Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2017

Notes Tables

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

	2017			2016
Common stock equivalents of convertible debentures		--			3,676,471
Vested Series A warrants		404,412			404,412
Unvested Series A warrants		698,529	(1)		698,529	(1)
Warrants – other		3,725,782			3,725,782
Stock options		397,388			104,378
Restricted stock units		59,694			63,566
Total		5,285,805			8,673,138