Long-Term Debt - Summary of Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013
Debt Disclosure [Line Items]
Capital lease obligations	$ 69	$ 90
Total Long Term Debt	18,111	18,270
Less current maturities	(9,425)	(9,542)
Total Long-term debt, excluding current maturities, total	8,686	8,728
Callaway RDA Loan [Member]
Debt Disclosure [Line Items]
Long Term Debt	4,882	4,908
Trace RDA Loan [Member]
Debt Disclosure [Line Items]
Long Term Debt	8,945	9,047
SHPP RDA Loan [Member]
Debt Disclosure [Line Items]
Long Term Debt	2,063	2,073
Carmichael [Member]
Debt Disclosure [Line Items]
Long Term Debt	$ 2,152	$ 2,152

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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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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.

+ References

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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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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