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9. Income Taxes
 9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]  
9. Income Taxes

The tax effect of temporary differences, primarily net operating loss carry forwards, asset reserves and accrued liabilities give rise to a deferred tax asset. Deferred income taxes are recognized for the tax consequence of such temporary differences at the enacted tax rate expected to be in effect when the differences reverse. Because of the current uncertainty of realizing the benefit of the tax carry forward, a valuation allowance equal to the tax benefit for deferred taxes has been established. The full realization of the tax benefit associated with the carry forward depends predominantly upon the Company's ability to generate taxable income during the carry forward period.