Annual report pursuant to Section 13 and 15(d)

Note 9 - Stock-based Compensation (Details Textual)

v3.21.1
Note 9 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 12 Months Ended
Jan. 18, 2021
Jan. 18, 2019
Aug. 31, 2020
Aug. 31, 2019
Mar. 28, 2021
Mar. 29, 2020
Common Stock, Capital Shares Reserved for Future Issuance (in shares)         183,000  
Share-based Payment Arrangement, Expense         $ 394,000 $ 297,000
Share-based Payment Arrangement, Amount Capitalized         0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value         668,000 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value         139,000 0
Proceeds from Stock Options Exercised         0 0
Payment, Tax Withholding, Share-based Payment Arrangement         $ 162,000 3,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Month)         336 days  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total         $ 330,000  
Share-based Payment Arrangement, Option [Member]            
Share-based Payment Arrangement, Expense         $ 63,000 $ 42,000
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         $ 132,000  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Month)         270 days  
Share-based Payment Arrangement, Option [Member] | Fiscal Year 2018 [Member]            
Share-based Payment Arrangement, Expense           $ 6,000
Non-vested Stock Grants [Member] | Non Employee Directors [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)         2 years  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)     37,256 28,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested $ 182,000 $ 182,000 $ 179,000 $ 135,000    
Performance Shares [Member]            
Share-based Payment Arrangement, Expense         $ 0 $ 0
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)         2 years  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Month)         3 years  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)         0 0
Performance Shares [Member] | Fiscal Year 2018 [Member]            
Payment, Tax Withholding, Share-based Payment Arrangement           $ 17,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)           21,125
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value           $ 109,000
The 2014 Omnibus Equity Compensation Plan [Member] | Share-based Payment Arrangement, Option [Member] | Maximum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)         10 years