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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Unrecognized compensation expense is expected to be recognized
At September 30, 2018, the Company had unrecognized compensation expense of $6,040 related to granted but unvested stock awards, which is to be recognized as follows:
2019
 
$
2,900

2020
 
1,980

2021
 
891

2022
 
269

 
 
$
6,040
Summary of restricted stock activity
The following table summarizes restricted stock activity under the Plans from December 31, 2017 through September 30, 2018:
 
Number of
Shares
 
Weighted
Average
Unvested, December 31, 2017
534

 
$
11.27

Granted
742

 
$
6.61

Vested
(177
)
 
$
(12.15
)
Forfeited
(37
)
 
$
(12.64
)
Unvested, September 30, 2018
1,062

 
$
9.86