401(k) Retirement Benefit Plan	12 Months Ended
Dec. 31, 2011
401(k) Retirement Benefit Plan [Abstract]
401(k) Retirement Benefit Plan	Note 9—Four Zero One(k) Retirement Benefit Plan We maintain a defined contribution 401(k) plan covering substantially all employees. Employees can contribute a portion of their salary or wages as prescribed under Section 401(k) of the Internal Revenue Code and, subject to certain limitations, we may, at the Board of Directors discretion, authorize an employer contribution based on a portion of the employees’ contributions. Effective February 2004, the Board of Directors approved our matching of employee contributions at the rate of 50% of the first 4% contributed by an employee, or a maximum of 2% of the employee’s income. In November 2005, the employer match was suspended in an effort to conserve cash. In October 2007, the employer match was reinstated at the rate of 50% of the first 4% contributed by an employee, or a maximum of 2% of the employee’s income. During the fourth quarter of 2009, the employer match was temporarily suspended in an effort to conserve cash and control costs. In January 2010, the employer match was reinstated at the rate of 50% of the first 4% contributed by an employee, or a maximum of 2% of the employee’s income. For 2011, 2010, and 2009 we contributed $381, $379, and $333, respectively.

401(k) Retirement Benefit Plan

12 Months Ended

Dec. 31, 2011

401(k) Retirement Benefit Plan [Abstract]

Note 9—Four Zero One(k) Retirement Benefit Plan

We maintain a defined contribution 401(k) plan covering substantially all employees. Employees can contribute a portion of their salary or wages as prescribed under Section 401(k) of the Internal Revenue Code and, subject to certain limitations, we may, at the Board of Directors discretion, authorize an employer contribution based on a portion of the employees’ contributions. Effective February 2004, the Board of Directors approved our matching of employee contributions at the rate of 50% of the first 4% contributed by an employee, or a maximum of 2% of the employee’s income. In November 2005, the employer match was suspended in an effort to conserve cash. In October 2007, the employer match was reinstated at the rate of 50% of the first 4% contributed by an employee, or a maximum of 2% of the employee’s income. During the fourth quarter of 2009, the employer match was temporarily suspended in an effort to conserve cash and control costs. In January 2010, the employer match was reinstated at the rate of 50% of the first 4% contributed by an employee, or a maximum of 2% of the employee’s income. For 2011, 2010, and 2009 we contributed $381, $379, and $333, respectively.