Quarterly report pursuant to Section 13 or 15(d)

Common Stock - Stock Options - Additional Information (Detail)

v3.24.3
Common Stock - Stock Options - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares reserved for options currently outstanding 1,928,414 1,928,414   1,461,980
Number of shares granted   466,500    
Unrecognized compensation expense related to stock options granted $ 2.4 $ 2.4    
Anti-dilutive securities excluded from earning per share computation   21,219,343 7,090,100  
Warrant [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Anti-dilutive securities excluded from earning per share computation   18,175,179    
Stock Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Weighted-average period, restricted stock awards   1 year 5 months 26 days    
Anti-dilutive securities excluded from earning per share computation   1,928,414    
Stock Options [Member] | Employees and Consultants [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   4 years    
Stock Options [Member] | Minimum [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award expiration period   7 years    
Stock Options [Member] | Minimum [Member] | Board of Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   1 year    
Stock Options [Member] | Maximum [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award expiration period   10 years    
Stock Options [Member] | Maximum [Member] | Board of Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   3 years    
Restricted Stock Unit [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Restricted shares reserved for issuance under incentive plan 1,115,750 1,115,750    
Award vesting period   4 years    
Weighted-average period, restricted stock awards   1 year    
Anti-dilutive securities excluded from earning per share computation   1,115,750    
2018 Equity Incentive Plan [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares reserved for issuance under incentive plan 61,761 61,761    
Award expiration period   10 years    
2018 Equity Incentive Plan [Member] | Minimum [Member] | Employees and Consultants [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   3 years    
2018 Equity Incentive Plan [Member] | Minimum [Member] | Board of Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   1 year    
2018 Equity Incentive Plan [Member] | Maximum [Member] | Employees and Consultants [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   4 years    
2018 Equity Incentive Plan [Member] | Maximum [Member] | Board of Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   3 years    
2018 Equity Incentive Plan [Member] | Stock Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares reserved for issuance under incentive plan 2,667,416 2,667,416    
Common shares reserved for options currently outstanding 1,489,905 1,489,905    
New Employee Inducement Grants [Member] | Stock Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares reserved for options currently outstanding 135,000 135,000    
Award expiration period   10 years    
Number of shares granted 0 0    
2017 Equity Incentive Plan [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award expiration period   10 years    
2017 Equity Incentive Plan [Member] | Minimum [Member] | Employees and Consultants [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   3 years    
2017 Equity Incentive Plan [Member] | Minimum [Member] | Board of Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   1 year    
2017 Equity Incentive Plan [Member] | Maximum [Member] | Employees and Consultants [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   4 years    
2017 Equity Incentive Plan [Member] | Maximum [Member] | Board of Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   3 years    
2017 Equity Incentive Plan [Member] | Stock Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares reserved for issuance under incentive plan 13,156 13,156    
2010 Performance Incentive Plan [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award expiration period   10 years    
2010 Performance Incentive Plan [Member] | Minimum [Member] | Employees and Consultants [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   3 years    
2010 Performance Incentive Plan [Member] | Minimum [Member] | Board of Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   1 year    
2010 Performance Incentive Plan [Member] | Maximum [Member] | Employees and Consultants [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   4 years    
2010 Performance Incentive Plan [Member] | Maximum [Member] | Board of Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   3 years    
2010 Performance Incentive Plan [Member] | Stock Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares reserved for issuance under incentive plan 103 103    
2023 Non Employee Director Equity Incentive Plan [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares reserved for issuance under incentive plan 9,750 9,750    
Award expiration period   10 years    
2023 Non Employee Director Equity Incentive Plan [Member] | Minimum [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   1 year    
2023 Non Employee Director Equity Incentive Plan [Member] | Maximum [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Award vesting period   3 years    
2023 Non Employee Director Equity Incentive Plan [Member] | Stock Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common shares reserved for issuance under incentive plan 300,000 300,000    
Common shares reserved for options currently outstanding 290,250 290,250