Note 7 - Long-term Debt - Summary of Long-term Debt (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Total long-term debt	$ 1,765,508	$ 13,796,724
Less: Current maturities	(1,765,508)	(690,667)
Long-term debt	0	13,106,057
Loan [Member]
Secured Debt		9,315,246
Debt Instrument, face amount	10,387,500	10,387,500
Paycheck Protection Program CARES Act [Member]
Debt Instrument, face amount		2,415,970
HSBC Bank Mortgage Loan [Member]
Secured Debt	1,765,508	2,065,508
Debt Instrument, face amount	$ 6,000,000	$ 6,000,000