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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Statement of Financial Position [Abstract]    
Common stock, par value $ 0.001 $ 0.001
Common stock, authorized 100,000,000 100,000,000
Common stock, issued 72,262,829 68,941,311
Common stock, outstanding 72,262,829 68,941,311