Note 8 - Incentive Plans - Stock Options Activity (Details) - USD ($)	3 Months Ended	4 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Outstanding balance (in shares)	9,705,495
Outstanding, weighted average exercise price (in dollars per share)	$ 10
Awards granted (in shares)		9,705,495
Awards granted, weighted average exercise price (in dollars per share)		$ 10
Outstanding, remaining term (Year)	9 years 146 days	9 years 255 days
Outstanding, intrinsic value		$ 57,942
Exercised (in shares)	(154,268)
Exercised, weighted average exercise price (in dollars per share)	$ 10
Outstanding balance (in shares)	9,551,227	9,705,495
Outstanding, weighted average exercise price (in dollars per share)	$ 10	$ 10
Vested (in shares)	7,049,895	7,204,163
Vested, weighted average exercise price (in dollars per share)	$ 10	$ 10
Vested, remaining term (Year)	9 years 146 days	9 years 255 days
Vested, intrinsic value		$ 43,009
Exercisable (in shares)	7,049,895	7,204,163
Exercisable, weighted average exercise price (in dollars per share)	$ 10	$ 10
Exercisable, remaining term (Year)	9 years 146 days	9 years 255 days
Exercisable, intrinsic value		$ 43,009