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Note 12 - Acquisitions (Details Textual) - USD ($)			6 Months Ended		12 Months Ended
Note 12 - Acquisitions (Details Textual) - USD ($)	May 01, 2022	Jan. 10, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Payments to Acquire Businesses, Gross			$ (0)	$ 4,331,739
Goodwill			16,453,049		$ 16,231,938	$ 14,404,618
Goodwill, Purchase Accounting Adjustments			221,111		(169,854)
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	645,372		600,000		$ 400,000
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
Goodwill, Purchase Accounting Adjustments			$ 200,000
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