Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
3 Months Ended
Apr. 29, 2017
Apr. 30, 2016
Cash flows from operating activities    
Net loss $ (14,859) $ (8,098)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:    
Depreciation and amortization 4,277 6,178
Stock-based compensation 1,529 1,892
Provision for excess and obsolete inventory 449 101
Provision for (recovery of) sales returns, discounts and doubtful accounts 11 (402)
Deferred income taxes (81) (101)
Impairment of IP 3,006
Impairment of privately-held investment 300
Other non-cash activities 313
Changes in operating assets and liabilities:    
Accounts receivable 8,880 (7,441)
Inventory (1,167) 2,300
Prepaid expenses, other current and non-current assets (337) (1,437)
Accounts payable 3,411 (2,043)
Other long-term liabilities, accrued liabilities, compensation and related benefits 2,352 2,881
Income taxes payable 732 1,008
Net cash provided by (used in) operating activities 8,516 (4,862)
Cash flows from investing activities    
Restricted cash (15) 77
Sales and maturities of marketable securities 2,003 11
Purchases of software, equipment and leasehold improvements (4,118) (810)
Purchases of IP (1,044) (1,838)
Net cash used in investing activities (3,174) (2,560)
Cash flows from financing activities    
Net proceeds from exercise of employee stock options and stock purchase rights 6 136
Net share settlement of equity awards issued to employees (84) (264)
Net cash used in financing activities (78) (128)
Effect of foreign exchange rate changes on cash and cash equivalents 8 88
Net increase (decrease) in cash and cash equivalents 5,272 (7,462)
Cash and cash equivalents, beginning of period 66,425 63,790
Cash and cash equivalents, end of period 71,697 56,328
Supplemental disclosure of cash flow information    
Cash paid for income taxes $ 349 $ 383