Quarterly report pursuant to Section 13 or 15(d)

INVESTMENT IN AMAK (Held-for-Sale) - Equity in the Income or Loss of Equity Method Investment (Details)

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INVESTMENT IN AMAK (Held-for-Sale) - Equity in the Income or Loss of Equity Method Investment (Details) - AMAK - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Schedule of Equity Method Investments [Line Items]        
AMAK Net Loss $ (108) $ (1,292) $ (2,719) $ (2,475)
Percentage of Ownership 28.30% 33.30% 33.10% 33.30%
Company's share of loss reported by AMAK $ (31) $ (429) $ (900) $ (824)
Amortization of difference between Company's investment in AMAK and Company's share of net assets of AMAK 337 337 674 674
Equity in earnings (losses) of AMAK $ 306 $ (92) $ (226) $ (150)