Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Share-based Compensation and Employee Benefits Plans (Details Textual)

v3.20.2
Note 11 - Share-based Compensation and Employee Benefits Plans (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 17, 2020
Sep. 20, 2018
Sep. 26, 2020
Sep. 28, 2019
Jun. 29, 2019
Sep. 26, 2020
Sep. 28, 2019
Mar. 28, 2020
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           2 years 135 days    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares (in shares)     15,294 9,645   39,987 23,464  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value     $ 63,000 $ 47,000   $ 168,000 $ 100,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)     0       0  
Share-based Payment Arrangement, Option [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)           0    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total     $ 347,000     $ 347,000    
Share-based Payment Arrangement, Expense     $ 58,000 52,000   $ 127,000 $ 103,000  
Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     0   0 0 0 10,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total     $ 16,000     $ 16,000    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           182 days    
Share-based Payment Arrangement, Expense     $ 8,000 $ 15,000   $ 15,000 $ 59,000  
The 2018 Equity Incentive Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares) 250,000              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) 416,667   268,493     268,493    
The 2018 Equity Incentive Plan [Member] | Share-based Payment Arrangement, Option [Member] | Minimum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   4 years            
The 2018 Equity Incentive Plan [Member] | Share-based Payment Arrangement, Option [Member] | Maximum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   5 years            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)   10 years            
Equity Incentive Plan 2005 [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)     0     0