Note 15 - Interest Rate Fluctuations (Detail) - Outstanding lines of credit and other debt (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
US Dollars (in Dollars)	$ 1,230	[1]
United States [Member]
Variable Interest Rate	3.50%	[2]
US Dollars (in Dollars)	713	[1]
International [Member] | Minimum [Member]
Variable Interest Rate	0.10%	[2]
International [Member] | Maximum [Member]
Variable Interest Rate	9.10%	[2]
International [Member]
US Dollars (in Dollars)	$ 517	[1]

[1] Based on exchange rate at March 31, 2013.

[2] Based on interest rate at March 31, 2013.