Note 5 - Taxes on Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	45.40%	40.90%	44.20%	40.90%
Current Income Tax Expense (Benefit)	$ 0.5	$ 0.2	$ 0.8	$ 0.6