Annual report pursuant to section 13 and 15(d)

Non-Vested Shares (Detail)

v2.4.0.6
Non-Vested Shares (Detail) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Non-vested Shares    
Beginning Balance 737,020 670,355
Granted 54,250 224,250
Ending Balance 706,803 737,020
Weighted-Average Grant-Date Fair Value    
Granted $ 0.39 $ 2.24
Nonvested Shares
   
Non-vested Shares    
Beginning Balance 83,463  
Granted 54,250  
Vested (63,109)  
Forfeited (69,002)  
Ending Balance 5,602  
Weighted-Average Grant-Date Fair Value    
Beginning Balance $ 2.28  
Granted $ 0.39  
Vested $ 2.50  
Forfeited $ 0.69  
Ending Balance $ 0.99