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Note 16 - Segment Information - Total Assets, Depreciation and Amortization, and Capital Expenditures (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Total Assets | $ 45,730,123 | $ 44,448,873 | $ 45,730,123 | $ 44,448,873 | $ 45,100,477 | $ 43,808,102
Depreciation and amortization | 708,667 | 685,927 | 2,074,477 | 2,045,192 | 2,729,847 | 2,739,620
Capital Expenditures | 593,924 | 88,412 | 1,078,133 | 269,509 | 465,725 | 1,892,513
Operating Segments [Member] | Corporate Segment, Scours [Member] |  |  |  |  |  |
Total Assets | 26,039,474 | 23,672,583 | 26,039,474 | 23,672,583 | 24,644,294 | 24,735,413
Depreciation and amortization | 377,484 | 346,430 | 1,075,518 | 1,027,711 | 1,373,815 | 1,365,988
Capital Expenditures | 582,304 | 87,286 | 1,056,490 | 220,098 | 409,696 | 1,096,819
Operating Segments [Member] | Corporate Segment, Mastitis [Member] |  |  |  |  |  |
Total Assets | 15,610,993 | 16,798,955 | 15,610,993 | 16,798,955 | 16,523,048 | 17,827,839
Depreciation and amortization | 313,719 | 319,815 | 942,553 | 958,260 | 1,277,218 | 1,287,600
Capital Expenditures | 11,020 | 1,126 | 18,772 | 49,411 | 53,721 | 795,694
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] |  |  |  |  |  |
Total Assets | 4,079,656 | 3,977,335 | 4,079,656 | 3,977,335 | 3,933,135 | 1,244,850
Depreciation and amortization | 17,464 | 19,682 | 56,406 | 59,221 | 78,814 | 86,032
Capital Expenditures | $ 600 | $ 0 | $ 2,871 | $ 0 | $ 2,308 | $ 0

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