Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Stock-based Compensation - Compensaiton Expense Associated with Non-vested Stock Grants (Details)

v3.5.0.2
Note 5 - Stock-based Compensation - Compensaiton Expense Associated with Non-vested Stock Grants (Details) - USD ($)
3 Months Ended 6 Months Ended
Oct. 02, 2016
Sep. 27, 2015
Oct. 02, 2016
Sep. 27, 2015
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2011 [Member] | Employee [Member]        
Allocated share-based compensation   $ 12,000 $ 48,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2011 [Member] | Non Employee Directors [Member]        
Allocated share-based compensation    
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2011 [Member]        
Allocated share-based compensation   12,000 48,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2014 [Member] | Employee [Member]        
Allocated share-based compensation    
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2014 [Member] | Non Employee Directors [Member]        
Allocated share-based compensation   8,000 31,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2014 [Member]        
Allocated share-based compensation   8,000 31,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2015 [Member] | Employee [Member]        
Allocated share-based compensation   89,000 178,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2015 [Member] | Non Employee Directors [Member]        
Allocated share-based compensation $ 9,000 28,000 37,000 56,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2015 [Member]        
Allocated share-based compensation 9,000 117,000 37,000 234,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2016 [Member] | Employee [Member]        
Allocated share-based compensation 35,000 35,000 70,000 70,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2016 [Member] | Non Employee Directors [Member]        
Allocated share-based compensation 28,000 19,000 57,000 19,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2016 [Member]        
Allocated share-based compensation 63,000 54,000 127,000 89,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2017 [Member] | Employee [Member]        
Allocated share-based compensation 27,000   54,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2017 [Member] | Non Employee Directors [Member]        
Allocated share-based compensation 24,000   24,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Fiscal Year 2017 [Member]        
Allocated share-based compensation 51,000   78,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Employee [Member]        
Allocated share-based compensation 62,000 136,000 124,000 296,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member] | Non Employee Directors [Member]        
Allocated share-based compensation 61,000 55,000 118,000 106,000
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member]        
Allocated share-based compensation 123,000 191,000 242,000 402,000
Allocated share-based compensation $ 146,000 $ 223,000 $ 307,000 $ 479,000