Note 13 - Equity Transactions and Stock-based Compensation (Tables)

12 Months Ended

Jun. 30, 2015

Notes Tables

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

Risk Free Interest Rate	1.49%	to	1.99%
Volatility	93.9%	to	106.0%
Term (years)	5	to	10
Dividend Rate		0.00%
Closing Price of Common Stock		$0.09

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Fiscal Year Ended
	June 30,
	2015		2014
Anti-dilutive stock options		2,139,550		1,236,770
Anti-dilutive shares for convertible notes payable		-		8,230,769
Total anti-dilutive shares		2,139,550		9,467,539

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

				Weighted
				Average
				Exercise
	Options			Price
Outstanding as of July 1, 2013		2,798,838		$	5.72
Granted		-			-
Exercised		(25,000	)		0.14
Terminated		(73,000	)		2.31
Expired		(976,318	)		9.04
Outstanding as of June 30, 2014		1,724,520			4.07
Granted		2,248,000			0.09
Exercised		-			-
Terminated		(18,000	)		1.11
Expired		(881,570	)		6.36
Outstanding as of June 30, 2015		3,072,950		$	0.52
Exercisable at June 30, 2014		1,724,520		$	4.07
Exercisable at June 30, 2015		2,164,550		$	0.70

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

							Weighted
							Average
					Weighted		Remaining				Weighted
Range of					Average		Contractual				Average
Exercise Price			Outstanding		Exercise Price		Life (years)		Exercisable		Exercise Price
$0.09	-	$0.10		2,248,000	$	0.09		9.9		1,339,600	$	0.09
$0.14	-	$0.15		475,750		0.14		3.5		475,750		0.14
$3.05	-	$3.05		171,600		3.05		2.4		171,600		3.05
$3.13	-	$3.13		50,000		3.13		0.4		50,000		3.13
$3.36	-	$3.36		4,500		3.36		2.4		4,500		2.40
$3.86	-	$4.10		72,000		3.97		0.4		72,000		3.97
$6.80	-	$6.80		49,600		6.80		1.5		49,600		6.80
$7.48	-	$7.48		1,500		7.48		1.5		1,500		7.48
$0.09	-	$7.48		3,072,950	$	0.52		2.8		2,164,550	$	0.70