Long-Term Debt (SHPP RDA Loan) - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Dec. 16, 2016	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Oct. 31, 2012
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt		$ 0	$ 0	$ (243)	$ 0
SHPP RDA Loan [Member]
Debt Instrument [Line Items]
Principal payment	$ 1,933
Early repayment penalty	97
Unamortized prepaid loan costs	$ 192
Gain (loss) on extinguishment of debt				$ (289)
SHPP RDA Loan [Member] | Subsidiaries [Member]
Debt Instrument [Line Items]
Loan agreement amount						$ 2,100
Date of loan agreement				Oct. 31, 2012