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Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The calculation of the bonus element gave rise to the following adjustments to the weighted average number of common shares and loss per common share for the year ended December 31, 2015:

 
Year ended December 31,
 
 
2015
 
 
 
(in thousands, except per share )
 
 
 
 
Weighted average number of common shares, as reported
 
9,291

 
Adjustment
 
1,458

 
Weighted average number of common shares, as adjusted
 
10,749

 
 
 

 
Loss per common share, as reported
 
$
(4.00
)
 
Adjustment
 
$
0.58

 
Loss per common shares, as adjusted
 
$
(3.42
)