SEGMENT INFORMATION (Details) - Disaggregation of Revenue - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 8,949	$ 12,936	$ 17,153	$ 25,890
Frequency Electronics Inc New York [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,680	10,381	14,534	20,543
Frequency Electronics Inc Zyfer [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,561	2,648	3,292	5,783
POC Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	8,654	12,228	16,607	24,629
POC Revenue [Member] | Frequency Electronics Inc New York [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,173	9,928	13,451	19,529
POC Revenue [Member] | Frequency Electronics Inc Zyfer [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,481	2,300	3,156	5,100
POT Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	295	708	546	1,261
POT Revenue [Member] | Frequency Electronics Inc New York [Member]
Disaggregation of Revenue [Line Items]
Revenue	507	453	1,083	1,014
POT Revenue [Member] | Frequency Electronics Inc Zyfer [Member]
Disaggregation of Revenue [Line Items]
Revenue	80	348	136	683
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	(292)	(93)	(673)	(436)
Intersegment Eliminations [Member] | POC Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Intersegment Eliminations [Member] | POT Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ (292)	$ (93)	$ (673)	$ (436)