Note 16 - The Financing and Warrant Liabilities - Warrant Activity (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Balance (in shares)	2,159,865
Weighted average remaining contractual life (Year)	2 years 9 months 14 days	2 years 9 months 10 days
Weighted average exercise price (in dollars per share)	$ 2.00
Exercisable (in shares)	129,000
Exercisable, weighted average remaining contractual life (Year)	2 years 9 months 3 days	18 days
Exercisable, weighted average exercise price (in dollars per share)	$ 1.4927
Granted/Vested (in shares)	2,970,840
Granted/Vested, weighted average remaining contractual life (Year)	3 years 1 month 20 days
Granted/Vested, weighted average exercise price (in dollars per share)	$ 3.70
Granted/Vested, exercisable (in shares)	4,636,865
Granted/Vested, exercisable, weighted average remaining contractual life (Year)	2 years 10 months 2 days
Granted/Vested, exercisable, weighted average exercise price (in dollars per share)	$ 2.91
Forfeited (in shares)	0
Exercised (in shares)	0
Balance (in shares)	5,130,705	2,159,865
Weighted average exercise price (in dollars per share)	$ 2.98	$ 2.00
Exercisable (in shares)	4,765,865	129,000
Exercisable, weighted average exercise price (in dollars per share)	$ 2.87	$ 1.4927