Subsequent Events	12 Months Ended
Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	23. SUBSEQUENT EVENT On February 20, 2020, the Company announced that effective February 19, 2020, Mr. Joe A. Shearin would be retiring as Chief Executive Officer of the Company and the Company’s wholly-owned subsidiary, Sonabank, and resigning as a director of the Company and Sonabank. On February 19, 2020, the Company’s Board of Directors appointed Dennis J. Zember Jr. as the new President and Chief Executive Officer of the Company and Sonabank, and as a member of the Board of Directors of the Company and Sonabank, effective February 19, 2020.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration