Note 8 - Stockholders' Equity (Tables)

6 Months Ended

Dec. 31, 2014

Stockholders' Equity Note [Abstract]

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

	Weighted Average, December 31, 2014		Range, December 31, 2014		Weighted Average, December 31, 2013		Range, December 31, 2013
Volatility		80%		80%		49%		49%-50%
Dividend yield		-		-		-		-
Risk-free interest rate		0.51%		0.51%		0.62%		0.59%-0.68%
Expected term (years)		2		2		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		50,000			1.00
Exercised		-			-
Forfeited		-			-
Expired		(397,500	)		3.06
Outstanding at December 31, 2014		3,911,370		$	2.76		3.1	$	-
Exercisable at December 31, 2014		3,911,370		$	2.76		3.1	$	-

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

	Three months ended December 31, 2014		Three months ended December 31, 2013			Six months ended December 31, 2014		Six months ended December 31, 2013
General and administrative:
Fair value of stock issued to an employee	$	-		24,999		$	-		94,998
Change in fair value from modification of option terms		11,783		-			11,783		307,638
Fair value of stock options expensed/(credited)		4,000		(155,728	)		4,000		(87,517	)
Total	$	15,783	$	(130,729	)	$	15,783	$	315,119
Research and development:
Fair value of stock options credited	$	-	$	(153,587	)	$	-	$	(135,939	)
Total	$	-	$	(153,587	)	$	-	$	(135,939	)