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Notes Payable and Accrued Interest (Tables)
12 Months Ended
Dec. 31, 2018
Notes Payable and Accrued Interest [Abstract]  
Notes Payable and Accrued Interest
At December 31, 2018 and December 31, 2017, the Company’s notes payable and accrued interest consisted of the following:

  
December 31,
2018
  
December 31,
2017
 
Credit Facility:
      
Principal
 
$
122,400,000
  
$
134,000,000
 
Unamortized debt issuance costs
  
(674,300
)
  
(2,216,000
)
Accrued interest
  
139,300
   
278,900
 
Special purpose financing:
        
Principal
  
9,211,200
   
13,511,900
 
Accrued interest
  
16,000
   
23,400
 
  
$
131,092,200
  
$
145,598,200