Annual report pursuant to Section 13 and 15(d)

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

v3.7.0.1
Note 12 - Significant Customers and Industry Segment Information (Details Textual)
12 Months Ended
Mar. 25, 2017
Mar. 26, 2016
Number of Reportable Segments 2  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Microsource [Member]    
Concentration Risk, Percentage   32.00%
Export Sales [Member]    
Concentration Risk, Percentage 2.00% 4.00%
U.S. Government and Defense-Related Customers [Member]    
Concentration Risk, Percentage 78.00% 71.00%
First Customer [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Microsource [Member]    
Concentration Risk, Percentage 33.00%  
Second Customer [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Gigatronics Division [Member]    
Concentration Risk, Percentage 20.00% 11.00%
Third Customer [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Microsource [Member]    
Concentration Risk, Percentage 14.00%