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Note 6 - Equity Investments in Unconsolidated Affiliate (Details Textual) | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Dec. 31, 2025 USD ($) ft² | Dec. 31, 2024 USD ($) | Dec. 31, 2005
Income (Loss) from Equity Method Investments |  | $ 182,000 | $ 629,000 |
INDIA | Harmony [Member] |  |  |  |
Number of Stores |  | 4 |  |
Number Of Stores Owned |  | 3 |  |
Number Of Stores Rented |  | 1 |  |
INDIA | Harmony [Member] | Manufacturing Building Products [Member] |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  | 139,000 |  |
INDIA | Harmony [Member] | Manufacturing Coated Material and Sewing Proprietary Disposable Protective Apparel [Member] |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  | 121,000 |  |
INDIA | Harmony [Member] | Sewing Proprietary Disposable Protective Apparel [Member] |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  | 23,000 |  |
INDIA | Harmony [Member] | Manufacturing Of Building Products [Member] |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  | 159,000 |  |
Harmony [Member] |  |  |  |
Equity Method Investment, Other than Temporary Impairment |  | $ 0 | 0 |
Expense To Acquire Inventory |  | 19,397,000 | 22,080,000 |
Income (Loss) from Equity Method Investments |  | 182,000 | 629,000 |
Proceeds from Sale of Productive Assets |  | 628,000 | $ 839,000 |
Equity Method Investments |  | 5,548,000 |  |
Equity Method Investment, Aggregate Cost |  | 1,450,000 |  |
Cumulative Equity In Income Of Unconsolidated Affiliate |  | 7,064,000 |  |
Proceeds from Equity Method Investment, Distribution, Return of Capital |  | $ 942,000 |  |
Proceeds from Equity Method Investment, Distribution | $ 77,000 |  |  |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax | $ (1,947,000) |  |  |
Harmony [Member] | Alpha Pro Tech Engineered Products [Member] |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  | 41.66%
Harmony [Member] | Maple Industries and Associates [Member] |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  | 58.34%

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