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Weighted Average Common Shares
12 Months Ended
Dec. 31, 2014
Weighted Average Common Shares [Abstract]  
Weighted Average Common Shares

12.  Weighted Average Common Shares

 

 

 

 

 

 

 

 

 

At December 31,

 

 

2014

 

2013

 

 

 

 

 

Basic common shares

 

82,294,331 

 

81,813,386 

Diluted common shares

 

82,294,331 

 

81,813,386 

 

Stock options to purchase 2,257,500 and 2,882,500 common shares, unvested RSUs representing 3,692,829 and 2,594,464 common shares, and warrants to purchase 15,219,802 and 19,977,743 common shares were outstanding at December 31, 2014 and 2013, respectively, but were not included in the computation of diluted weighted average common shares outstanding because their effect would have been anti-dilutive.