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Employee Benefits	12 Months Ended
Employee Benefits	Dec. 31, 2012
Employee Benefits [Abstract]
Employee Benefits	15. Employee Benefits The Company has a qualified defined contribution plan that covers substantially all U.S. employees under Section 401(k) of the Internal Revenue Code. Under this plan, the Company's stipulated basic contribution matches a portion of the participants' contributions based upon a defined schedule. The Company's contributions to the plan were approximately $287,000, $271,000, and $245,000 for the years ended December 31, 2012, 2011, and 2010, respectively.

The entire disclosure for pension and other postretirement benefits.

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