Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Income Tax Contingency [Line Items]
Income tax provision (benefit)	$ 92,000	$ (104,000)	$ 153,000	$ (104,000)
Unrecognized tax benefits	2,300,000		2,300,000
Unrecognized tax benefits that would affect income tax expense	2,300,000		2,300,000
Changes to unrecognized tax benefits			500,000
Increase in unrecognized tax benefits that would affect income tax expense			$ 0
Change in unrecognized tax benefits, description			The Company does not have any tax positions as of December 31, 2015 for which it is reasonably possible that the total amount of gross unrecognized tax benefits will significantly increase or decrease within the next 12 months.
U.S. [Member]
Income Tax Contingency [Line Items]
Income tax provision (benefit)	$ 0		$ 0