Note 17 - Convertible Redeemable Preferred Stock - Summary of Warrant Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Balance, shares (in shares)	195,160
Balance, weighted average exercise price (in dollars per share)	$ 1.75	$ 1.00
Granted, shares (in shares)	128,572
Granted, weighted average exercise price (in dollars per share)	$ 1.75
Cancelled/Expired, weighted average exercise price (in dollars per share)	$ 1.00
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
Exercisable, shares (in shares)	128,572
Exercisable at December 31, 2021 (in dollars per share)	$ 1.75