SEGMENT INFORMATION - Schedule of Depreciation and amortization (Details) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2026	Jul. 31, 2025
Depreciation and amortization:
Depreciation and amortization	$ 287	$ 470
Frequency Electronics Inc New York [Member]
Depreciation and amortization:
Depreciation and amortization	278	432
Frequency Electronics Inc Zyfer [Member]
Depreciation and amortization:
Depreciation and amortization	$ 9	$ 38

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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+ Details