Balance Sheet Details (Tables)

12 Months Ended

Dec. 31, 2012

Organization, Basis of Presentation and Summary of Significant Accounting Policies and Balance Sheet Details [Abstract]

Schedule of available-for-sale securities, contractual maturities

Available-for-sale securities with contractual maturities of less than 12 months were as follows (in thousands):

	December 31, 2012								December 31, 2011
			Amortized cost basis		Gross unrealized loss			Fair value			Amortized cost basis		Gross unrealized loss			Fair value
Corporate notes, bonds and paper		$	9,091	$	(7	)	$	9,084		$	31,217	$	(37	)	$	31,180
Government securities/money market			4,245		(1	)		4,244			7,321		(4	)		7,317
Total		$	13,336	$	(8	)	$	13,328		$	38,538	$	(41	)	$	38,497

Summary of equipment and improvements

Equipment and improvements consist of the following (in thousands):

	December 31,
	2012			2011
Computer hardware, software, and equipment	$	16,122		$	16,277
Leasehold improvements		6,368			6,283
Office furniture and fixtures		1,611			1,712
		24,101			24,272
Less accumulated depreciation and amortization		(12,890	)		(8,790	)
Equipment and improvements, net	$	11,211		$	15,482

Summary of accrued liabilities

Accrued liabilities consist of the following (in thousands):

	December 31,
	2012		2011
Salaries and benefits	$	4,061	$	4,417
Restructuring		8		1,665
Earnouts/holdbacks		-		1,210
Royalties and revenue sharing		544		326
Income taxes		167		(53	)
Marketing expenses, rebates and other		49		76
Total accrued liabilities	$	4,829	$	7,641