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v3.23.2

Note 4 - Property and Equipment, Net (Details Textual) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Feb. 28, 2023 USD ($) ft² | May 31, 2023 USD ($) | May 31, 2022 USD ($) | May 31, 2023 USD ($) | May 31, 2022 USD ($)
Payments to Acquire Property, Plant, and Equipment |  |  |  | $ 2,607,988 | $ 961,704
Depreciation expense |  | $ 277,253 | $ 291,452 | $ 766,091 | $ 722,443
Property Immediately Adjacent to NTIC’s Headquarters in Circle Pines, Minnesota [Member] |  |  |  |  |
Area of Real Estate Property | ft² | 26,000 |  |  |  |
Payments to Acquire Property, Plant, and Equipment | $ 1,200,000 |  |  |  |

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 + Details
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