Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Significant Customer and Industry Segment Information (Details) - Segment Reporting Information

v2.4.1.9
Note 8 - Significant Customer and Industry Segment Information (Details) - Segment Reporting Information (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 27, 2014
Dec. 28, 2013
Dec. 27, 2014
Dec. 28, 2013
Mar. 29, 2014
Segment Reporting Information [Line Items]          
Assets $ 8,307,000us-gaap_Assets $ 7,162,000us-gaap_Assets $ 8,307,000us-gaap_Assets $ 7,162,000us-gaap_Assets $ 7,593,000us-gaap_Assets
Net sales 4,509,000us-gaap_SalesRevenueNet 3,417,000us-gaap_SalesRevenueNet 14,127,000us-gaap_SalesRevenueNet 10,404,000us-gaap_SalesRevenueNet  
Net income (loss) 67,000us-gaap_NetIncomeLoss (718,000)us-gaap_NetIncomeLoss (283,000)us-gaap_NetIncomeLoss (2,476,000)us-gaap_NetIncomeLoss (3,742,000)us-gaap_NetIncomeLoss
Gigatronics [Member]          
Segment Reporting Information [Line Items]          
Assets 5,431,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
5,341,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
5,431,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
5,341,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
 
Net sales 2,021,000us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
1,539,000us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
6,638,000us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
5,336,000us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
 
Net income (loss) (1,266,000)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
(1,209,000)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
(3,962,000)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
(2,961,000)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= giga_GigatronicsMember
 
Microsource [Member]          
Segment Reporting Information [Line Items]          
Assets 2,876,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
1,821,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
2,876,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
1,821,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
 
Net sales 2,488,000us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
1,878,000us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
7,489,000us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
5,068,000us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
 
Net income (loss) $ 1,333,000us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
$ 491,000us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
$ 3,679,000us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember
$ 485,000us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= giga_MicrosourceMember