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Stockholders' Equity:Stock Repurchase (Details) - ShareRepurchaseProgram - shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Jul. 28, 2022
Equity, Class of Treasury Stock [Line Items]        
Stock Repurchase Program, Number of Shares Authorized to be Repurchased       1,500,000
Treasury stock, shares acquired 0 0 0  
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased 1,996,989