XML 12 R1.htm IDEA: XBRL DOCUMENT v3.21.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2021
May 07, 2021
Document and Entity Information    
Document Type 10-Q  
Document Period End Date Mar. 31, 2021  
Entity Registrant Name FVCBankcorp, Inc.  
Document Quarterly Report true  
Document Transition Report false  
Entity File Number 001-38647  
Entity Incorporation, State or Country Code VA  
Entity Tax Identification Number 47-5020283  
Entity Address, Address Line One 11325 Random Hills Road  
Entity Address, City or Town Fairfax  
Entity Address, Country VA  
Entity Address, Postal Zip Code 22030  
City Area Code 703  
Local Phone Number 436-3800  
Title of 12(b) Security Common Stock, $0.01 par value  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Shell Company false  
Trading Symbol FVCB  
Entity Common Stock, Shares Outstanding   13,638,934
Entity Central Index Key 0001675644  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q1  
Amendment Flag false