SELECTED FINANCIAL STATEMENT INFORMATION, Costs and Estimated Earnings on Uncompleted Percentage-of-Completion Contracts (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Costs incurred on uncompleted contracts	$ 29,491	$ 19,086
Estimated earnings	19,902	13,887
Total cost incurred and estimated earnings on uncompleted percentage-of completed contracts	49,393	32,973
Less: Billings to date	(41,262)	(39,142)
Unbilled Contracts Receivable	8,131
Billings in Excess of Cost and Estimated Earnings		(6,169)
Included in the accompanying Consolidated Balance Sheets under the following captions:
Accounts receivable, net (costs and estimated earnings in excess of billings)	9,377	4,839
Accrued expenses and other current liabilities (billings in excess of costs and estimated earnings)	(1,246)	(11,008)
Unbilled Contracts Receivable	$ 8,131
Billings in Excess of Cost and Estimated Earnings		$ (6,169)