Note 5 - Option Activity For Stock Option Plans (Details) - Employee Stock Option [Member]	9 Months Ended
	Mar. 31, 2016 $ / shares shares
Outstanding at, (in shares) | shares	147,609
Outstanding at, (in dollars per share) | $ / shares	$ 25.51
Granted (in shares) | shares	44,075
Granted (in dollars per share) | $ / shares	$ 11.37
Forfeited (in shares) | shares	(75,981)
Forfeited (in dollars per share) | $ / shares	$ 26.44
Expired (in shares) | shares	(5,251)
Expired (in dollars per share) | $ / shares	$ 41.47
Outstanding at, (in shares) | shares	110,452
Outstanding at, (in dollars per share) | $ / shares	$ 18.47
Outstanding at,	5 years 292 days
Vested and Expected to Vest at March 31, 2016 (in shares) | shares	96,809
Vested and Expected to Vest at March 31, 2016 (in dollars per share) | $ / shares	$ 19.21
Vested and Expected to Vest at March 31, 2016	5 years 255 days
Exercisable at March 31, 2016 (in shares) | shares	61,443
Exercisable at March 31, 2016 (in dollars per share) | $ / shares	$ 22.12
Exercisable at March 31, 2016	5 years 146 days