Annual report pursuant to Section 13 and 15(d)

Note 9 - Stock-based Compensation (Details Textual)

v3.24.1.1.u2
Note 9 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 12 Months Ended
Feb. 21, 2023
Aug. 16, 2022
May 01, 2022
Mar. 01, 2022
Aug. 11, 2021
Aug. 31, 2023
Feb. 28, 2023
Aug. 31, 2022
Jun. 30, 2022
Mar. 31, 2024
Apr. 02, 2023
Common Stock, Capital Shares Reserved for Future Issuance (in shares)                   439,000  
Share-Based Payment Arrangement, Expense                   $ 763,000 $ 1,100,000
Share-Based Payment Arrangement, Amount Capitalized                   0  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value                   33,000 87,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value                   24,000 87,000
Proceeds from Stock Options Exercised                   0 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value                     127,000
Payment, Tax Withholding, Share-Based Payment Arrangement                     10,000
Share-Based Payment Arrangement, Option [Member]                      
Share-Based Payment Arrangement, Expense                   $ 105,000 $ 212,000
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                   $ 63,000  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Month)                   8 months 24 days  
Non-vested Stock Grants [Member]                      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Month)                   10 months 9 days  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount                   $ 689,000  
Non-vested Stock Grants [Member] | Former Chairman, President and Chief Executive Officer [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)         8,033            
Non-vested Stock Grants [Member] | Non Employee Directors [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Accelerated Vesting, Number (in shares)     8,033                
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested     $ 50,000     $ 168,000   $ 331,000      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)           35,172   52,856      
Non-vested Stock Grants [Member] | Director [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   11,724                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Accelerated Vesting, Number (in shares) 11,724                    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested $ 67,000                    
Non-vested Stock Grants [Member] | Employee [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested             $ 57,000   $ 293,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)             10,000   45,000    
Performance Shares [Member]                      
Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Grants In Period Total Grant Date Fair Value       $ 732,000              
Performance Shares [Member] | Executive Officer [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)       187,500              
Performance Shares [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)       75,000              
Share Based Compensation, Grant Conditions, Minimum Per-Share Price (in dollars per share)       $ 8              
Share Based Compensation, Grant Conditions, Trading Period (Day)       10 days              
Performance Shares [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche Two [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)       112,500              
Share Based Compensation, Grant Conditions, Minimum Per-Share Price (in dollars per share)       $ 9              
Share Based Compensation, Grant Conditions, Trading Period (Day)       10 days              
Maximum [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)                   10 years