Related Party Transactions (Detail) - Executive Vice President - USD ($)		3 Months Ended
	May 06, 2019	Mar. 31, 2020	Mar. 31, 2019
Related Party Transaction [Line Items]
Related party retainer compensation	$ 5,000
Fees for performing duties		$ 15,750	$ 38,000
Related party transaction compensation for services on board		13,125	12,500
Payment of annual bonus compensation		$ 0	$ 58,000