Concentrations of Risks (Details)	3 Months Ended							12 Months Ended	0 Months Ended
	Jun. 30, 2014 Net revenue Sales risk customer	Jun. 30, 2013 Net revenue Sales risk customer	Jun. 30, 2014 Net revenue Sales risk Minimum	Jun. 30, 2013 Net revenue Sales risk Minimum	Jun. 30, 2014 Net revenue Electronics distributor risk	Jun. 30, 2013 Net revenue Electronics distributor risk	Jun. 30, 2014 Accounts receivable Sales risk customer	Mar. 31, 2013 Accounts receivable Sales risk customer	Mar. 31, 2014 Accounts receivable Sales risk Maximum	Dec. 31, 2013 Accounts receivable Sales risk Maximum
Concentration of Risk
Number of customers exceeding threshold	1	1					0	0
Concentration risk, percentage			10.00%	10.00%	47.00%	46.00%			10.00%	10.00%