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FAIR VALUE (Tables)
 3 Months Ended
Mar. 31, 2021
Fair Value Disclosures [Abstract]  
Fair value, assets measured on recurring basis
The table below presents the recorded amount of financial assets measured at fair value (in thousands) on a recurring basis as of March 31, 2021 and December 31, 2020.
March 31, 2021Level 1Level 2Level 3Total
Assets    
Money Market Funds – JPMorgan Chase, US$250 $— $— $250 
Interest bearing deposits – various banks6,159 — — 6,159 
Total assets$6,409 $— $— $6,409 
Amounts included in:    
Cash and cash equivalents$3,352 $— $— $3,352 
Restricted cash680 — — 680 
Long-term restricted cash2,377 — — 2,377 
Total$6,409 $— $— $6,409 

December 31, 2020Level 1Level 2Level 3Total
Assets    
Interest bearing deposits – various banks6,385 — — 6,385 
Total assets$6,385 $— $— $6,385 
Amounts included in:    
Cash and cash equivalents$2,137 $— $— $2,137 
Restricted cash680 — — 680 
Long-term restricted cash3,568 — — 3,568 
Total$6,385 $— $— $6,385