Significant Customer and Geographic Information - Revenue by Customer (Details) - Net Revenue - Customer Concentration Risk		3 Months Ended		6 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Wintec (global logistics provider)
Revenue, Major Customer [Line Items]
Concentration risk percentage	[1]	37.00%	32.00%	31.00%	30.00%
Avnet (distributor)
Revenue, Major Customer [Line Items]
Concentration risk percentage		24.00%	31.00%	28.00%	28.00%
Flextronics (contract manufacturer)
Revenue, Major Customer [Line Items]
Concentration risk percentage		10.00%		10.00%

[1] *Less than 10% of total net revenues for period indicated.**Wintec provides vendor managed inventory support primarily for Cisco Systems, Inc.