Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Share-based Compensation (Details Textual)

v3.22.1
Note 15 - Share-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Mar. 31, 2022
Mar. 31, 2021
Share-based Payment Arrangement, Expense     $ 800 $ 1,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total     $ 2,400  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     2 years 4 months 24 days  
Share-based Payment Arrangement, Amount Capitalized     $ 0 $ 0
Share-Based Payment Arrangement, Option [Member]        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total     $ 100  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     1 year 10 months 24 days  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 23.77  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)     111,706  
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)     $ 8.25  
Restricted Stock Units (RSUs) [Member]        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total     $ 1,000  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     3 years  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   2 years 4 years  
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)     $ 20.71 $ 9.58
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     51,100 38,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)     29,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)     77,350  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)     $ 16.12  
Performance Shares [Member]        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total     $ 1,400  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     2 years  
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)     $ 17.15 $ 8.76
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     90,367 117,338
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)     35,124  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)     369,750  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)     $ 16.90  
Share-based Compensation Arrangement by Share-based Payment Award, Target Performance Period (Year)     3 years  
Share-Based Payment Arrangement, Employee [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)     0 0
Share-Based Payment Arrangement, Nonemployee [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) 25,410 37,008    
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share) $ 23.61 $ 12.97    
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    
Stock Option Plan 1992 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)     1,411,012