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Net Loss Per Share - Schedule of Common Share Equivalents Included from Computation of Net Loss Per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Earnings Per Share [Abstract]                
Net loss used in the calculation of basic and diluted loss per share $ (10,349) $ (9,579) $ (10,772) $ (10,471) $ (9,247) $ (9,864) $ (30,700) $ (29,582)
Net loss per share, Basic $ (0.35)     $ (0.73)     $ (1.35) $ (2.07)
Net loss per share, Diluted $ (0.35)     $ (0.73)     $ (1.35) $ (2.07)
Weighted-average common shares outstanding, Basic 29,974,400     14,265,905     22,813,085 14,289,729
Weighted-average common shares outstanding, Diluted 29,974,400     14,265,905     22,813,085 14,289,729