Annual report pursuant to Section 13 and 15(d)

Note Payable and Revolving Line of Credit- Additional Information (Details)

v3.19.1
Note Payable and Revolving Line of Credit- Additional Information (Details) - USD ($)
12 Months Ended
Dec. 20, 2018
Jun. 24, 2016
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]        
Borrowing principal amount     $ 19,809,511 $ 20,000,000
Note payable, net book value     34,600,000  
Line of credit, issuance costs     477,981  
Loan procurement costs   $ 646,246 540,261 $ 282,595
Revolving Line of Credit        
Debt Instrument [Line Items]        
Line of credit, issuance costs     477,981  
Line of credit, outstanding borrowings     $ 0  
Promissory Note        
Debt Instrument [Line Items]        
Borrowing principal amount   $ 20,000,000    
Debt instrument interest rate   4.192%    
Debt instrument effective interest rate   4.40%    
Debt instrument maturity date   Jul. 01, 2036    
Promissory Note | Revolving Line of Credit        
Debt Instrument [Line Items]        
Borrowing principal amount $ 10,000,000      
Debt instrument maturity date Dec. 20, 2021      
Promissory Note | Revolving Line of Credit | One Month London Inter-Bank Offered Rate        
Debt Instrument [Line Items]        
Debt instrument interest rate 3.00%