XML 34 R23.htm IDEA: XBRL DOCUMENT v3.21.2
SCHEDULE OF AVAILABLE-FOR-SALE INVESTMENTS HELD (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]    
U.S. government and agency securities and treasuries $ 50,380,000 $ 82,438,000