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Consolidated Statements of Changes in Shareholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2020 80,295,141 3,945,867      
Balance at Dec. 31, 2020 $ 40 $ (9,999) $ 411,753 $ (184,909) $ 216,885
Vesting of restricted stock units and issuance of stock under incentive plans (in shares) 2,563,942        
Vesting of restricted stock units and issuance of stock under incentive plans $ 2   1,494   $ 1,496
Increase in treasury stock resulting from shares withheld to cover statutory taxes (in shares)   145,956     145,956
Increase in treasury stock resulting from shares withheld to cover statutory taxes   $ (724)     $ (724)
Exercise of stock options (in shares) 198,000,000 0      
Exercise of stock options $ 0 $ 0 934 0 934
Share-based compensation expense 0 0 4,878 0 4,878
Net income (loss) $ 0 $ 0 0 (10,059) (10,059)
Balance (in shares) at Dec. 31, 2021 83,057,083 4,091,823      
Balance at Dec. 31, 2021 $ 42 $ (10,723) 419,059 (194,968) 213,410
Vesting of restricted stock units and issuance of stock under incentive plans (in shares) 1,328,375 0      
Vesting of restricted stock units and issuance of stock under incentive plans $ 0 $ 0 211 0 $ 211
Increase in treasury stock resulting from shares withheld to cover statutory taxes (in shares) 0 208,329     208,329
Increase in treasury stock resulting from shares withheld to cover statutory taxes $ 0 $ (448) 0 0 $ (448)
Exercise of stock options (in shares)         65,000
Share-based compensation expense 0 0 4,114 0 $ 4,114
Net income (loss) $ 0 $ 0 0 (123,332) (123,332)
Balance (in shares) at Dec. 31, 2022 84,385,458 4,300,152      
Balance at Dec. 31, 2022 $ 42 $ (11,171) $ 423,384 $ (318,300) $ 93,955