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Note 9 - 401(k) Retirement Benefit Plan
 12 Months Ended
Dec. 31, 2012
Pension and Other Postretirement Benefits Disclosure [Text Block]
Note 9 - 401(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 discretion of our Board of Directors, authorize an employer contribution based on a portion of the employees' contributions.  Since January 2010, we have matched 50% on the first 4% contributed by an employee, or a maximum of 2% of the employee’s income.  For 2012 and 2011, we contributed $243 and $381, respectively, to the 401(k) plan.