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Restricted Stock Award Activity (Detail) (USD $)
12 Months Ended 3 Months Ended
Mar. 31, 2012
Jun. 30, 2012
Restricted Stock
Number of share    
Beginning Balance   15,367,000
Granted   583,000
Canceled 134,990   
Vested     
Ending Balance   15,950,000
Weighted average grant date fair value    
Beginning Balance   $ 0.36
Granted   $ 1.00
Canceled     
Vested     
Ending Balance   $ 0.387