Note 14 - Warrant Liabilities - Warrant Activity (Details) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Balance (in shares)	1,000,343
Balance, weighted average remaining contractual life (Year)	1 year 1 month 9 days	1 year 4 months 9 days
Weighted average exercise price (in dollars per share)	$ 15.11
Exercisable (in shares)	1,001,343
Exercisable, weighted average remaining contractual life (Year)	1 year 1 month 9 days	1 year 4 months 9 days
Exercisable, weighted average exercise price (in dollars per share)	$ 15.11
Granted/Vested (in shares)	0
Exercised (in shares)	0
Balance (in shares)	1,000,343	1,000,343
Weighted average exercise price (in dollars per share)	$ 15.11	$ 15.11
Exercisable (in shares)	1,000,343	1,001,343
Exercisable, weighted average exercise price (in dollars per share)	$ 15.11	$ 15.11