Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Sep. 30, 2015	Jun. 30, 2015
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	22,606,852	22,089,650
Common stock, shares outstanding	21,902,543	21,385,341
Common stock, par value (in Dollars per share)	$ 0	$ 0
Series B Preferred Stock [Member]
Par value (in Dollars per share)	$ 0.01	$ 0.01
Shares authorized	50,000	50,000
Shares issued	200	200
Shares outstanding	200	200
Liquidation preference (in Dollars per share)	$ 28,500	$ 28,000
Series A Preferred Stock [Member]
Par value (in Dollars per share)	$ 0.01	$ 0.01
Shares authorized	10,000	10,000
Shares issued	0	0
Shares outstanding	0	0
Series C Preferred Stock [Member]
Par value (in Dollars per share)	$ 0.01	$ 0.01
Shares authorized	60,000	60,000
Shares issued	0	0
Shares outstanding	0	0