Note 14 - Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 14 - Commitments and Contingencies (Details) [Line Items]
Operating Leases, Rent Expense	$ 2,389	$ 2,891	$ 3,375
Isreaeli Office of the Chief Scientist Royalties [Member]
Note 14 - Commitments and Contingencies (Details) [Line Items]
Loss Contingency Accrual	$ 1,822

Amount of loss contingency liability.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant