Restructuring - Schedule of Restructuring Charges and Cash Payments (Detail) $ in Thousands	12 Months Ended
	Mar. 31, 2016 USD ($)
Restructuring Cost And Reserve [Line Items]
Accrued restructuring balance	$ 180
Charges to operations	33
Cash payments	(213)
Accrued restructuring balance	0
Severance pay and benefits
Restructuring Cost And Reserve [Line Items]
Accrued restructuring balance	180
Charges to operations	(5)
Cash payments	(175)
Accrued restructuring balance	0
Facility exit and Relocation costs
Restructuring Cost And Reserve [Line Items]
Charges to operations	38
Cash payments	$ (38)