Regulatory Requirements - Schedule of Bank's Actual Capital Amounts and Ratios, and Minimum Capital Requirement Amounts and Ratios Per Regulatory Capital Framework (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jan. 01, 2015
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Risk Based Capital, Minimum Capital Requirement Ratio		10.50%		8.00%
Tier 1 Capital, Minimum Capital Requirement Ratio		8.50%		6.00%
Tier 1 Leverage Ratio, Minimum Capital Requirement Ratio		4.00%		4.00%
Common Stock
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 Capital, Minimum Capital Requirement Ratio		7.00%		4.50%
Consolidated Entities
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Risk Based Capital, Actual Amount	$ 153,766		$ 122,177
Total Risk Based Capital, Actual Ratio	16.23%		13.41%
Total Risk Based Capital, Minimum Capital Requirement Amount	$ 99,494		$ 89,979
Total Risk Based Capital, Minimum Capital Requirement Ratio	10.50%		9.875%
Tier 1 Capital, Actual Amount	$ 115,118		$ 107,286
Tier 1 Capital, Actual Ratio	12.15%		11.77%
Tier 1 Capital, Minimum Capital Requirement Amount	$ 80,543		$ 71,756
Tier 1 Capital, Minimum Capital Requirement Ratio	8.50%		7.875%
Tier 1 Leverage Ratio, Actual Amount	$ 115,118		$ 107,286
Tier 1 Leverage Ratio, Actual Ratio	10.33%		10.28%
Tier 1 Leverage Ratio, Minimum Capital Requirement Amount	$ 44,597		$ 41,735
Tier 1 Leverage Ratio, Minimum Capital Requirement Ratio	4.00%		4.00%
Consolidated Entities | Common Stock
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Risk Based Capital, Actual Amount	$ 115,118		$ 107,286
Total Risk Based Capital, Actual Ratio	12.15%		11.77%
Total Risk Based Capital, Minimum Capital Requirement Amount	$ 66,329		$ 58,088
Total Risk Based Capital, Minimum Capital Requirement Ratio	7.00%		6.375%
Virginia Commonwealth Bank
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Risk Based Capital, Actual Amount	$ 123,346		$ 106,077
Total Risk Based Capital, Actual Ratio	13.07%		11.68%
Total Risk Based Capital, Minimum Capital Requirement Amount	$ 99,068		$ 89,691
Total Risk Based Capital, Minimum Capital Requirement Ratio	10.50%		9.875%
Total Risk Based Capital, Minimum To Be Well Capitalized Amount	$ 94,350		$ 90,826
Total Risk Based Capital, Minimum To Be Well Capitalized Ratio	10.00%		10.00%
Tier 1 Capital, Actual Amount	$ 115,699		$ 98,078
Tier 1 Capital, Actual Ratio	12.26%		10.80%
Tier 1 Capital, Minimum Capital Requirement Amount	$ 80,198		$ 71,526
Tier 1 Capital, Minimum Capital Requirement Ratio	8.50%		7.875%
Tier 1 Capital, Minimum To Be Well Capitalized Amount	$ 75,480		$ 72,661
Tier 1 Capital, Minimum To Be Well Capitalized Ratio	8.00%		8.00%
Tier 1 Leverage Ratio, Actual Amount	$ 115,699		$ 98,078
Tier 1 Leverage Ratio, Actual Ratio	10.42%		9.42%
Tier 1 Leverage Ratio, Minimum Capital Requirement Amount	$ 44,430		$ 41,631
Tier 1 Leverage Ratio, Minimum Capital Requirement Ratio	4.00%		4.00%
Tier 1 Leverage Ratio, Minimum To Be Well Capitalized Amount	$ 55,537		$ 52,039
Tier 1 Leverage Ratio, Minimum To Be Well Capitalized Ratio	5.00%		5.00%
Virginia Commonwealth Bank | Common Stock
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Risk Based Capital, Actual Amount	$ 115,699		$ 98,078
Total Risk Based Capital, Actual Ratio	12.26%		10.80%
Total Risk Based Capital, Minimum Capital Requirement Amount	$ 66,045		$ 57,902
Total Risk Based Capital, Minimum Capital Requirement Ratio	7.00%		6.375%
Total Risk Based Capital, Minimum To Be Well Capitalized Amount	$ 61,328		$ 59,037
Total Risk Based Capital, Minimum To Be Well Capitalized Ratio	6.50%		6.50%