Note J - Stock-Based Compensation (Detail) - Stock Option Activity (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Outstanding on January 1, 2013	1,914,000
Outstanding on January 1, 2013 (in Dollars per share)	$ 11.38
Exercised	0
Exercised (in Dollars per share)	$ 0
Expired or forfeited	(25,000)
Expired or forfeited (in Dollars per share)	$ 9.16
Outstanding on March 31, 2013	1,889,000
Outstanding on March 31, 2013 (in Dollars per share)	$ 11.41
Outstanding on March 31, 2013	4 years
Outstanding on March 31, 2013 (in Dollars)	$ 97
Exercisable on March 31, 2013	1,814,000
Exercisable on March 31, 2013 (in Dollars per share)	$ 11.50
Exercisable on March 31, 2013	3 years 328 days
Exercisable on March 31, 2013 (in Dollars)	$ 97