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Summary of Significant Accounting Policies - Schedule of Product Warranty Liability (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]    
Warranty reserve, beginning $ 507,000 $ 182,000
Warranty reserve expense 23,000 550,000
Warranty claims settled and true-up of accrual (205,000) (225,000)
Warranty reserve, ending $ 325,000 $ 507,000