FAIR VALUE MEASUREMENTS (Details Textuals) $ in Thousands, $ in Thousands	6 Months Ended
	Apr. 30, 2024 USD ($)	Apr. 30, 2023 USD ($)	Apr. 30, 2024 CAD ($)	Oct. 31, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Reversal of Remaining Contingent Consideration, Liability	$ 0	$ 9,057
Total liabilities	45,917			$ 71,136
Change in value of contingent consideration	$ (5,326)	$ 1,842
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, General and Administrative Expense
FY2023 Acquisition Subsidiary 1 | Flight Support Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 17,500
Business Combination, Contingent Consideration, Liability, Current	$ 11,000			17,300
FY2022 Acquisition Subsidiary 1 | Electronic Technologies Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	80.36%		80.36%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 12,100
Total liabilities	$ 5,600
FY2022 Acquisition Subsidiary 2 | Flight Support Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	96.00%		96.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 27,400
Total liabilities	$ 20,400
FY2022 Acquisition Subsidiary 3 | Flight Support Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	74.00%		74.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 14,100
FY2020 Acquisition Subsidiary 1 | Electronic Technologies Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	89.99%		89.99%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 9,900		$ 13,500
Total liabilities	9,000		$ 12,300
FY 2017 Acquisition [Member] | Electronic Technologies Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in value of contingent consideration	20,000
Aggregate LCP Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Liability, Classified, Noncurrent	$ 284,000			$ 226,200