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

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

30-Sep-2012

 

30-Sep-2011

 

30-Sep-2012

 

30-Sep-2011

 

Cost of sales

 

$

 

$

 

$

 

$

 

Selling, general & administrative expense

 

182,286

 

228,647

 

679,340

 

860,006

 

Total share-based compensation expense

 

$

182,286

 

$

228,647

 

$

679,340

 

$

860,006

 

 

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

 

(139,579

)

3.51

 

 

 

Cancelled or expired

 

(11,250

)

9.09

 

 

 

Outstanding at September 30, 2012

 

495,462

 

$

5.48

 

$

5,999,199

 

Options exercisable at September 30, 2012

 

462,962

 

$

5.11

 

$

5,774,249

 

Vested and expected to vest at September 30, 2012

 

495,462

 

$

5.48

 

$

5,999,199

 

 

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

 

Unvested at December 31, 2011

 

176,209

 

$

 6.98

 

Awarded

 

13,553

 

15.62

 

Shares vested

 

(80,896

)

5.96

 

Forfeited / cancelled

 

 

 

Unvested at September 30, 2012

 

108,866

 

$

8.77