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Stock-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Unrecognized compensation expense is expected to be recognized
At March 31, 2019, the Company had unrecognized compensation expense of $2,970 related to granted but unvested stock awards, which is to be recognized as follows:
2020
 
$
1,873

2021
 
838

2022
 
258

2023
 
1

 
 
$
2,970
Summary of restricted stock activity
The following table summarizes restricted stock activity under the Plans from December 31, 2018 through March 31, 2019:
 
Number of
Shares
 
Weighted
Average
Unvested, December 31, 2018
1,027

 
$
9.83

Granted
10

 
$
2.90

Vested
(31
)
 
$
15.30

Forfeited
(18
)
 
$
6.38

Unvested, March 31, 2019
988

 
$
9.54