Segment Information - Schedule of Depreciation and amortization (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2026	Apr. 30, 2025
Depreciation and amortization:
Depreciation and amortization	$ 1,893	$ 2,055
Frequency Electronics Inc New York [Member]
Depreciation and amortization:
Depreciation and amortization	1,799	1,932
Frequency Electronics Inc Zyfer [Member]
Depreciation and amortization:
Depreciation and amortization	94	123
Corporate Segment [Member]
Depreciation and amortization:
Depreciation and amortization	$ 0	$ 0

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