Long-Term Debt (Detail) (USD $)	Jun. 30, 2013	Jun. 30, 2012
Debt Instrument [Line Items]
Total debt	$ 16,400,000	$ 20,257,000
Interest rate	2.50%	3.10%
Revolving line of credit [Member]
Debt Instrument [Line Items]
Outstanding	5,500,000	7,757,000
Interest rate	2.50%	3.10%
Term loans [Member]
Debt Instrument [Line Items]
Outstanding	$ 10,900,000	$ 12,500,000
Interest rate	2.50%	3.10%