| Research And Development Expenses |
| | August 31, 2023 | | | August 31, 2022 | | Employee compensation | | $ | 1,373 | | | $ | 2,068 | | Machinery and equipment expenditures | | | - | | | | 1,184 | | External engineering | | | 141 | | | | 611 | | Plant and laboratory operating expenses | | | 447 | | | | 584 | | Tax credits | | | (22 | ) | | | (839 | ) | Other | | | 99 | | | | 143 | | | | $ | 2,038 | | | $ | 3,751 | |
| | August 31, 2023 | | | August 31, 2022 | | Employee compensation | | $ | 2,819 | | | $ | 4,355 | | Machinery and equipment expenditures | | | 1,236 | | | | 3,073 | | External engineering | | | 1,297 | | | | 2,206 | | Plant and laboratory operating expenses | | | 916 | | | | 1,450 | | Tax credits | | | (47 | ) | | | (908 | ) | Other | | | 307 | | | | 376 | | | | $ | 6,528 | | | $ | 10,552 | |
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