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Long-Term Debt - Summary of Long-Term Debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2016
Jun. 30, 2016
Feb. 16, 2016
Debt Instrument [Line Items]      
Capital lease obligations and other $ 27 $ 32  
Total 9,542 11,188  
Total 9,542 11,188  
Less unamortized debt issuance costs (719) (736)  
Less current maturities (7,113) (7,473)  
Total Long-term debt, excluding current maturities, total 1,710 2,979  
Trace RDA Loan [Member]      
Debt Instrument [Line Items]      
RDA Loan 7,575 7,698  
SHPP RDA Loan [Member]      
Debt Instrument [Line Items]      
RDA Loan 1,940 1,950  
Carmichael Notes [Member]      
Debt Instrument [Line Items]      
Carmichael Notes $ 0 $ 1,508 $ 1,255