SEGMENT INFORMATION (Schedule of Net Sales and Service Fees by Product Category) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Revenue from External Customer [Line Items]
Net Sales and Service Fees		$ 75,931	$ 60,770	$ 58,222	$ 48,744	$ 66,354	$ 52,403	$ 52,029	$ 56,503	$ 243,667	$ 227,289	$ 219,383
Computerized Machine Tools [Member]
Revenue from External Customer [Line Items]
Net Sales and Service Fees	[1]									209,311	195,618	189,712
Computer Control Systems and Software [Member]
Revenue from External Customer [Line Items]
Net Sales and Service Fees	[2]									2,324	2,078	3,085
Service Parts [Member]
Revenue from External Customer [Line Items]
Net Sales and Service Fees										24,255	21,908	19,375
Service Fees [Member]
Revenue from External Customer [Line Items]
Net Sales and Service Fees										$ 7,777	$ 7,685	$ 7,211

[1] Amounts shown include sales of Milltronics and Takumi computerized machine tools to third parties since the respective dates of acquisitions.

[2] Amounts shown do not include computer control systems and software sold as an integrated component of computerized machine systems.