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4. Property and Equipment (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Abstract]    
Depreciation expense $ 19,000 $ 7,000
Cost of property disposed   38,000
Accumulated depreciation of disposed property   35,000
Loss on disposition of property $ 0 $ (3,000)