Note 2 - Significant Accounting Policies (Tables)

9 Months Ended

Mar. 31, 2018

Notes Tables

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

	March 31, 2018		March 31, 2017
Warrants		12,176,269		8,382,831
Options		6,827,225		4,520,037
Convertible debt		7,337,805		8,517,079
Convertible preferred stock		16,750		15,750

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

	Three months ended March 31, 2018			Three months ended March 31, 2017			Nine months ended March 31, 2018			Nine months ended March 31, 2017
Shares issued – beginning of period		25,011,939			23,784,363			24,748,213			23,573,057
Shares held by subsidiaries (Note 7)		(704,309	)		(704,309	)		(704,309	)		(704,309	)
Shares outstanding – beginning of period		24,307,630			23,080,054			24,043,904			22,868,748
Weighted average shares for fully vested stock bonuses		-			-			-			289,051
Weighted average shares issued during the period		158,184			268,927			209,903			249,827
Basic weighted average shares –  end of period		24,465,814			23,348,981			24,253,807			23,407,626