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Stockholders' Equity - Common Stock (Details) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Common Stock    
Common stock, authorized (in shares) 150,000,000 150,000,000
Par value of common stock (in dollars per share) $ 0.001 $ 0.001
Common stock, issued (in shares) 20,084,337 12,433,600
Common Stock, outstanding (in shares) 20,084,337 12,433,600