Long-Term Debt - Summary of Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Jun. 30, 2014
Debt Disclosure [Line Items]
Other	$ 170us-gaap_OtherLongTermDebt
Total	12,314us-gaap_LongTermDebt	12,509us-gaap_LongTermDebt
Total	12,314us-gaap_LongTermDebt	12,509us-gaap_LongTermDebt
Less current maturities	(840)us-gaap_LongTermDebtCurrent	(561)us-gaap_LongTermDebtCurrent
Total Long-term debt, excluding current maturities, total	11,474us-gaap_LongTermDebtNoncurrent	11,948us-gaap_LongTermDebtNoncurrent
Trace RDA Loan [Member]
Debt Disclosure [Line Items]
RDA Loan	8,290	8,624
SHPP RDA Loan [Member]
Debt Disclosure [Line Items]
RDA Loan	2,002	2,033
Carmichael Notes [Member]
Debt Disclosure [Line Items]
Carmichael Notes	$ 1,852	$ 1,852

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

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-Paragraph 1

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Including both current and noncurrent portions, carrying amount as of the balance sheet date of other forms of debt not elsewhere specified in the taxonomy with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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