Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Stock-based Compensation - Stock Option Compensation (Details)

v3.24.0.1
Note 12 - Stock-based Compensation - Stock Option Compensation (Details) - USD ($)
 3 Months Ended 9 Months Ended
Dec. 31, 2023
Jan. 01, 2023
Dec. 31, 2023
Jan. 01, 2023
Allocated Share Based Compensation Expense $ 190,000 $ 253,000 $ 573,000 $ 844,000
Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 19,000 53,000 86,000 166,000
Fiscal Year 2021 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 0 11,000 0 40,000
Fiscal Year 2022 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 0 29,000 31,000 97,000
Fiscal Year 2023 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 12,000 13,000 41,000 29,000
Fiscal Year 2024 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 7,000 0 14,000 0
Cost of Sales [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 8,000 15,000 33,000 46,000
Cost of Sales [Member] | Fiscal Year 2021 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 0 0 0 3,000
Cost of Sales [Member] | Fiscal Year 2022 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 0 9,000 10,000 31,000
Cost of Sales [Member] | Fiscal Year 2023 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 5,000 6,000 17,000 12,000
Cost of Sales [Member] | Fiscal Year 2024 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 3,000 0 6,000 0
Marketing and Administrative Expenses [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 11,000 38,000 53,000 120,000
Marketing and Administrative Expenses [Member] | Fiscal Year 2021 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 0 11,000 0 37,000
Marketing and Administrative Expenses [Member] | Fiscal Year 2022 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 0 20,000 21,000 66,000
Marketing and Administrative Expenses [Member] | Fiscal Year 2023 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 7,000 7,000 24,000 17,000
Marketing and Administrative Expenses [Member] | Fiscal Year 2024 [Member] | Share-Based Payment Arrangement, Option [Member]        
Allocated Share Based Compensation Expense 4,000 0 8,000 0
Selling, General and Administrative Expenses [Member] | Non-vested Stock Grants [Member]        
Allocated Share Based Compensation Expense 171,000 200,000 487,000 678,000
Selling, General and Administrative Expenses [Member] | Fiscal Year 2021 [Member] | Non-vested Stock Grants [Member]        
Allocated Share Based Compensation Expense 0 9,000 0 76,000
Selling, General and Administrative Expenses [Member] | Fiscal Year 2022 [Member] | Non-vested Stock Grants [Member]        
Allocated Share Based Compensation Expense 37,000 113,000 147,000 472,000
Selling, General and Administrative Expenses [Member] | Fiscal Year 2023 [Member] | Non-vested Stock Grants [Member]        
Allocated Share Based Compensation Expense 23,000 78,000 160,000 130,000
Selling, General and Administrative Expenses [Member] | Fiscal Year 2024 [Member] | Non-vested Stock Grants [Member]        
Allocated Share Based Compensation Expense $ 111,000 $ 0 $ 180,000 $ 0