Concentrations of Risks (Details)	3 Months Ended	12 Months Ended
Jun. 30, 2013 Net revenue Sales risk customer	Jun. 30, 2012 Net revenue Sales risk customer	Jun. 30, 2013 Net revenue Electronics distributor risk	Jun. 30, 2012 Net revenue Electronics distributor risk	Jun. 30, 2013 Accounts receivable Sales risk customer	Mar. 31, 2013 Accounts receivable Sales risk customer
Concentration of Risk
Number of customers whose accounts receivable balances exceeded 10% of gross accounts receivable	2	1			0	0
Concentration risk, percentage			46.00%	46.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

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-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

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-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

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-Section 50

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-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

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