Annual report [Section 13 and 15(d), not S-K Item 405]

Note 10 - Stock-based Compensation (Details Textual)

v3.25.2
Note 10 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 12 Months Ended
Mar. 26, 2024
Mar. 01, 2022
Mar. 30, 2025
Aug. 31, 2024
Aug. 31, 2023
Mar. 30, 2025
Mar. 31, 2024
Common Stock, Capital Shares Reserved for Future Issuance (in shares)     179,000     179,000  
Share-Based Payment Arrangement, Expense           $ 752,000 $ 763,000
Share-Based Payment Arrangement, Amount Capitalized           0  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value     $ 0     0 33,000
Proceeds from Stock Options Exercised           0 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value     0     0 24,000
Share-Based Payment Arrangement, Option [Member]              
Share-Based Payment Arrangement, Expense           $ 39,000 $ 105,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)           2 years 2 years
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount     19,000     $ 19,000  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           6 years 4 months 24 days  
Non-vested Stock Grants [Member]              
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           16 years 3 months 18 days  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 1,100,000     $ 1,100,000  
Non-vested Stock Grants [Member] | Non Employee Directors [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)       60,412 35,172    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested       $ 292,000 $ 168,000    
Non-vested Stock Grants [Member] | Employee [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)     40,000 26,000      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested     $ 154,000 $ 125,000      
Performance Shares [Member]              
Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Grants In Period Total Grant Date Fair Value   $ 732,000          
Performance Shares [Member] | Executive Officer [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)   187,500          
Performance Shares [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)   75,000          
Share Based Compensation, Grant Conditions, Minimum Per-Share Price (in dollars per share)   $ 8          
Share Based Compensation, Grant Conditions, Trading Period (Day)   10 days          
Performance Shares [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche Two [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)   112,500          
Share Based Compensation, Grant Conditions, Minimum Per-Share Price (in dollars per share)   $ 9          
Share Based Compensation, Grant Conditions, Trading Period (Day)   10 days          
Restricted Stock [Member] | Craig J. Demarest [Member] | 2021 Award plan [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Accelerated Vesting, Number (in shares) 25,000            
Maximum [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)           10 years