Note 8 - Option Activity For Stock Option Plans (Details) - $ / shares	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Employee Stock Option [Member]
Outstanding at, (in shares)	147,609
Outstanding at, (in dollars per share)	$ 25.51
Granted (in shares)	55,875
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 9.64
Forfeited/cancelled (in shares)	(93,855)
Forfeited/cancelled (in dollars per share)	$ 27.02
Expired (in shares)	(5,251)
Expired (in dollars per share)	$ 41.47
Outstanding at, (in shares)	104,378	147,609
Outstanding at, (in dollars per share)	$ 14.85	$ 25.51
Outstanding at,	5 years 292 days
Vested and Expected to Vest at June 30, 2016 (in shares)	91,810
Vested and Expected to Vest at June 30, 2016 (in dollars per share)	$ 15.34
Vested and Expected to Vest at June 30, 2016	5 years 255 days
Exercisable at June 30, 2016 (in shares)	61,271
Exercisable at June 30, 2016 (in dollars per share)	$ 16.15
Exercisable at June 30, 2016	5 years 182 days
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 5.75	$ 12.40