Note 5 - Income Taxes (Details) - Unrecognized Tax Benefit (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Unrecognized Tax Benefit [Abstract]
Balance	$ 820	$ 784
Additions based on tax positions—previous years	32	22
Effect of exchange rate changes	33	14
Balance	$ 885	$ 820