Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Stock-based Compensation and Employee Benefit Plans (Details Textual)

v3.21.2
Note 10 - Stock-based Compensation and Employee Benefit Plans (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 25, 2021
Sep. 26, 2020
Sep. 25, 2021
Sep. 26, 2020
Mar. 27, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)     39,000   148,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares (in shares) 14,391 15,294      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value $ 56,140 $ 63,167      
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 Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 311,496   $ 311,496    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 10 months 2 days        
Share-based Payment Arrangement, Expense     $ 261,678 $ 127,000  
Stock Appreciation Rights (SARs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     0   0
Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     18,000 0  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 26,886   $ 26,886    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     6 months    
Share-based Payment Arrangement, Expense     $ 39,252 $ 15,971  
The 2018 Equity Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) 416,667   416,667    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) 102,327   102,327    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)     39,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Fair Value     $ 185,796    
The 2018 Equity Incentive Plan [Member] | Share-based Payment Arrangement, Option [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, 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