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INVESTMENT IN AMAK - Summary of Financial Position (Details)

v3.10.0.1

INVESTMENT IN AMAK - Summary of Financial Position (Details) - AMAK [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Current assets	$ 44,238	$ 23,333
Noncurrent assets	214,708	237,875
Total assets	258,946	261,208
Current liabilities	11,569	24,439
Long term liabilities	83,826	68,837
Shareholders' equity	163,551	167,932
Total liabilities and Shareholders' equity	$ 258,946	$ 261,208

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