Proposed Business Combination - Additional Information (Detail) - Virginia BanCorp	Nov. 02, 2016
Business Acquisition [Line Items]
Minority interest ownership percentage by parent	51.00%
Minority interest ownership percentage by non-controlling owners	49.00%
Common stock exchange ratio	1.178

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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