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FAIR VALUE (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Amounts included in:    
Restricted cash $ 1,400 $ 1,400
Recurring Basis    
Assets    
Money Market Funds – JPMorgan Chase, US 450  
Interest bearing deposits – various banks 5,121 7,838
Amounts included in:    
Cash and cash equivalents 4,728 6,986
Restricted cash 680 680
Long-term restricted cash 163 172
Total 5,571 7,838
Recurring Basis | Level 1    
Assets    
Money Market Funds – JPMorgan Chase, US 450  
Interest bearing deposits – various banks 5,121 7,838
Amounts included in:    
Cash and cash equivalents 4,728 6,986
Restricted cash 680 680
Long-term restricted cash 163 172
Total 5,571 7,838
Recurring Basis | Level 2    
Assets    
Money Market Funds – JPMorgan Chase, US 0  
Interest bearing deposits – various banks 0 0
Amounts included in:    
Cash and cash equivalents 0 0
Restricted cash 0 0
Long-term restricted cash 0 0
Total 0 0
Recurring Basis | Level 3    
Assets    
Money Market Funds – JPMorgan Chase, US 0  
Interest bearing deposits – various banks 0 0
Amounts included in:    
Cash and cash equivalents 0 0
Restricted cash 0 0
Long-term restricted cash 0 0
Total $ 0 $ 0