Note 11 - Stock Options, Incentive Plans, Stock Awards, and Employee Benefit Plan - Schedule of Share-based Compensation Activity (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Outstanding, beginning balance (in shares) | shares	5,101,113
Outstanding, weighted average exercise price, beginning balance (in dollars per share) | $ / shares	$ 1.96
Granted (in shares) | shares	339,900
Granted, weighted average exercise price (in dollars per share) | $ / shares	$ 6.37
Vested (in shares) | shares	26,000
Vested, weighted average exercise price (in dollars per share) | $ / shares	$ 0
Forfeited (in shares) | shares	173,111
Forfeited, weighted average exercise price (in dollars per share) | $ / shares	$ 0
Outstanding, ending balance (in shares) | shares	5,241,902
Outstanding, weighted average exercise price, ending balance (in dollars per share) | $ / shares	$ 2.25
Weighted average contractual remaining life, outstanding (Year)	5 years 8 months 26 days
Aggregate intrinsic value, outstanding | $	$ 2.11
Expected to Vest after year end (in shares) | shares	5,241,902
Expected to Vest, weighted average exercise price (in dollars per share) | $ / shares	$ 2.25
Weighted average contractual remaining life, expected to vest after year end (Year)	5 years 8 months 26 days
Aggregate intrinsic value, expected to vest after year end | $	$ 2.11