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Long-Term Debt (Carmichael Notes) - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 09, 2016
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Jun. 30, 2016
Feb. 16, 2016
Apr. 22, 2008
Debt Instrument [Line Items]                
Gain (loss) on extinguishment of debt   $ 0 $ 0 $ (243) $ 0      
Carmichael Notes [Member]                
Debt Instrument [Line Items]                
Loan agreement amount               $ 3,000
Interest rate percentage               8.00%
Date of loan agreement       Apr. 22, 2008        
Principal and interest payment       $ 185        
Carmichael Notes   $ 0   $ 0   $ 1,508 $ 1,255  
Note due date       Oct. 22, 2017        
Notes paid $ 1,508              
Accrued interest forgiven $ 46              
Gain (loss) on extinguishment of debt       $ 46