FAIR VALUE MEASUREMENTS (Details Textuals) $ in Thousands, $ in Thousands	1 Months Ended	3 Months Ended				12 Months Ended
	Mar. 31, 2023 USD ($)	Oct. 31, 2023 USD ($)	Apr. 30, 2023 USD ($)	Jan. 31, 2023 USD ($)	Jan. 31, 2023 CAD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)	Oct. 31, 2023 CAD ($)
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration, liability		$ 71,136				$ 71,136	$ 82,803
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]						Selling, General and Administrative Expense	Selling, General and Administrative Expense
Business Combination, Reversal of Remaining Contingent Consideration, Liability						$ 9,057	$ 0	$ 0
Change in accrued contingent consideration						$ (686)	$ (7,631)	$ 1,246
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]						Selling, General and Administrative Expense	Selling, General and Administrative Expense
Fair Value, Inputs, Level 3 [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration, liability		71,136				$ 71,136	$ 82,803
Business Combination, Reversal of Remaining Contingent Consideration, Liability						9,057
Change in accrued contingent consideration						18,909	320
FY2023 Subsidiary 1 | Flight Support Group [Member]
Business Acquisition, Contingent Consideration [Line Items]
Amount of contingent purchase consideration, the company could be required to pay		17,500				17,500
Contingent consideration, liability		$ 17,300				$ 17,300
FY2022 Acquisition Subsidiary 1 | Electronic Technologies Group [Member]
Business Acquisition, Contingent Consideration [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		80.36%				80.36%			80.36%
Amount of contingent purchase consideration, the company could be required to pay		$ 12,100				$ 12,100
Contingent consideration, liability		$ 5,500				$ 5,500
FY2022 Acquisition Subsidiary 2 | Flight Support Group [Member]
Business Acquisition, Contingent Consideration [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		96.00%				96.00%			96.00%
Amount of contingent purchase consideration, the company could be required to pay		$ 27,400				$ 27,400
Contingent consideration, liability		$ 19,800				$ 19,800	12,700
FY2022 Acquisition Subsidiary 3 | Flight Support Group [Member]
Business Acquisition, Contingent Consideration [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		74.00%				74.00%			74.00%
Amount of contingent purchase consideration, the company could be required to pay		$ 14,100				$ 14,100
Contingent consideration, liability							9,100
Business Combination, Reversal of Remaining Contingent Consideration, Liability		$ 6,400
FY2021 Acquisition Subsidiary 1 | Flight Support Group [Member]
Business Acquisition, Contingent Consideration [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		89.00%				89.00%			89.00%
Amount of contingent purchase consideration, the company could be required to pay		$ 26,700				$ 26,700
Contingent consideration, liability							$ 18,000
Business Combination, Reversal of Remaining Contingent Consideration, Liability			$ 9,100
Change in accrued contingent consideration	$ 8,900
FY2020 Acquisition Subsidiary 1 [Member] | Electronic Technologies Group [Member]
Business Acquisition, Contingent Consideration [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		89.99%				89.99%			89.99%
Amount of contingent purchase consideration, the company could be required to pay		$ 9,700				$ 9,700
Contingent consideration, liability		8,600				8,600
Change in accrued contingent consideration				$ 10,000
FY 2017 Acquisition [Member] | Electronic Technologies Group [Member]
Business Acquisition, Contingent Consideration [Line Items]
Amount of contingent purchase consideration, the company could be required to pay		20,000				20,000
Contingent consideration, liability		$ 20,000				$ 20,000
Canada, Dollars | FY2020 Acquisition Subsidiary 1 [Member] | Electronic Technologies Group [Member]
Business Acquisition, Contingent Consideration [Line Items]
Amount of contingent purchase consideration, the company could be required to pay									$ 13,500
Contingent consideration, liability									$ 11,900
Change in accrued contingent consideration					$ 13,500