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FEDERAL INCOME TAXES - Schedule of Reconciliation of Expected Income Tax on Net Income at Statutory Rates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
FEDERAL INCOME TAXES.
Net loss	$ (10,565)	$ (35,687)
Statutory tax rate	21.00%	21.00%
Tax recovery at statutory rate	$ (2,219)	$ (7,494)
State tax rate	(419)
Foreign tax rate	(5)	(801)
Change in US tax rates	(1,855)	1
Other adjustments	(101)	(1,076)
Capital loss carryforward adjustment	388	367
Operating loss carryforward adjustment	(964)	271
Alabama Graphite Corporation conversion to US entity	1,999
Operating loss Section 382 adjustment		49,303
Derivative tax adjustment	(590)
Nondeductible write-offs	(55)	2
Change in valuation allowance	$ 3,821	(40,573)
Income tax expense (recovery)

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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