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Restrictions on Cash	12 Months Ended
Restrictions on Cash	Dec. 31, 2018
Cash and Cash Equivalents [Abstract]
Restrictions on Cash	Restrictions on Cash The Company is a member of the Federal Reserve System and is required to maintain certain levels of its cash and cash equivalents as reserves based on regulatory requirements. The gross reserve requirement with the Federal Reserve Bank of Richmond was $3.0 million and $2.8 million at December 31, 2018 and 2017, respectively. Due to vault cash that exceeded the gross reserve requirement, the required balance to be maintained with the Federal Reserve Bank of Richmond was zero at both year ends. The Company maintains cash accounts in other commercial banks. The amount on deposit with correspondent institutions at December 31, 2018 exceeded the insurance limits of the Federal Deposit Insurance Corporation by $197,000.