Note 10 - Summary of Unvested Stock Options (Details)	6 Months Ended
	Dec. 31, 2015 $ / shares shares
Non-vested at (in shares) | shares	1,080,198
Non-vested at (in dollars per share) | $ / shares	$ 2.99
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares	1,016,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 3.63
Vested (in shares) | shares	(355,462)
Vested (in dollars per share) | $ / shares	$ 2.91
Forfeited (in shares) | shares	(30,050)
Forfeited (in dollars per share) | $ / shares	$ 3.30
Non-vested at (in shares) | shares	1,711,486
Non-vested at (in dollars per share) | $ / shares	$ 3.38