Annual report pursuant to Section 13 and 15(d)

Note 8 - Stock-based Compensation (Details Textual)

v3.20.1
Note 8 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 12 Months Ended
Jan. 18, 2019
Aug. 31, 2019
Aug. 31, 2018
Mar. 29, 2020
Mar. 31, 2019
Common Stock, Capital Shares Reserved for Future Issuance (in shares)       440,000  
Share-based Payment Arrangement, Expense       $ 297,000 $ 377,000
Share-based Payment Arrangement, Amount Capitalized       0  
Payment, Tax Withholding, Share-based Payment Arrangement       $ 3,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)       10,000 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value         $ 2,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Month)       279 days  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total       $ 246,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value         2,000
Share-based Payment Arrangement, Option [Member]          
Share-based Payment Arrangement, Expense       $ 42,000 $ 73,000
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       $ 37,000  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Month)       207 days  
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)   28,000 28,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested   $ 135,000 $ 151,000    
Restricted Stock [Member] | Subsidiary CEO And President [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 25,000        
Share Base Compensation Arrangement by Share Based Payment Award Equity Instrument Other Than Options Grants in Period Total Grant Date Fair Value (in dollars per share) $ 5.86        
Performance Shares [Member]          
Share-based Payment Arrangement, Expense         $ 116,000
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
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