Note 19 - Stock Based Compensation - Restricted Stock Award Activity (Details) - Restricted Stock [Member] - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Non-vested, number of share (in shares)	2,025,000	425,000	2,025,000
Non-vested, weighted average grant date fair value (in dollars per share)	$ 0.76	$ 1.01	$ 0.76
Non-vested, weighted average remaining contractual term (Year)		2 years 10 months 2 days	1 year 6 months	1 year 6 months 14 days
Granted, number of share (in shares)		15,059,291	387,500
Granted, weighted average grant date fair value (in dollars per share)		$ 1.12	$ 0.72
Vested, number of share (in shares)		(13,559,291)	(1,987,500)
Vested, weighted average grant date fair value (in dollars per share)		$ 1.22	$ 0.70
Forfeited, number of share (in shares)	0	0
Forfeited, weighted average grant date fair value (in dollars per share)	$ 0	$ 0
Non-vested, number of share (in shares)		1,925,000	425,000	2,025,000
Non-vested, weighted average grant date fair value (in dollars per share)		$ 0.38	$ 1.01	$ 0.76