XML 15 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2017
Feb. 28, 2018
Jun. 30, 2017
Entity Registrant Name UMH PROPERTIES, INC.    
Entity Central Index Key 0000752642    
Document Type 10-K    
Document Period End Date Dec. 31, 2017    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity a Well-known Seasoned Issuer No    
Entity a Voluntary Filer No    
Entity's Reporting Status Current Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float   $ 0  
Entity Common Stock, Shares Outstanding   36,070,968  
Trading symbol UMH    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2017    
Non Affiliates [Member]      
Entity Public Float     $ 570,225,929
Affiliates [Member]      
Entity Public Float     $ 522,718,594