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Note 8 - Income Taxes (Detail) - The effective tax rate differs from the statutory rate as follows:
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Statutory rate – Federal US income tax 34.00% 34.00% 34.00%
State and local taxes 4.00% 4.00% 4.00%
Non-U.S. income tax at different rates 1.00% 2.00%  
Domestic production activities deduction (1.00%) (1.00%) (1.00%)
Other, net (1.00%) (2.00%) (1.00%)
Effective rate 37.00% 37.00% 36.00%