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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - Convertible promissory notes
Dec. 31, 2020
10% convertible promissory notes  
Interest rate percentage 10.00%
Affiliated entity | Convertible Promissory Notes due December 2019, Recourse  
Interest rate percentage 8.00%
Affiliated entity | 6% Notes  
Interest rate percentage 6.00%