MARKETABLE SECURITIES - Fair Value, Cost and Gross Unrealized Holding Gains of Securities Owned (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 66,955	$ 62,608
Gross Unrealized Gains	0	35
Gross Unrealized Losses	(70)	(10)
Fair Value	66,885	62,633
U.S. Government and agency debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	42,514	31,866
Gross Unrealized Gains	0	30
Gross Unrealized Losses	(65)	(10)
Fair Value	42,449	31,886
U.S. Treasury bills
Debt Securities, Available-for-sale [Line Items]
Amortized cost	24,441	30,742
Gross Unrealized Gains	0	5
Gross Unrealized Losses	(5)	0
Fair Value	$ 24,436	$ 30,747