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NON-UTILITY OPERATING REVENUE AND EXPENSES (Details) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Public Utility, Property, Plant and Equipment [Line Items] |  |  |
Non-utility operating revenue | $ 3,974,000 | $ 3,787,000 | $ 4,204,000
Summary of non-utility operating expenses [Abstract] |  |  |
Non-utility operating expenses | 2,121,000 | 2,100,000 | 3,148,000
Artesian Utility [Member] |  |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |  |
Non-utility operating revenue | 3,900,000 | 3,200,000 | 1,900,000
Summary of non-utility operating expenses [Abstract] |  |  |
Non-utility operating expenses | 2,052,000 | 1,777,000 | 1,823,000
Artesian Development [Member] |  |  |
Summary of non-utility operating expenses [Abstract] |  |  |
Non-utility operating expenses | 40,000 | 42,000 | 39,000
Artesian Resources [Member] |  |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |  |
Non-utility operating revenue | 0 | 600,000 | 2,100,000
Summary of non-utility operating expenses [Abstract] |  |  |
Non-utility operating expenses | 0 | 263,000 | 993,000
Artesian Consulting Engineers [Member] |  |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |  |
Non-utility operating revenue |  |  | 175,000
Summary of non-utility operating expenses [Abstract] |  |  |
Non-utility operating expenses | $ 29,000 | $ 18,000 | $ 293,000

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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Article 5 + Details
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- Definition Revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a),(d)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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