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Note 11 - Employee Benefit Programs (Detail) - Summary of assumptions used to determine net periodic benefit costs:	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Used to determine net periodic benefit costs:
Discount rate	4.75%	5.25%	5.75%
Expected rate of return on assets	8.15%	8.30%	8.50%

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

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