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Summary of Significant Accounting Policies (Intangilbe Assets) (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]    
Impairment of intangible assets
Patents [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangible assets useful lives 20 years