Quarterly report pursuant to Section 13 or 15(d)

Stockholders' equity - Schedule of warrants or rights (Detail)

v3.23.3
Stockholders' equity - Schedule of warrants or rights (Detail) - $ / shares
 3 Months Ended
Aug. 11, 2023
Sep. 30, 2023
Outstanding, beginning of period   2,348,039
Outstanding, ending of period   33,476,440
Exercisable at September 30, 2023   33,476,440
Exercise price of class of warrants or rights outstanding   $ 1.92
Exercise price of class of warrants or rights outstanding   1.98
Exercisable at September 30, 2023   $ 1.98
Common warrants [Member]    
Common warrants issued   16,002,175
Common warrants issued   $ 3.86
Pre-funded warrants [Member]    
Pre-funded warrants issued 15,126,226 15,126,226
Pre-funded warrants issued   $ 0.0001