Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 USD ($) shares
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Number of Major Customers	1	1
Concentration Risk, Percentage	51.00%	38.00%
Minimum [Member]
Cash with European Union Banks	$ 1,000
Maximum [Member]
Cash with European Union Banks	10,000
Goodwill, Impairment Loss	$ (8,542)	$ 0	$ 0
Original Maturity Period of Temporary Cash Investments Considered as Cash Equivalents, Maximum	90 days
Interest Costs Capitalized	$ 534	128	298
Foreign Currency Transaction Gain (Loss), Realized	$ (605)	$ 186	$ (133)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares	342,961	940,038	916,350