Note 2 - Calculation for Basic and Diluted Earnings Per Share (Details) - shares	12 Months Ended
	Jun. 30, 2016		Jun. 30, 2015
Convertible Debt Securities [Member]
Common stock equivalents of convertible debentures (in shares)	3,676,471
Vested Series A warrants [Member]
Common stock equivalents of convertible debentures (in shares)	404,412
Unvested Series A warrants [Member]
Common stock equivalents of convertible debentures (in shares)	698,529	[1]
Warrant, Other [Member]
Common stock equivalents of convertible debentures (in shares)	3,725,782		252,620
Employee Stock Option [Member]
Common stock equivalents of convertible debentures (in shares)	104,378		147,609
Restricted Stock Units (RSUs) [Member]
Common stock equivalents of convertible debentures (in shares)	63,566		72,589
Common stock equivalents of convertible debentures (in shares)	8,673,138		472,818

[1] The unvested Series A warrants were subject to vesting based upon the amount of funds actually received by the Company in the second close of the August 2015 financing which never occurred. The warrants will remain outstanding but unvested until they expire in February 2021.