Note 2 - Fair Value Measurement (Details) (USD $)	3 Months Ended	6 Months Ended			1 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	May 31, 2013	Apr. 30, 2014 Ordinary Share Warrants [Member]	Jun. 30, 2014 Ordinary Share Warrants [Member]	Apr. 30, 2014 Ordinary Share Warrants [Member]	Mar. 31, 2014 Ordinary Share Warrants [Member]	Dec. 31, 2013 Ordinary Share Warrants [Member]	May 31, 2013 Loan Agreement with Commercial Bank [Member]	May 31, 2013 Revolving Credit Facility [Member]
Note 2 - Fair Value Measurement (Details) [Line Items]
Debt Instrument, Face Amount										$ 6,000,000
Debt Instrument, Additional Borrowing Amount If Certain Revenue Milestones Are Met										1,000,000
Line of Credit Facility, Maximum Borrowing Capacity											5,000,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)				15,791
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)				$ 0.80
Stock Issued During Period, Shares, Warrant Exercised (in Shares)	15,148	18,830			15,148
Derivative Liability, Noncurrent			$ 296,000			$ 0	$ 318,000	$ 306,000	$ 296,000