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DEBT - Annual Maturities (Details) (USD $)
In Thousands, unless otherwise specified
Feb. 28, 2015
Aug. 31, 2014
Maturities of long-term debt    
2016 $ 14,792us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths  
2017 29,679us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo  
2018 12,626us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree  
2019 12,176us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour  
2020 32,021us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive  
Thereafter 3,826us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive  
Long-term Debt $ 105,120us-gaap_LongTermDebt [1] $ 91,439us-gaap_LongTermDebt [2]
[1] (3) The carrying amount cash assets assigned as collateral for this total was $24.0 million and the carrying amount on non-cash assets assigned as collateral for this total was $103.5 million.
[2] (1) The carrying amount cash assets assigned as collateral for this total was $24.6 million and the carrying amount on non-cash assets assigned as collateral for this total was $84.2 million.