| 12. | Income Taxes |
| | | December 31, | | ||||
| | | 2017 | | 2016 | | ||
| Net operating loss carryforwards | | $ | 1,551,000 | | $ | 3,356,000 | |
| Stock-based compensation | | | 504,000 | | | 2,016,000 | |
| Deferred rent | | | - | | | 9,000 | |
| Accrued compensation | | | 17,000 | | | - | |
| Depreciation | | | 5,000 | | | 1,000 | |
| Total deferred tax assets | | | 2,077,000 | | | 5,382,000 | |
| Valuation allowance | | | (2,077,000) | | | (5,382,000) | |
| Net deferred tax assets | | $ | - | | $ | - | |
| | | Year Ended December 31, | | ||||
| | | 2017 | | 2016 | | ||
| U. S. federal statutory tax rate | | | (35.0) | % | | (35.0) | % |
| Share-based compensation | | | 4.3 | % | | 0.0 | % |
| State taxes, net of Federal benefit | | | 0.0 | % | | (6.0) | % |
| Adjustment to beginning deferred tax asset | | | 68.5 | % | | 0.0 | % |
| Change in valuation allowance | | | (38.0) | % | | 41.0 | % |
| Other | | | 0.2 | % | | 0.0 | % |
| Effective tax rate | | | 0.0 | % | | 0.0 | % |