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Product warranty	6 Months Ended
Product warranty	Dec. 31, 2012
Product warranty [Abstract]
Product Warranty Disclosure [Text Block]	Product warranty In the ordinary course of business, the Company warrants its products against defects in design, materials and workmanship over various time periods. The warranty accrual as of December 31, 2012 and June 30, 2012 is immaterial to the financial position of the Company and the change in the accrual for the current quarter and first six months of fiscal 2013 is immaterial to the Company’s results of operations and cash flows.