Summary of Stock-based Compensation Expenses (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 325,710	$ 274,502	$ 728,973	$ 355,555
Research, Development and Patents
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	120,037	96,364	261,155	138,871
General and Administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 205,673	$ 178,138	$ 467,818	$ 216,684