Note 5 - Restricted Stock Activity Granted to Employees (Details) - Restricted Stock [Member]	9 Months Ended
	Mar. 31, 2016 $ / shares shares
Balance, Number of Shares, (in shares) | shares	72,589
Balance, Weighted Average Grant Date Fair Value, (in dollars per share) | $ / shares	$ 22.40
Vested, Number of Shares (in shares) | shares	(3,367)
Vested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 30.33
Forfeited, Number of Shares (in shares) | shares	(12,902)
Forfeited, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 41.26
Outstanding, Number of Shares, (in shares) | shares	56,320
Outstanding, Weighted Average Grant Date Fair Value, (in dollars per share) | $ / shares	$ 17.66