Note 13 - Income Taxes (Detail) - Income Tax Expense (Benefit) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Current	$ 454	$ 261
Domestic -- Federal	396	(1,676)
Domestic -- state	(126)	(193)
Foreign	173	(596)
	443	(2,465)
Income tax expense (benefit)	897	(2,204)
Domestic, Federal [Member]
Current	362	148
Domestic, State [Member]
Current	62	133
Foreign [Member]
Current	$ 30	$ (20)