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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Jun. 30, 2020
Dec. 31, 2019
Statement of Financial Position [Abstract]    
Common stock par value (in dollars per share) $ 0.001 $ 0.001
Common stock authorized (in shares) 200,000,000 200,000,000
Common stock issued (in shares) 4,258,105 4,186,438
Common stock outstanding (in shares) 4,258,105 4,186,438