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Stock and Stock- based Compensation (Tables)
12 Months Ended
Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Summary of Unvested Restricted Stock Units

The following table summarizes the activity for unvested restricted stock units for the years ended December 31, 2016 and 2015:

 

Units

 

 

Weighted
Average
Fair Value
Per RSU

 

Unvested restricted stock units at December 31, 2014

 

168,642

 

 

$

4.88

 

Awarded

 

231,356

 

 

$

3.47

 

Vested

 

(72,298)

 

 

$

4.44

 

Forfeited

 

(11,853)

 

 

$

4.55

 

Unvested restricted stock units at December 31, 2015

 

315,847

 

 

$

3.99

 

Awarded

 

31,327

 

 

$

2.81

 

Vested

 

(105,443)

 

 

$

4.66

 

Forfeited

 

(23,319)

 

 

$

5.12

 

Unvested restricted stock units at December 31, 2016

 

218,412

 

 

$

4.28