Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Oct. 31, 2017	Apr. 30, 2017
Statement of Financial Position [Abstract]
Convertible promissory notes, unamortized discount current	$ 569	$ 0
Convertible promissory notes, unamortized discount non-current	642,232	12,944
Convertible promissory notes - related parties, unamortized discount	$ 36,640	$ 9,888
Common stock, shares authorized	150,000,000	150,000,000
Common stock, no par value
Common stock, shares issued	85,814,690	84,850,475
Common stock, shares outstanding	84,986,959	84,022,744