Annual report pursuant to Section 13 and 15(d)

Note 8 - Stock-based Compensation - Stock Option Compensation (Details)

v3.8.0.1
Note 8 - Stock-based Compensation - Stock Option Compensation (Details) - USD ($)
12 Months Ended
Apr. 01, 2018
Apr. 02, 2017
Apr. 03, 2016
Allocated Share Based Compensation Expense $ 539,000 $ 604,000 $ 906,000
Employee Stock Option [Member]      
Allocated Share Based Compensation Expense 84,000 110,000 144,000
Employee Stock Option [Member] | Cost of Sales [Member]      
Allocated Share Based Compensation Expense 49,000 62,000 78,000
Employee Stock Option [Member] | Selling, General and Administrative Expenses [Member]      
Allocated Share Based Compensation Expense 35,000 48,000 66,000
Employee Stock Option [Member] | Fiscal Year 2016 [Member]      
Allocated Share Based Compensation Expense 7,000 42,000 31,000
Employee Stock Option [Member] | Fiscal Year 2016 [Member] | Cost of Sales [Member]      
Allocated Share Based Compensation Expense 6,000 23,000 17,000
Employee Stock Option [Member] | Fiscal Year 2016 [Member] | Selling, General and Administrative Expenses [Member]      
Allocated Share Based Compensation Expense 1,000 19,000 14,000
Employee Stock Option [Member] | Fiscal Year 2015 [Member]      
Allocated Share Based Compensation Expense   26,000 99,000
Employee Stock Option [Member] | Fiscal Year 2015 [Member] | Cost of Sales [Member]      
Allocated Share Based Compensation Expense   14,000 54,000
Employee Stock Option [Member] | Fiscal Year 2015 [Member] | Selling, General and Administrative Expenses [Member]      
Allocated Share Based Compensation Expense   12,000 45,000
Employee Stock Option [Member] | Fiscal Year 2014 [Member]      
Allocated Share Based Compensation Expense     14,000
Employee Stock Option [Member] | Fiscal Year 2014 [Member] | Cost of Sales [Member]      
Allocated Share Based Compensation Expense     7,000
Employee Stock Option [Member] | Fiscal Year 2014 [Member] | Selling, General and Administrative Expenses [Member]      
Allocated Share Based Compensation Expense     $ 7,000
Employee Stock Option [Member] | Fiscal Year 2017 [Member]      
Allocated Share Based Compensation Expense 41,000 42,000  
Employee Stock Option [Member] | Fiscal Year 2017 [Member] | Cost of Sales [Member]      
Allocated Share Based Compensation Expense 26,000 25,000  
Employee Stock Option [Member] | Fiscal Year 2017 [Member] | Selling, General and Administrative Expenses [Member]      
Allocated Share Based Compensation Expense 15,000 $ 17,000  
Employee Stock Option [Member] | Fiscal Year 2018 [Member]      
Allocated Share Based Compensation Expense 36,000    
Employee Stock Option [Member] | Fiscal Year 2018 [Member] | Cost of Sales [Member]      
Allocated Share Based Compensation Expense 17,000    
Employee Stock Option [Member] | Fiscal Year 2018 [Member] | Selling, General and Administrative Expenses [Member]      
Allocated Share Based Compensation Expense $ 19,000