Note 18 - Other Stockholders' Equity - Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Outstanding, options (in shares)	0	471,144
Outstanding, weighted average exercise price (in dollars per share)		$ 3.95
Granted, warrants (in shares)	128,572	792,660
Granted, warrants, weighted average exercise price (in dollars per share)	$ 1.75	$ 1.00
Cancelled/Expired, options (in shares)		(471,144)
Cancelled/Expired, weighted average exercise price (in dollars per share)		$ 3.95
Exercised/Issued, shares (in shares)	(195,160)	(597,500)
Exercised/Issued, weighted average exercise price (in dollars per share)	$ 1.00	$ 1.00
Balance, shares (in shares)	128,572	195,160
Outstanding, warrants, weighted average exercise price (in dollars per share)	$ 1.75	$ 1.00
Exercisable at December 31, 2021, warrants (in shares)	128,572
Exercisable at December 31, 2021 (in dollars per share)	$ 1.75