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14. Income Tax (Tables) | 12 Months Ended
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Dec. 31, 2018
Income Tax Disclosure [Abstract] |
U.S. loss and foreign loss before income taxes |
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |
United States |  | $ | (36,131 | ) |  | $ | (30,687 | )
Foreign |  |  | (149 | ) |  |  | (1,077 | )
Pretax Income |  | $ | (36,280 | ) |  | $ | (31,764 | )
Effective tax rate |
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |
Income tax expense (benefit) at the federal statutory rate |  | $ | (7,619 | ) |  | $ | (10,799 | )
Tax Rate Re-measurement - 2017 Tax Cut |  |  | - |  |  |  | 19,600 |
State tax expense (benefit) |  |  | (632 | ) |  |  | (1,689 | )
Foreign tax differential |  |  | 450 |  |  |  | 1,154 |
Stock-based compensation |  |  | 150 |  |  |  | 299 |
Interest expense |  |  | - |  |  |  | 33 |
GILTI Inclusion |  |  | 97 |  |  |  | - |
Other |  |  | (47 | ) |  |  | (24 | )
Credits |  |  | - |  |  |  | (24 | )
Valuation allowance |  |  | 7,608 |  |  |  | (8,544 | )
Income Tax Expense |  | $ | 7 |  |  | $ | 6 |
Effective Tax Rate |  |  | -0.02 | % |  |  | -0.02 | %
Components of the net deferred tax asset or (liability) |
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |
Org, Start-up and Intangible Assets |  | $ | 4,723 |  |  | $ | 5,045 |
Stock Based Comp |  |  | 301 |  |  |  | 223 |
Prop., Plant, and Equip. |  |  | (13,631 | ) |  |  | (14,551 | )
NOLs and R&D Credits |  |  | 56,270 |  |  |  | 53,874 |
Interest Expense Carryover |  |  | 4,722 |  |  |  | - |
Ethanol Credits |  |  | 1,500 |  |  |  | 1,500 |
Debt Extinguishment |  |  | - |  |  |  | 91 |
Other, net |  |  | 450 |  |  |  | 545 |
Subtotal |  |  | 54,335 |  |  |  | 46,727 |
Valuation Allowance |  |  | (54,335 | ) |  |  | (46,727 | )
Deferred tax assets (liabilities) |  | $ | - |  |  | $ | - |
Open tax years, by major tax jurisdiction |
United States — Federal |  | 2007 – present |
United States — State |  | 2008– present |
India |  | 2010 – present |
Mauritius |  | 2006 – present |

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