Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation (Details Textual)

v2.4.0.8
Share-Based Compensation (Details Textual) (USD $)
 12 Months Ended 2 Months Ended 12 Months Ended 1 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Aug. 12, 2008
Dec. 31, 2011
Option Modification [Member]
Jun. 30, 2013
Option Modification [Member]
Jun. 30, 2012
Option Modification [Member]
Jun. 30, 2013
Board Of Directors And Officers [Member]
Jun. 30, 2012
Board Of Directors And Officers [Member]
Jul. 31, 2012
Investor Relations Services [Member]
Oct. 31, 2011
Investor Relations Services [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 10,000,000   10,000,000              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares) 3,200,000                  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 1.02           $ 1.01 $ 1.90    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 0.90 $ 1.56                
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in Dollars) $ 2,000,000                  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 2 years 7 months 6 days                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 1,330,000           1,200,000 1,000,000    
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period             10 years      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value 2,500,000 700,000             33,000 71,000
Effect in Fair Value of Options Due to Modification of Option Agreement Terms       633,000            
Research and Development Expense 3,431,000 4,981,000     16,000 17,000        
General and Administrative Expense $ 4,243,000 $ 5,623,000     $ 49,000 $ 552,000        
Class of Warrants or Rights Granted                 100,000 100,000
Class of Warrant or Right, Exercise Price of Warrants or Rights 1.23 [1] 1.39             1.00 2.00
Class of Warrants or Rights Expiration Period                 2 years 2 years
[1] Includes the effect of reduction in exercise price for previously granted August 2008 warrants.