Note 11 - Acquisitions - Revenue and Net Income of Acquired Entities (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 43,314,111	$ 38,439,639
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	3,131,034	2,996,885
Heany Industries, LLC [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	1,384,712	1,455,531
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	(181,990)	19,469
Advanced Industrial Coatings LLC [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	1,043,438	0
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	10,068	0
Rahn Industries, Incorporated [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	4,309,615	0
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	132,969	0
Acquired Entities [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	6,737,765	1,455,531
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	(38,953)	19,469
All Other Entities [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	36,576,346	36,984,108
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	$ 3,169,987	$ 2,977,416