Note 10 - Sale of 50% Membership Interest in GB Sciences Louisiana, LLC - Note Receivable (Details) - Wellcana Note [Member]	Nov. 15, 2019 USD ($)
June 1, 2020	$ 500,000
September 1, 2020	750,000
December 1, 2020	1,000,000
March 1, 2020	1,250,000
June 1, 2021	1,500,000
September 1, 2021	1,500,000
December 1, 2021	1,500,000
TOTAL PAYMENTS	8,000,000
DISCOUNT ON NOTE RECEIVABLE	(1,389,408)
NET PRESENT VALUE	$ 6,610,592