Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Stock Option Compensation (Details)

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Note 4 - Stock Option Compensation (Details) - USD ($)
 3 Months Ended 6 Months Ended
Sep. 27, 2015
Sep. 28, 2014
Sep. 27, 2015
Sep. 28, 2014
Employee Stock Option [Member] | Cost of Sales [Member] | Fiscal Year 2014 [Member]        
Allocated Share Based Compensation Expense $ 6,000 $ 7,000 $ 13,000
Employee Stock Option [Member] | Cost of Sales [Member] | Fiscal Year 2013 [Member]        
Allocated Share Based Compensation Expense     12,000
Employee Stock Option [Member] | Cost of Sales [Member] | Fiscal Year 2015 [Member]        
Allocated Share Based Compensation Expense $ 12,000 $ 12,000 $ 28,000 $ 14,000
Employee Stock Option [Member] | Cost of Sales [Member] | Fiscal Year 2016 [Member]        
Allocated Share Based Compensation Expense 5,000 6,000
Employee Stock Option [Member] | Cost of Sales [Member]        
Allocated Share Based Compensation Expense $ 17,000 $ 18,000 41,000 $ 39,000
Employee Stock Option [Member] | Other Marketing and Administrative Expenses [Member] | Fiscal Year 2014 [Member]        
Allocated Share Based Compensation Expense 6,000 $ 7,000 13,000
Employee Stock Option [Member] | Other Marketing and Administrative Expenses [Member] | Fiscal Year 2013 [Member]        
Allocated Share Based Compensation Expense     12,000
Employee Stock Option [Member] | Other Marketing and Administrative Expenses [Member] | Fiscal Year 2015 [Member]        
Allocated Share Based Compensation Expense $ 11,000 $ 10,000 $ 24,000 $ 12,000
Employee Stock Option [Member] | Other Marketing and Administrative Expenses [Member] | Fiscal Year 2016 [Member]        
Allocated Share Based Compensation Expense 4,000 5,000
Employee Stock Option [Member] | Other Marketing and Administrative Expenses [Member]        
Allocated Share Based Compensation Expense $ 15,000 $ 16,000 36,000 $ 37,000
Employee Stock Option [Member] | Fiscal Year 2014 [Member]        
Allocated Share Based Compensation Expense 12,000 $ 14,000 26,000
Employee Stock Option [Member] | Fiscal Year 2013 [Member]        
Allocated Share Based Compensation Expense     24,000
Employee Stock Option [Member] | Fiscal Year 2015 [Member]        
Allocated Share Based Compensation Expense $ 23,000 $ 22,000 $ 52,000 $ 26,000
Employee Stock Option [Member] | Fiscal Year 2016 [Member]        
Allocated Share Based Compensation Expense 9,000 11,000
Employee Stock Option [Member]        
Allocated Share Based Compensation Expense 32,000 $ 34,000 77,000 $ 76,000
Allocated Share Based Compensation Expense $ 223,000 $ 212,000 $ 479,000 $ 427,000