Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Finite Lived Intangible Assets Accumulated Amortization Addition	$ 95,000	$ 47,000	$ 190,000	$ 94,000