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Note 14 - Activity of Business Segments (Tables) | 12 Months Ended
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Dec. 31, 2025
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|  | Years Ended December 31, |  |  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
|  | Building Supply |  |  | Disposable Protective Apparel |
Segment sales |  | $ | 36,031,000 |  |  | $ | 35,965,000 |  |  | $ | 23,111,000 |  |  | $ | 21,875,000 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  | 23,179,000 |  |  |  | 22,902,000 |  |  |  | 13,426,000 |  |  |  | 12,005,000 |
Selling, general and administrative |  |  | 6,830,000 |  |  |  | 7,191,000 |  |  |  | 5,422,000 |  |  |  | 5,375,000 |
Depreciation and amortization |  |  | 711,000 |  |  |  | 661,000 |  |  |  | 112,000 |  |  |  | 108,000 |
Other income |  |  | (155,000 | ) |  |  | (535,000 | ) |  |  | (27,000 | ) |  |  | (94,000 | )
Segment net income |  | $ | 5,466,000 |  |  | $ | 5,746,000 |  |  | $ | 4,178,000 |  |  | $ | 4,481,000 |
|  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |
Building Supply |  | $ | 36,031,000 |  |  | $ | 35,965,000 |
Disposable Protective Apparel |  |  | 23,111,000 |  |  |  | 21,875,000 |
Consolidated net sales |  | $ | 59,142,000 |  |  | $ | 57,840,000 |
Reconciliation of Revenue from Segments to Consolidated [Table Text Block] |
|  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |
Building Supply |  | $ | 5,466,000 |  |  | $ | 5,746,000 |
Disposable Protective Apparel |  |  | 4,178,000 |  |  |  | 4,481,000 |
Total segment income |  |  | 9,644,000 |  |  |  | 10,227,000 |
Unallocated corporate overhead expenses |  |  | 4,975,000 |  |  |  | 5,207,000 |
Provision for income taxes |  |  | 1,138,000 |  |  |  | 1,091,000 |
Consolidated net income |  | $ | 3,531,000 |  |  | $ | 3,929,000 |
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] |
|  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |
Net sales by geographic region |  |  |  |  |  |  |  |
United States |  | $ | 58,527,000 |  |  | $ | 57,211,000 |
International |  |  | 615,000 |  |  |  | 629,000 |
Consolidated net sales |  | $ | 59,142,000 |  |  | $ | 57,840,000 |
|  | As of December 31, |
|  | 2025 |  |  | 2024 |
Long-lived assets, net by geographic region |  |  |  |  |  |  |  |
United States |  | $ | 6,953,000 |  |  | $ | 7,325,000 |
International |  |  | 1,281,000 |  |  |  | 1,195,000 |
Consolidated total long-lived assets, net |  | $ | 8,234,000 |  |  | $ | 8,520,000 |
Reconciliation of Assets from Segment to Consolidated [Table Text Block] |
|  | As of December 31, |
|  | 2025 |  |  | 2024 |
Building Supply |  | $ | 5,617,000 |  |  | $ | 6,069,000 |
Disposable Protective Apparel |  |  | 1,451,000 |  |  |  | 1,424,000 |
Total segment assets |  |  | 7,068,000 |  |  |  | 7,493,000 |
Unallocated corporate assets |  |  | 1,221,000 |  |  |  | 1,082,000 |
Total consolidated assets |  | $ | 8,289,000 |  |  | $ | 8,575,000 |

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