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Net Income (Loss) per Share of Common Stock (Tables)
 3 Months Ended
Mar. 31, 2019
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The following table sets forth the computation of basic and diluted loss per share:
 
 
Three months ended March 31,
(dollars in thousands, except earnings per share)
 
2019
 
2018
Numerator for earnings per share:
 
 
 
 
Net loss that is available to common shareholders
 
$
(4,542
)
 
$
(2,961
)
 
 
 
 
 
Denominator for basic earnings per share:
 
 
 
 
Weighted average shares outstanding
 
22,262,565

 
22,086,640

 
 
 
 
 
Denominator for diluted earnings per share:
 
 
 
 
Effect of stock options and restricted stock units
 
—

 
—

Adjusted weighted average shares and assumed conversions
 
22,262,565

 
22,086,640

 
 
 
 
 
Basic loss per share
 
$
(0.20
)
 
$
(0.13
)
 
 
 
 
 
Diluted loss per share
 
$
(0.20
)
 
$
(0.13
)
 
 
 
 
 
Anti-dilutive shares excluded from computation of diluted loss per share
 
1,483,470

 
1,167,398