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Note 11 - Segment and Geographic Information - Cost of Goods Sold by Segment (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 28, 2023 | Feb. 28, 2022 | Feb. 28, 2023 | Feb. 28, 2022
ZERUST® | $ 11,867,639 | $ 11,764,304 | $ 25,467,281 | $ 24,254,787
Indirect Cost of Goods Sold [Member] |  |  |  |
ZERUST® | 821,152 | 837,594 | 1,670,867 | 1,699,313
ZERUST [Member] | Direct Cost of Goods Sold [Member] |  |  |  |
ZERUST® | $ 8,115,451 | $ 8,151,274 | $ 17,294,705 | $ 16,857,941
ZERUST® | 56.10% | 62.10% | 58.00% | 61.20%
NaturTec [Member] | Direct Cost of Goods Sold [Member] |  |  |  |
ZERUST® | $ 2,931,036 | $ 2,775,436 | $ 6,501,709 | $ 5,697,533
ZERUST® | 76.90% | 76.40% | 77.40% | 77.00%

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- Definition Represents cost of goods sold as percentage of product sales. + References No definition available. + Details
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
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- Details
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- Details
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Namespace Prefix: |
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- Details
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- Details
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Period Type: |