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Consolidated Balance Sheets (Parentheticals) - $ / shares
Jun. 30, 2017
Jun. 30, 2016
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, authorized (in shares) 900,000,000 900,000,000
Common stock, issued (in shares) 886,753,847 886,753,847
Common stock, outstanding (in shares) 886,753,847 886,753,847
Series B Convertible Preferred Stock [Member]    
Convertible preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Convertible preferred stock, authorized (in shares) 50,000,000 50,000,000
Convertible preferred stock, issued (in shares) 13,108,474 13,108,474
Convertible preferred stock, outstanding (in shares) 13,108,474 13,108,474