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Note 12 - Intangible Assets | 9 Months Ended
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Aug. 31, 2023
Notes to Financial Statements |
Intangible Assets Disclosure [Text Block] |
12. | INTANGIBLE ASSETS
The components of intangible assets were as follows:
|  |  |  |  | Balance at August 31, 2023 |  |  | Balance at November 30, 2022 |
|  | Estimated Useful Lives in Years |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Patents |  | 10-17 |  |  | $ | 3,931 |  |  | $ | (659 | ) |  | $ | 3,272 |  |  | $ | 3,931 |  |  | $ | (468 | ) |  | $ | 3,463 |
Trademarks |  | Indefinite |  |  |  | 360 |  |  |  | — |  |  |  | 360 |  |  |  | 360 |  |  |  | — |  |  |  | 360 |
Customer List |  | 2 |  |  |  | 70 |  |  |  | (47 | ) |  |  | 23 |  |  |  | 70 |  |  |  | (21 | ) |  |  | 49 |
Total |  |  |  |  | $ | 4,361 |  |  | $ | (706 | ) |  | $ | 3,655 |  |  | $ | 4,361 |  |  | $ | (489 | ) |  | $ | 3,872 |
The trademarks have an indefinite life and will be assessed annually for impairment. All other intangible assets are finite-lived. Intangible assets amortization expenses are recorded within operating expenses in the accompanying Condensed Consolidated Statements of Operations and Comprehensive Loss. Total intangible assets amortization expense for the nine months ended August 31, 2023 and 2022 were $0.2 million and $0.2 million, respectively. Total intangible assets amortization expense for the three months ended August 31, 2023 and 2022 were $0.1 million and $0.1 million, respectively. Estimated future amortization expense related to intangible assets as of August 31, 2023 are as follows (in thousands):
Fiscal Year Ending November 30, |  |  |  |
2023 (three months) |  | $ | 72 |
2024 |  |  | 270 |
2025 |  |  | 254 |
2026 |  |  | 254 |
2027 |  |  | 254 |
Thereafter |  |  | 2,191 |
Total |  | $ | 3,295 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//350-30/tableOfContent + Details
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