XML 47 R71.htm IDEA: XBRL DOCUMENT v3.20.1
Subsequent Events (Details) - USD ($)
Apr. 15, 2020
Mar. 15, 2020
Feb. 15, 2020
Mar. 31, 2020
Feb. 29, 2020
Jan. 31, 2020
Dec. 31, 2019
Subsequent Event [Line Items]              
Line of credit             $ 5,000,000
Subsequent Event [Member] | Series A Preferred Stock              
Subsequent Event [Line Items]              
Dividends payable       $ 0.2031 $ 0.2031 $ 0.2031  
Dividends declared and paid $ 974,272 $ 974,272 $ 974,272