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Document and Entity Information - USD ($)
 3 Months Ended
Mar. 31, 2016
May. 03, 2016
Jun. 30, 2015
Entity Information [Line Items]      
Entity Registrant Name Artesian Resources Corporation    
Entity Central Index Key 0000863110    
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 Accelerated Filer    
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus Q1    
Document Type 10-Q    
Amendment Flag true    
Amendment Description Artesian Resources Corporation, or the Company, is filing this amendment, or Form 10-Q/A, to our Quarterly Report on Form 10-Q for the quarter ended March 31, 2016, or Form 10-Q, filed with the U.S. Securities and Exchange Commission on May 6, 2016, solely to amend a certification to correct the certification date. Specifically, the Company is amending the certification included as Exhibit 31.2 on Form 10-Q. The certification date of Exhibit 31.2 on Form 10-Q inadvertently noted March 6, 2016 as the certification date, whereas the correct certification date is May 6, 2016. In addition, as required by Rule 12b-15 of the Securities Exchange Act of 1934, new certifications by our principal executive officer and principal financial officer are included as exhibits to this amendment. This Form 10-Q/A should be read in conjunction with the original Form 10-Q, which continues to speak as of the date of the Form 10-Q. Except as specifically noted above, no other changes have been made to the Form 10-Q. This Form 10-Q/A does not modify or update the financial results or disclosures in the original Form 10-Q. Accordingly, this Form 10-Q/A does not reflect events occurring after the filing of the Form 10-Q or modify or update any related or other disclosures.    
Document Period End Date Mar. 31, 2016    
Class A Stock [Member]      
Entity Information [Line Items]      
Entity Public Float     $ 164,631,000
Entity Common Stock, Shares Outstanding   8,192,449  
Class B Stock [Member]      
Entity Information [Line Items]      
Entity Public Float     $ 6,575,000
Entity Common Stock, Shares Outstanding   881,452