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8. Income Taxes (Details 1)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Taxes Details 1
Statutory U.S. income tax rate	(34.00%)	34.00%
States taxes, net of federal benefit	(1.37%)	2.33%
Non-deductible items	0.52%	0.54%
Change in valuation allowance	(0.25%)	1.78%
Change in net operating loss carryforwards and tax credits	(3.27%)	(1.65%)
Other	0.25%	0.13%
Effective income tax rate	(38.12%)	37.13%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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