Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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The price per share of the conversion feature embedded in the debt instrument.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Exercise prices for the option and warrant shares.

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Number of replacement options and warrants.

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Number of replacement options issued.

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Number of replacement options outstanding.

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Replacement options and warrants shares exchange rate.

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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		9 Months Ended
	Apr. 30, 2018	Nov. 30, 2015	Sep. 30, 2019	Sep. 30, 2018	Apr. 18, 2019	Dec. 13, 2017	Jul. 18, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			$ 0.2	$ 0.3
Anatolia Energy Limited
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of replacement options issued		7,495
Debt instrument conversion price per share		$ 0.0001096
Number of replacement options outstanding			113
Alabama Graphite
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of replacement options outstanding			4,528
Number of replacement options and warrants	50,168
Replacement options and warrants shares exchange rate	$ 0.0016
Exercise prices for the option and warrant shares						$ 0.77809
Number of replacement warrants outstanding			11,440
2013 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares reserved for future issuance					45,886
2013 Omnibus Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares reserved for future issuance			66,278		66,000		20,000
Stock option vesting period			10 years