SELECTED FINANCIAL STATEMENT INFORMATION (Costs and Estimated Earnings on Uncompleted POC Contracts) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Apr. 30, 2016	Oct. 31, 2015
Costs incurred on uncompleted contracts	$ 31,256	$ 22,645
Estimated Earnings	21,423	16,116
Estimated Revenue on Completed Percentage-of-Completion Contracts	52,679	38,761
Billed Contracts Receivable	(44,993)	(36,442)
Unbilled Contracts Receivable	7,686	2,319
Included in the accompanying Condensed Consolidated Balance Sheets under the following captions:
Accounts receivable, net (costs and estimated earnings in excess of billings)	11,081	6,263
Accrued expenses and other current liabilities (billings in excess of costs and estimated earnings)	(3,395)	(3,944)
Unbilled Contracts Receivable	$ 7,686	$ 2,319

Estimated earnings on uncompleted percentage of completion contracts.

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Total estimated revenue, including billed and unbilled, from completed percentage of completion contracts.

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Amounts due for billed services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the Company and, at a minimum, one other party. An example would be amounts billed to customers under contracts or programs but not paid as of the balance sheet date.

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Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date.

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Costs incurred and are directly related to generating contract revenues.

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Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings which is expected to be collected within one year or the normal operating cycle, if longer.

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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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