Note 12 - Acquisitions (Details Textual) - USD ($)			3 Months Ended
	May 01, 2022	Jan. 10, 2022	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Payments to Acquire Businesses, Gross			$ (0)	$ 4,203,734
Goodwill			$ 16,231,938		$ 16,231,938	$ 14,404,618
Reverso Pumps, Inc. [Member]
Payments to Acquire Businesses, Gross		$ 3,951,392
Goodwill		1,572,913
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total		1,300,000
Reverso Pumps, Inc. [Member] | Customer Lists [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total		500,000
Reverso Pumps, Inc. [Member] | Trademarks [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total		800,000
Knitting Machinery Company of America LLC [Member]
Payments to Acquire Businesses, Gross	$ 250,000
Goodwill	424,261
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total	$ 150,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	38,462
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 1,000,012
Knitting Machinery Company of America LLC [Member] | Customer Lists [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	75,000.000
Knitting Machinery Company of America LLC [Member] | Trademarks [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 75,000.000
Separ America [Member] | Reverso Pumps, Inc. [Member]
Payments to Acquire Businesses, Gross		1,600,000
Reverso Asset Purchase Agreement [Member] | Reverso Pumps, Inc. [Member]
Asset Acquisition, Consideration Transferred, Total		$ 2,600,000