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Document And Entity Information (USD $)
9 Months Ended
Sep. 30, 2011
Nov. 03, 2011
Jun. 30, 2010
Entity Registrant NameArtesian Resources Corporation  
Entity Central Index Key0000863110  
Current Fiscal Year End Date--09-30  
Entity Well-known Seasoned IssuerNo  
Entity Voluntary FilersNo  
Entity Current Reporting StatusNo  
Entity Filer CategoryAccelerated Filer  
Entity Public Float  $ 123,763,000
Entity Common Stock, Shares Outstanding 8,592,975 
Document Fiscal Year Focus2011  
Document Fiscal Period FocusQ3  
Document Type10-Q  
Amendment Flagfalse  
Document Period End DateSep. 30, 2011