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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
A summary of the Company's restricted stock unit activity as of September 30, 2017 is as follows:
 
Restricted Stock Units
 
Share Price at Grant Date
Outstanding at December 31, 2016
1,646,523

 
(a)
Restricted stock units granted in 2017
35,829

 
$3.14
Restricted stock units granted in 2017
1,964,442

 
3.29
Restricted stock units vested, granted in 2015
(25,498
)
 
4.00
Restricted stock units vested, granted in 2016
(191,009
)
 
3.14
Restricted stock units vested, granted in 2017
(11,824
)
 
3.14
Restricted stock units vested, granted in 2017
(87,677
)
 
3.29
Restricted stock units forfeited, granted in 2015
(10,643
)
 
4.00
Restricted stock units forfeited, granted in 2016
(67,694
)
 
3.14
Restricted stock units forfeited, granted in 2017
(7,929
)
 
3.29
Outstanding at September 30, 2017
3,244,520

 
(a)

(a)
The weighted average grant date price per share of common stock underlying the unvested restricted stock units based on total outstanding restricted stock units as of September 30, 2017 and December 31, 2016 was $3.29.