Information About Major Customers (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012 customer	Jun. 30, 2011	Jun. 30, 2010
Volkswagen Group [Member]
Information About Major Customers [Line Items]
Accounts receivable	1.6
General Motors [Member]
Information About Major Customers [Line Items]
Accounts receivable	3.6
GM And VW [Member]
Information About Major Customers [Line Items]
Revenue of major customers, percentage	22.00%
Automotive And End Users [Member]
Information About Major Customers [Line Items]
Revenue of major customers, percentage	51.00%	42.00%	42.00%
Number Of Major Customers	4
Manufacturing Line Builders, System Integrators and OEMs [Member]
Information About Major Customers [Line Items]
Revenue of major customers, percentage	13.00%	11.00%	13.00%
IBU [Member]
Information About Major Customers [Line Items]
Number Of Major Customers	4