Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Year ended December 31,
	2012		2011			2010
United States	$	807	$	(2,031	)	$	2,770
International		17,083		15,757			28,650
Total	$	17,890	$	13,726		$	31,420

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year ended December 31,
	2012			2011			2010
Current:
Federal	$	840		$	447		$	1,369
State		3			(593)			15
Foreign		1,302			992			534
Deferred:
Federal		1,610			742			(1,415)
State		385			994			(848	)
Foreign		(11	)		(421	)		(61	)
Valuation allowance		(1,995	)		(1,736)			2,263
Income tax provision	$	2,134		$	425		$	1,857

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year ended December 31,
	2012			2011			2010
U.S. statutory federal tax rate		34.0	%		34.0	%		34.0	%
Research and development credits		(3.6	)		(0.5	)		(2.9	)
Stock compensation		0.1			5.6			(0.7)
Foreign income taxed at lower rates		(28.4	)		(31.8	)		(29.3	)
Change in valuation allowance on federal timing differences		7.0			(6.1)			4.3
Litigation reserves & other		2.8			1.9			0.5
Effective tax rate		11.9	%		3.1	%		5.9	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
	2012			2011
Deferred tax assets:
Research tax credits	$	4,930		$	5,162
Stock compensation		5,487			6,553
Other costs not currently deductible		2,424			2,767
Depreciation and amortization		317			774
Total deferred tax assets		13,158			15,256
Valuation allowance		(12,488	)		(14,596	)
Net deferred tax assets	$	670		$	660

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

Balance at January 1, 2010	$	9,006
Gross increase for tax positions of prior year		-
Gross increases for tax position of current year		983
Reductions for prior year tax positions		-
Settlement		(883	)
Reduction due to statutes expiring		-
Balance at December 31, 2010		9,106
Gross increase for tax positions of prior year		1,710
Gross increases for tax position of current year		1,388
Reductions for prior year tax positions		-
Settlement		-
Reduction due to statutes expiring		-
Balance at December 31, 2011		12,204
Gross increase for tax positions of prior year		188
Gross increases for tax position of current year		689
Reductions for prior year tax positions		-
Settlement		-
Reduction due to statutes expiring		-
Balance at December 31, 2012	$	13,081