Segment Information (Details) - Schedule of Reconciliation of Assets from Segment to Consolidated - USD ($) $ in Thousands	Apr. 30, 2023	Apr. 30, 2022
Identifiable assets:
Identifiable Assets	$ 74,496	$ 84,760
Frequency Electronics Inc New York [Member]
Identifiable assets:
Identifiable Assets	39,005	40,888
Frequency Electronics Inc Zyfer [Member]
Identifiable assets:
Identifiable Assets	10,699	10,522
Inter Segment [Member]
Identifiable assets:
Identifiable Assets	(58)	(126)
Corporate Segment [Member]
Identifiable assets:
Identifiable Assets	$ 24,850	$ 33,476