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