Quarterly report pursuant to Section 13 or 15(d)

ACCRUED LIABILITIES (Details)

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ACCRUED LIABILITIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Derivative [Line Items]    
Property taxes $ 906 $ 0
Payroll 2,104 2,282
Royalties 391 260
Officer compensation 368 1,053
AMAK transaction costs 0 559
Other 2,188 1,524
Total accrued liabilities 6,002 6,857
State taxes    
Derivative [Line Items]    
Foreign taxes 45 125
Foreign taxes    
Derivative [Line Items]    
Foreign taxes $ 0 $ 1,054