Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Stock-based Compensation (Details Textual)

v3.19.3
Note 7 - Stock-based Compensation (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Aug. 14, 2019
Aug. 08, 2019
Jan. 18, 2019
Sep. 29, 2019
Jun. 30, 2019
Sep. 30, 2018
Sep. 29, 2019
Sep. 29, 2019
Sep. 30, 2018
Mar. 31, 2019
Common Stock, Capital Shares Reserved for Future Issuance       440,000     440,000 440,000    
Share-based Payment Arrangement, Expense       $ 75,000   $ 87,000   $ 140,000 $ 197,000  
Share-based Payment Arrangement, Amount Capitalized               0    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value       155,000     $ 155,000 155,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value       $ 15,000     $ 15,000 $ 15,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period       0   0 0 0    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition               1 year 97 days    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total       $ 381,000     $ 381,000 $ 381,000    
Share-based Payment Arrangement, Option [Member]                    
Share-based Payment Arrangement, Expense       11,000   $ 14,000   $ 20,000 $ 41,000  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period               2 years    
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount       $ 59,000     $ 59,000 $ 59,000    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition       1 year 18 days            
Non-vested Stock Grants [Member] | Non Employee Directors [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         2 years          
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, 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     25,000              
Share Base Compensation Arrangement by Share Based Payment Award Equity Instrument Other Than Options Grants in Period Total Grant Date Fair Value     $ 5.86              
Performance Shares [Member]                    
Share-based Payment Arrangement, Expense                   $ 116,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period               2 years    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition               3 years    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period               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               10 years