Quarterly report pursuant to Section 13 or 15(d)

General Commitments (Narrative) (Details)

v3.20.1
General Commitments (Narrative) (Details) - USD ($)
Aug. 02, 2018
Mar. 31, 2020
Dec. 31, 2019
Other Commitments [Line Items]      
Sale of building, purchase agreement, consideration amount $ 10,000,000    
Purchase agreement, buyer to complete due diligence, period 180 days    
Restricted cash   $ 479,128 $ 679,006
Purchase Agreement [Member]      
Other Commitments [Line Items]      
Restricted cash   $ 225,000