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Share-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2012
Share-Based Compensation  
Schedule of the compensation cost charged against income for plans

 

 

 

 

Three Months Ended

 

Six Months Ended

 

 

 

30-Jun-2012

 

30-Jun-2011

 

30-Jun-2012

 

30-Jun-2011

 

Cost of sales

 

$

 

$

 

$

 

$

 

Selling, general & administrative expense

 

310,153

 

382,022

 

497,054

 

631,357

 

Total share-based compensation expense

 

$

310,153

 

$

382,022

 

$

497,054

 

$

631,357

 

Summary of stock option activity under all plans

 

 

 

 

Shares Under
Options

 

Weighted
Average
Exercise Price

 

Aggregate
Intrinsic Value

 

Outstanding at December 31, 2011

 

638,521

 

$

4.98

 

 

 

Granted

 

7,770

 

16.32

 

 

 

Exercised

 

(118,870

)

2.69

 

 

 

Cancelled or expired

 

(11,250

)

9.09

 

 

 

Outstanding at June 30, 2012

 

516,171

 

$

5.59

 

$

7,870,369

 

Options exercisable at June 30, 2012

 

479,921

 

$

5.18

 

$

7,434,216

 

Vested and expected to vest at June 30, 2012

 

516,171

 

$

5.59

 

$

7,870,369

Schedule of assumptions used to determine the intrinsic fair market value of options using Black Scholes option pricing model

 

 

Expected volatility

56%

Expected dividends

none

Risk free interest rate

0.39%

Expected term

5 years

Summary of Restricted Stock Units ( RSUs ) activity

 

 

 

 

Restricted Stock
Units

 

Weighted Average
Award Date
Fair Value

 

Outstanding at December 31, 2011

 

176,209

 

$

6.98

 

Awarded

 

13,553

 

15.62

 

Shares vested

 

(80,896

)

5.96

 

Forfeited / cancelled

 

 

 

Outstanding at June 30, 2012

 

108,866

 

$

8.77