Common Stock - Common Stock Issued for Services (Detail) - USD ($)	3 Months Ended	9 Months Ended
	Mar. 31, 2021	Sep. 30, 2021
Components of common Stock [Line Items]
Issuance of common stock for services	$ 80,000
Common Stock Issued for Services | Non Employee Directors [Member]
Components of common Stock [Line Items]
Issuance of common stock for services (Shares)		3,604
Issuance of common stock for services		$ 80,000