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 9 Months Ended
Dec. 27, 2015
Dec. 28, 2014
Dec. 27, 2015
Dec. 28, 2014
Cost of Sales [Member] | Employee Stock Option [Member] | Fiscal Year 2014 [Member]        
Allocated Share Based Compensation Expense $ 6,000 $ 7,000 $ 19,000
Cost of Sales [Member] | Employee Stock Option [Member] | Fiscal Year 2013 [Member]        
Allocated Share Based Compensation Expense     12,000
Cost of Sales [Member] | Employee Stock Option [Member] | Fiscal Year 2015 [Member]        
Allocated Share Based Compensation Expense $ 12,000 $ 12,000 $ 40,000 $ 26,000
Cost of Sales [Member] | Employee Stock Option [Member] | Fiscal Year 2016 [Member]        
Allocated Share Based Compensation Expense 5,000 11,000
Cost of Sales [Member] | Employee Stock Option [Member]        
Allocated Share Based Compensation Expense $ 17,000 $ 18,000 58,000 $ 57,000
Other Marketing and Administrative Expenses [Member] | Employee Stock Option [Member] | Fiscal Year 2014 [Member]        
Allocated Share Based Compensation Expense 6,000 $ 7,000 19,000
Other Marketing and Administrative Expenses [Member] | Employee Stock Option [Member] | Fiscal Year 2013 [Member]        
Allocated Share Based Compensation Expense     12,000
Other Marketing and Administrative Expenses [Member] | Employee Stock Option [Member] | Fiscal Year 2015 [Member]        
Allocated Share Based Compensation Expense $ 10,000 $ 10,000 $ 34,000 $ 22,000
Other Marketing and Administrative Expenses [Member] | Employee Stock Option [Member] | Fiscal Year 2016 [Member]        
Allocated Share Based Compensation Expense 4,000 9,000
Other Marketing and Administrative Expenses [Member] | Employee Stock Option [Member]        
Allocated Share Based Compensation Expense $ 14,000 $ 16,000 50,000 $ 53,000
Employee Stock Option [Member] | Fiscal Year 2014 [Member]        
Allocated Share Based Compensation Expense 12,000 $ 14,000 38,000
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 $ 22,000 $ 22,000 $ 74,000 $ 48,000
Employee Stock Option [Member] | Fiscal Year 2016 [Member]        
Allocated Share Based Compensation Expense 9,000 20,000
Employee Stock Option [Member]        
Allocated Share Based Compensation Expense 31,000 $ 34,000 108,000 $ 110,000
Allocated Share Based Compensation Expense $ 212,000 $ 225,000 $ 691,000 $ 652,000