Note 3 - Summary of Significant Accounting Policies (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Note 3 - Summary of Significant Accounting Policies (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	3,000	23,000	3,000	23,000
Administrative Expenses [Member]
Note 3 - Summary of Significant Accounting Policies (Details) [Line Items]
Foreign Currency Transaction Gain (Loss), before Tax	$ 0.4	$ 0.2	$ 0.7	$ (1.5)
Cost of Products [Member]
Note 3 - Summary of Significant Accounting Policies (Details) [Line Items]
Foreign Currency Transaction Gain (Loss), before Tax	$ (0.3)	$ 0.2	$ (0.4)	$ 0.8
Restricted Stock Units (RSUs) [Member]
Note 3 - Summary of Significant Accounting Policies (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	12,000	10,000	12,000	30,000