v3.26.1
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Revenues $ 63,227 $ 69,811
Cost of revenues 44,831 39,714
Research and development expenses 5,994 6,076
Operating (loss) income (3,001) 11,732
NEW YORK    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Revenues 45,651 53,269
CALIFORNIA    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Revenues 21,731 18,660
Frequency Electronics Inc New York [Member]    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Operating (loss) income (5,442) 11,514
Frequency Electronics Inc Zyfer [Member]    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Operating (loss) income 3,813 743
Inter Segment [Member]    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Operating (loss) income (673) 98
Corporate Segment [Member]    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Operating (loss) income (699) (623)
Operating Segments [Member]    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Revenues (4,155) (2,118)
Cost of revenues (3,482) (2,215)
Research and development expenses 5,994 6,076
Operating Segments [Member] | NEW YORK    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Revenues 45,651 53,269
Cost of revenues 35,816 29,331
Research and development expenses 3,800 3,374
Operating Segments [Member] | CALIFORNIA    
Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) [Line Items]    
Revenues 21,731 18,660
Cost of revenues 12,497 12,598
Research and development expenses $ 2,194 $ 2,702