LONG-TERM DEBT AND NOTES PAYABLE	3 Months Ended
LONG-TERM DEBT AND NOTES PAYABLE	Mar. 31, 2012
LONG-TERM DEBT AND NOTES PAYABLE [Abstract]
LONG-TERM DEBT AND NOTES PAYABLE	NOTE 11 - LONG-TERM DEBT AND NOTES PAYABLE Credit Facility: We have a three-year, $40 million unsecured revolving credit facility with a lending institution pursuant to a Credit Agreement dated October 25, 2011 that expires on October 24, 2014. This facility replaced a three-year, $40 million unsecured revolving credit facility that matured on November 2, 2011. The Credit Agreement contains financial and non-financial covenants. The purpose of the facility is to provide liquidity for general corporate purposes, including working capital and power contract performance assurance requirements, in the form of funds borrowed and letters of credit. At March 31, 2012, there were $0.1 million in loans and $3.5 million in letters of credit outstanding under the credit facility. At December 31, 2011, there were $12.3 million in loans and $3.5 million in letters of credit outstanding under the credit facility.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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