Note 5 - Taxes on Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	44.50%	43.70%	42.70%	40.90%
Current Income Tax Expense (Benefit)	$ 0.2	$ 0.2	$ 0.3	$ 0.4