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PLANT, PROPERTY AND EQUIPMENT | 12 Months Ended
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Sep. 30, 2021
PLANT, PROPERTY AND EQUIPMENT |
5. PLANT, PROPERTY AND EQUIPMENT |
5. | PROPERTY AND EQUIPMENT
| Property and equipment consisted of the following at September 30:
|  | 2021 |  |  | 2020 |
Research equipment |  | $ | 4,211,124 |  |  | $ | 3,898,242 |
Furniture and equipment |  |  | 99,768 |  |  |  | 99,768 |
Leasehold improvements |  |  | 13,465,123 |  |  |  | 5,519,161 |
|  |  | 17,776,015 |  |  |  | 9,517,171 |
Accumulated depreciation and amortization |  |  | (4,112,453 | ) |  |  | (3,673,178 | )
Net property and equipment |  | $ | 13,663,562 |  |  | $ | 5,843,993 |
| Depreciation expense for the years ended September 30, 2021 and 2020 totaled approximately $447,000 and $389,000 respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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