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FAIR VALUE (Tables)
 12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Fair value, assets measured on recurring basis The Company did not have any material financial liabilities that were required to be measured at fair value on a recurring basis at December 31, 2020 and 2019.
2020Level 1Level 2Level 3Total
Assets    
Interest bearing deposits – various banks$6,385 $— $— $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 
2019Level 1Level 2Level 3Total
Assets
Money Market Funds – Fidelity, US$5,000 $— $— $5,000 
Interest bearing deposits – various banks$8,962 $— $— $8,962 
Total assets$13,962 $— $— $13,962 
Amounts included in:    
Cash and cash equivalents$8,636 $— $— $8,636 
Restricted cash679 — — 679 
Long-term restricted cash4,647 — — 4,647 
Total$13,962 $— $— $13,962