Note I - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

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

	2012		2011		2010
Current:
United States
Federal	$	1,681	$	2,278	$	(699	)
State		83		144		74
Foreign		826		642		565
Deferred:
United States
Federal		0		12		6,156
State		0		0		1,967
Foreign		607		675		(131	)
Total income tax expense	$	3,197	$	3,751	$	7,932

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

	2012			2011			2010
U.S. Federal statutory rate		35.0	%		35.0	%		35.0	%
State income taxes		5.1			3.9			3.9
Net results of foreign subsidiaries		(8.7	)		(9.5	)		(6.0	)
Valuation allowance		(38.5	)		(26.4	)		(45.2	)
Goodwill impairment		0.0			(1.9	)		0.0
Non-deductible executive compensation		0.0			(4.2	)		0.0
Other		(3.0	)		(3.1	)		(1.2	)
Total effective tax rate		(10.1	)%		(6.2	)%		(13.5	)%

Balances Of Deferred Tax Assets And Liabilities [Table Text Block]

	2012		2011
Net non-current deferred income tax assets	$	2,308	$	2,914

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

	2012			2011
Assets:
State taxes	$	9,620		$	5,242
Bad debt reserves		391			454
Inventory reserve and capitalized costs		2,951			2,959
Sales return reserve		546			686
Stock-based compensation		4,374			3,969
Foreign research and development credit		33			28
Alternative minimum tax credit and U.S. foreign tax credit		4,254			3,660
Palladium Contingent Purchase Price		61			77
Federal net operating losses		41,601			30,998
Foreign net operating losses		1,914			2,341
Other		2,538			2,257
Gross deferred tax assets		68,283			52,671
Liabilities:
Depreciation		(3,887	)		(3,808	)
Other		(451	)		(430	)
Gross deferred tax liabilities		(4,338	)		(4,238	)
Valuation allowance:
United States		(61,062	)		(45,147	)
Foreign		(575	)		(372	)
Valuation allowance		(61,637	)		(45,519	)
Net deferred tax asset	$	2,308		$	2,914

Uncertain Tax Position Liabilities [Table Text Block]

	2012			2011
Uncertain tax positions	$	7,827		$	7,112
Interest on uncertain tax positions		1,484			1,272
Total uncertain tax positions, gross		9,311			8,384
Less federal income tax benefit		(595	)		(568	)
Total uncertain tax positions, net	$	8,716		$	7,816

Uncertain Income Tax Expense [Table Text Block]

	2012		2011		2010
Income tax expense related to uncertain tax positions	$	715	$	810	$	137
Interest expense related to uncertain tax positions		212		228		141
Total income tax expense related to uncertain tax positions	$	927	$	1,038	$	278

Reconciliation of Uncertain Tax Positions Rollforward [Table Text Block]

	2012		2011
Beginning balance	$	8,384	$	7,346
Additions for uncertain tax positions:
Related to uncertain tax positions taken in the current year		715		810
Related to uncertain tax positions taken in prior years		212		228
Ending balance	$	9,311	$	8,384