Sigma Designs (SIGM) 10-Q 7 Sep 17 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jul. 29, 2017	Aug. 31, 2017
Document Information [Line Items]
Entity Registrant Name	SIGMA DESIGNS INC
Entity Central Index Key	790,715
Trading Symbol	sigm
Current Fiscal Year End Date	--02-03
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		38,515,791
Document Type	10-Q
Document Period End Date	Jul. 29, 2017
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 29, 2017	Jan. 28, 2017
Current assets
Cash and cash equivalents	$ 65,912	$ 66,425
Short-term marketable securities	1,284	4,781
Restricted cash	323	303
Accounts receivable, net of allowances of $1,658 as of July 29, 2017 and $1,630 as of January 28, 2017	24,949	35,860
Inventory	16,147	18,147
Prepaid expenses and other current assets	7,490	8,017
Total current assets	116,105	133,533
Software, equipment and leasehold improvements, net	20,145	18,523
Intangible assets, net	27,199	30,744
Goodwill	10,594	10,594
Deferred tax assets	710	625
Long-term investments	1,820	2,000
Other non-current assets	5,147	5,755
Total assets	181,720	201,774
Current liabilities
Accounts payable	15,561	14,230
Accrued compensation and related benefits	8,177	8,127
Accrued liabilities	14,953	13,607
Total current liabilities	38,691	35,964
Income taxes payable	12,241	15,752
Long-term deferred tax liabilities	287	287
Other long-term liabilities	4,838	6,225
Total liabilities	56,057	58,228
Commitments and contingencies (Note 6)
Shareholders’ equity
Preferred stock; no par value, authorized 2,000,000 shares, none issued and outstanding
Common stock and additional paid-in capital; no par value; 100,000,000 shares authorized; 43,170,314 issued and 38,494,565 outstanding as of July 29, 2017 and 42,806,279 issued and 38,130,530 outstanding as of January 28, 2017	517,030	513,168
Treasury stock, at cost, 4,675,749 shares as of July 29, 2017 and January 28, 2017	(88,336)	(88,336)
Accumulated other comprehensive loss	(989)	(2,178)
Accumulated deficit	(302,042)	(279,108)
Total shareholders’ equity	125,663	143,546
Total liabilities and shareholders’ equity	$ 181,720	$ 201,774

Unaudited Condensed Consolidat3

Unaudited Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) $ / shares in Thousands, $ in Thousands	Jul. 29, 2017	Jan. 28, 2017
Accounts receivable, allowances	$ 1,658	$ 1,630
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	43,170,314	42,806,279
Common stock, shares outstanding (in shares)	38,494,565	38,130,530
Treasury stock, shares (in shares)	4,675,749	4,675,749

Unaudited Condensed Consolidat4

Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Net revenue	$ 39,508	$ 61,316	$ 79,072	$ 115,091
Cost of revenue	20,688	31,734	41,628	61,508
Gross profit	18,820	29,582	37,444	53,583
Operating expenses
Research and development	17,993	18,836	36,162	37,991
Sales and marketing	5,113	5,939	10,486	11,662
General and administrative	4,945	4,820	10,155	9,958
Restructuring charges	1,723		1,966
Impairment of IP		300	3,006	300
Total operating expenses	29,774	29,895	61,775	59,911
Loss from operations	(10,954)	(313)	(24,331)	(6,328)
Interest and other (expense) income, net	(758)	415	(1,223)	(336)
(Loss) income before income taxes	(11,712)	102	(25,554)	(6,664)
Provision for income taxes	965	1,824	1,982	3,156
Net loss	$ (12,677)	$ (1,722)	$ (27,536)	$ (9,820)
Net loss per common share:
Basic (in dollars per share)	$ (0.33)	$ (0.05)	$ (0.72)	$ (0.27)
Diluted (in dollars per share)	$ (0.33)	$ (0.05)	$ (0.72)	$ (0.27)
Shares used in computing net loss per share:
Basic (in shares)	38,289	37,182	38,222	37,028
Diluted (in shares)	38,289	37,182	38,222	37,028

Unaudited Condensed Consolidat5

Unaudited Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Net loss	$ (12,677)	$ (1,722)	$ (27,536)	$ (9,820)
Other comprehensive income (loss):
Change in currency translation adjustments, net of tax	935	(365)	1,180	215
Change in unrealized gains on marketable securities, net of tax	5	31	8	52
Other comprehensive income (loss)	940	(334)	1,188	267
Comprehensive loss	$ (11,737)	$ (2,056)	$ (26,348)	$ (9,553)

Unaudited Condensed Consolidat6

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016
Cash flows from operating activities:
Net loss	$ (27,536)	$ (9,820)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	8,347	11,579
Stock-based compensation	2,764	3,643
Provision for excess and obsolete inventory	897	683
Provision for (recovery of) sales returns, discounts and doubtful accounts	28	(13)
Deferred income taxes	(91)	(238)
Impairment of IP	3,006	300
Impairment of privately-held investment		886
Other non-cash activities	(391)	(472)
Changes in operating assets and liabilities:
Accounts receivable	10,884	(15,536)
Inventory	1,103	4,573
Prepaid expenses, other current and non-current assets	1,633	3,778
Accounts payable	1,452	(3,766)
Other long-term liabilities, accrued liabilities, compensation and related benefits	2,197	4,437
Income taxes payable	(5)	2,699
Net cash provided by operating activities	4,288	2,733
Cash flows from investing activities:
Restricted cash	(20)	82
Purchases of marketable securities	(645)
Sales and maturities of marketable securities and long-term investment	4,330	3,577
Purchases of software, equipment and leasehold improvements	(6,489)	(2,685)
Purchases of IP	(3,170)	(2,431)
Reimbursement of costs related to purchased IP		2,212
Net cash (used in) provided by investing activities	(5,994)	755
Cash flows from financing activities:
Net share settlement of equity awards issued to employees	(198)	(375)
Net proceeds from exercise of employee stock options and stock purchase rights	1,296	1,515
Net cash provided by financing activities	1,098	1,140
Effect of foreign exchange rate changes on cash and cash equivalents	95	(65)
Net (decrease) increase in cash and cash equivalents	(513)	4,563
Cash and cash equivalents, beginning of period	66,425	63,790
Cash and cash equivalents, end of period	65,912	68,353
Supplemental disclosure of cash flow information:
Cash paid for income taxes	$ 2,180	$ 654

Note 1 - Organization and Summa

Note 1 - Organization and Summary of Significant Accounting Policies	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	1. Organization and nature of operations: two . A majority of our primary products are semiconductors that are targeted toward end-product manufacturers, Original Equipment Manufacturers (“OEMs”), and Original Design Manufacturers (“ODMs”), however, a certain amount of non-recurring engineering services, development kit sales, and licensing revenue are also derived from our target markets. Additionally, we derive a minor portion of our revenue from non-core licensing and other activities, which is reported under the License and other markets. Basis of presentation: 13 second 2018 2017 July 29, 2017 ( 91 July 30, 2016 ( 91 The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”). They do not January 28, 2017, 2017 10 March 30, 2017, 2017 The condensed consolidated financial statements included herein are unaudited; however, they contain all normal recurring accruals and adjustments that, in our opinion, are necessary to present fairly our consolidated financial position at July 29, 2017 January 28, 2017, three six July 29, 2017 July 30, 2016, six July 29, 2017 July 30, 2016. three six July 29, 2017 not There have been no six July 29, 2017, 10 January 28, 2017. 1, 8 2017 Recently adopted accounting pronouncements In March 2016, Accounting Standards Update (“ASU”) No. 2016 09, 718 first 2018 $4.6 Stock-based compensation excess tax benefits or deficiencies are now reflected in the condensed consolidated statements of operations as a component of the provision for income taxes, whereas they previously were recognized in equity. The presentation requirements for cash flows related to employee taxes paid for withheld shares had no We have elected to account for forfeitures as they occur and therefore, stock-based compensation expense for the three six July 29, 2017 $0.1 January 29, 2017. In July 2015, No. 2015 11, We adopted this ASU in the first 2018 no Recently issued accounting pronouncements not Recent accounting pronouncements expected to impact our operations that are not In November 2016, No. 2016 18, 230 2016 18” not 2016 18 first 2019, The adoption of this ASU is not In October 2016, No. 2016 16, 740 2016 16” 2016 16 first 2019 In February 2016, No. 2016 02, 842 2016 02” 2016 02 2016 02 is effective for us beginning in the first 2020 . In May 2014, No. 2014 09, 606 2014 09” 2014 09 2014 09 first 2019 Subsequently, the FASB has issued the following standards related to ASU 2014 09: No. 2016 08, 606 2016 08” No. 2016 10, 606 2016 10” No. 2016 12, 606 2016 12” No. 2016 20, 606, 2016 20” 2016 08, 2016 10, 2016 12 2016 20 2014 09 606 February 4, 2018, not not 606 not

Note 2 - Cash, Cash Equivalents

Note 2 - Cash, Cash Equivalents and Marketable Securities	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Cash, Cash Equivalents, and Marketable Securities [Text Block]	2. As of both July 29, 2017 January 28, 2017, $0.3 not July 29 , 201 7 January 28, 2017 Book Value Net Unrealized Gains Fair Value Book Value Net Unrealized Losses Fair Value Money market funds $ 81 $ - $ 81 $ 3,715 $ - $ 3,715 Corporate bonds - - - 3,506 (1 ) 3,505 Fixed income mutual funds 1,282 2 1,284 1,280 (4 ) 1,276 Total cash equivalents and marketable securities $ 1,363 $ 2 $ 1,365 $ 8,501 $ (5 ) $ 8,496 Cash on hand held in the United States 3,756 9,378 Cash on hand held overseas 62,075 53,332 Total cash on hand 65,831 62,710 Total cash, cash equivalents and marketable securities $ 67,196 $ 71,206 Reported as: Cash and cash equivalents $ 65,912 $ 66,425 Short-term marketable securities 1,284 4,781 $ 67,196 $ 71,206 The amortized cost and estimated fair value of cash equivalents and marketable securities have a contractual maturity of one

Note 3 - Fair Values of Assets

Note 3 - Fair Values of Assets and Liabilities	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Fair Value Disclosures [Text Block]	3. Determination of fair value Our cash equivalents and marketable securities are classified within Level 1 The tables below present the balances of our assets and liabilities measured at fair value on a recurring basis as of July 29, 2017 January 28, 2017 ( July 29 , 201 7 Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Money market funds $ 81 $ 81 $ - $ - Fixed income mutual funds 1,284 1,284 - - Total cash equivalents and marketable securities 1,365 1,365 - - Restricted cash 323 323 - - Total assets measured at fair value $ 1,688 $ 1,688 $ - $ - January 28, 2017 Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Money market funds $ 3,715 $ 3,715 $ - $ - Corporate bonds 3,505 3,505 - - Fixed income mutual funds 1,276 1,276 - - Total cash equivalents and marketable securities 8,496 8,496 - - Restricted cash 303 303 - - Total assets measured at fair value $ 8,799 $ 8,799 $ - $ - Assets measured and recorded at fair value on a non-recurring basis Our non-marketable preferred stock investments in privately-held companies are recorded at cost and are adjusted to fair value only in the event that they become other-than-temporarily impaired. As of July 29, 2017, one $1.8 three July 29, 2017, $0.2 $0.1 not may three six July 29, 2017 July 30, 2016. 20% not

Note 4 - Supplemental Financial

Note 4 - Supplemental Financial Information	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Supplemental Balance Sheet Disclosures [Text Block]	4. Inventory consists of the following (in thousands): July 29, 2017 January 28, 2017 Wafers and other purchased materials $ 7,922 $ 8,595 Work-in-process 2,517 2,780 Finished goods 5,708 6,772 Total inventory $ 16,147 $ 18,147 Prepaid expenses and other current assets consist of the following (in thousands): July 29, 2017 January 28, 2017 Prepayments for taxes $ 3,539 $ 3,421 Prepayments for royalties 765 776 Non-operating receivable 490 955 Other current assets 2,696 2,865 Total prepaid expenses and other current assets $ 7,490 $ 8,017 Software, equipment and leasehold improvements, net consist of the following (in thousands, except for years): Estimated Useful Lives (Y ears) July 29, 2017 January 28, 2017 Software 3 - 5 $ 51,425 $ 49,915 Mask sets 3 22,302 18,209 Equipment 3 8,781 7,719 Office equipment and furniture 3 - 5 8,149 7,857 Leasehold improvements 1 - 5 2,161 2,108 Total 92,818 85,808 Less: Accumulated depreciation and amortization (72,673 ) (67,285 ) Total software, equipment and leasehold improvements, net $ 20,145 $ 18,523 The table above includes, as of July 29, 2017, $2.4 11. Software, equipment and leasehold improvement depreciation and amortization expense was $2.5 $2.7 three July 29, 2017 July 30, 2016, $5.2 $6.1 six July 29, 2017 July 30, 2016, Accrued liabilities consist of the following (in thousands): July 29, 2017 January 28, 2017 License fees $ 5,067 $ 5,578 Income taxes payable, current portion 998 2,094 Restructuring charges 1,597 - Rebates 1,576 1,585 Royalties 1,231 1,378 Warranty 696 783 Deferred revenue 466 350 Other accrued liabilities 3,322 1,839 Total accrued liabilities $ 14,953 $ 13,607 The following table summarizes activity related to accrued rebates (in thousands): Six months ended July 29, 2017 Beginning balance $ 1,585 Charged as a reduction of revenue 1,265 Payments (1,274 ) Ending balance $ 1,576

Note 5 - Intangible Assets

Note 5 - Intangible Assets	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Business Combination Disclosure [Text Block]	5. The tables below present the balances of our intangible assets (in thousands, except for years): July 29, 2017 Gross Value Impairment Accumulated Amortization and Effect of Currency Translation Net Value Weighted Average Remaining Amortization Period (Years) Acquired intangible assets: Developed technology $ 85,427 $ (24,614 ) $ (53,675 ) $ 7,138 7.2 Customer relationships 54,505 (30,486 ) (21,169 ) 2,850 5.3 Trademarks and other 4,078 - (3,918 ) 160 1.3 Purchased IP - amortizing 35,978 (5,516 ) (25,111 ) 5,351 2.0 Total amortizing 179,988 (60,616 ) (103,873 ) 15,499 5.0 Purchased IP - not yet deployed 19,146 (7,446 ) - 11,700 Total intangibles $ 199,134 $ (68,062 ) $ (103,873 ) $ 27,199 January 28, 2017 Gross Value Impairment Accumulated Amortization and Effect of Currency Translation Net Value Weighted Average Remaining Amortization Period (Years) Acquired intangible assets: Developed technology $ 85,427 $ (24,614 ) $ (52,854 ) $ 7,959 7.4 Customer relationships 54,505 (30,486 ) (20,897 ) 3,122 5.8 Trademarks and other 4,078 - (3,858 ) 220 1.9 Purchased IP - amortizing 36,007 (5,516 ) (23,057 ) 7,434 2.3 Total amortizing 180,017 (60,616 ) (100,666 ) 18,735 5.0 Purchased IP - not yet deployed 16,449 (4,440 ) - 12,009 Total intangibles $ 196,466 $ (65,056 ) $ (100,666 ) $ 30,744 Acquired intangible assets represent intangible assets acquired through business combinations. Purchased intellectual property (“IP”) represents intangible assets acquired through direct purchases of licensed technology from vendors which is incorporated into our products. Purchased IP not third July 29, 2017, not $1.0 11. As part of our restructuring plan as discussed in Note 7, not three six July 29, 2017 zero $3.0 The following table presents the amortization of intangible assets in the accompanying condensed consolidated statements of operations (in thousands): Three Months Ended Six Months Ended July 29 , 201 7 July 30 , 201 6 July 29 , 2 01 7 July 30 , 201 6 Cost of revenue $ 1,120 $ 1,975 $ 2,293 $ 4,028 Operating expenses 448 713 895 1,430 Total intangibles amortization expense $ 1,568 $ 2,688 $ 3,188 $ 5,458 As of July 29, 2017, Fiscal year Total 2018 (remaining six months) $ 2,484 2019 4,319 2020 2,833 2021 1,588 2022 1,243 Thereafter 3,032 Total $ 15,499

Note 6 - Commitments and Contin

Note 6 - Commitments and Contingencies	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	6. Commitments Purchase commitments We place non-cancelable orders to purchase semiconductor products from our suppliers on an eight twelve July 29, 2017, $14.3 Third-party licensed technology In October 2015, $6.1 December 2015 December 2018. July 29, 2017, $3.0 $2.2 July 29, 2017. 2019. July 29, 2017. Design Tools In June 2016, $7.8 August 2016 May 2019. As of July 29, 2017, $5.2 $1.5 July 29, 2017. made through fiscal 2021. July 29, 2017 . Royalties We pay royalties for the right to sell certain products under various license agreements. During the three six July 29, 2017, $0.8 $1.4 $1.6 $2.9 three six July 30, 2016, Our wholly-owned subsidiary, Sigma Designs Israel SDI Ltd. (formerly CopperGate Communications, Ltd.), participated in programs sponsored by the Office of the Chief Scientist of Israel's Ministry of Industry, Trade and Labor, or the OCS, for the support of research and development activities that we conducted in Israel. Through July 29, 2017, $5.2 2013. 4.5% July 29, 2017, $1.2 Contingencies Product warranty In general, we sell products with a one Details of the change in accrued warranty as of July 29, 2017 July 30, 2016 Three Months Ended Balance Beginning of Period Additions and Adjustments Deductions Balance End of Period July 29, 2017 $ 727 $ 112 $ (143 ) $ 696 July 30, 2016 $ 960 $ 143 $ (151 ) $ 952 Six Months Ended Balance Beginning of Period Additions and Adjustments Deductions Balance End of Period July 29, 2017 $ 783 $ 196 $ (283 ) $ 696 July 30, 2016 $ 959 $ 282 $ (289 ) $ 952 Litigation From time to time, we are involved in claims and legal proceedings that arise in the ordinary course of business. We expect that the number and significance of these matters will increase as our business expands. In particular, we could face an increasing number of patent and other intellectual property claims as the number of products and competitors in our industry grows. Any claims or proceedings against us, whether meritorious or not, may not Advanced Micro Device, Inc. Litigation: January 23, 2017, 7,633,506 7,796,133. January 24, 2017, 7,633,506 7,796,133. Broadcom Corporation Litigation: March 7, 2017, No. 7,310,104. March 8, 2017, No. 7,310,104 8,284,844 7,590,059. A dvanced Silicon Technologies S.a.r.l. Litigation: June 21, 2017, No. 1424653. Indemnifications In certain limited circumstances, we have agreed and may third not not . Our articles of incorporation and bylaws require that we indemnify our officers and directors against expenses, judgments, fines, settlements and other amounts actually and reasonably incurred in connection with any proceedings arising out of their services to us. In addition, we have entered into separate indemnification agreements with each of our directors and executive officers, which provide for indemnification of these individuals under similar circumstances and under additional circumstances. The indemnification obligations are more fully described in our charter documents and the form of indemnification agreement filed with our SEC reports. We purchase insurance to cover claims or a portion of the claims made against our directors and officers. Since a maximum obligation is not Third-party licensed technology We regularly license technology from various third may February 10, 2017, one May 15, 2017, We may

Note 7 - Restructuring Charges

Note 7 - Restructuring Charges	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	7. On March 24, 2017, 2018 2018 2018. During the three six July 29, 2017, A summary of the recent activities of our restructuring plan is as follows (in thousands): Severance Charges for the three months ended April 29, 2017 $ 243 Cash payments (5 ) Accrued balance as of April 29, 2017 238 Charges for the three months ended July 29, 2017 1,723 Cash payments (364 ) Accrued balance as of July 29, 2017 $ 1,597 Total cost incurred to date as of July 29, 2017 $ 1,966 In addition, we recorded an impairment charge for purchased IP not zero $3.0 three six July 29, 2017, no Our restructuring measures could negatively impact our revenue and results of operations in the future as a result of less employees developing future products and working to sell our products.

Note 8 - Earnings Per Share

Note 8 - Earnings Per Share	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Earnings Per Share [Text Block]	8. Earnings per share Basic net loss per share is computed by dividing net loss by the weighted-average number of common shares outstanding for the fiscal period. The weighted-average number of shares outstanding used in the computation of basic and diluted loss per share does not not Three Months Ended Six Months Ended July 29 , 201 7 July 30, 2016 July 29 , 2017 July 30, 2016 Stock options 2,387 2,477 2,409 2,465 Restricted stock units and awards 464 422 406 564

Note 9 - Employee Benefits

Note 9 - Employee Benefits	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	9. 401 We maintain a 401 401 may $18,000 2017. 50 may $6,000. 401 three six July 29, 2017 $0.2 $0.4 $0.1 $0.3 three six July 30, 2016, Endowment insurance pension plan Related to our acquisition of our DTV business in May 2012, 8.0% 20% April 2016 March 2017, 17,817 April 2017 March 2018, 19,512 . For the three six July 29, 2017, $0.5 $1.1 $0.6 $1.2 three six July 30, 2016, Retirement pension plans We maintain retirement pension plans for the benefit of qualified employees in Denmark, Taiwan, The Netherlands, and Germany. We made matching contributions under these plans of $0.2 three July 29, 2017 July 30, 2016; $0.4 six July 29, 2017 July 30, 2016. Severance plan We maintain a severance plan for several Israeli employees pursuant to Israel's Severance Pay Law based on the most recent salary of the employees multiplied by the number of years of employment. Upon termination of employment, employees are entitled to one July 29, 2017, $0.9 $0.8 $0.1 three six July 29, 2017 July 30, 2016 . Employee termination benefits Termination benefits are payable when an employee is involuntarily terminated, or whenever an employee accepts voluntary termination in exchange for termination benefits. For the accounting treatment and timing recognition of involuntarily termination benefits, the Company distinguishes between one one one one not not As discussed in Note 7, $1.7 $1.9 three six July 29, 2017, Employee s tock p urchase p lan During the first 2016, 2015 2010 “2010 may 2010 may As of July 29, 2017, 38,374 2010 may $3.89 not may not On August 22, 2016, 2010 March 2017,

Note 10 - Income Taxes

Note 10 - Income Taxes	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Income Tax Disclosure [Text Block]	1 0 . Income taxes We recorded a provision for income taxes of $1.0 $1.8 three July 29, 2017 July 30, 2016, $2.0 $3.1 six July 29, 2017 July 30, 2016, three six July 29, 2017 2017 three six July 29, 2017 July 30, 2016, .

Note 11 - Collaborative Arrange

Note 11 - Collaborative Arrangement	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Collaborative Arrangement Disclosure [Text Block]	11. In September 2016, 50% third July 31, 2018 may Net profit from this collaborative arrangement, included in net revenue, was less than $0.1 three six July 29, 2017. $0.2 $0.7 three six July 29, 2017, As discussed in Note 13, August 14, 2017, may $0.9 third 2018.

Note 12 - Segment and Geographi

Note 12 - Segment and Geographical Information	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	12. Operating segments are defined as components of an enterprise for which separate financial information is available and evaluated regularly by the chief operating decision-maker in deciding how to allocate resources and in assessing performance. We are organized as, and operate in, one not Our net revenue is derived principally from the sales of integrated SoC solutions, which we sell across both of our target markets. Connected Smart TV Platforms consist of all products that are sold into digital televisions as well as other adjacent markets using chipset products that are designed for video post-processing, products delivering IP streaming video, including hybrid versions of these products, and communication devices that use a standard protocol to connect equipment inside the home and stream IP-based video and audio, VoIP, or data through wired or wireless connectivity. IoT Devices consist of both smart home applications (including gateways and automated consumer devices) and mobile IoT applications (primarily tracking tags). Our smart home product line is marketed under our Z-Wave brand of wireless chips, modules and Z-Wave mesh networking protocol . Our License and other markets include revenue derived from the licensing of our technology to third that revenue is not zero for the three six July 29, 2017, 0.2% 0.3% for the three six July 30, 2016. The following table sets forth net revenue attributable to each target market (in thousands): Three Months Ended Six Months Ended July 29 , 201 7 July 30 , 201 6 July 29 , 201 7 July 30 , 201 6 Connected Smart TV Platforms $ 26,111 $ 51,678 $ 54,001 $ 95,386 IoT Devices 13,397 9,488 25,071 19,405 License and other - 150 - 300 Net revenue $ 39,508 $ 61,316 $ 79,072 $ 115,091 The following table sets forth net revenue for each geographic region based on the ship-to location of customers (in thousands): Three Months Ended Six Months Ended July 29 , 201 7 July 30 , 201 6 July 29 , 201 7 July 30 , 201 6 Asia $ 34,573 $ 47,873 $ 66,495 $ 93,914 North America 2,527 11,391 8,346 18,006 Europe 2,408 2,038 4,231 3,157 Other Regions - 14 - 14 Net revenue $ 39,508 $ 61,316 $ 79,072 $ 115,091 The following table sets forth net revenue for each significant country based on the ship-to location of customers (in thousands): Three Months Ended Six Months Ended July 29 , 201 7 July 30 , 201 6 July 29 , 201 7 July 30 , 201 6 China, including Hong Kong $ 18,665 $ 33,110 $ 40,455 $ 60,567 Taiwan 11,806 9,991 18,757 23,955 United States 2,132 11,269 7,652 17,858 Republic of Korea 2,112 1,606 3,787 3,117 Thailand 998 2,916 1,852 5,737 Rest of the world 3,795 2,424 6,569 3,857 Net revenue $ 39,508 $ 61,316 $ 79,072 $ 115,091 During the three July 29, 2017, 27%, 14% 11% six July 29, 2017, 21%, 15% 15% three July 30, 2016, 18%, 18%, 15% 13% six July 30, 2016, 17% 15%

Note 13 - Subsequent Events

Note 13 - Subsequent Events	6 Months Ended
	Jul. 29, 2017
Notes to Financial Statements
Subsequent Events [Text Block]	13 . Subsequent event s On August 14, 2017, $4.7 $2.5 $0.6 30 may $0.9 third 2018.

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jul. 29, 2017
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation: 13 second 2018 2017 July 29, 2017 ( 91 July 30, 2016 ( 91 The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”). They do not January 28, 2017, 2017 10 March 30, 2017, 2017 The condensed consolidated financial statements included herein are unaudited; however, they contain all normal recurring accruals and adjustments that, in our opinion, are necessary to present fairly our consolidated financial position at July 29, 2017 January 28, 2017, three six July 29, 2017 July 30, 2016, six July 29, 2017 July 30, 2016. three six July 29, 2017 not There have been no six July 29, 2017, 10 January 28, 2017. 1, 8 2017
New Accounting Pronouncements, Policy [Policy Text Block]	Recently adopted accounting pronouncements In March 2016, Accounting Standards Update (“ASU”) No. 2016 09, 718 first 2018 $4.6 Stock-based compensation excess tax benefits or deficiencies are now reflected in the condensed consolidated statements of operations as a component of the provision for income taxes, whereas they previously were recognized in equity. The presentation requirements for cash flows related to employee taxes paid for withheld shares had no We have elected to account for forfeitures as they occur and therefore, stock-based compensation expense for the three six July 29, 2017 $0.1 January 29, 2017. In July 2015, No. 2015 11, We adopted this ASU in the first 2018 no Recently issued accounting pronouncements not Recent accounting pronouncements expected to impact our operations that are not In November 2016, No. 2016 18, 230 2016 18” not 2016 18 first 2019, The adoption of this ASU is not In October 2016, No. 2016 16, 740 2016 16” 2016 16 first 2019 In February 2016, No. 2016 02, 842 2016 02” 2016 02 2016 02 is effective for us beginning in the first 2020 . In May 2014, No. 2014 09, 606 2014 09” 2014 09 2014 09 first 2019 Subsequently, the FASB has issued the following standards related to ASU 2014 09: No. 2016 08, 606 2016 08” No. 2016 10, 606 2016 10” No. 2016 12, 606 2016 12” No. 2016 20, 606, 2016 20” 2016 08, 2016 10, 2016 12 2016 20 2014 09 606 February 4, 2018, not not 606 not

Note 2 - Cash, Cash Equivalen21

Note 2 - Cash, Cash Equivalents and Marketable Securities (Tables)	6 Months Ended
	Jul. 29, 2017
Notes Tables
Cash, Cash Equivalents and Investments [Table Text Block]	July 29 , 201 7 January 28, 2017 Book Value Net Unrealized Gains Fair Value Book Value Net Unrealized Losses Fair Value Money market funds $ 81 $ - $ 81 $ 3,715 $ - $ 3,715 Corporate bonds - - - 3,506 (1 ) 3,505 Fixed income mutual funds 1,282 2 1,284 1,280 (4 ) 1,276 Total cash equivalents and marketable securities $ 1,363 $ 2 $ 1,365 $ 8,501 $ (5 ) $ 8,496 Cash on hand held in the United States 3,756 9,378 Cash on hand held overseas 62,075 53,332 Total cash on hand 65,831 62,710 Total cash, cash equivalents and marketable securities $ 67,196 $ 71,206 Reported as: Cash and cash equivalents $ 65,912 $ 66,425 Short-term marketable securities 1,284 4,781 $ 67,196 $ 71,206

Note 3 - Fair Values of Asset22

Note 3 - Fair Values of Assets and Liabilities (Tables)	6 Months Ended
	Jul. 29, 2017
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	July 29 , 201 7 Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Money market funds $ 81 $ 81 $ - $ - Fixed income mutual funds 1,284 1,284 - - Total cash equivalents and marketable securities 1,365 1,365 - - Restricted cash 323 323 - - Total assets measured at fair value $ 1,688 $ 1,688 $ - $ - January 28, 2017 Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Money market funds $ 3,715 $ 3,715 $ - $ - Corporate bonds 3,505 3,505 - - Fixed income mutual funds 1,276 1,276 - - Total cash equivalents and marketable securities 8,496 8,496 - - Restricted cash 303 303 - - Total assets measured at fair value $ 8,799 $ 8,799 $ - $ -

Note 4 - Supplemental Financi23

Note 4 - Supplemental Financial Information (Tables)	6 Months Ended
	Jul. 29, 2017
Notes Tables
Schedule of Inventory, Current [Table Text Block]	July 29, 2017 January 28, 2017 Wafers and other purchased materials $ 7,922 $ 8,595 Work-in-process 2,517 2,780 Finished goods 5,708 6,772 Total inventory $ 16,147 $ 18,147
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]	July 29, 2017 January 28, 2017 Prepayments for taxes $ 3,539 $ 3,421 Prepayments for royalties 765 776 Non-operating receivable 490 955 Other current assets 2,696 2,865 Total prepaid expenses and other current assets $ 7,490 $ 8,017
Property, Plant and Equipment [Table Text Block]	Estimated Useful Lives (Y ears) July 29, 2017 January 28, 2017 Software 3 - 5 $ 51,425 $ 49,915 Mask sets 3 22,302 18,209 Equipment 3 8,781 7,719 Office equipment and furniture 3 - 5 8,149 7,857 Leasehold improvements 1 - 5 2,161 2,108 Total 92,818 85,808 Less: Accumulated depreciation and amortization (72,673 ) (67,285 ) Total software, equipment and leasehold improvements, net $ 20,145 $ 18,523
Schedule of Accrued Liabilities [Table Text Block]	July 29, 2017 January 28, 2017 License fees $ 5,067 $ 5,578 Income taxes payable, current portion 998 2,094 Restructuring charges 1,597 - Rebates 1,576 1,585 Royalties 1,231 1,378 Warranty 696 783 Deferred revenue 466 350 Other accrued liabilities 3,322 1,839 Total accrued liabilities $ 14,953 $ 13,607
Other Current Liabilities [Table Text Block]	Six months ended July 29, 2017 Beginning balance $ 1,585 Charged as a reduction of revenue 1,265 Payments (1,274 ) Ending balance $ 1,576

Note 5 - Intangible Assets (Tab

Note 5 - Intangible Assets (Tables)	6 Months Ended
	Jul. 29, 2017
Notes Tables
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]	July 29, 2017 Gross Value Impairment Accumulated Amortization and Effect of Currency Translation Net Value Weighted Average Remaining Amortization Period (Years) Acquired intangible assets: Developed technology $ 85,427 $ (24,614 ) $ (53,675 ) $ 7,138 7.2 Customer relationships 54,505 (30,486 ) (21,169 ) 2,850 5.3 Trademarks and other 4,078 - (3,918 ) 160 1.3 Purchased IP - amortizing 35,978 (5,516 ) (25,111 ) 5,351 2.0 Total amortizing 179,988 (60,616 ) (103,873 ) 15,499 5.0 Purchased IP - not yet deployed 19,146 (7,446 ) - 11,700 Total intangibles $ 199,134 $ (68,062 ) $ (103,873 ) $ 27,199 January 28, 2017 Gross Value Impairment Accumulated Amortization and Effect of Currency Translation Net Value Weighted Average Remaining Amortization Period (Years) Acquired intangible assets: Developed technology $ 85,427 $ (24,614 ) $ (52,854 ) $ 7,959 7.4 Customer relationships 54,505 (30,486 ) (20,897 ) 3,122 5.8 Trademarks and other 4,078 - (3,858 ) 220 1.9 Purchased IP - amortizing 36,007 (5,516 ) (23,057 ) 7,434 2.3 Total amortizing 180,017 (60,616 ) (100,666 ) 18,735 5.0 Purchased IP - not yet deployed 16,449 (4,440 ) - 12,009 Total intangibles $ 196,466 $ (65,056 ) $ (100,666 ) $ 30,744
Amortization of Intangible Assets [Table Text Block]	Three Months Ended Six Months Ended July 29 , 201 7 July 30 , 201 6 July 29 , 2 01 7 July 30 , 201 6 Cost of revenue $ 1,120 $ 1,975 $ 2,293 $ 4,028 Operating expenses 448 713 895 1,430 Total intangibles amortization expense $ 1,568 $ 2,688 $ 3,188 $ 5,458
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Fiscal year Total 2018 (remaining six months) $ 2,484 2019 4,319 2020 2,833 2021 1,588 2022 1,243 Thereafter 3,032 Total $ 15,499

Note 6 - Commitments and Cont25

Note 6 - Commitments and Contingencies (Tables)	6 Months Ended
	Jul. 29, 2017
Notes Tables
Schedule of Product Warranty Liability [Table Text Block]	Three Months Ended Balance Beginning of Period Additions and Adjustments Deductions Balance End of Period July 29, 2017 $ 727 $ 112 $ (143 ) $ 696 July 30, 2016 $ 960 $ 143 $ (151 ) $ 952 Six Months Ended Balance Beginning of Period Additions and Adjustments Deductions Balance End of Period July 29, 2017 $ 783 $ 196 $ (283 ) $ 696 July 30, 2016 $ 959 $ 282 $ (289 ) $ 952

Note 7 - Restructuring Charges

Note 7 - Restructuring Charges (Tables)	6 Months Ended
	Jul. 29, 2017
Notes Tables
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	Severance Charges for the three months ended April 29, 2017 $ 243 Cash payments (5 ) Accrued balance as of April 29, 2017 238 Charges for the three months ended July 29, 2017 1,723 Cash payments (364 ) Accrued balance as of July 29, 2017 $ 1,597 Total cost incurred to date as of July 29, 2017 $ 1,966

Note 8 - Earnings Per Share (Ta

Note 8 - Earnings Per Share (Tables)	6 Months Ended
	Jul. 29, 2017
Notes Tables
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	Three Months Ended Six Months Ended July 29 , 201 7 July 30, 2016 July 29 , 2017 July 30, 2016 Stock options 2,387 2,477 2,409 2,465 Restricted stock units and awards 464 422 406 564

Note 12 - Segment and Geograp28

Note 12 - Segment and Geographical Information (Tables)	6 Months Ended
	Jul. 29, 2017
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three Months Ended Six Months Ended July 29 , 201 7 July 30 , 201 6 July 29 , 201 7 July 30 , 201 6 Connected Smart TV Platforms $ 26,111 $ 51,678 $ 54,001 $ 95,386 IoT Devices 13,397 9,488 25,071 19,405 License and other - 150 - 300 Net revenue $ 39,508 $ 61,316 $ 79,072 $ 115,091
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	Three Months Ended Six Months Ended July 29 , 201 7 July 30 , 201 6 July 29 , 201 7 July 30 , 201 6 Asia $ 34,573 $ 47,873 $ 66,495 $ 93,914 North America 2,527 11,391 8,346 18,006 Europe 2,408 2,038 4,231 3,157 Other Regions - 14 - 14 Net revenue $ 39,508 $ 61,316 $ 79,072 $ 115,091
Geographic Concentration Risk [Member]
Notes Tables
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	Three Months Ended Six Months Ended July 29 , 201 7 July 30 , 201 6 July 29 , 201 7 July 30 , 201 6 China, including Hong Kong $ 18,665 $ 33,110 $ 40,455 $ 60,567 Taiwan 11,806 9,991 18,757 23,955 United States 2,132 11,269 7,652 17,858 Republic of Korea 2,112 1,606 3,787 3,117 Thailand 998 2,916 1,852 5,737 Rest of the world 3,795 2,424 6,569 3,857 Net revenue $ 39,508 $ 61,316 $ 79,072 $ 115,091

Note 1 - Organization and Sum29

Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) - Accounting Standards Update 2016-09 [Member] $ in Millions	Apr. 29, 2017USD ($)
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 4.6
Additional Paid-in Capital [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 0.1

Note 2 - Cash, Cash Equivalen30

Note 2 - Cash, Cash Equivalents and Marketable Securities (Details Textual) - USD ($) $ in Millions	Jul. 29, 2017	Jan. 28, 2017
Restricted Cash and Cash Equivalents	$ 0.3	$ 0.3

Note 2 - Cash, Cash Equivalen31

Note 2 - Cash, Cash Equivalents and Marketable Securities - Schedule of Cash, Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 29, 2017	Jan. 28, 2017	Jul. 30, 2016	Jan. 30, 2016
Book Value	$ 1,363	$ 8,501
Net Unrealized Gains (Losses)	2	(5)
Fair Value	1,365	8,496
Fair value - cash on hand	65,831	62,710
Cash and cash equivalents	65,912	66,425	$ 68,353	$ 63,790
Short-term marketable securities	1,284	4,781
Total cash, cash equivalents and marketable securities	67,196	71,206
UNITED STATES
Fair value - cash on hand	3,756	9,378
Overseas [Member]
Fair value - cash on hand	62,075	53,332
Money Market Funds [Member]
Book Value	81	3,715
Net Unrealized Gains (Losses)
Fair Value	81	3,715
Corporate Bond Securities [Member]
Book Value		3,506
Net Unrealized Gains (Losses)		(1)
Fair Value		3,505
Fixed Income Funds [Member]
Book Value	1,282	1,280
Net Unrealized Gains (Losses)	2	(4)
Fair Value	$ 1,284	$ 1,276

Note 3 - Fair Values of Asset32

Note 3 - Fair Values of Assets and Liabilities (Details Textual) - Preferred Stock Investments in Privately Held Company [Member] $ in Millions	3 Months Ended
	Jul. 29, 2017USD ($)
Investment Owned, at Cost	$ 1.8
Proceeds from Sale of Other Investments	0.2
Cost-method Investments, Realized Gain (Loss), Excluding Other than Temporary Impairments	$ 0.1

Note 3 - Fair Values of Asset33

Note 3 - Fair Values of Assets and Liabilities - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Jul. 29, 2017	Jan. 28, 2017
Total assets measured at fair value	$ 1,688	$ 8,799
Cash equivalents and short-term investments	1,365	8,496
Restricted cash	323	303
Fair Value, Inputs, Level 1 [Member]
Total assets measured at fair value	1,688	8,799
Cash equivalents and short-term investments	1,365	8,496
Restricted cash	323	303
Money Market Funds [Member]
Cash equivalents and short-term investments	81	3,715
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Cash equivalents and short-term investments	81	3,715
Fixed Income Investments [Member]
Cash equivalents and short-term investments	1,284	1,276
Fixed Income Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Cash equivalents and short-term investments	$ 1,284	1,276
Corporate Bond Securities [Member]
Cash equivalents and short-term investments		3,505
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Cash equivalents and short-term investments		$ 3,505

Note 4 - Supplemental Financi34

Note 4 - Supplemental Financial Information (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016	Jan. 28, 2017
Property, Plant and Equipment, Net	$ 20,145		$ 20,145		$ 18,523
Depreciation, Depletion and Amortization, Nonproduction	2,500	$ 2,700	5,200	$ 6,100
Collaborative Arrangement, Product [Member] | Telechips Inc [Member] | Mask Sets [Member]
Property, Plant and Equipment, Net	$ 2,400		$ 2,400

Note 4 - Supplemental Financi35

Note 4 - Supplemental Financial Information - Inventory (Details) - USD ($) $ in Thousands	Jul. 29, 2017	Jan. 28, 2017
Wafers and other purchased materials	$ 7,922	$ 8,595
Work-in-process	2,517	2,780
Finished goods	5,708	6,772
Total inventory	$ 16,147	$ 18,147

Note 4 - Supplemental Financi36

Note 4 - Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Jul. 29, 2017	Jan. 28, 2017
Prepayments for taxes	$ 3,539	$ 3,421
Prepayments for royalties	765	776
Non-operating receivable	490	955
Other current assets	2,696	2,865
Total prepaid expenses and other current assets	$ 7,490	$ 8,017

Note 4 - Supplemental Financi37

Note 4 - Supplemental Financial Information - Software, Equipment and Leasehold Improvements (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 29, 2017	Jan. 28, 2017
Property, plant, and equipment, gross	$ 92,818	$ 85,808
Less: Accumulated depreciation and amortization	(72,673)	(67,285)
Total software, equipment and leasehold improvements, net	20,145	18,523
Software and Software Development Costs [Member]
Property, plant, and equipment, gross	$ 51,425	49,915
Software and Software Development Costs [Member] | Minimum [Member]
Estimated Useful Lives (Year)	3 years
Software and Software Development Costs [Member] | Maximum [Member]
Estimated Useful Lives (Year)	5 years
Mask Sets [Member]
Property, plant, and equipment, gross	$ 22,302	18,209
Estimated Useful Lives (Year)	3 years
Equipment [Member]
Property, plant, and equipment, gross	$ 8,781	7,719
Estimated Useful Lives (Year)	3 years
Office Equipment [Member]
Property, plant, and equipment, gross	$ 8,149	7,857
Office Equipment [Member] | Minimum [Member]
Estimated Useful Lives (Year)	3 years
Office Equipment [Member] | Maximum [Member]
Estimated Useful Lives (Year)	5 years
Leasehold Improvements [Member]
Property, plant, and equipment, gross	$ 2,161	$ 2,108
Leasehold Improvements [Member] | Minimum [Member]
Estimated Useful Lives (Year)	1 year
Leasehold Improvements [Member] | Maximum [Member]
Estimated Useful Lives (Year)	5 years

Note 4 - Supplemental Financi38

Note 4 - Supplemental Financial Information - Accrued Liabilities (Details) - USD ($) $ in Thousands	Jul. 29, 2017	Apr. 29, 2017	Jan. 28, 2017	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016
License fees	$ 5,067		$ 5,578
Income taxes payable, current portion	998		2,094
Restructuring charges	1,597
Rebates	1,576		1,585
Royalties	1,231		1,378
Warranty	696	$ 727	783	$ 952	$ 960	$ 959
Deferred revenue	466		350
Other accrued liabilities	3,322		1,839
Total accrued liabilities	$ 14,953		$ 13,607

Note 4 - Supplemental Financi39

Note 4 - Supplemental Financial Information - Other Long-term Liabilities (Details) $ in Thousands	6 Months Ended
	Jul. 29, 2017USD ($)
Beginning balance	$ 1,585
Charged as a reduction of revenue	1,265
Payments	(1,274)
Ending balance	$ 1,576

Note 5 - Intangible Assets (Det

Note 5 - Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 29, 2017	Jul. 29, 2017	Jan. 28, 2017
Finite-Lived Intangible Assets, Net	$ 27,199	$ 27,199	$ 30,744
Purchased Intellectual Property - Not Yet Deployed [Member]
Finite-Lived Intangible Assets, Net	11,700	11,700	$ 12,009
Purchased Intellectual Property - Not Yet Deployed [Member] | Fiscal 2018 Plan [Member]
Impairment of Intangible Assets, Finite-lived	0	3,000
Purchased Intellectual Property - Not Yet Deployed [Member] | Collaborative Arrangement, Product [Member] | Telechips Inc [Member]
Finite-Lived Intangible Assets, Net	$ 1,000	$ 1,000

Note 5 - Intangible Assets - Ac

Note 5 - Intangible Assets - Acquired Intangible Assets, Subject to Amortization (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 29, 2017	Jan. 28, 2017
Gross value	$ 199,134	$ 196,466
Impairment	(68,062)	(65,056)
Accumulated amortization and effect of currency translation	(103,873)	(100,666)
Finite-Lived Intangible Assets, Net	$ 27,199	$ 30,744
Developed Technology Rights [Member]
Weighted average remaining amortization period (Year)	7 years 73 days	7 years 146 days
Gross value	$ 85,427	$ 85,427
Impairment	(24,614)	(24,614)
Accumulated amortization and effect of currency translation	(53,675)	(52,854)
Finite-Lived Intangible Assets, Net	$ 7,138	$ 7,959
Customer Relationships [Member]
Weighted average remaining amortization period (Year)	5 years 109 days	5 years 292 days
Gross value	$ 54,505	$ 54,505
Impairment	(30,486)	(30,486)
Accumulated amortization and effect of currency translation	(21,169)	(20,897)
Finite-Lived Intangible Assets, Net	$ 2,850	$ 3,122
Trademarks and Other [Member]
Weighted average remaining amortization period (Year)	1 year 109 days	1 year 328 days
Gross value	$ 4,078	$ 4,078
Impairment
Accumulated amortization and effect of currency translation	(3,918)	(3,858)
Finite-Lived Intangible Assets, Net	$ 160	$ 220
Purchased IP-Amortizing [Member]
Weighted average remaining amortization period (Year)	2 years	2 years 109 days
Gross value	$ 35,978	$ 36,007
Impairment	(5,516)	(5,516)
Accumulated amortization and effect of currency translation	(25,111)	(23,057)
Finite-Lived Intangible Assets, Net	$ 5,351	$ 7,434
Acquired Intangible Assets Subtotal [Member]
Weighted average remaining amortization period (Year)	5 years	5 years
Gross value	$ 179,988	$ 180,017
Impairment	(60,616)	(60,616)
Accumulated amortization and effect of currency translation	(103,873)	(100,666)
Finite-Lived Intangible Assets, Net	15,499	18,735
Purchased Intellectual Property - Not Yet Deployed [Member]
Gross value	19,146	16,449
Impairment	(7,446)	(4,440)
Accumulated amortization and effect of currency translation
Finite-Lived Intangible Assets, Net	$ 11,700	$ 12,009

Note 5 - Intangible Assets - Am

Note 5 - Intangible Assets - Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Intangible asset amortization expense	$ 1,568	$ 2,688	$ 3,188	$ 5,458
Cost of Sales [Member]
Intangible asset amortization expense	1,120	1,975	2,293	4,028
Operating Expense [Member]
Intangible asset amortization expense	$ 448	$ 713	$ 895	$ 1,430

Note 5 - Intangible Assets - Fu

Note 5 - Intangible Assets - Future Amortization Expense of Intangible Assets (Details) - Purchased IP-Amortizing [Member] $ in Thousands	Jul. 29, 2017USD ($)
2018 (remaining six months)	$ 2,484
2,019	4,319
2,020	2,833
2,021	1,588
2,022	1,243
Thereafter	3,032
Total	$ 15,499

Note 6 - Commitments and Cont44

Note 6 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2016	Oct. 31, 2015	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Purchase Commitment, Remaining Minimum Amount Committed			$ 14.3		$ 14.3
Percentage of Royalties			4.50%		4.50%
Accrued Royalties			$ 1.2		$ 1.2
Product Warranty, Term					1 year
Research and Development [Member]
Proceeds from Grantors					$ 5.2
Cost of Sales [Member]
Direct Operating Cost, Royalty Expense			0.8	$ 1.6	1.4	$ 2.9
Licensed Technology from Supplier One [Member]
Long-term Purchase Commitment, Amount		$ 6.1
Remaining Long Term Purchase Commitment Amount			3		3
Licensed Technology from Supplier Two [Member]
Remaining Long Term Purchase Commitment Amount			2.2		2.2
Design Tool Licenses from Supplier One [Member]
Long-term Purchase Commitment, Amount	$ 7.8
Remaining Long Term Purchase Commitment Amount			5.2		5.2
Design Tool Licenses from Supplier Two [Member]
Remaining Long Term Purchase Commitment Amount			$ 1.5		$ 1.5

Note 6 - Commitments and Cont45

Note 6 - Commitments and Contingencies - Change in Accrued Warranty (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Balance, end of period	$ 696	$ 952	$ 696	$ 952
Balance, beginning of period	727	960	783	959
Additions and adjustments	112	143	196	282
Deductions	$ (143)	$ (151)	$ (283)	$ (289)

Note 7 - Restructuring Charge46

Note 7 - Restructuring Charges (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 29, 2017	Jul. 29, 2017
Purchased Intellectual Property - Not Yet Deployed [Member] | Fiscal 2018 Plan [Member]
Impairment of Intangible Assets, Finite-lived	$ 0	$ 3,000

Note 7 - Restructuring Charge47

Note 7 - Restructuring Charges - Summary of Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 29, 2017	Apr. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016	Jan. 28, 2017
Restructuring Charges	$ 1,723			$ 1,966
Accrued balance	1,597			1,597
Fiscal 2018 Plan [Member]
Restructuring Charges	1,723	$ 243
Cash payments	(364)	(5)
Accrued balance	1,597	$ 238		1,597
Total cost incurred to date as of July 29, 2017	$ 1,966			$ 1,966

Note 8 - Earnings Per Share - E

Note 8 - Earnings Per Share - Excluded Anti-diluted and Excluded Potentially Dilutive Securities (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Employee Stock Option [Member]
Anti-dilutive securities (in shares)	2,387	2,477	2,409	2,465
Restricted Stock Units (RSUs) [Member]
Anti-dilutive securities (in shares)	464	422	406	564

Note 9 - Employee Benefits (Det

Note 9 - Employee Benefits (Details Textual)	3 Months Ended			6 Months Ended			12 Months Ended
	Jul. 29, 2017USD ($)$ / sharesshares	Apr. 29, 2017USD ($)	Jul. 30, 2016USD ($)	Jul. 29, 2017USD ($)$ / sharesshares	Jul. 30, 2016USD ($)	Jul. 30, 2016USD ($)	Mar. 31, 2018CNY (¥)	Mar. 31, 2017CNY (¥)
Restructuring Charges	$ 1,723,000			$ 1,966,000
Purchase Plan 2010 [Member]
Share Issued Under Employee Stock Purchase Plan, Subject to Rescission Rights | shares	38,374			38,374
Share Price | $ / shares	$ 3.89			$ 3.89
Fiscal 2018 Plan [Member]
Restructuring Charges	$ 1,723,000	$ 243,000
Fiscal 2018 Plan [Member] | One-time Termination Benefits [Member]
Restructuring Charges	1,700,000			$ 1,900,000
Severance Plan [Member]
Supplemental Unemployment Benefits, Severance Benefits	900,000			900,000
Severance Employee Funds	800,000			800,000
Defined Contribution Plan, Employer Contribution Related to Severances, Amount	100,000		100,000	100,000		100,000
Domestic Plan [Member] | Endowment Insurance Pension Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	500,000		600,000	$ 1,100,000		1,200,000
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent				8.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay				20.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount | ¥								¥ 17,817
Domestic Plan [Member] | Endowment Insurance Pension Plan [Member] | Scenario, Forecast [Member]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount | ¥							¥ 19,512
Denmark, Taiwan, The Netherlands and Germany [Member] | Retirement Pension Plan [Member]
Defined Contribution Plan, Cost	200,000
Defined Contribution Plan, Employer Discretionary Contribution Amount			200,000	$ 400,000	$ 400,000
Pension Plan [Member] | Domestic Plan [Member]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Additional Amount for Employees Over Age 50				6,000
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 200,000		$ 100,000	400,000		$ 300,000
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount				$ 18,000

Note 10 - Income Taxes (Details

Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Income Tax Expense (Benefit)	$ 965	$ 1,824	$ 1,982	$ 3,156

Note 11 - Collaborative Arran51

Note 11 - Collaborative Arrangement (Details Textual) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Oct. 28, 2017	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Research and Development Expense		$ 17,993	$ 18,836	$ 36,162	$ 37,991
Collaborative Arrangement, Product [Member] | Telechips Inc [Member]
Collaborative Arrangement, Percentage of Net Profit Receivable as Marketing Service Fee				50.00%
Net Profit (Loss) from Collaborative Arrangement		100		$ 100
Research and Development Expense		$ 200		$ 700
Collaborative Arrangement, Product [Member] | Telechips Inc [Member] | Scenario, Forecast [Member]
Collaborative Arrangement, Reversal of Research and Development expense and Share of Net Loss Upon Termination	$ 900

Note 12 - Segment and Geograp52

Note 12 - Segment and Geographical Information (Details Textual)	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Number of Reportable Segments			1
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Sunjet Components Corporation [Member]
Concentration Risk, Percentage	27.00%	13.00%	21.00%	17.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Silicon Application [Member]
Concentration Risk, Percentage	14.00%	18.00%	15.00%	15.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Arris Global [Member]
Concentration Risk, Percentage	11.00%	18.00%	15.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Arrow Electronics [Member]
Concentration Risk, Percentage		15.00%
License and Other [Member]
Percentage of Revenue During Period		0.20%		0.30%

Note 12 - Segment and Geograp53

Note 12 - Segment and Geographical Information - Net Revenue and Gross Profit by Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Sales revenue, net	$ 39,508	$ 61,316	$ 79,072	$ 115,091
Connected Smart TV Platforms [Member]
Sales revenue, net	26,111	51,678	54,001	95,386
IoT Devices [Member]
Sales revenue, net	13,397	9,488	25,071	19,405
License and Other [Member]
Sales revenue, net		$ 150		$ 300

Note 12 - Segment and Geograp54

Note 12 - Segment and Geographical Information - Net Revenue Based on the Ship-to Location (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Net revenue	$ 39,508	$ 61,316	$ 79,072	$ 115,091
Asia [Member]
Net revenue	34,573	47,873	66,495	93,914
North America [Member]
Net revenue	2,527	11,391	8,346	18,006
Europe [Member]
Net revenue	2,408	2,038	4,231	3,157
Other Regions [Member]
Net revenue		$ 14		$ 14

Note 12 - Segment and Geograp55

Note 12 - Segment and Geographical Information - Net Revenue to Each Significant Country Based on the Ship-to Location (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Sales revenue, net	$ 39,508	$ 61,316	$ 79,072	$ 115,091
CHINA
Sales revenue, net	18,665	33,110	40,455	60,567
TAIWAN, PROVINCE OF CHINA
Sales revenue, net	11,806	9,991	18,757	23,955
UNITED STATES
Sales revenue, net	2,132	11,269	7,652	17,858
KOREA, REPUBLIC OF
Sales revenue, net	2,112	1,606	3,787	3,117
THAILAND
Sales revenue, net	998	2,916	1,852	5,737
Rest of the World [Member]
Sales revenue, net	$ 3,795	$ 2,424	$ 6,569	$ 3,857

Note 13 - Subsequent Events (De

Note 13 - Subsequent Events (Details Textual) - USD ($) $ in Thousands	Aug. 14, 2017	Oct. 28, 2017	Jul. 29, 2017	Jan. 28, 2017
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment			$ 72,673	$ 67,285
Collaborative Arrangement, Mask Set [Member] | Telechips Inc [Member] | Scenario, Forecast [Member]
Collaborative Arrangement, Reversal of Research and Development expense and Share of Net Loss Upon Termination		$ 900
Collaborative Arrangement, Mask Set [Member] | Telechips Inc [Member] | Mask Sets [Member]
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment			$ 600
Subsequent Event [Member] | Collaborative Arrangement, Mask Set [Member] | Telechips Inc [Member]
Collaborative Arrangement, Consideration Received	$ 4,700
Collaborative Arrangement, Reimbursement of Prior Payments	$ 2,500
Products Acquired Under Collaborative Arrangement, Amortization Period	3 years