Note 7 - Summary of MSU Activity (Details)	3 Months Ended
	Sep. 30, 2015 $ / shares shares
Restricted Stock and Market Stock Units [Member]
Awarded, Shares (in shares)	2,500
Awarded (in dollars per share) | $ / shares	$ 2.49
Released, Shares (in shares)	(40,000)
Released (in dollars per share) | $ / shares	$ 2.45
Balance (in shares)	104,081
Balance (in dollars per share) | $ / shares	$ 3.20
Balance (in shares)	66,581
Balance (in dollars per share) | $ / shares	$ 3.63