Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Significant Customer and Industry Segment Information (Details Textual)

v3.20.4
Note 12 - Significant Customer and Industry Segment Information (Details Textual)
3 Months Ended 9 Months Ended
Dec. 26, 2020
Dec. 28, 2019
Dec. 26, 2020
Dec. 28, 2019
Revenue Benchmark [Member] | Customer Concentration Risk [Member]        
Number of Major Customers 3 2 3 3
Concentration Risk, Percentage 95.00% 77.00% 89.00% 89.00%
Gigatronics Division [Member]        
Percentage of Recorded Operating Expenses     100.00%  
Microsource [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer One dd[Member]        
Concentration Risk, Percentage 54.00%      
Microsource [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Two [Member]        
Concentration Risk, Percentage 25.00% 32.00%    
Microsource [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Three [Member]        
Concentration Risk, Percentage 16.00%      
Microsource [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer One [Member]        
Concentration Risk, Percentage   45.00% 55.00% 45.00%
Microsource segment and the Giga-tronics Division [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Two and Three [Member]        
Concentration Risk, Percentage     34.00% 44.00%