Significant Accounting Policies Loans and Allowance for Credit Losses (Details)	6 Months Ended
Jun. 30, 2017
Loans and Allowance for Credit Losses [Abstract]
Loans, Number of Days Past Due for a Non-Risk Graded Loan to be Placed on Nonaccruing Status	90 days
Loans, Number of Days After Notification of Chapter 7 Bankruptcy Non-Risk Graded Loan is Placed on Nonaccruing Status	60 days
Loans and Allowances for Credit Losses, Minimum No of Days After Which Past Due Non-Risk Graded Loans Are Charged Off	60 days
Loans and Allowances for Credit Losses, Maximum No of Days After Which Past Due Non-Risk Graded Loans Are Charged Off	180 days
Loans, Number of Days After Notification of Chapter 7 Bankruptcy Non-Risk Graded Loan is Charged Off	60 days

Loans and Allowance for Credit Losses [Abstract]

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Represents the number of days after notification of Chapter 7 bankruptcy for a non-risk graded loan to be charged off

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The number of days following notification of a borrowers Chapter 7 bankruptcy that a non-risk graded loan is placed on nonaccruing status.

No definition available.

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Represents the number of days past due a non-risk graded loan has to be in order to be placed on nonaccruing status.

No definition available.

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Maximum number of days after which past due non-risk graded loans are charged off

No definition available.

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Minimum number of days after which past due non-risk graded loans are charged off

No definition available.

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