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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2018
Income Taxes |
Schedule of income/(loss) before income tax, domestic and foreign |
|  | Years ended December 31,
|  | 2018 |  | 2017 |
U.S. |  | $ | (646) |  | $ | (2,477) |
Canada |  |  | (2,288) |  |  | (2,119) |
Other Foreign |  |  | (5,780) |  |  | (7,439) |
|  | $ | (8,714) |  | $ | (12,035) |
Schedule of effective income tax rate reconciliation |
|  | Years ended December 31,
|  | 2018 |  | 2017 |
Income taxed at statutory rates |  | $ | (2,125) |  | $ | (4,212) |
Increase (decrease) in taxes from: |  |  |  |  |  |  |
Stock-based compensation |  |  | 79 |  |  | 46 |
Other adjustments |  |  | 5 |  |  | (87) |
Adjustment due to capital transactions |  |  |  |  |  |  |
Prior year provision to actual adjustments |  |  | (2,867) |  |  | 108 |
Change in US tax rate |  |  | — |  |  | 2,487 |
Differences in tax rates |  |  | (339) |  |  | 563 |
Effect of foreign exchange |  |  | (6) |  |  | (99) |
Expiration of NOLs |  |  | — |  |  | — |
Change in valuation allowance |  |  | 5,253 |  |  | 1,194 |
Income tax (benefit)/expense |  | $ | — |  | $ | — |
Schedule of deferred tax assets and liabilities |
|  | December 31,
|  | 2018 |  | 2017 |
Deferred income tax assets |  |  |  |  |  |  |
Excess tax basis over book basis of property, plant and equipment |  | $ | 7,488 |  | $ | 7,488 |
Marketable securities |  |  | 667 |  |  | 771 |
Operating loss carryforwards |  |  | 34,052 |  |  | 28,530 |
Capital loss carryforwards |  |  | 13,276 |  |  | 13,470 |
Other |  |  | 2,031 |  |  | 1,848 |
Total future tax assets |  |  | 57,514 |  |  | 52,107 |
Valuation allowance for future tax assets |  |  | (56,659) |  |  | (51,406) |
|  |  | 855 |  |  | 701 |
Deferred income tax liabilities |  |  |  |  |  |  |
Other investments |  |  | 855 |  |  | 701 |
|  |  | 855 |  |  | 701 |
Total Deferred Taxes |  | $ | — |  | $ | — |
Summary of expiring loss carryforwards |
|  | Noncapital Canada |  | U.S. |  | Mexico |  | Barbados |  | Total |
2018 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |
2019 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
2020 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
2021 |  |  | — |  |  | — |  |  | — |  |  | (20) |  |  | (20) |
2022 |  |  | — |  |  | — |  |  | (6,184) |  |  | (31) |  |  | (6,215) |
2023 |  |  | — |  |  | — |  |  | (347) |  |  | (22) |  |  | (369) |
2024 |  |  | — |  |  | — |  |  | — |  |  | (4) |  |  | (4) |
2025 |  |  | — |  |  | — |  |  | (74) |  |  | (6) |  |  | (80) |
2026 |  |  | (1,027) |  |  | — |  |  | (697) |  |  | (6) |  |  | (1,730) |
2027 |  |  | (847) |  |  | — |  |  | — |  |  | (6) |  |  | (853) |
2028 |  |  | (5,245) |  |  | (1,287) |  |  | (206) |  |  | — |  |  | (6,738) |
2029 |  |  | (4,022) |  |  | (1,719) |  |  | — |  |  | — |  |  | (5,741) |
2030 |  |  | (5,032) |  |  | (1,970) |  |  | — |  |  | — |  |  | (7,002) |
2031 |  |  | (3,806) |  |  | (1,827) |  |  | — |  |  | — |  |  | (5,633) |
2032 |  |  | (6,397) |  |  | (3,407) |  |  | — |  |  | — |  |  | (9,804) |
2033 |  |  | (6,076) |  |  | (2,323) |  |  | — |  |  | — |  |  | (8,399) |
2034 |  |  | (4,420) |  |  | (3,098) |  |  | — |  |  | — |  |  | (7,518) |
2035 |  |  | (3,729) |  |  | (2) |  |  | — |  |  | — |  |  | (3,731) |
2036 |  |  | (2,799) |  |  | (2,655) |  |  | — |  |  | — |  |  | (5,454) |
2037 |  |  | (1,916) |  |  | (2,482) |  |  | — |  |  | — |  |  | (4,398) |
2038 |  |  | (1,664) |  |  | — |  |  | — |  |  | — |  |  | (1,664) |
|  | $ | (46,980) |  | $ | (20,770) |  | $ | (7,508) |  | $ | (95) |  | $ | (75,353) |
Note: U.S. loss carryforwards for tax years beginning in 2018 of $2,395, Canadian capital loss carryforwards of $53,883 and Australian NOLs of $46,600, which do not expire, are not included above.

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