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Note 15 - Concentration of Risk | 12 Months Ended
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Dec. 31, 2025
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] |
15. | Concentration of Risk
The Company maintains its cash and cash equivalents in various bank accounts, the balances of which at times may exceed federally insured limits. The Company has not experienced any losses related to these accounts, and management does not believe that the Company is exposed to significant credit risk. Management believes that adequate provision has been made for risk of loss on all credit transactions. The Company buys a significant amount of its disposable protective apparel products from a limited number of contract manufacturers located in Asia and, to a much lesser extent, a contract manufacturer in Mexico. Management believes that other suppliers could provide similar products at comparable terms. A change in suppliers, however, could cause a delay in shipment and a possible loss of sales, which would affect operating results adversely. The Building Supply segment buys semi-finished housewrap and synthetic roof underlayment from its joint venture, Harmony, located in India. Although there are a limited number of manufacturers of the particular product, management believes that other suppliers could provide similar products at comparable terms. A change in suppliers, however, could cause a delay in shipment and a possible loss of sales, which would affect operating results adversely. The Company provides products to customers located primarily in the United States. Customers accounting for 10% or more of accounts receivable as of December 31, 2025 and 2024, and 10% or more of net sales for the years ended December 31, 2025 and 2024, were as follows:
|  |  | December 31, |
|  |  | 2025 |  |  | 2024 |
Accounts Receivable: |  |  |  |  |  |  |  |
| Customer A |  |  | 53 | % |  |  | 36 | %
| Customer B |  |  | * |  |  |  | 14 | %
Net sales: |  |  |  |  |  |  |  |  |
| Customer A |  |  | 24 | % |  |  | 20 | %
| Customer B |  |  | 15 | % |  |  | 15 | %
| Customer C |  |  | 11 | % |  |  | 13 | %
* Customer’s balance was below the 10% threshold for accounts receivable and/or net sales as of and for the year ended December 31, 2025.

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (d)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 3A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482836/275-10-55-3A Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-2A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-1 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/275/tableOfContent + Details
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