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Document and Entity Information (USD $)
 12 Months Ended
Dec. 31, 2013
Jun. 30, 2013
Mar. 01, 2014
Class A
Mar. 01, 2014
Class B
Entity Registrant Name NEW ENGLAND REALTY ASSOCIATES LIMITED PARTNERSHIP      
Entity Central Index Key 0000746514      
Document Type 10-K      
Document Period End Date Dec. 31, 2013      
Amendment Flag false      
Current Fiscal Year End Date --12-31      
Entity Well-known Seasoned Issuer No      
Entity Voluntary Filers No      
Entity Current Reporting Status Yes      
Entity Filer Category Smaller Reporting Company      
Entity Public Float   $ 83,054,794    
Entity Common Stock, Shares Outstanding     103,396 24,557
Document Fiscal Year Focus 2013      
Document Fiscal Period Focus FY