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FAIR VALUE ACCOUNTING (Details)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
Jun. 23, 2021
$ / shares
Liabilities:      
Long term debt $ 63,700 $ 48,900  
Impairment of long-lived assets 0    
Disposal Group | Projects in Nevada      
Liabilities:      
Price per common share for each warrant | $ / shares     $ 0.60
Fair Value, Measurements, Recurring [Member]      
Assets:      
Investments 2,233 1,644  
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Assets:      
Investments 2,233 1,644  
Marketable equity securities. | Fair Value, Measurements, Recurring [Member]      
Assets:      
Investments 2,233 1,644  
Marketable equity securities. | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Assets:      
Investments $ 2,233 $ 1,644  
Warrant | Disposal Group | Projects in Nevada      
Liabilities:      
Price per common share for each warrant | $ / shares $ 0.60    
Warrants exercised | shares 0    
Warrant | Volatility | Valuation Technique, Option Pricing Model | Projects in Nevada      
Liabilities:      
Average volatility 94.6