Annual report pursuant to Section 13 and 15(d)

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

v3.20.1
Note 8 - Stock-based Compensation - Stock Option Compensation (Details) - USD ($)
12 Months Ended
Mar. 29, 2020
Mar. 31, 2019
Allocated share-based compensation $ 297,000 $ 377,000
Share-based Payment Arrangement, Option [Member]    
Allocated share-based compensation 42,000 73,000
Share-based Payment Arrangement, Option [Member] | Cost of Sales [Member]    
Allocated share-based compensation 22,000 30,000
Share-based Payment Arrangement, Option [Member] | Marketing and Administrative Expenses [Member]    
Allocated share-based compensation 20,000 43,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2018 [Member]    
Allocated share-based compensation 6,000 43,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2018 [Member] | Cost of Sales [Member]    
Allocated share-based compensation 5,000 17,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2018 [Member] | Marketing and Administrative Expenses [Member]    
Allocated share-based compensation 1,000 26,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2017 [Member]    
Allocated share-based compensation   10,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2017 [Member] | Cost of Sales [Member]    
Allocated share-based compensation   6,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2017 [Member] | Marketing and Administrative Expenses [Member]    
Allocated share-based compensation   4,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2019 [Member]    
Allocated share-based compensation 18,000 20,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2019 [Member] | Cost of Sales [Member]    
Allocated share-based compensation 10,000 7,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2019 [Member] | Marketing and Administrative Expenses [Member]    
Allocated share-based compensation 8,000 $ 13,000
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2020 [Member]    
Allocated share-based compensation 18,000  
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2020 [Member] | Cost of Sales [Member]    
Allocated share-based compensation 7,000  
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2020 [Member] | Marketing and Administrative Expenses [Member]    
Allocated share-based compensation $ 11,000