Note 5 - Notes Payable - Schedule of Debt Payable (Details) - USD ($)	Dec. 31, 2019	Apr. 23, 2019	Mar. 31, 2019
Discount, short-term notes payable	$ (1,008,086)		$ (799,410)
Note Payable to John Davis [Member]
Face Value, short-term notes payable	151,923
Discount, short-term notes payable
Carrying Value, short-term notes payable	151,923
Convertible Notes Payable [Member] | The 6% Note Payable Due November 30, 2018 [Member]
Face Value, short-term notes payable	1,257,000
Discount, short-term notes payable	(257,177)
Carrying Value, short-term notes payable	999,823
Convertible Notes Payable [Member] | The 8% Convertible Promissory Note Dated April 23, 2019 [Member]
Face Value, short-term notes payable	2,640,000	$ 2,765,000
Discount, short-term notes payable	(142,314)
Carrying Value, short-term notes payable	2,497,686
Senior Secured Convertible Promissory Note [Member] | The Amended 8% Senior Secured Convertible Promissory Note Dated February 28, 2019 [Member]
Face Value, short-term notes payable	1,271,863
Discount, short-term notes payable	(584,842)
Carrying Value, short-term notes payable	687,021
Promissory Note [Member]
Face Value, short-term notes payable	6,020,230
Discount, short-term notes payable	(1,008,086)
Carrying Value, short-term notes payable	5,012,144
Promissory Note [Member] | The 0% Note Payable Dated October 23, 2017 [Member]
Face Value, short-term notes payable	369,444
Discount, short-term notes payable	(23,753)
Carrying Value, short-term notes payable	345,691
Line of Credit [Member]
Face Value, short-term notes payable	330,000
Discount, short-term notes payable
Carrying Value, short-term notes payable	$ 330,000