Note 15 - Taxes on Income (Details) - Reconciliation of Unrecognized Tax Benefits (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Unrecognized Tax Benefits [Abstract]
Gross unrecognized tax benefits	$ 1,815	$ 1,115
Increases in tax positions for previous years	59	1,220
Increases in tax positions for current year	109
Increase in interest related to tax positions	193	102
Lapse in statute of limitations	(284)	(622)	(635)
Gross unrecognized tax benefits	$ 1,892	$ 1,815	$ 1,115