BANK LINE OF CREDIT	6 Months Ended
BANK LINE OF CREDIT	Jun. 30, 2011
Debt Disclosure [Abstract]
BANK LINE OF CREDIT [Text Block]	BANK LINE OF CREDIT: In February 2011, the Company entered into an unsecured credit agreement with a bank (the “Credit Agreement”). Pursuant to the Credit Agreement, the Company can request, from time to time until February 2013, advances in an amount not to exceed an aggregate principal amount of $50.0 million, the proceeds of which can be used for working capital requirements and other general corporate purposes. The agreement also covers advances for commercial letters of credit. At June 30, 2011, the Company had a $0.1 million outstanding letter of credit for a capital purchase deposit. The terms of this credit agreement require the Company to remain in compliance with certain financial and other covenants.

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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