Unaudited Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Apr. 28, 2012	Jan. 28, 2012
Assets
Cash and cash equivalents	$ 79,050	$ 44,283
Short-term marketable securities	7,329	42,134
Restricted cash	1,769	1,769
Accounts receivable, net	23,575	21,180
Inventories	18,611	22,037
Deferred tax assets	4,831	4,832
Prepaid expenses and other current assets	7,353	7,234
Total current assets	142,518	143,469
Long-term marketable securities	52,825	62,022
Software, equipment and leasehold improvements, net	18,153	19,609
Intangible assets, net	43,577	45,656
Deferred tax assets, net of current portion	16,598	16,595
Notes receivable, net of current portion	2,750	3,000
Long-term investments	6,444	6,443
Other non-current assets	496	430
Total assets	283,361	297,224
Liabilities and Shareholders' Equity
Accounts payable	7,764	8,438
Accrued liabilities	21,512	24,081
Total current liabilities	29,276	32,519
Other long-term liabilities	15,031	15,168
Long-term deferred tax liabilities	1,062	1,062
Total liabilities	45,369	48,749
Common stock and additional paid-in capital	463,127	460,246
Treasury stock	(85,941)	(85,941)
Accumulated other comprehensive income	941	603
Accumulated deficit	(140,135)	(126,433)
Total shareholders' equity	237,992	248,475
Total liabilities and shareholders' equity	$ 283,361	$ 297,224