XML 39 R28.htm IDEA: XBRL DOCUMENT v3.21.2
Investments, Securities in Continuous Unrealized Loss Position (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Fair Value of Investments with Sustained Gross Unrealized Losses [Abstract]    
Less than 12 months, fair value $ 0 $ 4,937
12 months or longer, fair value 0 0
Total 0 4,937
Less than 12 months, unrealized losses 0 (63)
12 months or longer, unrealized losses 0 (411,584)
Total 0 (411,647)
All Other Corporate Bonds [Member]    
Fair Value of Investments with Sustained Gross Unrealized Losses [Abstract]    
Less than 12 months, fair value 0 4,937
12 months or longer, fair value 0 0
Total 0 4,937
Less than 12 months, unrealized losses 0 (63)
12 months or longer, unrealized losses 0 (411,584)
Total $ 0 $ (411,647)