Note 13 - Related Party Transactions (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Jul. 01, 2019
Due from Related Parties, Current, Total		$ 100,000
Schwan Incorporated [Member]
Related Party Transaction, Amounts of Transaction	13,000	13,000
John H Schwan [Member]
Due to Related Parties, Total	$ 1,175,361	1,123,769
Board of Directors Chairman [Member]
Due from Related Parties, Current, Total			$ 1,300,000
Clever Container [Member] | Notes Receivable [Member]
Asset Impairment Charges, Total		$ 1,277,000