Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Compensaiton Expense Associated with Non-vested Stock Grants (Details)

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Note 4 - Compensaiton Expense Associated with Non-vested Stock Grants (Details) - USD ($)
 3 Months Ended 6 Months Ended
Sep. 27, 2015
Sep. 28, 2014
Sep. 27, 2015
Sep. 28, 2014
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2011 [Member] | Employee [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation $ 12,000 $ 41,000 $ 48,000 $ 82,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2011 [Member] | Non Employee Directors [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2011 [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation $ 12,000 $ 41,000 $ 48,000 $ 82,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2013 [Member] | Employee [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation  
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2013 [Member] | Non Employee Directors [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation $ 7,000 $ 27,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2013 [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation $ 7,000 $ 27,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2014 [Member] | Employee [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2014 [Member] | Non Employee Directors [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation $ 8,000 $ 23,000 $ 31,000 $ 46,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2014 [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 8,000 23,000 31,000 46,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2015 [Member] | Employee [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 89,000 89,000 178,000 178,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2015 [Member] | Non Employee Directors [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 28,000 18,000 56,000 18,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2015 [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 117,000 $ 107,000 234,000 $ 196,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2016 [Member] | Employee [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 35,000 70,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2016 [Member] | Non Employee Directors [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 19,000 19,000
Other Marketing and Administrative Expenses [Member] | Fiscal Year 2016 [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 54,000 89,000
Other Marketing and Administrative Expenses [Member] | Employee [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 136,000 $ 130,000 296,000 $ 260,000
Other Marketing and Administrative Expenses [Member] | Non Employee Directors [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 55,000 48,000 106,000 91,000
Other Marketing and Administrative Expenses [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 191,000 178,000 402,000 351,000
Allocated share-based compensation $ 223,000 $ 212,000 $ 479,000 $ 427,000