Note 6 - Operating Leases (Details)	6 Months Ended
	Jun. 30, 2019 USD ($) ft²
Lease commencement date	Aug. 01, 2018
Lease Expiration Date	Aug. 01, 2028
Lessee, Operating Lease, Discount Rate	10.00%
CALIFORNIA
Area of Land | ft²	4,200
Lease amount per month | $	$ 3,500