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Summary of Significant Accounting Policies (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Accounting Policies [Abstract]    
Insured cash sweep account $ 4,846,000 $ 11,103,000
Investment in money market fund   1,164,000
Impairment charge recorded to the obsolescence reserve   173,000
Impairment losses on long-lived assets   0
Advertising expense $ 59,000 $ 46,000