Financing Arrangements	6 Months Ended
Financing Arrangements	Jul. 31, 2014
Debt Disclosure [Abstract]
Financing Arrangements	NOTE 8 - FINANCING ARRANGEMENTS The Company maintains financing arrangements with Bank of America (the “Bank”). The financing arrangements, as amended, provide a revolving loan with a maximum borrowing amount of $4.25 million that is available until May 31, 2015, with interest at LIBOR plus 2.25%. Borrowing availability in the total amount of $1.35 million has been designated to cover letters of credit issued by the Bank, with expiration dates ranging from September 23, 2014 to November 5, 2014, in support of the project development activities of a potential power plant owner. The Company may obtain standby letters of credit from the Bank for use in the ordinary course of business not to exceed $10.0 million. There were no actual borrowings outstanding under the Bank financing arrangements as of July 31, 2014 or January 31, 2014. The Company has pledged the majority of its assets to secure the financing arrangements. The Bank’s consent is required for acquisitions, divestitures, cash dividends and significant investments. The Bank requires that the Company comply with certain financial covenants at its fiscal year-end and at each of its fiscal quarter-ends. At July 31, 2014 and January 31, 2014, the Company was in compliance with the financial covenants of its amended financing arrangements. Management believes that the Company will continue to comply with its financial covenants under the financing arrangements.

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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