FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2021

Financial Instruments, Owned, at Fair Value [Abstract]

Financial instruments

	As of March 31, 2021
	Adjusted		Unrealized		Unrealized		Market
	Cost		Gains		Losses		Value
Level 1:
Money Market Funds	$	1,035	$	-	$	-	$	1,035
U.S. Treasury securities considered cash equivalents		-		-		-		-
U.S. Treasury securities in short-term investments		34,983		17		-		35,000
Total Financial Assets	$	36,018	$	17	$	-	$	36,035

	As of December 31, 2020
	Adjusted		Unrealized		Unrealized		Market
	Cost		Gains		Losses		Value
Level 1:
Money Market Funds	$	6,035	$	-	$	-	$	6,035
U.S. Treasury securities considered cash equivalents		9,998		-		-		9,998
U.S. Treasury securities in short-term investments		24,979		15		-		24,994
Total Financial Assets	$	41,012	$	15	$	-	$	41,027