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Note 11 - Intangible Assets (Details Textual) - USD ($) $ in Thousands |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
May 25, 2022 | Aug. 18, 2021 | May 12, 2021 | May 31, 2022 | Feb. 28, 2022 | May 31, 2021 | May 31, 2022 | May 31, 2021
Amortization of Intangible Assets |  |  |  | $ 60 |  | $ 20 | $ 100 | $ 30
Kore [Member] |  |  |  |  |  |  |  |
Payments to Acquire Productive Assets, Total |  |  | $ 3,500 |  |  |  |  |
Asset Acquisition, Consideration Transferred, Transaction Cost |  |  | 200 |  |  |  |  |
Asset Acquisition, Consideration Transferred, Total |  |  | 3,700 |  |  |  |  |
Capitalized Key Patents and Intellectual Property Acquired |  |  | $ 2,800 |  |  |  |  |
Patents [Member] | Purchase and Sale Agreement with Andre Buys [Member] |  |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  |  |  |  | $ 900 |  |  |
Patents [Member] | Maximum [Member] | Purchase and Sale Agreement with Andre Buys [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  | 20 years |  |  |
Patents [Member] | Minimum [Member] | Purchase and Sale Agreement with Andre Buys [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  | 15 years |  |  |
Patents [Member] | Kore [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  | 20 years |  |  |
Patents [Member] | Kore [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  | 15 years |  |  |
Ballistipax [Member] | Patents [Member] |  |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  | $ 60 |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  | 17 years |  |  |  |  |  |
Trademarks [Member] | Fox Labs International [Member] |  |  |  |  |  |  |  |
Indefinite-Lived Intangible Assets Acquired | $ 400 |  |  |  |  |  |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9215-128498 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 55 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6829253&loc=SL6831962-166255 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 25 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=127000608&loc=d3e9135-128495 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9212-128498 + Details
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