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Stockholders’ Equity and Earnings (Loss) per Share (Tables)
 3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Reconciliation of Numerators and Denominators of Basic and Diluted (Loss) Earnings Per Share
A reconciliation of the numerators and denominators of the basic and diluted losses per share computations is as follows:
 
Three Months Ended March 31,
(in thousands, except per share data)
2018
 
2017
Net loss (numerator):
$
(4,146
)
 
$
(6,269
)
Loss per share:
 
 
 
Basic and diluted
$
(0.11
)
 
$
(0.17
)
Shares (denominator):
 
 
 
Weighted average common shares outstanding - basic
38,124

 
37,546

Net effect of dilutive stock options, warrants and restricted stock units
—

 
—

Weighted average common shares outstanding - diluted
38,124

 
37,546