XML 52 R40.htm IDEA: XBRL DOCUMENT v3.21.2
TRADING SECURITY (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]    
Amortized cost $ 8,300 $ 8,700
Trading security, at fair value $ 8,853 $ 9,708