v3.24.1.u1
FAIR VALUE MEASUREMENTS (Details) - Fair Value, Inputs, Level 1 [Member] - Fair Value, Recurring [Member] - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cost $ 19,219 $ 19,460
Unrealized Gain/(Loss) (1)  
Accretion of Discount 46 71
Fair Value 19,264 19,531
Cash [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cost 1 157
Unrealized Gain/(Loss) 0  
Accretion of Discount 0 0
Fair Value 1 157
Money Market Funds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cost 14,805 12,434
Unrealized Gain/(Loss) 0  
Accretion of Discount 0 0
Fair Value 14,805 12,434
US treasury bills [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cost 1,958 2,931
Unrealized Gain/(Loss) 0  
Accretion of Discount 15 50
Fair Value 1,973 2,981
US agency bonds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cost 2,455 3,938
Unrealized Gain/(Loss) (1)  
Accretion of Discount 31 21
Fair Value $ 2,485 $ 3,959