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Note 6 - Share-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
6 Months Ended
May 10, 2024
May 01, 2024
Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)     5 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 4.27
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 3.1
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     1 year 9 months 18 days
Share-Based Payment Arrangement, Option [Member]      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 1.1
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     1 year 2 months 12 days
Stock Appreciation Rights (SARs) [Member]      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 0.3
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     1 year 3 months 18 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 3.8
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)     79,128
Restricted Stock [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     3 years
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 4.2
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     1 year 9 months 18 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 14.84
Performance Shares [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 14.73
Performance Shares [Member] | Share-Based Payment Arrangement, Tranche One [Member]      
Share based Compensation Arrangement By Share based Payment Award Award Vesting Rights Requirement Percentage Of Closing Share Price 115.00%    
Performance Shares [Member] | Share-Based Payment Arrangement, Tranche Two [Member]      
Share based Compensation Arrangement By Share based Payment Award Award Vesting Rights Requirement Percentage Of Closing Share Price 130.00%    
Performance Shares [Member] | Share-Based Payment Arrangement, Tranche Three [Member]      
Share based Compensation Arrangement By Share based Payment Award Award Vesting Rights Requirement Percentage Of Closing Share Price 150.00%    
Outside Directors [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)     10 years
Michael Benstock [Member] | Performance Shares [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)   125,000  
Michael Koempel [Member] | Performance Shares [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)   75,000  
Minimum [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     1 year
Minimum [Member] | Performance Shares [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     3 years
Maximum [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     3 years
Maximum [Member] | Restricted Stock [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     5 years
Maximum [Member] | Performance Shares [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     5 years