REDEEMABLE NONCONTROLLING INTERESTS (Put Rights) (Details)	12 Months Ended
	Oct. 31, 2019
Electronic Technologies Group [Member] | Subsidiary One [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2005
Percentage of interest acquired in the subsidiary	95.90%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020	[1]
Put Rights Purchase Period	4 years	[2]
Electronic Technologies Group [Member] | Subsidiary Four [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2009
Percentage of interest acquired in the subsidiary	82.50%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020	[1]
Put Rights Purchase Period	1 year
Electronic Technologies Group [Member] | Subsidiary Five [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2012
Percentage of interest acquired in the subsidiary	78.00%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020	[1]
Put Rights Purchase Period	2 years
Electronic Technologies Group [Member] | Subsidiary Ten [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2015
Percentage of interest acquired in the subsidiary	80.10%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020
Put Rights Purchase Period	2 years
Electronic Technologies Group [Member] | Subsidiary Thirteen [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2018
Percentage of interest acquired in the subsidiary	85.00%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2021
Put Rights Purchase Period	1 year
Electronic Technologies Group [Member] | Subsidiary Fourteen [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2019
Percentage of interest acquired in the subsidiary	92.70%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2023
Put Rights Purchase Period	4 years
Electronic Technologies Group [Member] | Subsidiary Fifteen [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2019
Percentage of interest acquired in the subsidiary	85.00%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2024
Put Rights Purchase Period	4 years
Electronic Technologies Group [Member] | Subsidiary Seventeen [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2019
Percentage of interest acquired in the subsidiary	75.00%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2024
Put Rights Purchase Period	4 years
Flight Support Group [Member] | Subsidiary Two [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2006
Percentage of interest acquired in the subsidiary	80.10%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020	[1]
Put Rights Purchase Period	4 years
Flight Support Group [Member] | Subsidiary Three [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2008
Percentage of interest acquired in the subsidiary	82.30%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020	[1]
Put Rights Purchase Period	5 years
Flight Support Group [Member] | Subsidiary Six [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2012
Percentage of interest acquired in the subsidiary	84.00%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020	[1]
Put Rights Purchase Period	4 years
Flight Support Group [Member] | Subsidiary Seven [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2012
Percentage of interest acquired in the subsidiary	80.10%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020	[1]
Put Rights Purchase Period	4 years
Flight Support Group [Member] | Subsidiary Eight [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2015
Percentage of interest acquired in the subsidiary	80.00%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020	[1]
Put Rights Purchase Period	4 years
Flight Support Group [Member] | Subsidiary Nine [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2015
Percentage of interest acquired in the subsidiary	80.10%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2020
Put Rights Purchase Period	4 years
Flight Support Group [Member] | Subsidiary Eleven [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2015
Percentage of interest acquired in the subsidiary	80.10%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2022
Put Rights Purchase Period	4 years
Flight Support Group [Member] | Subsidiary Twelve [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2017
Percentage of interest acquired in the subsidiary	80.10%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2022
Put Rights Purchase Period	2 years	[3]
Flight Support Group [Member] | Subsidiary Sixteen [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition	Oct. 31, 2019
Percentage of interest acquired in the subsidiary	80.10%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2026
Put Rights Purchase Period	4 years

[1] (1) Currently puttable

[2] (2) A portion is to be purchased in a lump sum

[3] (3) The second purchase is to be made two years after the first Put Right Year