Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	Dec. 31, 2012	Jun. 30, 2012
Common stock, shares authorized (in Shares)	100,000,000	100,000,000
Common stock, shares issued (in Shares)	17,314,819	16,814,103
Common stock, shares outstanding (in Shares)	16,610,510	16,109,794
Series B Preferred Stock [Member]
Par value (in Dollars per share)	0.01	0.01
Shares authorized	50,000	50,000
Shares issued	200	450
Shares outstanding	200	450
Liquidation preference (in Dollars per share)	23,000	49,500
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	300	300
Shares outstanding	300	300
Liquidation preference (in Dollars per share)	34,500	33,000