Note 12 - Equity Transactions and Stock-based Compensation (Tables)

12 Months Ended

Jun. 30, 2017

Notes Tables

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

Risk Free Interest Rate	0.44%		to	2.34%
Volatility	66.9%		to	112.3%
Term	3 months		to	10 years
Dividend Rate			0.00%
Closing Price of Common Stock		$	0.23

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

	Fiscal Year Ended
	June 30,
	2017		2016
Anti-dilutive shares for stock options		313,100		694,950
Anti-diluative shares for convertible note		-		8,230,769
Total anti-dilutive shares		313,100		8,925,719

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

				Weighted
				Average
				Exercise
	Options			Price
Outstanding as of July 1, 2015		3,072,950		$	0.52
Granted		-			-
Exercised		-			-
Terminated		(80,000	)		0.17
Expired		(122,000	)		3.63
Outstanding as of June 30, 2016		2,870,950			0.40
Granted		200,000			0.24
Exercised		(30,000	)		0.09
Terminated		(271,667	)		0.24
Expired		(51,100	)		6.82
Outstanding as of June 30, 2017		2,718,183		$	0.29
Exercisable at June 30, 2016		2,383,617		$	0.46
Exercisable at June 30, 2017		2,506,683		$	0.30

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

					Weighted
				Weighted	Average		Weighted
				Average	Remaining		Average
Range of				Exercise	Contractual		Exercise
Exercise Price			Outstanding	Price	Life (years)	Exercisable	Price
$0.09	-	$0.10	1,956,333	$ 0.09	7.8	1,744,833	$ 0.09
$0.14	-	$0.15	448,750	0.14	1.5	448,750	0.14
$0.23	-	$0.25	150,000	0.24	9.4	150,000	0.24
$3.05	-	$3.05	158,600	3.05	0.4	158,600	3.05
$3.36	-	$3.36	4,500	3.36	0.4	4,500	3.36
$0.09	-	$3.36	2,718,183	$ 0.29	5.6	2,506,683	$ 0.30