Long-Term Debt (Detail) (USD $)	Sep. 30, 2013	Jun. 30, 2013
Debt Instrument [Line Items]
Total debt	$ 13,500,000	$ 16,400,000
Interest rate	2.20%	2.50%
Revolving line of credit [Member]
Debt Instrument [Line Items]
Outstanding	3,000,000	5,500,000
Interest rate	2.20%	2.50%
Term loans [Member]
Debt Instrument [Line Items]
Outstanding	$ 10,500,000	$ 10,900,000
Interest rate	2.20%	2.50%