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Note 8 - Taxes on Income (Tax Benefits) (Detail) - Valuation Allowance Activity (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Balance, at beginning of year	$ 5,083	$ 4,857	$ 2,993
Additions	1,058	499	492
Reversals	(1,352)	(570)	(309)
Other adjustments	(98)	297	1,681
Balance, at end of year	$ 4,691	$ 5,083	$ 4,857

The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.

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- Definition

The amount of the change in the period in the valuation allowance for a specified deferred tax asset.

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