Minimum Regulatory Capital Requirements - Summary of Capital Requirements Administered by Banking Agencies Capital Ratios (Detail) - Blue Ridge Bank, N.A [Member] $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total risk based capital, Actual Amount	$ 303,876	$ 273,978
Total risk based capital, Actual Ratio	0.1115	0.1311
Total risk based capital, For Capital Adequacy Purposes Amount	$ 286,161	$ 219,393
Total risk based capital, For Capital Adequacy Purposes Ratio	0.1050	0.1050
Total risk based capital, To Be Well Capitalized Under the Prompt Corrective Action Provisions Amount	$ 272,535	$ 208,946
Total risk based capital, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	0.1000	0.1000
Tier 1 capital to risk-weighted assets, Actual Amount	$ 279,125	$ 260,896
Tier 1 capital to risk-weighted assets, Actual Ratio	0.1025	0.1249
Tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Amount	$ 231,470	$ 177,604
Tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Ratio	0.0850	0.0850
Tier 1 capital to risk-weighted assets, To Be Well Capitalized Under the Prompt Corrective Action Provisions Amount	$ 217,854	$ 167,157
Tier 1 capital to risk-weighted assets, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	0.0800	0.0800
Common equity tier 1 capital, Actual Amount	$ 279,125	$ 260,896
Common equity tier 1 capital, Actual Ratio	10.25%	12.49%
Common equity tier 1 capital, For Capital Adequacy Purposes Amount	$ 190,622	$ 146,262
Common equity tier 1 capital, For Capital Adequacy Purposes Ratio	7.00%	7.00%
Common equity tier 1 capital, To Be Well Capitalized Under the Prompt Corrective Action Provisions Amount	$ 177,006	$ 135,815
Common equity tier 1 capital, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	6.50%	6.50%
Tier 1 leverage, Actual Amount	$ 279,125	$ 260,896
Tier 1 leverage, Actual Ratio	0.0925	0.1005
Tier 1 leverage, For Capital Adequacy Purposes Amount	$ 120,703	$ 103,883
Tier 1 leverage, For Capital Adequacy Purposes Ratio	0.0400	0.0400
Tier 1 leverage, To Be Well Capitalized Under the Prompt Corrective Action Provisions Amount	$ 150,878	$ 129,853
Tier 1 leverage, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	0.0500	0.0500