Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Feb. 02, 2013	Jan. 28, 2012
Current assets
Cash and cash equivalents	$ 51,218	$ 44,283
Short-term marketable securities	17,455	42,134
Restricted cash	1,769	1,769
Accounts receivable, net of allowances of $295 in 2013 and $537 in 2012	21,648	21,180
Inventory	24,929	22,037
Deferred tax assets	5,868	4,832
Prepaid expenses and other current assets	13,578	7,234
Total current assets	136,465	143,469
Long-term marketable securities	14,253	62,022
Software, equipment and leasehold improvements, net	17,106	19,609
Intangible assets, net	36,573	45,656
Deferred tax assets, net of current portion	2,681	16,595
Long-term investments and notes receivable, net of current portion	8,943	9,443
Other non-current assets	4,810	430
Total assets	220,831	297,224
Current liabilities
Accounts payable	11,046	8,438
Accrued compensation and related benefits	10,070	8,957
Accrued liabilities	18,721	15,124
Total current liabilities	39,837	32,519
Income taxes payable	17,723	13,609
Long-term deferred tax liabilities	804	1,062
Other long-term liabilities	449	1,559
Total liabilities	58,813	48,749
Commitments and contingencies (Note 15)
Shareholders' equity
Preferred stock; no par value, 2,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock and additional paid-in capital; no par value; 100,000,000 shares authorized; 38,234,357 issued and 34,042,045 outstanding in 2013 and 37,070,578 issued and 32,878,266 outstanding in 2012	475,070	460,246
Treasury stock, at cost, 4,192,312 shares in 2013 and in 2012	(85,941)	(85,941)
Accumulated other comprehensive income	1,090	603
Accumulated deficit	(228,201)	(126,433)
Total shareholders' equity	162,018	248,475
Total liabilities and shareholders' equity	$ 220,831	$ 297,224