Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Additional Information (Details)

v3.19.3
Fair Value Measurements - Additional Information (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Assets transferred from level 1 to level 2 $ 0  
Fair value, re-measured on recurring basis using significant unobservable inputs , assets value 0  
Fair value, re-measured on recurring basis using significant unobservable inputs , liabilities value 0  
Aggregate carrying value of debt 19,458,149 $ 19,809,511
Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Aggregate carrying value of debt 19,838,149  
Estimated fair value of debt $ 20,100,000