Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jan. 31, 2015	Feb. 01, 2014
Current assets
Cash and cash equivalents	$ 83,502	$ 64,326
Short-term marketable securities	6,347	7,791
Restricted cash	400	1,775
Accounts receivable, net of allowances of $1,502 as of January 31, 2015 and $300 as of February 1, 2014	26,415	27,647
Inventory	20,445	20,403
Deferred tax assets	3,319	4,144
Prepaid expenses and other current assets	8,805	8,069
Total current assets	149,233	134,155
Long-term marketable securities	4,249	15,505
Software, equipment and leasehold improvements, net	21,594	27,089
Intangible assets, net	24,642	29,780
Deferred tax assets, net of current portion	687	439
Long-term investments and notes receivable, net of current portion	3,267	3,873
Other non-current assets	1,661	4,934
Total assets	205,333	215,775
Current liabilities
Accounts payable	21,207	16,184
Accrued compensation and related benefits	6,806	6,288
Accrued liabilities	22,894	19,813
Total current liabilities	50,907	42,285
Income taxes payable	7,573	7,065
Long-term deferred tax liabilities	741	976
Other long-term liabilities	2,822	7,058
Total liabilities	62,043	57,384
Commitments and contingencies (Note 11)
Shareholders' equity
Preferred stock; no par value, 2,000,000 shares authorized; none issued and outstanding	0	0
Common stock and additional paid-in capital; no par value; 100,000,000 shares authorized; 39,973,689 issued and 35,314,546 outstanding as of January 31, 2015 and 39,083,961 issued and 34,424,818 outstanding as of February 1, 2014	493,550	485,188
Treasury stock, at cost, 4,659,143 shares as of January 31, 2015 and February 1, 2014	(88,198)	(88,198)
Accumulated other comprehensive (loss) income	(1,111)	651
Accumulated deficit	(260,951)	(239,250)
Total shareholders' equity	143,290	158,391
Total liabilities and shareholders' equity	$ 205,333	$ 215,775