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Note D - Stock Based Compensation (Details) - Employee Stock Option Activity (USD $)
 9 Months Ended
Sep. 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
Exercised (1,790)
Exercised (in Dollars per share) $ 10.44
Cancelled/forfeited/expired (99,024)
Cancelled/forfeited/expired (in Dollars per share) $ 11.71
Outstanding at September 30, 2013 169,565
Outstanding at September 30, 2013 (in Dollars per share) $ 11.00
Outstanding at September 30, 2013 6 years 62 days
Outstanding at September 30, 2013 (in Dollars) $ 1,101,000 [1]
Exercisable at September 30, 2013 96,026
Exercisable at September 30, 2013 (in Dollars per share) $ 11.01
Exercisable at September 30, 2013 4 years 197 days
Exercisable at September 30, 2013 (in Dollars) $ 622,519 [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 September 30, 2013, was $17.49.