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Net Loss Per Share
6 Months Ended
Jun. 30, 2011
Net Loss Per Share [Abstract]  
Earnings Per Share, Policy
Net Loss Per Share
 
Net loss per share is computed using the weighted average number of shares of common stock outstanding during the applicable period and excludes outstanding unvested restricted shares or units.  Shares associated with stock options, restricted stock units and warrants are not included because they are antidilutive.  There are no differences between basic and diluted net loss per share for all periods presented.