Note 9 - Stockholders' Equity (Tables)

3 Months Ended

Sep. 30, 2015

Stockholders' Equity Note [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life		Aggregate Intrinsic Value
Outstanding at July 1, 2015		4,413,870	$	1.88		4.1		-
Granted		-		-
Exercised		-		-
Forfeited		-		-
Expired		-		-
Outstanding at September 30, 2015		4,413,870	$	1.88		4.1	$	253,000
Exercisable at September 30, 2015		4,313,870	$	1.91		4.0	$	213,000

Schedule of Nonvested Share Activity [Table Text Block]

	Options		Weighted Average Grant-Date Fair Value
Nonvested at July 1, 2015		100,000	$	0.76
Granted		-		-
Vested		-		-
Nonvested at September 30, 2015		100,000	$	0.76

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three months ended September 30, 2015		Three months ended September 30, 2014
General and administrative:
Fair value of stock options expensed	$	1,838	$	-
Total	$	1,838	$	-
Research and development:
Fair value of stock options expensed	$	13,482	$	-
Total	$	13,482	$	-