Substantial Net Sales to Certain Customers (Detail) (Customer Concentration Risk, USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Concentration Risk [Line Items]
Net Sales by Customer	$ 10,405	$ 11,607	$ 19,677	$ 24,317
% of Total Net Sales	84.00%	78.00%	72.00%	77.00%
Customer 1
Concentration Risk [Line Items]
Net Sales by Customer	7,335	8,056	15,059	16,481
% of Total Net Sales	59.00%	54.00%	55.00%	52.00%
Customer 2
Concentration Risk [Line Items]
Net Sales by Customer	1,709	3,551	4,618	7,836
% of Total Net Sales	14.00%	24.00%	17.00%	25.00%
Customer 3
Concentration Risk [Line Items]
Net Sales by Customer	$ 1,361
% of Total Net Sales	11.00%