Proposed Merger	12 Months Ended
Dec. 31, 2018
Business Combinations [Abstract]
Proposed Merger	Proposed Merger On October 1, 2018, the Company announced that it had entered into an Agreement and Plan of Reorganization, dated October 1, 2018 (the "Merger Agreement"), with HomeTown Bankshares Corporation ("HomeTown"), pursuant to which the Company will acquire HomeTown in a business combination transaction valued at approximately $95.6 million at the time of the announcement. The proposed combination will deepen the Company’s footprint in the Roanoke, Virginia metropolitan area and create a presence in the New River Valley with an office in Christiansburg, Virginia. Upon completion of the merger and with two office consolidations, the Company will have eight offices in the combined Roanoke/New River Valley market area. The Company expects that it will have approximately $2.4 billion in assets upon completion of the merger, based on each company’s reported financial results as of December 31, 2018. Pursuant and subject to the terms of the Merger Agreement, as a result of the merger, the holders of shares of HomeTown common stock will receive 0.4150 shares of the Company’s common stock for each share of HomeTown common stock held immediately prior to the effective date of the merger. Subject to customary closing conditions, including regulatory and shareholder approvals, the Company expects the merger to close early in the second quarter of 2019. Following completion of the merger, HomeTown's subsidiary bank, HomeTown Bank, will be merged with and into the Bank.

Proposed Merger

On October 1, 2018, the Company announced that it had entered into an Agreement and Plan of Reorganization, dated October 1, 2018 (the "Merger Agreement"), with HomeTown Bankshares Corporation ("HomeTown"), pursuant to which the Company will acquire HomeTown in a business combination transaction valued at approximately $95.6 million at the time of the announcement. The proposed combination will deepen the Company’s footprint in the Roanoke, Virginia metropolitan area and create a presence in the New River Valley with an office in Christiansburg, Virginia. Upon completion of the merger and with two office consolidations, the Company will have eight offices in the combined Roanoke/New River Valley market area. The Company expects that it will have approximately $2.4 billion in assets upon completion of the merger, based on each company’s reported financial results as of December 31, 2018.

Pursuant and subject to the terms of the Merger Agreement, as a result of the merger, the holders of shares of HomeTown common stock will receive 0.4150 shares of the Company’s common stock for each share of HomeTown common stock held immediately prior to the effective date of the merger.

Subject to customary closing conditions, including regulatory and shareholder approvals, the Company expects the merger to close early in the second quarter of 2019. Following completion of the merger, HomeTown's subsidiary bank, HomeTown Bank, will be merged with and into the Bank.