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Operating expenses, Stock Compensation Expenses (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2024
USD ($)
shares
$ / shares
Dec. 31, 2023
USD ($)
shares
$ / shares
Dec. 31, 2022
USD ($)
shares
$ / shares
Operating expense [Abstract]      
Expense recognized from stock compensation | $ $ 4,240 $ 3,313 $ 4,211
Stock compensation expense [Abstract]      
Contractual life for outstanding stock compensation series 1 year 1 month 2 days    
Vesting Price One [Member]      
Stock compensation expense [Abstract]      
Fair value of shares vested (in dollars per share) | $ / shares $ 8.25 $ 8.25 $ 8.22
Number of shares vested (in shares) | shares 212,042 24,163 122,057
Vesting Price Two [Member]      
Stock compensation expense [Abstract]      
Fair value of shares vested (in dollars per share) | $ / shares $ 5.52 $ 8.22 $ 5.52
Number of shares vested (in shares) | shares 129,205 123,444 388,412
Vesting Price Three [Member]      
Stock compensation expense [Abstract]      
Fair value of shares vested (in dollars per share) | $ / shares $ 5.3 $ 5.52 $ 5.3
Number of shares vested (in shares) | shares 123,698 107,733 175,048
Vesting Price Four [Member]      
Stock compensation expense [Abstract]      
Fair value of shares vested (in dollars per share) | $ / shares   $ 5.38 $ 4.25
Number of shares vested (in shares) | shares   198,745 167,431
Vesting Price Five [Member]      
Stock compensation expense [Abstract]      
Fair value of shares vested (in dollars per share) | $ / shares   $ 5.3  
Number of shares vested (in shares) | shares   102,045