Document and Entity Information
3 Months Ended
Mar. 31, 2013
Apr. 30, 2013
Document and Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2013  
Entity Registrant Name FIRST UNITED CORP/MD/  
Entity Central Index Key 0000763907  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   6,199,283
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q1  
Entity Voluntary Filers No  
Entity Well-known Seasoned Issuer Yes  
Entity Current Reporting Status Yes