Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
Nov. 01, 2014	Nov. 02, 2013
Cash flows from operating activities:
Net loss	$ (18,091)	$ (12,302)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	16,153	14,764
Stock-based compensation	4,578	5,387
Provision for excess and obsolete inventory	2,397	613
(Release of) provision for sales returns, discounts and doubtful accounts	368	250
Deferred income taxes	(3,123)	3,491
Gain on sale of development project		(1,079)
Impairment of IP, mask sets and design tools	2,122	750
Tax effect related to stock options	(620)
Excess tax expense from stock-based compensation	620
Impairment of investment	601	300
Other non-cash activities	70	(148)
Changes in operating assets and liabilities:
Accounts receivable	1,313	(17,859)
Inventory	(2,103)	5,139
Prepaid expenses and other current and non-current assets	1,725	3,157
Accounts payable	4,141	3,371
Accrued liabilities, compensation and related benefits	5,310	1,214
Income taxes payable	(273)	1,619
Other long-term liabilities	(2,428)	(313)
Net cash provided by operating activities	12,760	8,354
Cash flows from investing activities:
Restricted cash	275	(2)
Purchases of marketable securities	(3,079)	(17,732)
Sales and maturities of marketable securities	13,233	13,240
Purchases of software, equipment and leasehold improvements	(5,161)	(6,534)
Proceeds from sale of development project, net of transaction fees		1,971
Proceeds from sale of privately-held investment		2,137
Repayment of note receivable	230	450
Purchases of IP	(2,443)	(4,046)
Net cash provided by (used in) investing activities	3,055	(10,516)
Cash flows from financing activities:
Excess tax benefit from stock-based compensation	36
Net proceeds from exercises of employee stock options and stock purchase rights	1,270	1,448
Net cash provided by financing activities	1,306	1,448
Effect of foreign exchange rate changes on cash and cash equivalents	(151)	(178)
Net increase (decrease) in cash and cash equivalents	16,970	(892)
Cash and cash equivalents, beginning of period	64,326	51,218
Cash and cash equivalents, end of period	81,296	50,326
Supplemental disclosure of cash flow information:
Cash paid for income taxes	$ 5,596	$ 5,149

"Total deduction from sales during the period arising from goods returned by customers (other than under warranty provisions) and price reductions given by the entity due to defective, nonconforming goods or pricing discount. Returns and discount are a deduction from gross revenue in arriving at net revenue. Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected)."

No definition available.