Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Stock-based Compensation - Stock Option Compensation (Details)

v3.6.0.2
Note 5 - Stock-based Compensation - Stock Option Compensation (Details) - USD ($)
 3 Months Ended 9 Months Ended
Jan. 01, 2017
Dec. 27, 2015
Jan. 01, 2017
Dec. 27, 2015
Allocated Share Based Compensation Expense $ 149,000 $ 212,000 $ 456,000 $ 691,000
Employee Stock Option [Member]        
Allocated Share Based Compensation Expense 23,000 31,000 88,000 108,000
Employee Stock Option [Member] | Cost of Sales [Member]        
Allocated Share Based Compensation Expense 13,000 17,000 49,000 58,000
Employee Stock Option [Member] | Selling, General and Administrative Expenses [Member]        
Allocated Share Based Compensation Expense 10,000 14,000 39,000 50,000
Fiscal Year 2015 [Member] | Employee Stock Option [Member]        
Allocated Share Based Compensation Expense 22,000 26,000 74,000
Fiscal Year 2015 [Member] | Employee Stock Option [Member] | Cost of Sales [Member]        
Allocated Share Based Compensation Expense 12,000 14,000 40,000
Fiscal Year 2015 [Member] | Employee Stock Option [Member] | Selling, General and Administrative Expenses [Member]        
Allocated Share Based Compensation Expense 10,000 12,000 34,000
Fiscal Year 2014 [Member] | Employee Stock Option [Member]        
Allocated Share Based Compensation Expense     14,000
Fiscal Year 2014 [Member] | Employee Stock Option [Member] | Cost of Sales [Member]        
Allocated Share Based Compensation Expense     7,000
Fiscal Year 2014 [Member] | Employee Stock Option [Member] | Selling, General and Administrative Expenses [Member]        
Allocated Share Based Compensation Expense     7,000
Fiscal Year 2016 [Member] | Employee Stock Option [Member]        
Allocated Share Based Compensation Expense 10,000 9,000 32,000 20,000
Fiscal Year 2016 [Member] | Employee Stock Option [Member] | Cost of Sales [Member]        
Allocated Share Based Compensation Expense 5,000 5,000 17,000 11,000
Fiscal Year 2016 [Member] | Employee Stock Option [Member] | Selling, General and Administrative Expenses [Member]        
Allocated Share Based Compensation Expense 5,000 4,000 15,000 9,000
Fiscal Year 2017 [Member] | Employee Stock Option [Member]        
Allocated Share Based Compensation Expense 13,000 30,000
Fiscal Year 2017 [Member] | Employee Stock Option [Member] | Cost of Sales [Member]        
Allocated Share Based Compensation Expense 8,000 18,000
Fiscal Year 2017 [Member] | Employee Stock Option [Member] | Selling, General and Administrative Expenses [Member]        
Allocated Share Based Compensation Expense $ 5,000 $ 12,000