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

12 Months Ended

Jun. 30, 2018

Notes Tables

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

	Fiscal Year Ended
	June 30,
	2018		2017
Anti-dilutive shares for stock options		150,000		313,100
Anti-dilutive shares for convertible note		-		-
Total anti-dilutive shares		150,000		313,100

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

				Weighted
				Average
				Exercise
	Options			Price
Outstanding as of July 1, 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
Granted		-			-
Exercised		-			-
Terminated		(118,333	)		0.15
Expired		(160,600	)		3.06
Outstanding as of June 30, 2018		2,439,250		$	0.11
Exercisable at June 30, 2017		2,506,683		$	0.30
Exercisable at June 30, 2018		2,439,250		$	0.11

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		1,846,000	$	0.09		6.8		1,846,000	$	0.09
$	0.14	-	$	0.15		443,250		0.14		0.5		443,250		0.14
$	0.23	-	$	0.25		150,000		0.24		8.4		150,000		0.24
$	0.09	-	$	0.25		2,439,250	$	0.11		5.6		2,439,250	$	0.11