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Stock Incentive Plans and Warrants (Tables)
 12 Months Ended
Dec. 31, 2012
Stock Incentive Plans and Warrants [Abstract]  
Summary of all stock option activity
The following table summarizes all stock option activity for the year ended December 31, 2012:
 
 
 
Number of
Shares
 
 
 
Exercise Price
 
Weighted
Average
Exercise Price
Weighted Average Remaining Contractual Term (in Years)
 
Aggregate
Intrinsic
Value
 
Outstanding, December 31, 2011
2,665,562
 
$0.90 - $24.63
$
13.90
4.63
$
596,136
      Granted
-
                 -
-
      Exercised
(40,000
)
 
$0.90 - $5.05
$
1.70
      Cancelled
(259,194
)
 
$9.15 - $16.53
$
14.64
Outstanding, December 31, 2012
2,366,368
 
$4.08 - $24.63
$
14.02
 
Exercisable, December 31, 2012
2,366,368
 
$4.08 - $24.63
$
14.02
3.73
$
263,652
Vested and expected to vest at December 31, 2012
2,366,368
$
14.02
3.73
$
263,652
Available for future issuances under the plans as of December 31, 2012
62,589
Summary of information about stock options
The following table summarizes information about stock options outstanding as of December 31, 2012:
Options Outstanding
  
Options Exercisable
 
 
 
Range of Exercise
Prices
  
 
 
Options
Outstanding
  
Weighted
Average
Remaining
Contractual Life
  
 
Weighted
Average
Exercise Price
  
 
 
Options
Exercisable
  
 
Weighted
Average
Exercise Price
 
 
$4.08 - $10.72
   
253,376
   
5.39
  
$
8.17
   
253,376
  
$
8.17
 
 
$13.31 - $13.31
   
1,222,500
   
5.10
   
13.31
   
1,222,500
   
13.31
 
 
$13.66 - $24.63
   
890,492
   
1.38
   
16.67
   
890,492
   
16.67
 
 
$4.08 - $24.63
   
2,366,368
   
3.73
  
$
14.02
   
2,366,368
  
$
14.02
 
Summary of SARs activity
The following table summarizes the SARs activity for the year ended December 31, 2012:
 
 
 
 
 
 
Number of
Shares
  
 
 
Weighted
Average
Conversion Price
  
 
Weighted Average Remaining Contractual Term (in Years)
  
 
 
 
Aggregate
Intrinsic
Value
 
 
 
  
  
  
 
Outstanding, December 31, 2011
  
248,239
  
$
6.34
   
1.17
  
$
734,728
 
      Granted
  
-
   
-
         
      Converted
  
(164,317
)
  
6.79
         
      Cancelled/Expired
  
(15,263
)
  
6.97
         
Outstanding, December 31, 2012
  
68,659
  
$
5.12
   
0.87
  
$
280,506
 
 
                
Vested, December 31, 2012
  
-
   
-
   
-
  
$
-
 
 
SARs Outstanding
 
 
Range of
Conversion Prices
 
 
SARs
Outstanding
Weighted
 Average
Remaining
 Contractual Life
Weighted
Average
Conversion
 Price
$5.03 - $5.03
5,333
0.92
$
                                5.03
$5.13 - $5.60
63,326
0.86
5.13
$5.03 - $5.60
68,659
0.87
$
                             5.12
Summary of RSA activity
The following table summarizes the RSAs activity for the year ended December 31, 2012:
 
 
 
Number of
Shares
  
Weighted Average Grant Date Fair Value
 
Nonvested, December 31, 2011
  
700,499
  
$
9.70
 
   Granted
  
393,000
   
8.97
 
   Vested
  
(176,813
)
  
10.00
 
   Cancelled
  
(64,750
)
  
9.70
 
Nonvested, December 31, 2012
  
851,936
  
$
9.30
 
Summary of RSUs activity
The following table summarizes the RSUs activity for the year ended December 31, 2012:
 
 
 
 
Number of
Shares
  
Weighted Average
Grant Date Fair
Value
 
Nonvested, December 31, 2011
  
45,000
  
$
10.05
 
   Granted
  
-
   
-
 
   Vested
  
(11,250
)
  
10.05
 
   Cancelled
  
-
   
-
 
Nonvested, December 31, 2012
  
33,750
  $
10.05
 
Reserved shares of common stock
At December 31, 2012, we have reserved shares of our common stock for the following:
Stock incentive plans
  
2,468,777
 
Employee 401(k) plan
  
463,531
 
Total
  
2,932,308
 
Restricted Stock Units [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation cost, nonvested awards
The following table summarizes the RSA grant and unamortized compensation expense for the years ended December 2012, 2011, and 2010.  All restricted common stock awards vest over a four year period with one-quarter vesting on each of the next four anniversaries of the date of grant.  The related compensation expense is being recognized over the four-year period on a straight-line basis.
 
 
 
 
 
 
Number of restricted common stock
granted
 
 
 
 
Unamortized stock-based compensation at December 31, 2012
 (in millions)
 
 
Weighted average period for recognition of unamortized compensation as of December 31, 2012
 (in years)
 
As of December 31, 2012
 
 
393,000
 
 
$
3.8
 
 
 
2.4
 
As of December 31, 2011
 
 
470,250
 
 
$
2.5
 
 
 
1.8
 
As of December 31, 2010
 
 
307,000
 
 
$
1.7
 
 
 
1.5
 
Restricted Stock Awards [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation cost, nonvested awards
The following table summarizes the RSU grant and unamortized compensation expense for the years ended December 2012, 2011, and 2010.  All restricted common stock units vest over a four year period with one-quarter vesting on each of the next four anniversaries of the date of grant.  The related compensation expense is being recognized over the four-year period on a straight-line basis.
 
 
 
 
 
 
Number of restricted common stock
granted
 
 
 
 
 
 
Unamortized stock-based compensation at December 31, 2012
(in millions)
 
 
 
Weighted average period for recognition of unamortized compensation as of December 31, 2012
(in years)
 
As of December 31, 2012
 
 
-
 
 
$
-
 
 
 
-
 
As of December 31, 2011
 
 
45,000
 
 
$
0.3
 
 
 
1.7
 
As of December 31, 2010
 
 
-
 
 
$
-
 
 
 
-