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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - $ / shares
1 Months Ended
Jun. 30, 2019
Jan. 31, 2019
Jun. 30, 2018
Stock issued in transaction (shares) 2,415,000 1,854,838 3,162,500
Sale price of common stock (USD per share) $ 97.00 $ 62.00 $ 38.85
Note Warrant      
Stock issued in transaction (shares)     421,650
Sale price of common stock (USD per share)     $ 38.849