Minimum Regulatory Capital Requirements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Conservation buffer		1.875%		0.625%
Forecast
Conservation buffer	2.50%
FVC bank
Total Risk Based Capital - to Risk Weighted Assets Amount		$ 172,975	$ 127,020
Total Risk Based Capital - to Risk Weighted Assets Ratio		14.02%	12.83%
Tier 1 Capital - to Risk Weighted Assets Amount		$ 163,804	$ 119,295
Tier 1 Capital - to Risk Weighted Assets Ratio		13.27%	12.05%
Common Tier 1 (CET1) - to Risk Weighted Assets Amount		$ 163,804	$ 119,295
Common Tier 1 (CET1) - to Risk Weighted Assets Ratio		13.27%	12.05%
Tier 1 Capital - to Average Assets Amount		$ 163,804	$ 119,295
Tier 1 Capital - to Average Assets Ratio		12.41%	11.79%
Total Risk Based Capital - to Risk Weighted Assets Minimum Capital Requirement Amount		$ 121,861	$ 91,594
Total Risk Based Capital - to Risk Weighted Assets Minimum Capital Requirement Ratio		9.875%	9.25%
Tier 1 Capital - to Risk Weighted Assets Minimum Capital Requirement Amount		$ 97,180	$ 71,790
Tier 1 Capital - to Risk Weighted Assets Minimum Capital Requirement Ratio		7.875%	7.25%
Common Tier 1 (CET1) - to Risk Weighted Assets Minimum Capital Requirement Amount		$ 78,670	$ 56,937
Common Tier 1 (CET1) - to Risk Weighted Assets Minimum Capital Requirement Ratio		6.375%	5.75%
Tier 1 Capital - to Average Assets Minimum Capital Requirement Amount		$ 52,771	$ 40,456
Tier 1 Capital - to Average Assets Minimum Capital Requirement Ratio		4.00%	4.00%
Total Risk Based Capital - to Risk Weighted Assets Well Capitalized Under Prompt Corrective Action Provisions Amount		$ 123,404	$ 99,021
Total Risk Based Capital - to Risk Weighted Assets Well Capitalized Under Prompt Corrective Action Provisions Ratio		10.00%	10.00%
Tier 1 Capital - to Risk Weighted Assets Well Capitalized Under Prompt Corrective Action Provisions Amount		$ 98,723	$ 79,217
Tier 1 Capital - to Risk Weighted Assets Well Capitalized Under Prompt Corrective Action Provisions Ratio		8.00%	8.00%
Common Tier 1 (CET1) - to Risk Weighted Assets Well Capitalized Under Prompt Corrective Action Provisions Amount		$ 80,213	$ 64,364
Common Tier 1 (CET1) - to Risk Weighted Assets Well Capitalized Under Prompt Corrective Action Provisions Ratio		6.50%	6.50%
Tier 1 Capital - to Average Assets Well Capitalized Under Prompt Corrective Action Provisions Amount		$ 65,971	$ 50,571
Tier 1 Capital - to Average Assets Well Capitalized Under Prompt Corrective Action Provisions Ratio		5.00%	5.00%
Retained earnings available to pay dividends		$ 30,900