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Net Loss Per Common Share (Tables)
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Schedule of net loss attributable to common shareholders and share data used in the basic and diluted earnings per share computations using the two class method
The following reflects the net loss attributable to common shareholders and share data used in the basic and diluted earnings per share computations using the two class method: 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(Amounts in thousands except per share amounts)
2018
 
2017
 
2018
 
2017
Numerator:
 

 
 

 
 

 
 

Net loss
$
(4,651
)
 
$
(2,388
)
 
$
(12,310
)
 
$
(12,166
)
Denominator for basic and diluted EPS:
 

 
 

 
 
 
 

Weighted-average common shares outstanding
38,349

 
32,765

 
37,251

 
32,333

Net loss per share attributable to common shareholders (basic and diluted)
$
(0.12
)
 
$
(0.07
)
 
$
(0.33
)
 
$
(0.38
)