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Preferred Stock (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
Apr. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Text Block [Abstract]      
Preferred Stock, Shares Issued 1,500 1,500  
Preferred Stock, Value, Outstanding $ 15,000    
Preferred Stock, Par or Stated Value Per Share $ 1.00 $ 1.00 $ 1.00
Preferred Stock, Liquidation Preference Per Share $ 10,000    
Preferred Stock, Dividend Rate, Percentage 6.00%