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SEGMENT INFORMATION (Schedule of Net Sales and Service Fees by Product Category) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Revenue from External Customer [Line Items]
Net Sales and Service Fees		$ 83,051	$ 78,752	$ 70,424	$ 68,444	$ 75,931	$ 60,770	$ 58,222	$ 48,744	$ 300,671	$ 243,667	$ 227,289
Computerized Machine Tools [Member]
Revenue from External Customer [Line Items]
Net Sales and Service Fees										261,710	209,311	195,618
Computer Control Systems and Software [Member]
Revenue from External Customer [Line Items]
Net Sales and Service Fees	[1]									2,870	2,324	2,078
Service Parts [Member]
Revenue from External Customer [Line Items]
Net Sales and Service Fees										27,501	24,255	21,908
Service Fees [Member]
Revenue from External Customer [Line Items]
Net Sales and Service Fees										$ 8,590	$ 7,777	$ 7,685
[1] Amounts shown do not include computer control systems and software sold as an integrated component of computerized machine systems.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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