Note I - Income Taxes (Detail) - Uncertain Tax Positions In Other Liabilities (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Uncertain tax positions	$ 7,827	$ 7,112
Interest on uncertain tax positions	1,484	1,272
Total uncertain tax positions, gross	9,311	8,384
Less federal income tax benefit	(595)	(568)
Total uncertain tax positions, net	$ 8,716	$ 7,816