Note 8 - Business Combinations (Details) - Additional Shares Issued through Revenue Milestones (Parentheticals) (USD $) In Thousands, unless otherwise specified	12 Months Ended						24 Months Ended	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2015 Scenario, Forecast [Member] Revenue Milestone Requirement [Member]	Dec. 31, 2014 Scenario, Forecast [Member] Revenue Milestone Requirement [Member]	Dec. 31, 2014 Scenario, Forecast [Member] Revenue Milestone Requirement [Member]	Dec. 31, 2013 Revenue Milestone Requirement [Member]
Revenue Recognition, Milestone Method [Line Items]
Revenue Milestone	$ 47,407	[1]	$ 30,222	[1]	$ 16,500	$ 16,000	$ 33,000	$ 15,500

[1] Included in North America revenues are $25.1 million of revenues from external customers in the United States and included in EMEA revenues are $7.8 million of revenues from external customers in Sweden. No revenues from any other individual country makes up more than 10% of consolidated revenues.