Note 14 - Income Taxes (Details) - Deferred Tax Assets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred Tax Assets [Abstract]
Allowance for doubtful accounts	$ 15	$ 53	$ 60
Accrued expenses and other reserves	2,048	2,197	2,264
Tax credits, deferred R&D, and other	748	907	656
Net operating loss	5,535	25,980	24,931
Valuation allowance	(8,344)	(29,135)	(27,909)
Net total deferred taxes	$ 2	$ 2	$ 2