Net Revenues and Long-Lived Assets of Company (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Net revenues	$ 45,751	$ 76,323
Long-lived assets	130	179
UNITED STATES
Segment Reporting Information [Line Items]
Net revenues	45,751	76,323
Long-lived assets	32	76
Foreign
Segment Reporting Information [Line Items]
Long-lived assets	$ 98	$ 103