Credit Facility (Detail) - USD ($)		3 Months Ended
	Jan. 23, 2020	Mar. 31, 2020
Line of Credit Facility [Line Items]
Revolving credit facility, maximum borrowing capacity		$ 250,000
Credit facility expiration date	Apr. 30, 2020
Credit facility limit restricted to support letter of credit		226,731
Line of credit facility, remaining borrowing capacity		$ 0
Prime Rate
Line of Credit Facility [Line Items]
Interest rate over prime rate		0.50%