Note 8 - Taxes on Income (Details) - Income Tax Rate Reconciliation	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Income Tax Rate Reconciliation [Abstract]
Statutory Federal income tax rate	34.00%	34.00%
State and local income taxes, net of Federal income tax benefit	2.30%	3.00%
Effect of change in unrecognized tax benefit	(2.00%)	(1.10%)
Untaxed foreign income	(6.00%)	(9.10%)
Non-deductible share-based employee compensation expense	2.30%	4.60%
Non-deductible portion of intangible asset impairment	0.00%	1.80%
Other items	0.50%	1.20%
Effective income tax rate	31.10%	34.40%