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Net Loss per Share - Additional Information (Detail) | 1 Months Ended
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Jun. 30, 2019 $ / shares shares
Common Stock $0.001 Par Value |
Proceeds from issuance of common stock in connection with at-the-market offering, net of issuance costs, Shares | shares | 422,718
Pre-Funded Warrants |
Warrants to purchase shares of common stock | shares | 169,874
Warrants exercise price per share | $ / shares | $ 135
Warrants exercise price per share paid at closing of offering | $ / shares | $ 134.85

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