Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Note 12 - Significant Customers and Industry Segment Information (Details Textual)
12 Months Ended
Mar. 31, 2018
Mar. 25, 2017
Number of Reportable Segments 2  
Number of Major Customers 2  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]    
Number of Major Customers 2  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | U.S. Government and Defense-related Customers [Member]    
Concentration Risk, Percentage 88.00% 78.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | First Customer [Member] | Microsource [Member]    
Concentration Risk, Percentage 29.00% 33.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Second Customer [Member] | Gigatronics Division [Member]    
Concentration Risk, Percentage 20.00% 20.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Third Customer [Member] | Microsource [Member]    
Concentration Risk, Percentage 41.00% 14.00%
Export Sales [Member]    
Concentration Risk, Percentage 8.00% 2.00%