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Notes Receivable (Tables) | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Schedule of Notes Receivable | The following tables show the notes receivable, accrued interest and unamortized discount on the Company’s notes receivable as of December 31, 2017. The Company had no notes receivable at December 31, 2016.
|  | December 31, 2017 |
(thousands of dollars) |  | Note Amount |  |  | Plus Accrued Interest |  |  | Less Unamortized Note Discount |  |  | Note Balance per Balance Sheet |
Current Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes receivable Laramide – current |  | $ | 1,500 |  |  | $ | 250 |  |  | $ | - |  |  | $ | 1,750 |
Subtotal Notes Receivable – current |  | $ | 1,500 |  |  | $ | 250 |  |  | $ | - |  |  | $ | 1,750 |
Non-current Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes receivable – Laramide – non-current |  | $ | 3,500 |  |  | $ | - |  |  | $ | (1,005 | ) |  | $ | 2,495 |
Notes receivable – Alabama Graphite Corp. |  |  | 832 |  |  |  | 1 |  |  |  | - |  |  |  | 833 |
Subtotal Notes Receivable – non-current |  | $ | 4,332 |  |  | $ | 1 |  |  | $ | (1,005 | ) |  | $ | 3,328 |
Total Notes Receivable – current and non-current |  | $ | 5,832 |  |  | $ | 251 |  |  | $ | (1,005 | ) |  | $ | 5,078 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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