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FAIR VALUE MEASUREMENTS (Details Textuals) $ in Thousands, $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2023 USD ($) | Apr. 30, 2023 CAD ($) | Apr. 30, 2022 USD ($) | Apr. 30, 2023 CAD ($) | Oct. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Business Combination, Reversal of Remaining Contingent Consideration, Liability | $ 9,057 |  | $ 0 |  |
Total liabilities | 56,831 |  |  |  | $ 82,803
Change in value of contingent consideration | $ 1,842 |  | $ (1,773) |  |
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 |  |  |
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 | $ 6,300 |  |  |  |
FY2021 Acquisition Subsidiary 1 | Flight Support Group [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 89.00% |  |  | 89.00% |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 26,700 |  |  |  |
Business Combination, Reversal of Remaining Contingent Consideration, Liability | 9,100 |  |  |  |
Total liabilities |  |  |  |  | 18,000
Change in value of contingent consideration | $ 8,900 |  |  |  |
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 | $ 10,000 |  |  |  |
Total liabilities | 8,500 |  |  |  |
Change in value of contingent consideration | 10,000 |  |  |  |
FY2020 Acquisition Subsidiary 1 | Canada, Dollars | Electronic Technologies 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 |  |  |  | $ 13,500 |
Total liabilities |  |  |  | $ 11,500 |
Change in value of contingent consideration |  | $ 13,500 |  |  |
FY 2017 Acquisition [Member] | Electronic Technologies 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 | 20,000 |  |  |  |
Total liabilities | $ 19,500 |  |  |  |
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 | $ 16,100 |  |  |  |
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 |  |  |  |
Total liabilities | 6,500 |  |  |  |
Aggregate LCP Liability [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Related liabilities of deferred compensation plans, specified as other long-term liabilities | $ 235,000 |  |  |  | $ 203,000

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