  |  | $ | (485 | ) |  | $ | 4,916 |
* United States revenue includes $19.7 million, $14.9 million and $17.4 million in 2021, 2020 and 2019, respectively, related to the products manufactured in our China facility but sold through our Massachusetts facility.
|  | As of September 30, |
|  | 2021 |  |  | 2020 |
Net property, plant and equipment: |  |  |  |  |  |
United States |  | $ | 11,990 |  |  | $ | 11,804 |
China |  |  | 2,093 |  |  |  | 191 |
|  | $ | 14,083 |  |  | $ | 11,995 |

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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