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Long-Term Debt - Summary of Long-Term Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Jun. 30, 2012
Debt Disclosure [Line Items]    
Term Loan $ 0 $ 16,086
Capital lease obligations 90 176
Total Long Term Debt 18,270 23,090
Less current maturities (9,542) (9,350)
Total Long-term debt, excluding current maturities, total 8,728 13,740
Callaway RDA Loan [Member]
   
Debt Disclosure [Line Items]    
RDA Loan 4,908 4,376
Trace RDA Loan [Member]
   
Debt Disclosure [Line Items]    
RDA Loan 9,047 0
SHPP RDA Loan [Member]
   
Debt Disclosure [Line Items]    
RDA Loan 2,073 0
Carmichael [Member]
   
Debt Disclosure [Line Items]    
Carmichael Notes $ 2,152 $ 2,452