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Loss Per Share (Tables)
 6 Months Ended
Jun. 30, 2019
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
Details in the computation of basic and diluted income (loss) per share is as follows:
 
Three months ended June 30,
 
Six months ended  June 30,
($ in thousands except share and per share data)
2019
 
2018
 
2019
 
2018
Income (loss) per share - basic:
 
 
 
 
 
 
 
Net income (loss)
$
11,743

 
$
(2,894
)
 
$
8,077

 
$
(5,795
)
Less: Dividend paid in-kind to preferred stockholders
(86
)
 
(83
)
 
(171
)
 
(165
)
Less: Deemed dividend on preferred stock
(145
)
 
(126
)
 
(285
)
 
(247
)
Net income (loss) attributable to common stockholders - basic
$
11,512

 
$
(3,103
)
 
$
7,621

 
$
(6,207
)
 
 
 
 
 
 
 
 
Numerator for basic income (loss) per share
$
11,512

 
$
(3,103
)
 
$
7,621

 
$
(6,207
)
Denominator for basic income (loss) per share
9,758,332

 
6,376,048

 
9,758,332

 
6,026,454

Basic income (loss) per common share
$
1.18

 
$
(0.49
)
 
$
0.78

 
$
(1.03
)
 
 
 
 
 
 
 
 
Income (loss) per share - diluted:
 
 
 
 
 

 
 

Numerator for basic income (loss) per share
$
11,512

 
$
(3,103
)
 
$
7,621

 
$
(6,207
)
Adjust: Interest and derivative revaluation expense related to convertible notes
1,338

 
—

 
—

 
—

Adjust: Paid in kind dividend on preferred shares
86

 
—

 
171

 
—

Adjust: Deemed dividend on preferred shares
145

 
—

 
285

 
—

Net income (loss) attributable to common stockholders - diluted
$
13,081

 
$
(3,103
)
 
$
8,077

 
$
(6,207
)
 
 
 
 
 
 
 
 
Denominator for basic income (loss) per share
9,758,332

 
6,376,048

 
9,758,332

 
6,026,454

Plus: Incremental shares underlying dilutive “in the money” stock options outstanding
25,257

 
—

 
11,483

 
—

Plus: Incremental common shares underlying convertible notes and related accrued interest
1,169,714

 
—

 
—

 
—

Plus: Incremental common shares underlying preferred stock
744,088

 
—

 
740,066

 
—

Denominator for diluted income (loss) per share
11,697,391

 
6,376,048

 
10,509,881

 
6,026,454

Diluted net income (loss) per common share
$
1.12

 
$
(0.49
)
 
$
0.77

 
$
(1.03
)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
The following potentially dilutive securities have been excluded from the computations of diluted weighted-average shares outstanding, as their effect would be anti-dilutive: 
 
Three months ended June 30,
 
Six months ended  June 30,
 
2019
 
2018
 
2019
 
2018
“In the money” stock options
—

 
36,000

 
—

 
36,000

“Out of the money” stock options
286,327

 
263,467

 
286,327

 
263,467

“In the money” warrants
—

 
1,528,668

 
—

 
1,528,668

“Out of the money” warrants
7,392,966

 
4,903,736

 
7,392,966

 
4,903,736

Shares underlying convertible notes
—

 
1,056,068

 
1,056,068

 
1,056,068

Shares underlying convertible accrued interest on convertible notes
—

 
79,120

 
125,213

 
79,120

Shares underlying convertible preferred stock
—

 
720,000

 
—

 
720,000