v2.4.0.6
Stock Based Compensation (Tables)
6 Months Ended
Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of the status of the Company’s restricted share awards
 
 
Restricted Shares
 
Number of
Restricted Shares
   
Weighted Average
Fair Value at
Grant Date
 
Non-vested at  June 30, 2012
   
169,368
   
$
2.80
 
Stock Options [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted-average assumptions used to fair value calculation for options granted
 
 
   
Six Months Ended
   
Six Months Ended
 
   
June 30, 2012
   
June 30, 2011
 
Expected dividend yield
   
0
%
   
0
%
Expected stock price volatility
   
97-98
%
   
97-98
%
Risk-free interest rate
   
2.32-3.03
%
   
3.95-4.24
%
Expected life of warrants
 
7.8-9.9 years
   
8.8-9.9 years
 
 
 
Summary of the status of Company’s aggregate stock options granted
 

 
   
Number of Shares
Remaining
Options
   
Weighted
Average
Exercise Price
   
Weighted-Average
Remaining
Contractual Term
   
Aggregate
Intrinsic Value
 
                         
Outstanding at January 1, 2012
   
364,400
   
$
5.20
             
Options granted during 2012
   
175,000
   
$
2.04
             
Options cancelled/expired during 2012
   
(22,000)
     
5.76
                 
Outstanding at June 30, 2012
   
517,400
   
$
4.11
     
8.32
   
$
144,678
 
Exercisable at June 30, 2012
   
368,000
   
$
4.20
     
8.29
   
$
78,878