Significant Customers - Schedule of Percentage of Net Sales and Net Accounts Receivable Due from Customers from Continuing Operations (Detail)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Significant Customers [Line Items]
Percentage of net sales due to customers	100.00%	100.00%
Percentage of net accounts receivable due from customers	100.00%	100.00%
BMW [Member]
Significant Customers [Line Items]
Percentage of net sales due to customers	18.00%	19.00%
Percentage of net accounts receivable due from customers	12.00%	13.00%
Audi/Volkswagen [Member]
Significant Customers [Line Items]
Percentage of net sales due to customers	13.00%	14.00%
Percentage of net accounts receivable due from customers	9.00%	11.00%
Toyota [Member]
Significant Customers [Line Items]
Percentage of net sales due to customers	10.00%	10.00%
Percentage of net accounts receivable due from customers	6.00%	7.00%
Chrysler [Member]
Significant Customers [Line Items]
Percentage of net sales due to customers	9.00%	7.00%
Percentage of net accounts receivable due from customers	12.00%	7.00%
Other Customers [Member]
Significant Customers [Line Items]
Percentage of net sales due to customers	50.00%	50.00%
Percentage of net accounts receivable due from customers	61.00%	62.00%