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Fair Value Measurements Balance Sheet Location of Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Other Assets [Member]    
Financial Insturments, Fair Value [Line Items]    
Financial Instrument, Fair Value $ 654 $ 989
Other Liabilities [Member]    
Financial Insturments, Fair Value [Line Items]    
Fair Value Disclosure, Recurring 352 3,459
Forward Sales or Mortgage Backed Securities [Member] | Other Assets [Member]    
Financial Insturments, Fair Value [Line Items]    
Financial Instrument, Fair Value 0 0
Forward Sales or Mortgage Backed Securities [Member] | Other Liabilities [Member]    
Financial Insturments, Fair Value [Line Items]    
Fair Value Disclosure, Recurring 336 3,305
Interest Rate Lock Commitments [Member] | Other Assets [Member]    
Financial Insturments, Fair Value [Line Items]    
Financial Instrument, Fair Value 654 989
Interest Rate Lock Commitments [Member] | Other Liabilities [Member]    
Financial Insturments, Fair Value [Line Items]    
Fair Value Disclosure, Recurring 0 0
Best Efforts Contracts [Member] | Other Assets [Member]    
Financial Insturments, Fair Value [Line Items]    
Financial Instrument, Fair Value 0 0
Best Efforts Contracts [Member] | Other Liabilities [Member]    
Financial Insturments, Fair Value [Line Items]    
Fair Value Disclosure, Recurring $ 16 $ 154