Loans and Allowance for Loan Losses Schedule of Troubled Debt Restructured Loan Modifications (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) loans	Dec. 31, 2017 USD ($) loans	Dec. 31, 2016 USD ($) loans
Loans and Allowance for Loan Losses [Abstract]
Troubled debt restructured loan modifications, pre-modification recorded investment	$ 560	$ 0	$ 0
Troubled debt restructured loan modifications, post-modification recorded investment	$ 560	$ 0	$ 0
Troubled debt restructured loan modifications, number \| loans	1	0	0

Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

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Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

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- Definition

Note 7. Impaired Loans and Allowance for Loan Losses [Abstract]

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