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Inventories - Additional Information (Detail) (USD $)
12 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Inventory Disclosure [Abstract]    
Excess of current costs at FIFO over LIFO stated values $ 5,000,000us-gaap_ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue $ 5,000,000us-gaap_ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue
Decrease in cost of sales 87,000ebf_DecreaseInCostOfSalesAsResultOfLiquidationOfLifoInventoryQuantities 25,000ebf_DecreaseInCostOfSalesAsResultOfLiquidationOfLifoInventoryQuantities
Net earnings $ 55,000ebf_IncreaseInNetEarningsAsResultOfLiquidationOfLifoInventoryQuantities $ 16,000ebf_IncreaseInNetEarningsAsResultOfLiquidationOfLifoInventoryQuantities