XML 27 R43.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Activity for Nonvested Restricted Common Stock Awards (Detail) (Nonvested restricted common stock, USD $)
6 Months Ended
Jun. 30, 2012
Nonvested restricted common stock
 
Shares  
Beginning Balance 2,897,682
Granted 85,000
Forfeited (16,219)
Vested (78,000)
Ending Balance 2,888,463
Weighted Average Grant Fair Value  
Beginning Balance $ 4.20
Granted $ 3.60
Forfeited $ 4.38
Vested $ 3.54
Ending Balance $ 4.20