Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Stock-based Compensation and Other Benefit Plans (Details Textual)

v3.22.2.2
Note 15 - Stock-based Compensation and Other Benefit Plans (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
Oct. 22, 2022
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Jun. 25, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Share-Based Liabilities Paid         $ 0.8 $ 3.1  
Proceeds from Stock Options Exercised         $ 0.3 $ 1.3  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     241,358        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 6.41        
Severance Cost as Percentage of Target Bonus         75.00%    
Maximum [Member]              
Severance Cost as Percentage of Salary         100.00%    
Minimum [Member]              
Severance Cost as Percentage of Salary         50.00%    
Share-Based Payment Arrangement, Option [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)         3 years    
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)     10 years        
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares)         49,063    
Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche One [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     1 year        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage     33.33%        
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights, Minimum Share Price Over 30 Day Period (in dollars per share)     $ 7.37        
Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche Two [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, Award Vesting Rights, Percentage     33.33%        
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights, Minimum Share Price Over 30 Day Period (in dollars per share)     $ 8.48        
Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche Three [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     3 years        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage     33.33%        
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights, Minimum Share Price Over 30 Day Period (in dollars per share)     $ 9.75        
Restricted Stock [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)         3 years    
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares)         69,135    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)         384    
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)         $ 6.56    
Restricted Stock [Member] | Share-Based Payment Arrangement, Employee [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   30,687 353,424        
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)   $ 8.31 $ 6.41        
Stock Appreciation Rights (SARs) [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)         0    
Subsequent Event [Member] | Performance Share Units (PSUs) [Member] | Granted in 2020 [Member] | TransGlobe [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Applicable Vesting Percentage 200.00%            
Subsequent Event [Member] | Performance Share Units (PSUs) [Member] | Granted in 2022 [Member] | TransGlobe [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Applicable Vesting Percentage 64.40%            
Subsequent Event [Member] | Performance Share Units (PSUs) [Member] | Granted in 2021 [Member] | TransGlobe [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Applicable Vesting Percentage 200.00%            
The 2020 Long-Term Incentive Plan [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)             5,500,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares)       3,750,000      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)         6,645,319