Note 8 - Stockholders' Equity: (Tables)

12 Months Ended

Jun. 30, 2013

Stockholders' Equity Note [Abstract]

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

	Weighted average, June 30, 2013			Range, June 30, 2013			Weighted average, June 30, 2012			Range, June 30, 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, 2011		3,636,145	$	2.83		3.8	$	478,375
Granted		1,475,000		2.97
Exercised		-		-
Forfeited		-		-
Expired		-		-
Outstanding at June 30, 2012		5,111,145		2.86		4.6		274,200
Granted		150,000		2.10
Exercised		-		-
Forfeited		-		-
Expired		-		-
Outstanding at June 30, 2013		5,261,145	$	2.84		4.0	$	168,750
Exercisable at June 30, 2013		4,936,145	$	2.85		3.9	$	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 June 30, 2013		325,000		$	1.86

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

	Year ended June 30, 2013		Year ended June 30, 2012
General and administrative:
Fair value of stock/warrant bonuses expensed	$	1,159,575	$	1,035,300
Fair value of stock issued to an employee		99,996		99,996
Change in fair value from modification of option terms		2,496,700		94,820
Fair value of stock options expensed		416,804		2,485,782
Total	$	4,173,075	$	3,715,898
Research and development:
Fair value of stock options expensed	$	38,276	$	50,251
Total	$	38,276	$	50,251