Note 6 - Equity (Details) $ / shares in Units, $ in Millions		3 Months Ended	9 Months Ended
	Aug. 31, 2016 employee $ / shares shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2020 USD ($) shares
EQUITY
Granted (in shares) | shares		3,200,000	3,200,000
Restricted Stock
EQUITY
Compensation costs | $		$ 1.1	$ 3.1
Unrecognized compensation cost | $		$ 7.0	$ 7.0
Weighted-average period			2 years 1 month 6 days
Vesting period			4 years
Stock Options
EQUITY
Granted (in shares) | shares	937,424
Number of individuals | employee	2
Purchase price (per share) | $ / shares	$ 5.34
Expiration period	10 years