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Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Schedule of computation of basic and diluted earnings per share
Details in the computation of basic and diluted loss per share were as follows:
 
For the Twelve Months Ended December 31,
($ in thousands except share and per share data)
2015
 
2014
 
2013
Loss per share — Basic:
 
 
 

 
 

Numerator for basic loss per share
$
(34,453
)
 
$
(25,650
)
 
$
(31,554
)
Denominator for basic loss per share
42,178,397

 
40,789,445

 
29,830,207

Basic loss per common share
$
(0.82
)
 
$
(0.63
)
 
$
(1.06
)
Loss per share — Diluted:
 

 
 

 
 

Numerator for basic loss per share
$
(34,453
)
 
$
(25,650
)
 
$
(31,554
)
Adjust: Warrant revaluation income (expense) for dilutive warrants
1,529

 
2,840

 
2,270

Numerator for diluted loss per share
$
(35,982
)
 
$
(28,490
)
 
$
(33,824
)
 
 
 
 
 
 
Denominator for basic loss per share
42,178,397

 
40,789,445

 
29,830,207

Plus: Incremental shares underlying “in the money” warrants outstanding
172,949

 
179,954

 
366,409

Denominator for diluted loss per share
42,351,346

 
40,969,399

 
30,196,616

Diluted loss per common share
$
(0.85
)
 
$
(0.70
)
 
$
(1.12
)
Securities excluded from calculation of weighted-average shares outstanding
The following potentially dilutive securities have been excluded from the computations of diluted weighted average shares outstanding, as their effect would be anti-dilutive:
 
For the Twelve Months Ended December 31,
 
2015
 
2014
 
2013
Shares underlying “in the money” options outstanding
1,888,348

 
555,750

 
348,250

Shares underlying “out of the money” options outstanding
1,173,590

 
1,700,272

 
820,047

Shares underlying “in the money” warrants outstanding
897,244

 
300,425

 
334,175

Shares underlying “out of the money” warrants outstanding
4,721,408

 
4,831,352

 
4,834,852