Acquisitions - Schedule of Fair Value of Assets Acquired and Liabilities Assumed (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)
Total consideration received	$ 8,880
Cash and cash equivalents	17
Short-term receivables	113
Prepaid expenses	42
Property, plant, equipment and graphite mineral interests	8,973
Total assets	9,145
Accounts payable and accrued liabilities	265
Total liabilities	265
Net assets	8,880
Cash [Member]
Total consideration received	2,397
Common Shares for Replacement of Alabama Graphite Shares [Member]
Total consideration received	6,394
Options for Replacement of Alabama Graphite Options [Member]
Total consideration received	35
Warrants for Replacement of Alabama Graphite Warrants [Member]
Total consideration received	$ 54

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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