Note 8 - Stockholders' Equity (Tables)

3 Months Ended

Sep. 30, 2014

Stockholders' Equity Note [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Weighted average, September 30, 2013		Range, September 30, 2013
Volatility		49%		49%-50%
Dividend yield		-		-
Risk-free interest rate		0.62%		0.59%-0.68%
Expected term (years)		2.68		2.63-2.71

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, 2014		4,258,870		2.81		3.2		-
Granted		-		-
Exercised		-		-
Forfeited		-		-
Expired		-		-
Outstanding at September 30, 2014		4,258,870	$	2.81		2.9	$	-
Exercisable at September 30, 2014		4,258,870	$	2.81		2.9	$	-

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

	Three months ended September 30, 2014		Three months ended September 30, 2013
General and administrative:
Fair value of stock issued to an employee	$	-	$	69,999
Change in fair value from modification of option terms		-		307,638
Fair value of stock options expensed		-		68,210
Total	$	-	$	445,847
Research and development:
Fair value of stock options expensed	$	-	$	17,648
Total	$	-	$	17,648