Quarterly report pursuant to Section 13 or 15(d)

Note Payable - Additional Information (Details)

v3.19.3
Note Payable - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Dec. 20, 2018
Jun. 24, 2016
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Debt Instrument [Line Items]              
Borrowing principal amount     $ 19,458,149   $ 19,458,149   $ 19,809,511
Loan procurement costs   $ 646,246 509,048   509,048   $ 540,261
Amortization expense         150,708 $ 31,806  
Note payable, net book value     34,300,000   34,300,000    
Line of credit, outstanding borrowings     380,000   380,000    
Revolving Line of Credit              
Debt Instrument [Line Items]              
Amortization expense     39,832 $ 0 119,495 0  
Line of credit, issuance costs         477,981    
Line of credit, outstanding borrowings     380,000   380,000    
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          
Amortization expense     $ 10,342 $ 10,588 $ 31,213 $ 31,806  
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 effective interest rate 6.46%            
Debt instrument interest rate 3.00%