Minimum Regulatory Capital Requirements - Summary of Capital Requirements Administered by Banking Agencies Capital Ratios (Detail) - Blue Ridge Bank, N.A [Member] $ in Thousands	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total risk based capital, Actual Amount	$ 298,815	$ 303,876
Total risk based capital, Actual Ratio	0.1077	0.1122
Total risk based capital, For Capital Adequacy Purposes Amount	$ 291,324	$ 284,376
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	$ 277,451	$ 270,834
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	$ 257,195	$ 279,125
Tier 1 capital to risk-weighted assets, Actual Ratio	0.0927	0.1031
Tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Amount	$ 235,831	$ 230,122
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	$ 221,959	$ 216,586
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	$ 257,195	$ 279,125
Common equity tier 1 capital, Actual Ratio	9.27%	10.31%
Common equity tier 1 capital, For Capital Adequacy Purposes Amount	$ 194,214	$ 189,513
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	$ 180,342	$ 175,976
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	$ 257,195	$ 279,125
Tier 1 leverage, Actual Ratio	0.0786	0.0925
Tier 1 leverage, For Capital Adequacy Purposes Amount	$ 130,888	$ 120,703
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	$ 163,610	$ 150,878
Tier 1 leverage, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	0.0500	0.0500