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COMMITMENTS AND CONTINGENCIES (Details) gal in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 1997 | Dec. 31, 2015 USD ($) a gal | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2003
Leases [Abstract] |  |  |  |  |
Easement payments |  | $ 35,000 | $ 34,000 | $ 33,000 |
Summary of minimum annual rental payments related to operating leases [Abstract] |  |  |  |  |
2016 |  | 75,000 |  |  |
2017 |  | 54,000 |  |  |
2018 |  | 55,000 |  |  |
2019 |  | 57,000 |  |  |
2020 |  | 58,000 |  |  |
2021 through 2043 |  | 1,475,000 |  |  |
Total |  | 1,774,000 |  |  |
Summary of minimum annual purchase commitments for all interconnection agreements [Abstract] |  |  |  |  |
2016 |  | 3,829,000 |  |  |
2017 |  | 3,819,000 |  |  |
2018 |  | 3,819,000 |  |  |
2019 |  | 3,819,000 |  |  |
2020 |  | 3,829,000 |  |  |
2021 |  | 3,819,000 |  |  |
Total |  | 22,934,000 |  |  |
Expenses for purchased water |  | 4,000,000 | 4,000,000 | 4,000,000 |
Other Commitments [Abstract] |  |  |  |  |
Tank painting expense |  | 329,000 | 342,000 | 377,000 |
Artesian Water [Member] |  |  |  |  |
Leases [Abstract] |  |  |  |  |
Operating lease period | 33 years |  |  |  |
Rental payments |  | $ 16,000 | 15,900 | $ 15,700 |
Interconnections [Abstract] |  |  |  |  |
Multiplier to estimate minimum purchase requirements for the year | gal |  | 3 |  |  |
Minimum purchase requirements of water | gal |  | 1,459 |  |  |
Minimum reduced purchase requirements of water | gal |  | 1,095 |  |  |
Other Commitments [Abstract] |  |  |  |  |
Agreement period |  | 3 years |  | 3 years |
Commitment amount |  | $ 113,000 |  | $ 804,000 |
Summary of other commitment [Abstract] |  |  |  |  |
2016 |  | 4,235,000 |  |  |
2017 |  | 1,830,000 |  |  |
2018 |  | 1,410,000 |  |  |
Total |  | 7,475,000 |  |  |
Artesian Resources [Member] |  |  |  |  |
Leases [Abstract] |  |  |  |  |
Easement agreement period |  |  |  |  | 40 years
Artesian Wastewater [Member] |  |  |  |  |
Leases [Abstract] |  |  |  |  |
Rental payments |  | $ 43,000 | $ 43,000 | $ 41,700 |
Adjustment Factor |  | 2.00% |  |  |
Area of land use as per perpetual agreement (in acres) | a |  | 460 |  |  |
Minimum rentals payment per year |  | $ 40,000 |  |  |
Termination Period |  | 180 days |  |  |

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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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- Definition Minimum amount of other commitment maturing in the next fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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- Definition Minimum amount of other commitment maturing in the third fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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