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Summary of Significant Accounting Policies (Details 1) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]    
Raw materials $ 80,000 $ 68,000
Work-in-process 12,000 10,000
Finished goods 261,000 223,000
Inventories $ 353,000 $ 301,000