Note 7 - Stockholders' Equity: (Tables)

9 Months Ended

Mar. 31, 2013

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

	Weighted average, March 31, 2013			Range, March 31, 2013			Weighted average, March 31, 2012			Range, March 31, 2012
Volatility		66	%	60%	-	68%		83	%	61%	-	88%
Dividend yield		-			-			-			-
Risk-free interest rate		0.32	%	0.31%	-	0.34%		1.31	%	0.25%	-	2.02%
Expected term (years)		3.05		2.66	-	3.25		4.02		2	-	4.5

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, 2012		5,111,145		2.86		4.6		274,200
Granted		150,000		2.10
Exercised		-		-
Forfeited		-		-
Expired		-		-
Outstanding at March 31, 2013		5,261,145	$	2.84		3.9	$	168,750
Exercisable at March 31, 2013		4,936,145	$	2.85		3.8	$	168,750

Schedule of Nonvested Share Activity [Table Text Block]

	Options			Weighted Average Grant-Date Fair Value
Nonvested at July 1, 2012		590,000		$	1.83
Granted		150,000			0.83
Vested		(415,000	)		(1.44	)
Forfeited		-			-
Nonvested at March 31, 2013		325,000		$	1.86

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

	Three months ended March 31, 2013		Three months ended March 31, 2012		Nine months ended March 31, 2013		Nine months ended March 31, 2012
General and administrative:
Fair value of stock/warrant bonuses expensed	$	-	$	-	$	1,151,250	$	1,035,300
Fair value of stock issued to an employee		24,999		24,999		74,997		74,997
Change in fair value from modification of option terms		-		-		-		94,820
Fair value of stock options expensed		44,889		199,988		379,973		2,365,676
Total	$	69,888	$	224,987	$	1,606,220	$	3,570,793
Research and development:
Fair value of stock options expensed	$	7,801	$	9,653	$	25,826	$	50,251
Total	$	7,801	$	9,653	$	25,826	$	50,251