Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS - Schedule of investments, available for sales securities (Details)

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INVESTMENTS - Schedule of investments, available for sales securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Marketable Securities [Line Items]    
Corporate notes and bonds $ 19,035 $ 39,793
Fair Value, Inputs, Level 2    
Marketable Securities [Line Items]    
Corporate notes and bonds 19,035 $ 39,793
Fair Value, Inputs, Level 2 | Adjusted Cost Basis    
Marketable Securities [Line Items]    
Corporate notes and bonds 19,035  
Fair Value, Inputs, Level 2 | Unrealized Gain (Loss)    
Marketable Securities [Line Items]    
Corporate notes and bonds 0  
Fair Value, Inputs, Level 2 | Recorded Basis    
Marketable Securities [Line Items]    
Corporate notes and bonds $ 19,035