Annual report pursuant to Section 13 and 15(d)

Net Loss Per Common Share (Details 1)

v2.4.0.6
Net Loss Per Common Share (Details 1)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Computations of diluted weighted average shares outstanding      
Total of weighted average shares outstanding 3,371,161 10,206,543 3,498,114
Series A [Member]
     
Computations of diluted weighted average shares outstanding      
Total of weighted average shares outstanding    3,796,733 2,617,242
Series B [Member]
     
Computations of diluted weighted average shares outstanding      
Total of weighted average shares outstanding    2,158,935  
Series C [Member]
     
Computations of diluted weighted average shares outstanding      
Total of weighted average shares outstanding    1,966,635  
Unvested restricted Common stock [Member]
     
Computations of diluted weighted average shares outstanding      
Total of weighted average shares outstanding      322,900
Warrants to purchase Common stock [Member]
     
Computations of diluted weighted average shares outstanding      
Total of weighted average shares outstanding 1,091,558 804,949 261,860
Options to purchase Common Stock [Member]
     
Computations of diluted weighted average shares outstanding      
Total of weighted average shares outstanding 2,279,603 1,479,291 296,112