Commitments and Contingencies - Additional Information (Detail)			3 Months Ended
	Mar. 01, 2016 ft²	Jul. 01, 2015 USD ($) ft²	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Non-cancelable operating lease agreement term		4 years
Area of real estate property (in sqft) | ft²		8,171
Future minimum commitment under non-cancelable operating lease		$ 23,300
Period of increases to monthly payments		3 years
Additional area of office space for headquarters facility | ft²	5,265
Rent expense			$ 54,000	$ 85,000
Sublease income			$ 65,000	$ 98,000