Discontinued Operations Operating Results, Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended
Oct. 31, 2015	Oct. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Net sales		$ 0
Loss from operations of discontinued businesses		(1,201)
Income tax benefit on sale of discontinued operations		288
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax		(487)
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation		61
Loss from discontinued operations, net of income taxes	$ 0	$ (1,915)

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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