Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	Mar. 31, 2013	Jun. 30, 2012
Common stock, shares authorized (in Shares) (in Shares)	100,000,000	100,000,000
Common stock, shares issued (in Shares) (in Shares)	17,436,618	16,814,103
Common stock, shares outstanding (in Shares) (in Shares)	16,732,309	16,109,794
Series B Preferred Stock [Member]
Par value (in Dollars per share)	0.01	0.01
Shares authorized (in Shares)	50,000	50,000
Shares issued (in Shares)	200	450
Shares outstanding (in Shares)	200	450
Liquidation preference (in Dollars per share)	23,500	49,500
Series A Preferred Stock [Member]
Par value (in Dollars per share)	0.01	0.01
Shares authorized (in Shares)	10,000	10,000
Shares issued (in Shares)	0	0
Shares outstanding (in Shares)	0	0
Series C Preferred Stock [Member]
Par value (in Dollars per share)	0.01	0.01
Shares authorized (in Shares)	60,000	60,000
Shares issued (in Shares)	0	300
Shares outstanding (in Shares)	0	300
Liquidation preference (in Dollars per share)	0	33,000