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Shareholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2017
Equity [Abstract]  
Share-based Compensation, Stock Options, Activity
The following table summarizes the activity for stock options and warrants for the six months ended June 30, 2017, as adjusted for the Reverse Stock Split:

 
 
Stock Options
 
Warrants
 
 
Shares
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Term (Years)
 
Aggregate Intrinsic Value (In Thousands)
 
Shares
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Term (Years)
 
Aggregate Intrinsic Value (In Thousands)
Outstanding at December 31, 2016
 
952,790

 
$
39.90

 
7.60
 
$
—

 
388,062

 
$
76.50

 
1.24
 
$
—

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Changes during the period:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Granted
 
447,157

 
11.80

 
 
 
 
 
—

 
—

 
 
 
 
Exercised
 
(3,835
)
 
4.70

 
 
 
 
 
—

 
—

 
 
 
 
Forfeited
 
(244,413
)
 
18.70

 
 
 
 
 
(1,691
)
 
700.00

 
 
 
 
Expired
 
(32,119
)
 
37.00

 
 
 
 
 
(100,909
)
 
128.60

 
 
 
 
Outstanding at June 30, 2017
 
1,119,580

 
$
33.50

 
5.58
 
$
231.8

 
285,462

 
$
57.80

 
1.10
 
$
—

Vested at June 30, 2017
or expected to vest in the future
 
1,119,152

 
$
33.60

 
5.58
 
$
231.8

 
285,462

 
$
57.80

 
1.10
 
$
—

Vested at June 30, 2017
 
1,111,740

 
$
32.90

 
5.59
 
$
231.5

 
285,462

 
$
57.80

 
1.10
 
$
—
Schedule of Restricted Stock
During the six months ended June 30, 2017 and 2016, the Company issued restricted stock for services as follows (in thousands, except share data):

 
 
Six Months Ended June 30,
  
 
2017
 
2016
Number of restricted stock issued
 
132,726

 
107,719

Value of restricted stock issued
 
$
469.9

 
$
651.7