Note 15 - Acquisitions - Revenue and Net Income of Acquired Entities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 143,885,934	$ 127,754,927
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	13,294,793	6,561,403
Reverso Pumps, Inc. [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	6,527,485	5,467,426
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	1,141,472	876,558
Separ America [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	2,339,485	1,746,551
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	744,663	353,239
Knitting Machinery Company of America LLC [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	633,573	1,022,603
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	33,579	82,830
Acquired Entities [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	9,500,543	8,236,580
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	1,919,714	1,312,627
All Other Entities [Member]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	134,385,391	119,518,347
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	$ 11,375,079	$ 5,248,776