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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Outstanding Restricted Stock Units
The following table presents RSUs activity during the nine months ended September 30, 2018:
 
Shares
 
Weighted Average Remaining Contractual Term
(in years)
Non-vested RSUs at December 31, 2017
728,909

 
2.2

Granted
592,500

 
2.5

Vested
(284,200
)
 
—

Forfeited
(20,900
)
 
—

Non-vested RSUs at September 30, 2018
1,016,309

 
2.0
Schedule of Outstanding Stock Appreciation Rights
The following table presents SARs activity during the six months ended September 30, 2018:
 
Shares
 
Weighted Average Exercise Price Per Share
 
Weighted Average Remaining Contractual Term
(in years)
Outstanding at December 31, 2017
690,000

 
$
7.20

 
4.3

SARs vested and exercisable at December 31, 2017
—

 
—

 
—

Granted
335,000

 
4.46

 
4.5

Exercised
—

 
—

 
—

Expired/forfeited
(15,000
)
 
—

 
—

Outstanding at September 30, 2018
1,010,000

 
$
6.30

 
3.8

SARs vested and exercisable at September 30, 2018
280,000

 
$
7.20

 
3.4