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Senior Convertible Debentures (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 01, 2009
Debt Instrument [Line Items]      
Senior Convertible Debentures $ 6,044,000 $ 6,064,000  
Senior Convertible Debt [Member] | Senior Convertible Debentures issued December 1, 2009 [Member]      
Debt Instrument [Line Items]      
Senior Convertible Debentures     $ 6,100,000
Interest rate per year     8.00%
Debt Instrument, Redemption Price, Percentage 100.00%