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Stock-Based Incentive Plan (Details) (USD $)
 12 Months Ended 12 Months Ended 106 Months Ended 1 Months Ended 12 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2012
Common Stock
Sep. 10, 2010
Common Stock
Sep. 08, 2009
Common Stock
Jun. 30, 2012
Stock Options and Incentive Warrants
Jun. 30, 2011
Stock Options and Incentive Warrants
Jun. 30, 2010
Stock Options and Incentive Warrants
Jun. 30, 2012
2003 Stock Plan
Stock Options
Jun. 30, 2012
2004 Stock Plan
Sep. 30, 2010
2004 Stock Plan
Common Stock
Sep. 30, 2009
2004 Stock Plan
Common Stock
Jun. 30, 2009
2004 Stock Plan
Stock Options
Jun. 30, 2012
Board of Directors Authorized, Outside of EMP Stock Plans
Incentive Warrants
Stock-Based Incentive Plan                            
Number of shares granted under the Plan                 600,000       591,090  
Number of shares of common stock authorized for issuance under plan                   6,500,000        
Number of shares remaining available for grant under plan                   1,012,111        
Number of Incentive Warrants issued (in shares)                           1,037,500
Number of shares of common stock issued for payment of bonuses                     106,927 138,224    
Value of shares of common stock issued for payment of bonuses $ 587,033 $ 370,440                 $ 587,033 $ 370,440    
Issue price of shares of common stock (in dollars per share)     $ 8.34 $ 5.49 $ 2.68                  
Non-cash stock-based compensation expense           $ 327,776 $ 715,027 $ 985,060            
Weighted average exercise price of shares granted (in dollars per share)                         $ 4.27  
Vesting period                         4 years  
Contractual life                         7 years  
Weighted average assumptions of Stock Options and the weighted average fair value of each option granted                            
Expected volatility (as a percent)                         87.10%  
Expected term (in years)                         4 years 7 months 6 days  
Risk-free rate (as a percent)                         3.10%  
Fair value (in dollars per share)                         $ 2.62