Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Taxes
Beginning balance	$ 710,783
Increases for current year tax positions	0	$ 710,783
Decreases for prior year tax positions	(474,458)
Ending balance	$ 236,325	$ 710,783