Quarterly report pursuant to sections 13 or 15(d)

Summary of Options Granted (Detail)

v2.4.0.8
Summary of Options Granted (Detail) (USD $)
3 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Number of Shares      
Exercisable 125    
Weighted Average Exercise Price      
Exercisable, December 31, 2013 $ 3.74    
2011 Equity Incentive Plan
     
Number of Shares      
Beginning Balance 1,005,000 933,000 60,000
Granted 1,625,000 121,000 873,000
Canceled         
Rescinded   (49,000)  
Forfeited (30,000)    
Exercised         
Ending Balance 2,600,000 1,005,000 933,000
Vested and expected to vest 1,847,000    
Exercisable 125,000    
Weighted Average Exercise Price      
Beginning Balance $ 4.27 $ 4.32 $ 4.65
Granted $ 2.66 $ 3.86 $ 4.31
Canceled         
Rescinded   $ 4.42  
Forfeited $ 4.50    
Exercised         
Ending Balance $ 3.26 $ 4.27 $ 4.32
Vested and expected to vest at December 31, 2013 $ 3.33    
Exercisable, December 31, 2013 $ 3.74