v3.26.1
Segment Information (Details)
$ in Thousands
12 Months Ended
Apr. 30, 2026
USD ($)
segment
Apr. 30, 2025
USD ($)
Segment Information (Details) [Line Items]    
Number of Reportable Segments (in segment) | segment 2  
Number of Operating Segments (in segment) | segment 2  
Revenues $ 63,227 $ 69,811
Frequency Electronics Inc New York [Member]    
Segment Information (Details) [Line Items]    
Number Of Principal Markets 3  
Other Operating Income $ 11,500 9,100
Frequency Electronics Inc Zyfer [Member]    
Segment Information (Details) [Line Items]    
Other Operating Income 3,200 2,600
One Asian Country [Member]    
Segment Information (Details) [Line Items]    
Selling and Marketing Expense 3,800 3,500
Customer One [Member] | Frequency Electronics Inc New York [Member]    
Segment Information (Details) [Line Items]    
Revenues 7,000 2,900
Customer One [Member] | Frequency Electronics Inc Zyfer [Member]    
Segment Information (Details) [Line Items]    
Revenues 8,100 26,900
Customer Two [Member] | Frequency Electronics Inc New York [Member]    
Segment Information (Details) [Line Items]    
Revenues 5,500 $ 3,400
Customer Three [Member] | Frequency Electronics Inc New York [Member]    
Segment Information (Details) [Line Items]    
Revenues 5,300  
Customer Four [Member] | Frequency Electronics Inc New York [Member]    
Segment Information (Details) [Line Items]    
Revenues $ 5,100  
Customer Concentration Risk [Member] | U.S. Government and U.S. Government Subcontractors [Member] | Revenue Benchmark [Member]    
Segment Information (Details) [Line Items]    
Concentration Risk, Percentage 91.00% 94.00%