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Stock Incentive Plans (Changes in the Restricted Stock Grants Outstanding) (Details) - Restricted Stock [Member]
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
$ / shares
shares
Number of Shares/Options  
Non-vested Outstanding, at the beginning | shares 25,268
Issued | shares 21,749
Vested | shares (10,006)
Non-vested Outstanding, at the end | shares 37,011
Weighted Average Grant Date Fair Value Per Share/Exercise Price  
Non-vested Outstanding, at the beginning | $ / shares $ 26.60
Issued | $ / shares 30.84
Vested | $ / shares 27.01
Non-vested Outstanding, at the end | $ / shares $ 28.98
Aggregate Intrinsic Value  
Non-vested Outstanding, at the beginning | $ $ 957
Issued | $ 824
Vested | $ (379)
Non-vested Outstanding, Aggregate Intrinsic Value | $ $ 1,402