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Stock Incentive Plans (Changes in the Stock Options Outstanding) (Details) - Employee Stock Option [Member] - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2024
Number of Options          
Outstanding, at the beginning   174,201     174,201
Issued 32,900 8,400 3,600 0 41,300
Forfeited         (1,500)
Outstanding, at the end 214,001       214,001
Options Exercisable 129,220       129,220
Weighted Average Exercise Price          
Outstanding, at the beginning   $ 33.94     $ 33.94
Issued         28.98
Forfeited         35.35
Outstanding, at the end $ 32.97       32.97
Exercisable $ 35.48       $ 35.48
Aggregate Intrinsic Value          
Outstanding, Aggregate Intrinsic Value $ 709       $ 709
Exercisable $ 350       $ 350