Debt (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended		1 Months Ended			1 Months Ended			1 Months Ended
	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2013 Revolving Loans	Dec. 31, 2010 Revolving Loans	Jun. 30, 2012 Revolving Loans	Dec. 31, 2010 Term Loan	Mar. 31, 2013 Term Loan Installment	Jun. 30, 2012 Term Loan	Jun. 30, 2011 Mortgage Payable [Member]
Debt Instrument [Line Items]
Revolving loans, maximum amount				$ 40,000		$ 40,000
Revolving loans, expiration date				Dec. 31, 2015
Proceeds from bank loans	7,000		14,000			40,000
Bank loans, interest rate			2.06%				2.06%		5.92%
Bank loans outstanding			14,000		11,000		26,250	31,000
Term loans, number of installments							20
Term loan classified as short-term	7,250
Open letters of credit	47	199
Mortgage payable	$ 3,618	$ 3,765							$ 3,947
Mortgage payable, amortization period									20 years
Mortgage payable, maturity date									Jun. 30, 2021