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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of significant assumptions
The significant assumptions used in the Monte Carlo simulation are presented in the following table.
 
Years ended December 31,
 
2018
 
2017
Expected volatility
67.13
%
 
59.48
%
Expected life (years)
2.67

 
2.75

Risk-free interest rate
2.55
%
 
1.49
%
Unrecognized compensation expense is expected to be recognized
At December 31, 2018, the Company had unrecognized compensation expense of $5,782 related to granted but unvested stock awards. That expense is expected to be recognized as follows:
Year Ended December 31,
 
2019
$
2,772

2020
1,896

2021
854

2022
260

 
$
5,782
Summary of restricted stock activity
The following table summarizes restricted stock activity under the Plans from January 1, 2017 through December 31, 2018:
 
Number of
Shares
 
Weighted
Average
Unvested, January 1, 2017
274

 
$
7.35

Granted
352

 
$
14.77

Vested
(90
)
 
$
8.01

Forfeiture
(2
)
 
$
8.94

Unvested, December 31, 2017
534

 
$
11.27

Granted
746

 
$
6.61

Vested
(177
)
 
$
12.15

Forfeiture
(76
)
 
$
11.56

Unvested December 31, 2018
1,027

 
$
9.83