Note 7. Stockholders' Equity (Tables)

12 Months Ended

Jun. 30, 2012

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

	Weighted average, June 30, 2012			Range, June 30, 2012					Weighted average, June 30, 2011			Range, June 30, 2011
Volatility		83	%		61%	-	88	%		90	%		84%	-	105	%
Dividend yield		-				-				-				-
Risk-free interest rate		1.31	%		.25%	-	2.02	%		1.03	%		.72%	-	2.02	%
Expected term (years)		4.02			2	-	4.5			3.49			2	-	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, 2010		2,270,833		$	2.85		3.4	$	81,250
Granted		2,045,000			2.91
Exercised		-			-
Forfeited		(679,688	)		3.10
Expired		-			-
Outstanding at June 30, 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
Exercisable at June 30, 2012		4,521,145		$	2.88		4.4	$	274,200

Schedule of Nonvested Share Activity [Table Text Block]

	Options			Weighted Average Grant-Date Fair Value
Nonvested at July 1, 2011		687,500		$	1.74
Granted		1,475,000			1.57
Vested		(1,572,500	)		(1.54	)
Forfeited		-			-
Nonvested at June 30, 2012		590,000		$	1.83

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

	Year ended June 30, 2012		Year ended June 30, 2011
General and administrative:
Fair value of stock bonuses expensed	$	1,035,300	$	684,867
Fair value of stock issued to an employee		99,996		-
Change in fair value from modification of option terms		94,820		954,703
Fair value of stock options expensed		2,485,782		1,830,512
Total	$	3,715,898	$	3,470,082
Research and development:
Change in fair value from modification of option terms	$	-	$	200,200
Fair value of stock options expensed		50,251		268,117
Total	$	50,251	$	468,317