Note 12 - Acquisitions - Revenue and Net Income of Acquired Entities (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 39,484,356	$ 31,002,746
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	3,391,473	1,065,875
Reverso Pumps, Inc. [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	1,731,100	658,389
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	328,746	125,926
Separ America [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	991,704	234,672
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	292,191	3,281
Knitting Machinery Company of America LLC [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	73,157	0
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	7,681	0
Acquired Entities [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	2,795,961	893,061
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	628,618	129,207
All Other Entities [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	36,688,395	30,109,685
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	$ 2,762,855	$ 936,668