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Contingent Liabilities and Commitments (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2019
Contingent Liabilities and Commitments (Textual)        
Royalty, percentage   4.00%    
Growth assumption, percentage     6.00%  
Royalties due for 2017 $ 5,000      
Royalties due for 2018 10,000      
Royalties due for 2019 15,000      
Royalties       $ 76,876
Capital expenditures committed 218,000      
Construct and equip commitment 763,000      
Purchase of inventory 1,188,000      
Capital expenditures 123,000      
Other capital expenditures $ 438,000