Concentrations of Risks (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Net revenue | Sales risk
Concentration of Risk
Concentration Risk, Customer	1	1	1	1
Net revenue | Sales risk | Minimum
Concentration of Risk
Concentration risk, percentage	10.00%	10.00%	10.00%	10.00%
Net revenue | Electronics distributor risk
Concentration of Risk
Concentration risk, percentage			46.00%	41.00%
Accounts receivable | Sales risk
Concentration of Risk
Concentration Risk, Customer	0	0	0
Accounts receivable | Sales risk | Maximum
Concentration of Risk
Concentration risk, percentage					10.00%
Accounts receivable | Credit Concentration Risk [Member]
Concentration of Risk
Concentration Risk, Customer				0
Accounts receivable | Credit Concentration Risk [Member] | Maximum
Concentration of Risk
Concentration risk, percentage			10.00%