Long-Term Debt - Summary of Long-Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Jun. 30, 2016	Feb. 16, 2016
Debt Instrument [Line Items]
Capital lease obligations and other	$ 17	$ 32
Total	7,338	11,188
Total	7,338	11,188
Less unamortized debt issuance costs	(508)	(736)
Less current maturities	(503)	(7,473)
Total Long-term debt, excluding current maturities, total	6,327	2,979
Trace RDA Loan [Member]
Debt Instrument [Line Items]
RDA Loan	7,321	7,698
SHPP RDA Loan [Member]
Debt Instrument [Line Items]
RDA Loan	0	1,950
Carmichael Notes [Member]
Debt Instrument [Line Items]
Carmichael Notes	$ 0	$ 1,508	$ 1,255

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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