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Summary of Significant Accounting Policies (Details 1) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Raw materials $ 32,000 $ 47,000
Work-in-process 2,000 16,000
Finished goods 51,000 259,000
Inventories $ 85,000 $ 322,000