Note 8 - Restricted Stock Activity (Details) - Restricted Stock [Member] shares in Thousands	12 Months Ended
	Jun. 30, 2016 $ / shares shares
Number of shares, restricted stock outstanding, beginning balance (in shares) | shares	866
Weighted average initial value price per share, beginning balance (in dollars per share) | $ / shares	$ 0.48
Number of shares, issuance of restricted stock (in shares) | shares	160
Weighted average initial value price per share, issuance of restricted stock (in dollars per share) | $ / shares	$ 1.79
Number of shares, vesting (in shares) | shares	(250)
Weighted average initial value price per share, vesting (in dollars per share) | $ / shares	$ 0.52
Number of shares, forfeitures (in shares) | shares
Weighted average initial value price per share, forfeitures (in dollars per share) | $ / shares
Number of shares, restricted stock outstanding, ending balance (in shares) | shares	776
Weighted average initial value price per share, ending balance (in dollars per share) | $ / shares	$ 0.87