Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Significant Accounting Policies [Abstract]

Estimated useful lives of property and equipment

Computer equipment and purchased software	3 years
Machinery and equipment	3-5 years
Furniture and fixtures	5 years

Advertising

	Year ended December 31,
	2012		2011		2010
	(In thousands)
Advertising expense	$	152	$	192	$	13

Detail of comprehensive income loss

	Year Ended December 31, 2012
	Unrealized Gains and Losses on Available-for Sale Securities			Foreign Currency Items		Total
	(In thousands)
Beginning balance	$	17		$	101	$	118
Other comprehensive income (loss) before reclassifications		(9	)		0		(9	)
Amounts reclassified from accumulated other comprehensive income (loss)		0			0		0
Net current period other comprehensive income (loss)		(9	)		0		(9	)
Ending Balance	$	8		$	101	$	109