Note 15 - Interest Rate Fluctuations (Detail) - Outstanding lines of credit (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
US Dollars (in Dollars)	$ 1,450	[1]
United States [Member] | Minimum [Member]
Variable Interest Rate	4.50%	[2]
United States [Member]
US Dollars (in Dollars)	673	[1]
International [Member] | Minimum [Member]
Variable Interest Rate	0.10%	[2]
International [Member] | Maximum [Member]
Variable Interest Rate	9.70%	[2]
International [Member]
Variable Interest Rate		[2]
US Dollars (in Dollars)	$ 777	[1]

[1] Based on exchange rate at June 30, 2012.

[2] Based on interest rate at June 30, 2012.