RISK MANAGEMENT AND DERIVATIVE FINANCIAL INSTRUMENTS (Details 3) (USD $)	3 Months Ended
Mar. 31, 2015 MWh
Transmission congestion rights (TCR) - 2015
Procurement guidelines
Monthly MWH Hedged	1,421.0
Monthly MWH Hedged, estimated fair value	$ 1,465,637
Electric \| Natural Gas Usage - Remainder 2015
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	57.00%
Dth Hedged Physical	800,000
Dth Hedged Financial	3,610,000
Average Price (in dollars per dth)	4.410
Electric \| Natural Gas Usage - 2016
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	42.00%
Dth Hedged Physical	1,976,000
Dth Hedged Financial	2,100,000
Average Price (in dollars per dth)	4.100
Electric \| Natural Gas Usage - 2017
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	20.00%
Dth Hedged Physical	782,900
Dth Hedged Financial	1,300,000
Average Price (in dollars per dth)	4.130
Electric \| Natural Gas Usage - 2018
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	10.00%
Dth Hedged Physical	565,000
Dth Hedged Financial	500,000
Average Price (in dollars per dth)	4.120
Electric \| Current Year Procurement Guidelines
Procurement guidelines
Maximum flexibility to hedge any future year's expected requirements (as a percent)	80.00%
Maximum percentage of volume to be hedged in any given month	100.00%
Electric \| First Year Procurement Guidelines
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	60.00%
Electric \| Second Year Procurement Guidelines
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	40.00%
Electric \| Third Year Procurement Guidelines
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	20.00%
Electric \| Fourth Year Procurement Guidelines
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	10.00%
Electric \| High end of range \| Current Year Procurement Guidelines
Volumes and percentage of anticipated volume of natural gas usage
% Hedged	100.00%

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Represents the maximum flexibility to hedge any future year's expected requirements.

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Maximum percentage of volume to be hedged in any given month.

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Represents the aggregate notional amount of derivative expressed in nonmonetary units.

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Nominal volume used to calculate payments on a derivative instrument.

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The notional amount of financial derivatives expressed in nonmonetary units.

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

The average forward price on the group of price risk forward or futures contracts, such as gas futures contracts.

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The percentage of expected requirements covered by the aggregate notional amount of derivative contracts expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract as a percentage of expected need.

+ References

No definition available.

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