Note 9 - Convertible Debentures (Tables)

9 Months Ended

Mar. 31, 2018

Notes Tables

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

	March 31, 2018				June 30, 2017
Share price		0.04	–	0.05		0.04	–	0.10
Conversion price		0.02	–	0.03		0.02	–	0.06
Expected life (years)		0.33	–	0.81		0.50	–	0.81
Interest rate		1.02	–	1.45%		0.80	–	1.11%
Volatility		132.98	–	188.38%		106.63	–	158.06%
Dividend yield			N/A				N/A
Estimated forfeitures			N/A				N/A

	March 31, 2018				June 3 0 , 2017
Share price			0.05				0.03
Conversion price		0.02	–	0.03			0.02
Expected life (years)		0.13	–	1.25		0.39	–	0.64
Interest rate		1.73	–	2.09%			1.14%
Volatility		106.01	–	212.97%		152.55	–	181.43%
Dividend yield			N/A				N/A
Estimated forfeitures			N/A				N/A

Schedule of Change in Derivative Liability and Warrant [Table Text Block]

	Derivative liability
Balance, June 30, 2017	$	988,463
Derivatives settled upon conversion of debt		(1,198,715	)
Gain on extinguishment of convertible debt		(116,038	)
Addition of new derivatives recognized as debt discounts		225,000
Loss on change in fair value of the derivative		1,113,147
Balance, March 31, 2018	$	1,011,857