XML 38 R28.htm IDEA: XBRL DOCUMENT v3.22.2
INVESTMENT SECURITIES - Summary of investment securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Amortized cost, as adjusted $ 84,714 $ 51,409
Gross unrealized holding losses 1,335 164
Estimated fair value 83,379 51,245
Short-term Investments [Member] | Obligations of domestic governmental agencies [Member]    
Amortized cost, as adjusted 48,636 15,876
Gross unrealized holding losses 364 4
Estimated fair value 48,272 15,872
Long-term investments [Member] | Obligations of domestic governmental agencies [Member]    
Amortized cost, as adjusted 36,078 35,533
Gross unrealized holding losses 971 160
Estimated fair value $ 35,107 $ 35,373