Quarterly report pursuant to Section 13 or 15(d)

Warrants (Tables)

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Warrants (Tables)
3 Months Ended
Mar. 31, 2013
Warrants Tables  
Common stock warrants

The following table summarizes information about common stock warrants outstanding at March 31, 2013:

 

Outstanding     Exercisable  
Exercise Price     Number Outstanding     Weighted Average Remaining Contractual Life (years)     Weighted Average Exercise Price     Number Exercisable     Weighted Average Exercise Price  
$ 9.90       7,955       0.41     $ 9.90       7,955     $ 9.90  
  9.90       4,773       0.50       9.90       4,773       9.90  
  3.30       11,364       3.12       3.30       11,364       3.30  
  1.00       24,000       3.57       1.00       24,000       1.00  
$ 1.00 - $9.90       48,092       2.64               48,092