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Note 7 - Retirement Plan (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Compensation and Retirement Disclosure [Abstract] |  |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 50,500 | $ 56,928 | $ 52,632

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- Details
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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