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Nature of Operations (Tables)
 12 Months Ended
Dec. 31, 2018
Nature of Operations [Abstract]  
Restructuring Activity
The restructuring activity during 2018 is as follows:

Restructuring reserve at December 31, 2017
 
$
–
 
Initial restructuring charge
  
6,276,563
 
Incurred legal fees
  
1,447,079
 
Severance revisions
  
259,529
 
Retention compensation
  
1,201,568
 
Restructuring expenses to date (1)
  
9,184,739
 
     
Payment of legal fees
  
(493,404
)
Payment of retention compensation
  
(56,925
)
Payment of advisor fees
  
(500,000
)
Payment of severance benefits
  
(2,571,224
)
Restructuring reserve as of December 31, 2018
 
$
5,563,186
 

(1)  Excludes non-cash stock based retention compensation of $729,470 expensed to date through restructuring expenses.