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401(k) Plan	12 Months Ended
401(k) Plan	Mar. 31, 2013
Compensation and Retirement Disclosure [Abstract]
401(k) Plan	401(k) Plan We have an employee benefit plan pursuant to Section 401(k) of the Internal Revenue Code (the “401(k) Plan”) for certain qualified employees. Our contributions made to the 401(k) Plan are based on percentages of employees’ salaries. The total amount of our contribution is at the discretion of our Board of Directors. Our contributions under the 401(k) Plan for calendar 2012, 2011 and 2010 were approximately $585,000, $464,000 and $443,000, respectively. Our plan year ends on December 31. For the period of January 1, 2013 to March 31, 2013, we had paid $134,000 and accrued $31,000 for anticipated contributions related to the plan year ending December 31, 2013.

The entire disclosure for pension and other postretirement benefits.

+ References

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