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Note 11 - Segment and Geographic Information (Tables) | 3 Months Ended
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Feb. 29, 2024
Notes Tables |
Reconciliation of Revenue from Segments to Consolidated [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | February 29, 2024 |  |  | February 28, 2023 |  |  | February 29, 2024 |  |  | February 28, 2023 |
ZERUST® net sales |  | $ | 15,218,095 |  |  | $ | 14,458,747 |  |  | $ | 30,623,840 |  |  | $ | 29,828,748 |
Natur-Tec® net sales |  |  | 5,624,443 |  |  |  | 3,812,078 |  |  |  | 10,400,373 |  |  |  | 8,394,843 |
Total net sales |  | $ | 20,842,538 |  |  | $ | 18,270,825 |  |  | $ | 41,024,213 |  |  | $ | 38,223,591 |
|  | Three Months Ended |
|  | February 29, 2024 |  |  | % of Total Fees for Services Provided to Joint Ventures |  |  | February 28, 2023 |  |  | % of Total Fees for Services Provided to Joint Ventures |
Poland |  | $ | 217,786 |  |  |  | 16.7 | % |  | $ | 199,927 |  |  |  | 16.0 | %
Germany |  |  | 206,740 |  |  |  | 15.9 | % |  |  | 202,964 |  |  |  | 16.2 | %
France |  |  | 195,176 |  |  |  | 15.0 | % |  |  | 118,938 |  |  |  | 9.5 | %
Japan |  |  | 111,995 |  |  |  | 8.6 | % |  |  | 153,795 |  |  |  | 12.3 | %
Sweden |  |  | 102,984 |  |  |  | 7.9 | % |  |  | 112,615 |  |  |  | 9.0 | %
Finland |  |  | 95,748 |  |  |  | 7.3 | % |  |  | 91,620 |  |  |  | 7.3 | %
Thailand |  |  | 90,264 |  |  |  | 6.9 | % |  |  | 91,601 |  |  |  | 7.3 | %
Czech Republic |  |  | 84,789 |  |  |  | 6.5 | % |  |  | 91,001 |  |  |  | 7.3 | %
South Korea |  |  | 63,381 |  |  |  | 4.9 | % |  |  | 65,803 |  |  |  | 5.3 | %
United Kingdom |  |  | 55,101 |  |  |  | 4.2 | % |  |  | 65,648 |  |  |  | 5.2 | %
Other |  |  | 79,095 |  |  |  | 6.1 | % |  |  | 58,834 |  |  |  | 4.7 | %
|  | $ | 1,303,059 |  |  |  | 100.0 | % |  | $ | 1,252,746 |  |  |  | 100.0 | %
|  | Six Months Ended |
|  | February 29, 2024 |  |  | % of Total Fees for Services Provided to Joint Ventures |  |  | February 28, 2023 |  |  | % of Total Fees for Services Provided to Joint Ventures |
Poland |  | $ | 415,803 |  |  |  | 16.3 | % |  | $ | 386,623 |  |  |  | 15.9 | %
Germany |  |  | 412,383 |  |  |  | 16.2 | % |  |  | 396,792 |  |  |  | 16.3 | %
France |  |  | 317,142 |  |  |  | 12.4 | % |  |  | 228,295 |  |  |  | 9.4 | %
Japan |  |  | 248,076 |  |  |  | 9.7 | % |  |  | 301,715 |  |  |  | 12.4 | %
Sweden |  |  | 213,520 |  |  |  | 8.4 | % |  |  | 213,051 |  |  |  | 8.8 | %
Finland |  |  | 199,492 |  |  |  | 7.8 | % |  |  | 182,052 |  |  |  | 7.5 | %
Thailand |  |  | 169,702 |  |  |  | 6.6 | % |  |  | 174,557 |  |  |  | 7.2 | %
Czech Republic |  |  | 162,601 |  |  |  | 6.4 | % |  |  | 171,333 |  |  |  | 7.0 | %
South Korea |  |  | 138,338 |  |  |  | 5.4 | % |  |  | 129,197 |  |  |  | 5.3 | %
United Kingdom |  |  | 118,251 |  |  |  | 4.6 | % |  |  | 123,339 |  |  |  | 5.1 | %
Other |  |  | 156,709 |  |  |  | 6.1 | % |  |  | 127,597 |  |  |  | 5.2 | %
|  | $ | 2,552,017 |  |  |  | 100.0 | % |  | $ | 2,434,551 |  |  |  | 100.0 | %
Reconciliation of Cost of Goods Sold from Segments to Consolidated [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | February 29, 2024 |  |  | % of Product Sales* |  |  | February 28, 2023 |  |  | % of Product Sales* |  |  | February 29, 2024 |  |  | % of Product Sales* |  |  | February 28, 2023 |  |  | % of Product Sales* |
Direct cost of goods sold |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
ZERUST® |  | $ | 8,082,163 |  |  |  | 53.1 | % |  | $ | 8,115,451 |  |  |  | 56.1 | % |  | $ | 16,826,187 |  |  |  | 54.9 | % |  | $ | 17,294,705 |  |  |  | 58.0 | %
Natur-Tec® |  |  | 3,568,719 |  |  |  | 63.5 | % |  |  | 2,931,036 |  |  |  | 76.9 | % |  |  | 6,797,302 |  |  |  | 65.4 | % |  |  | 6,501,709 |  |  |  | 77.4 | %
Indirect cost of goods sold |  |  | 852,492 |  |  |  | — |  |  |  | 921,270 |  |  |  | — |  |  |  | 1,727,286 |  |  |  | — |  |  |  | 1,770,985 |  |  |  | — |
Total net cost of goods sold |  | $ | 12,503,374 |  |  |  |  |  |  | $ | 11,967,757 |  |  |  |  |  |  | $ | 25,350,775 |  |  |  |  |  |  | $ | 25,567,399 |  |  |  |  |
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | February 29, 2024 |  |  | February 28, 2023 |  |  | February 29, 2024 |  |  | February 28, 2023 |
Inside the U.S.A. to unaffiliated customers |  | $ | 6,840,855 |  |  | $ | 6,750,997 |  |  | $ | 14,073,236 |  |  | $ | 14,229,158 |
Outside the U.S.A. to: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Joint ventures in which the Company is a shareholder directly and indirectly |  |  | 611,926 |  |  |  | 1,529,763 |  |  |  | 1,463,377 |  |  |  | 2,163,228 |
Unaffiliated customers |  |  | 13,389,757 |  |  |  | 9,990,065 |  |  |  | 25,487,600 |  |  |  | 21,831,205 |
|  | $ | 20,842,538 |  |  | $ | 18,270,825 |  |  | $ | 41,024,213 |  |  | $ | 38,223,591 |
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] |
|  | At February 29, 2024 |  |  | At August 31, 2023 |
China |  | $ | 5,680,609 |  |  | $ | 5,729,080 |
Other |  |  | 804,148 |  |  |  | 745,469 |
United States |  |  | 8,478,429 |  |  |  | 7,590,805 |
Total property and equipment, net |  | $ | 14,963,186 |  |  | $ | 14,065,354 |
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Three Months Ended |
|  | February 29, 2024 |  |  | February 28, 2023 |
China |  | $ | 3,455,846 |  |  | $ | 2,871,795 |
Brazil |  |  | 1,326,867 |  |  |  | 1,206,790 |
India |  |  | 5,406,404 |  |  |  | 4,364,358 |
Other |  |  | 3,812,566 |  |  |  | 3,076,885 |
United States |  |  | 6,840,855 |  |  |  | 6,750,997 |
Total net sales |  | $ | 20,842,538 |  |  | $ | 18,270,825 |
|  | Six Months Ended |
|  | February 29, 2024 |  |  | February 28, 2023 |
China |  | $ | 7,134,369 |  |  | $ | 6,618,435 |
Brazil |  |  | 2,856,490 |  |  |  | 2,574,208 |
India |  |  | 10,586,795 |  |  |  | 9,211,285 |
Other |  |  | 6,373,323 |  |  |  | 5,590,505 |
United States |  |  | 14,073,236 |  |  |  | 14,229,158 |
Total net sales |  | $ | 41,024,213 |  |  | $ | 38,223,591 |

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