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Long-Term Debt (Detail) - USD ($)
$ in Thousands
Jun. 30, 2015
Jun. 30, 2014
Debt Instrument [Line Items]    
Total debt $ 10,700 $ 11,800
Interest rate 1.70% 1.70%
Revolving line of credit [Member]    
Debt Instrument [Line Items]    
Outstanding $ 3,000 $ 2,500
Interest rate 1.70% 1.70%
Term loans [Member]    
Debt Instrument [Line Items]    
Outstanding $ 7,700 $ 9,300
Interest rate 1.70% 1.70%