Unaudited Condensed Consolidated Balance Sheets - USD ($)	Oct. 31, 2015	Jan. 31, 2015
Current assets
Cash and cash equivalents	$ 67,164,000	$ 83,502,000
Short-term marketable securities	24,528,000	6,347,000
Restricted cash	400,000	400,000
Accounts receivable, net of allowances of $2,229 as of October 31, 2015 and $1,502 as of January 31, 2015	30,971,000	26,415,000
Inventory	27,953,000	20,445,000
Deferred tax assets	3,259,000	3,319,000
Prepaid expenses and other current assets	11,704,000	8,805,000
Total current assets	165,979,000	149,233,000
Long-term marketable securities	3,537,000	4,249,000
Software, equipment and leasehold improvements, net	16,638,000	21,594,000
Intangible assets, net	24,318,000	24,642,000
Deferred tax assets, net of current portion	645,000	687,000
Long-term investments, net of current portion	3,132,000	3,267,000
Other non-current assets	7,586,000	1,661,000
Total assets	221,835,000	205,333,000
Current liabilities
Accounts payable	26,664,000	21,207,000
Accrued compensation and related benefits	8,684,000	6,806,000
Accrued liabilities	12,451,000	22,894,000
Total current liabilities	47,799,000	50,907,000
Income taxes payable	10,475,000	7,573,000
Long-term deferred tax liabilities	423,000	741,000
Other long-term liabilities	6,439,000	2,822,000
Total liabilities	$ 65,136,000	$ 62,043,000
Commitments and contingencies (Note 9)
Shareholders’ equity
Preferred stock; no par value, authorized 2,000,000 shares, none issued and outstanding	$ 0	$ 0
Common stock and additional paid-in capital; no par value; 100,000,000 shares authorized; 41,016,710 issued and 36,357,567 outstanding as of October 31, 2015 and 39,973,689 issued and 35,314,546 outstanding as of January 31, 2015	501,101,000	493,550,000
Treasury stock, at cost, 4,659,143 shares as of October 31, 2015 and January 31, 2015	(88,198,000)	(88,198,000)
Accumulated other comprehensive loss	(1,602,000)	(1,111,000)
Accumulated deficit	(254,602,000)	(260,951,000)
Total shareholders’ equity	156,699,000	143,290,000
Total liabilities and shareholders’ equity	$ 221,835,000	$ 205,333,000