Substantial Net Sales to Certain Customers (Detail) (Customer Concentration Risk, USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Concentration Risk [Line Items]
Net Sales by Customer	$ 11,242	$ 10,856	$ 29,244	$ 35,174
% of Total Net Sales	77.00%	72.00%	70.00%	76.00%
Customer 1
Concentration Risk [Line Items]
Net Sales by Customer	7,304	7,963	22,172	24,444
% of Total Net Sales	50.00%	53.00%	53.00%	53.00%
Customer 2
Concentration Risk [Line Items]
Net Sales by Customer	2,455	2,893	7,072	10,730
% of Total Net Sales	17.00%	19.00%	17.00%	23.00%
Customer 3
Concentration Risk [Line Items]
Net Sales by Customer	$ 1,483
% of Total Net Sales	10.00%