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STOCK-BASED COMPENSATION (Tables)
6 Months Ended
Jun. 29, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock- Based Compensation
A summary of award activity under the stock option plans as of June 29, 2013 and changes during the six month period is as follows (all options were vested as of June 29, 2013):
 
Six Months Ended June 29, 2013
 
Shares
 
Weighted
Average
Exercise
Price
Balance, December 29, 2012
983,680

 
$
5.26

Options forfeited/canceled
(130,346
)
 
5.60

Options exercised

 

Balance, all exercisable, June 29, 2013
853,334

 
$
5.21

Stock Options Outstanding and Exercisable
The following table summarizes information about stock options outstanding and exercisable at June 29, 2013:
 
Options Outstanding and Exercisable
Range of Exercise Prices
Number
Outstanding
and
Exercisable
 
Weighted
Average
Remaining
Contractual
Life (Years)
 
Weighted
Average
Exercise
Price
$ 0.01—$ 3.50
130,000

 
2.00
 
$
3.49

$ 3.75—$ 4.82
204,350

 
1.00
 
3.77

$ 5.00—$ 8.03
418,984

 
0.30
 
5.30

$10.00
100,000

 
1.00
 
10.00


853,334

 
0.81
 
$
5.21

Aggregate intrinsic value on June 29, 2013
$
29,050

 

 

NonVested Restricted Common Stock
A summary of the activity for non-vested restricted common stock awards as of June 29, 2013 and changes during the six month period is presented below:
 
Shares
 
Weighted
Average
Grant
Fair
Value
Balance, December 29, 2012
2,283,048

 
$
4.76

Granted
2,015,000

 
3.21

Forfeited
(177,000
)
 
4.02

Vested
(103,929
)
 
3.58

Balance, June 29, 2013
4,017,119

 
$
4.04

Stock-Based Compensation Expense
The following table summarizes stock-based compensation expense within each of the categories below as it relates to non-vested restricted common stock awards for the six months ended June 29, 2013 and June 30, 2012 (no tax benefits were recognized):
 
Six Months Ended
 
June 29,
2013
 
June 30,
2012
Cost of product revenues
$
118,692

 
$
178,483

Research and development
125,774

 
132,492

Selling, general and administrative
2,175,062

 
1,783,141

Total
$
2,419,528

 
$
2,094,116