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Note 2 - Stock-based Compensation (Details) - Stock Options (USD $)
6 Months Ended
Jun. 30, 2013
Stock Options [Abstract]  
Outstanding at June 30, 2013 270,500
Outstanding at June 30, 2013 (in Dollars per share) $ 1.75
Outstanding at June 30, 2013 7 years 36 days
Outstanding at June 30, 2013 (in Dollars) $ 7,680
Vested and exercisable at June 30, 2013 170,000
Vested and exercisable at June 30, 2013 (in Dollars per share) $ 1.87
Vested and exercisable at June 30, 2013 6 years 109 days
Vested and exercisable at June 30, 2013 (in Dollars) $ 7,680