Note 7 - Director and Employee Stock Compensation Plans (Tables)

12 Months Ended

Jun. 30, 2015

Notes Tables

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

	Year Ended June 30	Year Ended June 30
	2015	2014
Average risk-free interest rate	2.19%	2.031%
Dividend yield	0 %	0 %
Expected life	10 years	5 years
Expected volatility	.52	.50
Weighted average fair value of granted options	$ 1.09	$ 0.51

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

	Options			Weighted-Average Exercise Price		Aggregate Intrinsic Value
Outstanding at July 1, 2014		3,311,745		$	0.83
Granted		36,000			1.72
Exercised		(2,028,920	)		0.79
Forfeited		(44,250	)		0.88
Expired	–			–
Outstanding at June 30, 2015		1,274,575		$	0.92	$	1,527,000
Exercisable at June 30, 2015		1,250,575		$	0.91	$	517,000
Weighted-average remaining contractual life	6.4 Years

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

Range of Exercise Prices				Options Outstanding		Weighted Average Exercise Prices of Options Outstanding		Weighted Average Remaining Contractual Life of Options Outstanding	Options Exercisable		Weighted Average Exercise Prices of Options Exercisable		Weighted Average Remaining Contractual Life of Options Exercisable
$	0.67	–	0.75		342,975	$	0.70	5.9 years		342,975	$	0.70	5.9 years
	0.76	–	1.00		744,100	$	0.89	6.9 years		744,100	$	0.89	6.9 years
	1.01	–	1.72		187,500	$	1.44	5.2 years		163,500	$	1.40	4.6 years
					1,274,575					1,250,575