Represents the amount of installment that will be received by the company in equal installments.

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Represents the number of equal installments wherein the company will the remaining proceeds.

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Represents the term of Escrow Deposit.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Repayment received or receivable for expenses incurred on behalf of a client or customer, other than those reimbursements received by landlords from tenants.

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Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature.

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Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts.

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Sale of Businesses (Details) $ in Thousands		1 Months Ended	3 Months Ended			12 Months Ended
Sale of Businesses (Details) $ in Thousands	Apr. 03, 2017 USD ($)	Nov. 30, 2015 USD ($)	May 31, 2017 USD ($)	May 31, 2016 USD ($) installment	Nov. 30, 2015 USD ($)	Aug. 31, 2017 USD ($)	Aug. 31, 2016 USD ($)	Aug. 31, 2015 USD ($)
Sale of Businesses
Proceeds from the sale of property and assets						$ 3,915	$ 1,729	$ 739
Acquisition related costs (Note 14)							365
Revenue
Sale of Businesses
Manufacturing services						740
Selling, General and Administrative Expenses
Sale of Businesses
Administrative expense fees						100
Other Income (Expense)
Sale of Businesses
Rental income						54
Fiber Optic Cable Components Product Line
Sale of Businesses
Total proceeds to be received	$ 3,858
Proceeds from the sale of property and assets	$ 3,858		$ 3,458
Pre-tax book gain from the sale of property and assets						$ 2,013
Term of Escrow Deposit	18 months
Fiber Optic Cable Components Product Line \| Other Noncurrent Asset
Sale of Businesses
Sale price held in escrow			$ 400
RodPack Business
Sale of Businesses
Proceeds from the sale of property and assets		$ 2,186		$ 229	$ 1,500
Pre-tax book gain from the sale of property and assets							1,031
Number of installments \| installment				3
Remaining balance							$ 457