INVESTMENTS - (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Investments [Abstract]
Number of positions held in unrealized loss position | security		47	203
Number of positions held for more than twelve months | security		2	24
Fair value of investments deposited with governmental authorities required by law		$ 11,500	$ 11,200
Debt securities, held-to-maturity, sold, amount	$ 70
Debt securities, held-to-maturity, sold, realized loss (Less than)	$ 1
Debt securities, held-to-maturity, transfer, amount		4,200
Fair Value		4,300
Debt securities, held-to-maturity, transfer, unrealized gain		$ 58