Note 5 - Changes in Paid in Capital (Details) $ in Thousands	9 Months Ended
	Mar. 31, 2016 USD ($)
Private Placement [Member]
Issuance of common shares and warrants in private placement	$ 2,462
Series B Warrant [Member]
Issuance of common shares for exercise of Series B Warrants	1,092
Balance	172,579
Discount due to beneficial conversion features	7,262
Discount due to warrants	4,434
Stock-based compensation expense, net of stock surrenders	546
Shares issued and adjustments related to reverse split	5
Balance	$ 188,380