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Note 7 - Equity (Details Textual) - USD ($)
$ / shares in Units, shares in Thousands
1 Months Ended 3 Months Ended 5 Months Ended 9 Months Ended
Mar. 17, 2023
Aug. 31, 2024
Feb. 28, 2021
Sep. 30, 2024
Sep. 30, 2023
Jun. 03, 2024
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Common Stock, Shares Authorized (in shares)       60,000     60,000   60,000
Common Stock, Par or Stated Value Per Share       $ 0.01     $ 0.01   $ 0.01
Common Stock, Shares, Issued       4,598     4,598   4,598
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period     160            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value     $ 468,000            
Share Price       $ 32.74     $ 32.74    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value   $ 146,000   $ 12,554,000     $ 12,554,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross   10         10    
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price   $ 33.2         $ 33.2    
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount       542,000     $ 542,000    
Share Repurchase Program [Member]                  
Share Repurchase Program, Authorized, Amount $ 5,000     5,000     5,000    
Stock Repurchase Program Expiration Period 24 months                
Treasury Stock, Shares, Acquired (in shares)           0   0  
Restricted Stock Units (RSUs) [Member]                  
Share-Based Payment Arrangement, Expense         $ 0     $ 31,000  
Share-Based Payment Arrangement, Option [Member]                  
Share-Based Payment Arrangement, Expense       $ 141,000 $ 21,000   $ 344,000 $ 63,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period   5 years              
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate   45.00%              
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate   0.00%              
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate   3.38%