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STOCK-BASED COMPENSATION (Tables)
6 Months Ended
Jun. 30, 2015
STOCK-BASED COMPENSATION  
Schedule of assumptions used to estimate the fair values of the stock options granted

 

 

Three Months
Ended

 

 

 

March 31, 2015

 

Risk-free interest rate

 

1.8 

%

Expected volatility

 

68.4 

%

Expected life (in years)

 

6.9 

 

Forfeiture rate

 

5.0 

%

Dividend yield

 

 

Weighted-average estimated fair value of options granted during the period

 

$

0.99 

 

 

Summary of stock options activity

 

 

Options Outstanding

 

 

 

Number
of
Shares

 

Weighted—
Average
Exercise
Price

 

Weighted—
Average
Remaining
Contractual
Term
(in years)

 

Weighted—
Average
Grant—Date
Fair Value

 

Aggregate
Intrinsic
Value(1)

 

Balance at December 31, 2014

 

 

$

 

 

$

 

$

 

Options granted

 

1,964,665

 

$

1.52

 

 

$

0.99

 

$

(648

)

Exercised

 

 

$

 

 

$

 

$

 

Canceled/forfeited

 

 

$

 

 

$

 

$

 

Balance at June 30, 2015

 

1,964,665

 

$

1.52

 

9.61

 

$

0.99

 

$

 

Vested and exercisable as of June 30, 2015

 

 

$

 

 

$

 

$

 

Vested and exercisable as of June 30, 2015 and expected to vest thereafter

 

1,811,132

 

$

1.52

 

9.61

 

$

0.99

 

$

(598

)

 


(1) The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the closing stock price of $1.19 of the Company’s common stock on June 30, 2015.

Summary of restricted common stock activity

 

 

 

 

Unvested
Restricted Shares

 

 

 

Number of
Shares

 

Weighted—
Average
Grant—Date
Fair Value

 

Unvested at December 31, 2014

 

7,379

 

$

 

Granted

 

184,761

 

$

 

Vested

 

(36,967

)

$

1.92

 

Canceled

 

 

$

 

Unvested at June 30, 2015

 

155,173

 

$

 

Expected to vest after June 30, 2015

 

155,173

 

$

 

 

Schedule of stock-based compensation expense

 

 

 

 

Three Months Ended
June 30,

 

Six Months Ended
June 30,

 

 

 

2015

 

2014

 

2015

 

2014

 

Cost of sales

 

$

 

$

 

$

 

$

 

Selling, general and administrative expense

 

$

222 

 

$

88 

 

$

375 

 

$

701 

 

Research and development expense

 

$

 

$

 

$

 

$

 

Total stock-based compensation expense

 

$

222 

 

$

88 

 

$

375 

 

$

701 

 

Total option exercise recognized tax benefit

 

$

 

$

 

$

 

$