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Note D - Stock Based Compensation (Details) - Employee Stock Option Activity (USD $)
 6 Months Ended
Jun. 30, 2013
Employee Stock Option Activity [Abstract]  
Outstanding-beginning of year 235,379
Outstanding-beginning of year (in Dollars per share) $ 11.38
Granted 35,000
Granted (in Dollars per share) $ 10.44
Cancelled/forfeited/expired (19,376)
Cancelled/forfeited/expired (in Dollars per share) $ 13.94
Outstanding at June 30, 2013 251,003
Outstanding at June 30, 2013 (in Dollars per share) $ 11.05
Outstanding at June 30, 2013 6 years 6 months
Outstanding at June 30, 2013 (in Dollars) $ 25,640 [1]
Exercisable at June 30, 2013 137,600
Exercisable at June 30, 2013 (in Dollars per share) $ 11.10
Exercisable at June 30, 2013 4 years 328 days
Exercisable at June 30, 2013 (in Dollars) $ 25,640 [1]
[1] The intrinsic value of a stock option is the amount by which the market value of the underlying stock exceeds the exercise price of the option. The per share market value of our common stock, as determined by the closing price on June 30, 2013, was $10.25.