XML 12 R1.htm IDEA: XBRL DOCUMENT v3.3.1.900
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2015
Feb. 26, 2016
Jun. 30, 2015
Document and Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2015    
Entity Registrant Name FIRST UNITED CORP/MD/    
Entity Central Index Key 0000763907    
Current Fiscal Year End Date --12-31    
Entity Filer Category Smaller Reporting Company    
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Trading Symbol func    
Entity Common Stock, Shares Outstanding   6,254,620  
Entity Public Float     $ 49,657,427