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Note 10 - Defined Contribution Plans	12 Months Ended
Note 10 - Defined Contribution Plans	Dec. 31, 2012
Compensation and Employee Benefit Plans [Text Block]	10. DEFINED CONTRIBUTION PLANS We maintain a 401(k) defined contribution plan covering all U.S. employees. Our matching contributions, net of forfeitures, under the plan, which are optional and based on the level of individual participant’s contributions, amounted to $37,000 and $38,000 in 2012 and 2011, respectively.