Note 12 - Segment and Geographic Information (Tables)
|
6 Months Ended |
Feb. 28, 2026 |
|---|
| Notes Tables |
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| Reconciliation of Revenue from Segments to Consolidated [Table Text Block] |
| |
|
Three Months Ended February 28,
|
|
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Six Months Ended February 28,
|
|
| |
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2026
|
|
|
2025
|
|
|
2026
|
|
|
2025
|
|
|
ZERUST® net sales
|
|
$ |
16,633,456 |
|
|
$ |
14,112,017 |
|
|
$ |
33,949,652 |
|
|
$ |
29,587,820 |
|
|
Natur-Tec® net sales
|
|
|
5,363,329 |
|
|
|
4,960,049 |
|
|
|
11,356,014 |
|
|
|
10,822,639 |
|
|
Total net sales
|
|
$ |
21,996,785 |
|
|
$ |
19,072,066 |
|
|
$ |
45,305,666 |
|
|
$ |
40,410,459 |
|
|
| Reconciliation of Cost of Goods Sold from Segments to Consolidated [Table Text Block] |
| |
|
Three Months Ended February 28,
|
|
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Six Months Ended February 28,
|
|
| |
|
2026
|
|
|
% of Product Sales
|
|
|
2025
|
|
|
% of Product Sales
|
|
|
2026
|
|
|
% of Product Sales
|
|
|
2025
|
|
|
% of Product Sales
|
|
|
Direct cost of goods sold
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
ZERUST®
|
|
$ |
9,644,157 |
|
|
|
58.0 |
% |
|
$ |
8,096,177 |
|
|
|
57.4 |
% |
|
$ |
19,795,418 |
|
|
|
58.3 |
% |
|
$ |
16,774,883 |
|
|
|
56.7 |
% |
|
Natur-Tec®
|
|
|
3,748,739 |
|
|
|
69.9 |
% |
|
|
3,237,854 |
|
|
|
65.3 |
% |
|
|
7,741,398 |
|
|
|
68.2 |
% |
|
|
6,927,037 |
|
|
|
64.0 |
% |
|
Indirect cost of goods sold
|
|
|
746,003 |
|
|
|
— |
|
|
|
942,451 |
|
|
|
— |
|
|
|
1,527,338 |
|
|
|
— |
|
|
|
1,750,002 |
|
|
|
— |
|
|
Total net cost of goods sold
|
|
$ |
14,138,899 |
|
|
|
|
|
|
$ |
12,276,482 |
|
|
|
|
|
|
$ |
29,064,154 |
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|
|
|
|
|
$ |
25,451,922 |
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|
|
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| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
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|
Three Months Ended February 28,
|
|
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Six Months Ended February 28,
|
|
| |
|
2026
|
|
|
2025
|
|
|
2026
|
|
|
2025
|
|
|
ZERUST® gross profit
|
|
$ |
6,989,299 |
|
|
$ |
6,015,840 |
|
|
$ |
14,154,234 |
|
|
$ |
12,812,937 |
|
|
Natur-Tec® gross profit
|
|
|
1,614,590 |
|
|
|
1,722,195 |
|
|
|
3,614,616 |
|
|
|
3,895,602 |
|
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Total segment gross profit
|
|
|
8,603,889 |
|
|
|
7,738,035 |
|
|
|
17,768,850 |
|
|
|
16,708,539 |
|
|
Indirect cost of goods sold
|
|
|
(746,003 |
) |
|
|
(942,451 |
) |
|
|
(1,527,338 |
) |
|
|
(1,750,002 |
) |
|
Total gross profit
|
|
$ |
7,857,886 |
|
|
$ |
6,795,584 |
|
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$ |
16,241,512 |
|
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$ |
14,958,537 |
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Total joint venture operations
|
|
|
2,026,569 |
|
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|
1,690,993 |
|
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4,317,942 |
|
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4,104,705 |
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Selling expenses
|
|
|
(4,713,772 |
) |
|
|
(4,210,242 |
) |
|
|
(9,085,274 |
) |
|
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(8,477,896 |
) |
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General and administrative expenses
|
|
|
(3,612,707 |
) |
|
|
(3,320,369 |
) |
|
|
(7,761,660 |
) |
|
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(7,179,312 |
) |
|
Research and development expenses
|
|
|
(1,175,202 |
) |
|
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(1,288,899 |
) |
|
|
(2,396,114 |
) |
|
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(2,632,296 |
) |
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Interest income
|
|
|
65,568 |
|
|
|
210,156 |
|
|
|
102,810 |
|
|
|
235,723 |
|
|
Interest expense
|
|
|
(196,651 |
) |
|
|
(139,155 |
) |
|
|
(396,617 |
) |
|
|
(259,375 |
) |
|
Other income
|
|
|
— |
|
|
|
1,139,756 |
|
|
|
— |
|
|
|
1,139,756 |
|
|
Income before income tax expense
|
|
$ |
251,691 |
|
|
$ |
877,824 |
|
|
$ |
1,022,599 |
|
|
$ |
1,889,842 |
|
|
| Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] |
| |
|
Three Months Ended February 28,
|
|
|
Six Months Ended February 28,
|
|
| |
|
2026
|
|
|
2025
|
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|
2026
|
|
|
2025
|
|
|
Inside the U.S. to unaffiliated customers
|
|
$ |
6,967,402 |
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|
$ |
6,668,183 |
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$ |
14,424,169 |
|
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$ |
14,150,801 |
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Outside the U.S. to:
|
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Joint ventures in which the Company is a shareholder directly and indirectly
|
|
|
599,610 |
|
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|
545,484 |
|
|
|
1,021,305 |
|
|
|
1,172,245 |
|
|
Unaffiliated customers
|
|
|
14,429,773 |
|
|
|
11,858,399 |
|
|
|
29,860,192 |
|
|
|
25,087,413 |
|
| |
|
$ |
21,996,785 |
|
|
$ |
19,072,066 |
|
|
$ |
45,305,666 |
|
|
$ |
40,410,459 |
|
| |
|
Three Months Ended February 28,
|
|
| |
|
2026
|
|
|
% of Total Fees for Services Provided to Joint Ventures
|
|
|
2025
|
|
|
% of Total Fees for Services Provided to Joint Ventures
|
|
|
Poland
|
|
$ |
208,588 |
|
|
|
22.5 |
% |
|
$ |
185,499 |
|
|
|
17.3 |
% |
|
Japan
|
|
|
135,508 |
|
|
|
14.6 |
% |
|
|
122,548 |
|
|
|
11.5 |
% |
|
Thailand
|
|
|
118,522 |
|
|
|
12.8 |
% |
|
|
86,721 |
|
|
|
8.1 |
% |
|
Finland
|
|
|
113,740 |
|
|
|
12.3 |
% |
|
|
69,923 |
|
|
|
6.5 |
% |
|
United Kingdom
|
|
|
88,380 |
|
|
|
9.5 |
% |
|
|
68,804 |
|
|
|
6.4 |
% |
|
Sweden
|
|
|
86,368 |
|
|
|
9.3 |
% |
|
|
96,133 |
|
|
|
9.0 |
% |
|
Czech Republic
|
|
|
73,309 |
|
|
|
7.9 |
% |
|
|
61,340 |
|
|
|
5.7 |
% |
|
Germany
|
|
|
— |
|
|
|
0.0 |
% |
|
|
201,728 |
|
|
|
18.8 |
% |
|
South Korea
|
|
|
26,550 |
|
|
|
2.9 |
% |
|
|
27,320 |
|
|
|
2.6 |
% |
|
Other
|
|
|
74,934 |
|
|
|
8.2 |
% |
|
|
150,247 |
|
|
|
14.1 |
% |
| |
|
$ |
925,899 |
|
|
|
100.0 |
% |
|
$ |
1,070,263 |
|
|
|
100.0 |
% |
| |
|
Six Months Ended February 28,
|
|
| |
|
2026
|
|
|
% of Total Fees for Services Provided to Joint Ventures
|
|
|
2025
|
|
|
% of Total Fees for Services Provided to Joint Ventures
|
|
|
Poland
|
|
$ |
422,890 |
|
|
|
21.2 |
% |
|
$ |
405,510 |
|
|
|
17.2 |
% |
|
Japan
|
|
|
269,158 |
|
|
|
13.5 |
% |
|
|
271,086 |
|
|
|
11.5 |
% |
|
Finland
|
|
|
250,747 |
|
|
|
12.6 |
% |
|
|
201,382 |
|
|
|
8.6 |
% |
|
Thailand
|
|
|
229,580 |
|
|
|
11.5 |
% |
|
|
180,886 |
|
|
|
7.7 |
% |
|
United Kingdom
|
|
|
196,903 |
|
|
|
9.9 |
% |
|
|
185,029 |
|
|
|
7.9 |
% |
|
Sweden
|
|
|
180,748 |
|
|
|
9.1 |
% |
|
|
163,061 |
|
|
|
6.9 |
% |
|
Czech Republic
|
|
|
153,889 |
|
|
|
7.7 |
% |
|
|
133,972 |
|
|
|
5.7 |
% |
|
Germany
|
|
|
74,081 |
|
|
|
3.7 |
% |
|
|
408,056 |
|
|
|
17.3 |
% |
|
South Korea
|
|
|
71,539 |
|
|
|
3.6 |
% |
|
|
95,021 |
|
|
|
4.0 |
% |
|
Other
|
|
|
145,621 |
|
|
|
7.2 |
% |
|
|
310,379 |
|
|
|
13.2 |
% |
| |
|
$ |
1,995,156 |
|
|
|
100.0 |
% |
|
$ |
2,354,382 |
|
|
|
100.0 |
% |
|
| Revenue from External Customers by Geographic Areas [Table Text Block] |
| |
|
At
February 28, 2026
|
|
|
At
August 31, 2025
|
|
|
China
|
|
$ |
5,453,544 |
|
|
$ |
5,355,918 |
|
|
Other
|
|
|
1,975,508 |
|
|
|
1,296,988 |
|
|
United States
|
|
|
8,489,700 |
|
|
|
8,531,012 |
|
|
Total property and equipment, net
|
|
$ |
15,918,752 |
|
|
$ |
15,183,918 |
|
| |
|
Three Months Ended February 28,
|
|
| |
|
2026
|
|
|
2025
|
|
|
China
|
|
$ |
4,425,027 |
|
|
$ |
3,735,100 |
|
|
Brazil
|
|
|
1,770,584 |
|
|
|
1,515,680 |
|
|
India
|
|
|
5,393,334 |
|
|
|
4,870,068 |
|
|
Other
|
|
|
3,440,437 |
|
|
|
2,283,035 |
|
|
United States
|
|
|
6,967,403 |
|
|
|
6,668,183 |
|
|
Total net sales
|
|
$ |
21,996,785 |
|
|
$ |
19,072,066 |
|
| |
|
Six Months Ended February 28,
|
|
| |
|
2026
|
|
|
2025
|
|
|
China
|
|
$ |
9,359,965 |
|
|
$ |
7,729,869 |
|
|
Brazil
|
|
|
3,896,754 |
|
|
|
2,900,874 |
|
|
India
|
|
|
10,858,145 |
|
|
|
10,915,803 |
|
|
Other
|
|
|
6,766,633 |
|
|
|
4,713,112 |
|
|
United States
|
|
|
14,424,169 |
|
|
|
14,150,801 |
|
|
Total net sales
|
|
$ |
45,305,666 |
|
|
$ |
40,410,459 |
|
|