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Note 11 - Acquisitions (Details Textual) - USD ($)							3 Months Ended
Note 11 - Acquisitions (Details Textual) - USD ($)	Feb. 02, 2025	Jan. 02, 2025	Aug. 31, 2024	Aug. 30, 2024	Jan. 03, 2024	Jan. 02, 2024	Mar. 31, 2025	Jun. 30, 2025	Dec. 31, 2024	Dec. 31, 2023
Goodwill								$ 22,623,900	$ 18,547,704	$ 16,453,049
Heany Industries, LLC [Member]
Business Combination, Consideration Transferred					$ 6,600,000	$ 6,550,000
Goodwill					1,200,000	$ 1,232,681
Heany Industries, LLC [Member] \| Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					$ 1,934,000
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)					15 years
Heany Industries, LLC [Member] \| Trademarks [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					$ 51,000
Heany Industries, LLC [Member] \| Inventory and Fixed Assets [Member]
Assets, Fair Value Adjustment							$ (154,024)
Advanced Industrial Coatings LLC [Member]
Business Combination, Consideration Transferred				$ 4,360,985
Goodwill			$ 1,000,000	$ 1,015,939
Advanced Industrial Coatings LLC [Member] \| Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			$ 1,400,000
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)			15 years
Rahn Industries, Incorporated [Member]
Business Combination, Consideration Transferred	$ 12,700,000	$ 12,659,328
Goodwill	3,900,000	$ 3,922,172
Rahn Industries, Incorporated [Member] \| Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 4,100,000
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)	15 years