Note 2 - Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	June 30, 2018		June 30, 2017
Warrants		12,245,452		8,588,729
Options		6,827,225		4,545,037
Convertible debt		7,549,082		9,115,428
Convertible preferred stock		17,000		16,000

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year ended June 30, 2018			Year ended June 30, 2017
Shares issued – beginning of period		24,748,213			23,573,057
Shares held by subsidiaries (Note 8)		(704,309	)		(704,309	)
Shares outstanding – beginning of period		24,043,904			22,868,748
Weighted average shares for fully vested stock bonuses		-			177,534
Weighted average shares issued during the period		395,155			413,649
Basic weighted average shares – end of period		24,439,059			23,459,931