Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Stock-based Compensation (Details Textual)

v3.10.0.1
Note 6 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Dec. 30, 2018
Dec. 31, 2017
Dec. 30, 2018
Dec. 31, 2017
Allocated Share-based Compensation Expense, Total     $ 84,000 $ 129,000 $ 281,000 $ 406,000
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount         0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value     4,000   4,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value     4,000   $ 4,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period         0 0
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition         240 days  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period         41,726 20,604
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value         $ 246,000 $ 167,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total     194,000   194,000  
Employee Stock Option [Member]            
Allocated Share-based Compensation Expense, Total     16,000 $ 19,000 $ 57,000 $ 62,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         2 years 2 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options     $ 63,000   $ 63,000  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition         279 days  
Employee Stock Option [Member] | Non Employee Directors [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         2 years  
Restricted Stock [Member] | Non Employee Directors [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 28,000 28,000        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value $ 151,000 $ 157,000        
Performance Shares [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         2 years  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition         3 years  
The 2014 Omnibus Equity Compensation Plan [Member]            
Common Stock, Capital Shares Reserved for Future Issuance     581,000   581,000  
The 2014 Omnibus Equity Compensation Plan [Member] | Employee Stock Option [Member] | Maximum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period         10 years