Sigma Designs (SIGM) 10-Q 7 Dec 17 2018 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Oct. 28, 2017	Nov. 30, 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)		38,741,034
Document Type	10-Q
Document Period End Date	Oct. 28, 2017
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Amendment Flag	false

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 28, 2017	Jan. 28, 2017
Current assets
Cash and cash equivalents	$ 69,219	$ 66,425
Short-term marketable securities		4,781
Restricted cash	325	303
Accounts receivable, net of allowances of $1,848 as of October 28, 2017 and $1,630 as of January 28, 2017	19,628	35,860
Inventory	13,679	18,147
Prepaid expenses and other current assets	7,869	8,017
Total current assets	110,720	133,533
Software, equipment and leasehold improvements, net	18,135	18,523
Intangible assets, net	21,957	30,744
Goodwill	10,594	10,594
Deferred tax assets	741	625
Long-term investment	910	2,000
Other non-current assets	4,138	5,755
Total assets	167,195	201,774
Current liabilities
Accounts payable	14,478	14,230
Accrued compensation and related benefits	10,020	8,127
Accrued liabilities	16,147	13,607
Total current liabilities	40,645	35,964
Income taxes payable	12,929	15,752
Long-term deferred tax liabilities	287	287
Other long-term liabilities	5,439	6,225
Total liabilities	59,300	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; 43,401,872 issued and 38,726,123 outstanding as of October 28, 2017 and 42,806,279 issued and 38,130,530 outstanding as of January 28, 2017	518,248	513,168
Treasury stock, at cost, 4,675,749 shares as of October 28, 2017 and January 28, 2017	(88,336)	(88,336)
Accumulated other comprehensive loss	(891)	(2,178)
Accumulated deficit	(321,126)	(279,108)
Total shareholders’ equity	107,895	143,546
Total liabilities and shareholders’ equity	$ 167,195	$ 201,774

Unaudited Condensed Consolidat3

Unaudited Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) $ / shares in Thousands, $ in Thousands	Oct. 28, 2017	Jan. 28, 2017
Accounts receivable, allowances	$ 1,848	$ 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)	43,401,872	42,806,279
Common stock, shares outstanding (in shares)	38,726,123	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		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Net revenue	$ 33,862	$ 62,729	$ 112,934	$ 177,820
Cost of revenue	16,746	31,734	58,374	93,242
Gross profit	17,116	30,995	54,560	84,578
Operating expenses
Research and development	17,218	18,264	53,380	56,255
Sales and marketing	7,012	5,984	17,498	17,646
General and administrative	5,744	4,578	15,899	14,536
Restructuring charges	563		2,529
Impairment of IP and mask sets	5,463		8,469	300
Total operating expenses	36,000	28,826	97,775	88,737
(Loss) income from operations	(18,884)	2,169	(43,215)	(4,159)
Interest and other income (expense), net	147	179	(1,076)	(157)
(Loss) income before income taxes	(18,737)	2,348	(44,291)	(4,316)
Provision for income taxes	347	2,127	2,329	5,283
Net (loss) income	$ (19,084)	$ 221	$ (46,620)	$ (9,599)
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.49)	$ 0.01	$ (1.22)	$ (0.26)
Diluted (in dollars per share)	$ (0.49)	$ 0.01	$ (1.22)	$ (0.26)
Shares used in computing net income (loss) per share:
Basic (in shares)	38,632	37,666	38,359	37,241
Diluted (in shares)	38,632	38,001	38,359	37,241

Unaudited Condensed Consolidat5

Unaudited Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Net (loss) income	$ (19,084)	$ 221	$ (46,620)	$ (9,599)
Other comprehensive income (loss):
Change in currency translation adjustments, net of tax	102	(232)	1,282	(17)
Change in unrealized (losses) gains on marketable securities, net of tax	(3)	(9)	5	43
Other comprehensive income (loss)	99	(241)	1,287	26
Comprehensive loss	$ (18,985)	$ (20)	$ (45,333)	$ (9,573)

Unaudited Condensed Consolidat6

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016
Cash flows from operating activities:
Net loss	$ (46,620)	$ (9,599)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	10,854	16,800
Stock-based compensation	4,007	5,136
Provision for excess and obsolete inventory	1,442	1,221
Provision for (recovery of) sales returns, discounts and doubtful accounts	218	(123)
Deferred income taxes	(122)	(363)
(Gain on sale) impairment of long-term investment	(110)	886
Impairment of IP and mask sets	9,669	300
Other non-cash activities	(390)	(799)
Changes in operating assets and liabilities:
Accounts receivable	16,014	(19,134)
Inventory	3,026	5,304
Prepaid expenses, other current and non-current assets	2,197	4,263
Accounts payable	733	(6,988)
Other long-term liabilities, accrued liabilities, compensation and related benefits	4,552	4,971
Income taxes payable	2,092	4,177
Net cash provided by operating activities	7,562	6,052
Cash flows from investing activities:
Restricted cash	(22)	584
Purchases of marketable securities	(645)
Sales and maturities of marketable securities	5,431	3,582
Sale of long-term investment	1,200
Purchases of software, equipment and leasehold improvements	(9,558)	(7,847)
Purchases of IP	(4,838)	(5,670)
Reimbursement of mask set related to collaborative arrangement	2,500
Reimbursement of costs related to purchased IP		2,645
Net cash received in connection with acquisition		289
Net cash used in investing activities	(5,932)	(6,417)
Cash flows from financing activities:
Net share settlement of equity awards issued to employees	(326)	(528)
Net proceeds from exercise of employee stock options and stock purchase rights	1,399	2,133
Net cash provided by financing activities	1,073	1,605
Effect of foreign exchange rate changes on cash and cash equivalents	91	(197)
Net increase in cash and cash equivalents	2,794	1,043
Cash and cash equivalents, beginning of period	66,425	63,790
Cash and cash equivalents, end of period	69,219	64,833
Supplemental disclosure of cash flow information:
Cash paid for income taxes	$ 2,917	$ 1,329

Note 1 - Organization and Summa

Note 1 - Organization and Summary of Significant Accounting Policies	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	1. Organization and summary of significant accounting policies Organization and nature of operations: Sigma Designs, Inc. (referred to collectively in these unaudited condensed consolidated financial statements as “Sigma,” “we,” “our,” “the Company” and “us”) is a provider of intelligent platforms for use in a variety of home entertainment and home control appliances. We sell our products into 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: The unaudited condensed consolidated financial statements include the accounts of Sigma Designs, Inc. and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated upon consolidation. We operate and report quarterly financial results that consist of 13 third 2018 2017 October 28, 2017 ( 91 October 29, 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 October 28, 2017 January 28, 2017, three nine October 28, 2017 October 29, 2016, nine October 28, 2017 October 29, 2016. three nine October 28, 2017 not There have been no nine October 28, 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 nine October 28, 2017 $0.1 January 29, 2017. In July 2015, FASB issued ASU 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” We will 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, issued ASU 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	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Cash, Cash Equivalents, and Marketable Securities [Text Block]	2. Cash, cash equivalents and marketable securities As of October 28, 2017 and January 28, 2017, $0.3 not October 28 , 201 7 January 28, 2017 Book Value Net Unrealized L osses Fair Value Book Value Net Unrealized Losses Fair Value Money market funds $ - $ - $ - $ 3,715 $ - $ 3,715 Corporate bonds - - - 3,506 (1 ) 3,505 Fixed income mutual funds - - - 1,280 (4 ) 1,276 Total cash equivalents and marketable securities $ - $ - $ - $ 8,501 $ (5 ) $ 8,496 Cash on hand held in the United States 7,171 9,378 Cash on hand held overseas 62,048 53,332 Total cash on hand 69,219 62,710 Total cash, cash equivalents and marketable securities $ 69,219 $ 71,206 Reported as: Cash and cash equivalents $ 69,219 $ 66,425 Short-term marketable securities - 4,781 $ 69,219 $ 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	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Fair Value Disclosures [Text Block]	3. Fair values of assets and liabilities Determination of fair value Our cash equivalents and marketable securities are classified within Level 1 As of October 28, 2017, we held $0.3 zero January 28, 2017 ( January 28 , 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 $ 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 October 28, 2017, one $0.9 three nine October 28, 2017, $1.0 $1.2 $0.1 three nine October 28, 2017. not may three nine October 28, 2017 October 29, 2016. 20% not November 24, 2017, $1.0 $0.1

Note 4 - Supplemental Financial

Note 4 - Supplemental Financial Information	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Supplemental Balance Sheet Disclosures [Text Block]	4 . Supplemental financial information Inventory consists of the following (in thousands): October 2 8 , 201 7 January 28 , 201 7 Wafers and other purchased materials $ 6,896 $ 8,595 Work-in-process 3,440 2,780 Finished goods 3,343 6,772 Total inventory $ 13,679 $ 18,147 Prepaid expenses and other current assets consist of the following (in thousands): October 28, 2017 January 28, 2017 Prepayments for taxes $ 3,417 $ 3,421 Prepayments for royalties 739 776 Non-operating receivable 490 955 Other current assets 3,223 2,865 Total prepaid expenses and other current assets $ 7,869 $ 8,017 Software, equipment and leasehold improvements consist of the following (in thousands except for years): Estimated Useful Lives (years) October 28 , 201 7 January 28, 2017 Software 3 - 5 $ 54,154 $ 49,915 Mask sets 3 18,841 18,209 Equipment 3 8,676 7,719 Office equipment and furniture 3 - 5 8,158 7,857 Leasehold improvements 1 - 5 2,163 2,108 Total 91,992 85,808 Less: Accumulated depreciation and amortization (73,857 ) (67,285 ) Total software, equipment and leasehold improvements, net $ 18,135 $ 18,523 Software, equipment and leasehold improvement depreciation and amortization expense was $1.2 $2.5 three October 28, 2017 October 29, 2016, $6.4 $8.6 nine October 28, 2017 October 29, 2016, As part of our restructuring plan as discuss ed in Note 7, $1.7 $0.1 three nine October 28, 2017. Accrued liabilities consist of the following (in thousands): October 28 , 201 7 January 28 , 201 7 License fees $ 5,588 $ 5,578 Income taxes payable, current portion 2,407 2,094 Restructuring charges 1,587 - Rebates 1,666 1,585 Compliance audit settlement 1,500 - Royalties 1,274 1,378 Warranty 668 783 Deferred revenue 382 350 Other accrued liabilities 1,075 1,839 Total accrued liabilities $ 16,147 $ 13,607 The following table summarizes activity related to accrued rebates (in thousands): Nine M onths E nded October 2 8 , 201 7 Beginning balance $ 1,585 Charged as a reduction of revenue 1,891 Payments (1,810 ) Ending balance $ 1,666

Note 5 - Intangible Assets

Note 5 - Intangible Assets	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Business Combination Disclosure [Text Block]	5 . Intangible assets The tables below present the balances of our intangible assets (in thousands, except for years): October 2 8 , 201 7 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 ) $ (54,087 ) $ 6,726 7.1 Customer relationships 54,505 (30,486 ) (21,305 ) 2,714 5.0 Trademarks and other 4,078 - (3,948 ) 130 1.1 Purchased IP - amortizing 35,233 (6,716 ) (25,036 ) 3,481 1.8 Total amortizing 179,243 (61,816 ) (104,376 ) 13,051 5.2 Purchased IP - not yet deployed 20,137 (11,231 ) - 8,906 Total intangibles $ 199,380 $ (73,047 ) $ (104,376 ) $ 21,957 January 28 , 201 7 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 As part of our restructuring plan as discuss ed in Note 7, $5.0 $8.0 three nine October 28, 2017, The following table presents the amortization of intangible assets in the accompanying condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended October 2 8 , 201 7 October 29 , 201 6 October 2 8 , 201 7 October 29 , 201 6 Cost of revenue $ 845 $ 2,025 $ 3,138 $ 6,053 Operating expenses 444 709 1,339 2,139 Total intangibles amortization expense $ 1,289 $ 2,734 $ 4,477 $ 8,192 As of October 28 , 2017, Fiscal year Total 201 8 (remaining three months) $ 1,038 201 9 3,718 2020 2,432 20 21 1,588 20 22 1,243 Thereafter 3,032 Total $ 13,051

Note 6 - Commitments and Contin

Note 6 - Commitments and Contingencies	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	6 . Commitments and contingencies Commitments Purchase commitments We place non-cancelable orders to purchase semiconductor products from our suppliers on an eight twelve October 28, 2017, $15.6 Third-party licensed technology In October 2015, $6.1 December 2015 December 2018. October 28, 2017, $3.0 In addition to this agreement, we have entered into other purchase arrangements for certain licensed technology; remaining payments under these agreements totaled $2.6 October 28, 2017. 2019. October 28, 2017. Design Tools In June 2016, $7.8 August 2016 May 2019. As of October 28 , 2017, $4.6 $3.5 October 28, 2017. made through fiscal 2021. October 28, 2017 . Royalties We pay royalties for the right to sell certain products under various license agreements. During the three and nine October 28, 2017, $0.5 $1.9 $1.3 $4.2 three nine October 29, 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 October 28, 2017, $5.2 2013. 4.5% October 28, 2017, $1.2 Contingencies Product warranty In general, we sell products with a one Warranty cost is estimated at the time revenue is recognized based on historical activity, and additionally, for any specific known product warranty issues. Accrued warranty cost includes hardware repair and/or replacement and is included in accrued liabilities in the accompanying condensed consolidated balance sheets. Details of the change in accrued warranty as of October 2 8, 2017 October 29, 2016 Three Months Ended Balance Beginning of Period Additions and Adjustments Deductions Balance End of Period October 2 8, 2017 $ 696 $ 116 $ (144 ) $ 668 October 29 , 2016 $ 952 $ (18 ) $ (142 ) $ 792 Nine Months Ended Balance Beginning of Period Additions and Adjustments Deductions Balance End of Period October 28 , 2017 $ 783 $ 312 $ (427 ) $ 668 October 29 , 2016 $ 959 $ 264 $ (431 ) $ 792 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: On January 23, 2017, 7,633,506 7,796,133. January 24, 2017, 7,633,506 7,796,133. Broadcom Corporation Litigation: On 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 license agreements. On May 15, 2017, October 28, 2017, $1.5 not may We may

Note 7 - Restructuring Charges

Note 7 - Restructuring Charges	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	7 . Restructuring charges On March 24, 2017, 2018 2018 2018. through headcount reductions, facilities closure, and impairment of mask sets and certain purchased IP. We expect to reduce our workforce by between 200 250 2018, may During the three nine October 28, 2017, reductions in our worldwide operations. 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 Charges for the three months ended October 28, 2017 563 Cash payments (573 ) Accrued balance as of October 28, 2017 $ 1,587 Total cost incurred to date as of October 28, 2017 $ 2,529 In addition, we recorded impairment charges for purchased IP and mask sets of $6.7 $9.7 three nine October 28, 2017, no The following table presents the impairment charges in the accompanying condensed consolidated statements of operations (in thousands): Three Months Ended October 28 , 201 7 Nine Months Ended October 28 , 201 7 Cost of revenue $ 1,200 $ 1,200 Operating expenses 5,463 8,469 Total $ 6,663 $ 9,669 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	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Earnings Per Share [Text Block]	8 . Earnings per share Basic net (loss) income per share is computed by dividing net (loss) income by the weighted-average number of common shares outstanding for the fiscal period. Diluted net loss per share is the same as basic net loss per share as the inclusion of potentially issuable shares is anti-dilutive. Diluted net income per share is computed by adjusting outstanding shares, assuming any dilutive effects of stock incentive awards calculated using the treasury stock method. Under the treasury stock method, an increase in the fair market value of our common stock results in a greater dilutive effect from outstanding stock options, restricted stock units and stock purchase rights. Additionally, the exercise of employee stock options and stock purchase rights and the vesting of restricted stock units results in a further dilutive effect on net income per share. The following table sets forth the basic and diluted net (loss) income per share computed for the three nine October 28, 2017 October 29, 2016 ( Three Months Ended Nine Months Ended October 28 , 201 7 October 29 , 201 6 October 2 8 , 201 7 October 29 , 201 6 Numerator: Net (loss) income, as reported $ (19,084 ) $ 221 $ (46,620 ) $ (9,599 ) Denominator: Weighted-average common shares outstanding - basic 38,632 37,666 38,359 37,241 Dilutive effect of employee stock plans - 335 - - Weighted-average common shares outstanding - diluted 38,632 38,001 38,359 37,241 Net (loss) income per share - basic $ (0.49 ) $ 0.01 $ (1.22 ) $ (0.26 ) Net (loss) income per share - diluted $ (0.49 ) $ 0.01 $ (1.22 ) $ (0.26 ) The weighted-average number of shares outstanding used in the computation of basic and diluted net (loss) income per share does not not Three Months Ended Nine Months Ended October 28 , 2017 October 29, 2016 October 2 8 , 2017 October 29, 2016 Stock options 2,286 2,205 2,360 2,421 Restricted stock units and awards 423 114 403 442

Note 9 - Employee Benefits

Note 9 - Employee Benefits	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	9 . Employee benefits 401 We maintain a 401 Under the 401 may $18,000 2017. 50 may $6,000. 401 three nine October 28, 2017 $0.1 $0.5 $0.2 $0.5 three nine October 29, 2016, Endowment insurance pension plan Related to our acquisition of our DTV business in May 2012, It is required by the “Procedures of Shanghai Municipality on Endowment Insurance for Town Employees” to provide pension insurance for Shanghai employees. The mandatory plan is managed by the local authority. Under the current plan, an employee will contribute 8.0% 20% April 2016 March 2017, 17,817 April 2017 March 2018, 19,512 . For the three nine October 28, 2017, $0.6 $1.7 $0.6 $1.8 three nine October 29, 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 October 28, 2017 October 29, 2016, $0.6 nine October 28, 2017 October 29, 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 October 28, 2017, $0.9 $0.8 $0.1 three nine October 28, 2017 October 29, 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 estimated. As discussed in Note 7, $0.6 $2.5 three nine October 28, 2017, Employee s tock p urchase p lan During the first 2016, 2015 2010 “2010 may 2010 may As of October 28, 2017, approximately 36,458 2010 may $3.89 not may not On August 22, 2016, 2010 March 2017, .

Note 10 - Income Taxes

Note 10 - Income Taxes	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Income Tax Disclosure [Text Block]	1 0 . Income taxes We recorded a provision for income taxes of $0.3 $2.2 three October 28, 2017 October 29, 2016, $2.3 $5.3 nine October 28, 2017 October 29, 2016, three nine October 28, 2017 2017 three nine October 28, 2017 October 29, 2016, .

Note 11 - Collaborative Arrange

Note 11 - Collaborative Arrangement	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Collaborative Arrangement Disclosure [Text Block]	1 1 . Collaborative arrangement In September 2016, (“JCA”) with Telechips Inc. (“Telechips”) to develop and commercialize a set-top box microprocessor SoC solution. Martin Manniche, a member of our board of directors, also serves on the board of directors of Telechips. Telechips is responsible for the manufacture of the products and is also the principal in the end customer product sales. Telechips’ wholly-owned subsidiary has the primary responsibility for order fulfillment, collection of receivables and handling of sales returns in all territories. We receive a marketing service fee in an amount equal to 50% third On August 14, 2017, payment of $4.7 $2.5 $0.6 three October 28, 2017, $1.1 $1.1 may $0.6 $0.7 $0.2 three nine October 28, 2017.

Note 12 - Segment and Geographi

Note 12 - Segment and Geographical Information	9 Months Ended
	Oct. 28, 2017
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	1 2 . Segment and geographical information 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 software; that revenue is not zero for the three nine October 28, 2017, zero 0.2% for the three nine October 29, 2016, The following table sets forth net revenue attributable to each target market (in thousands): Three Months Ended Nine Months Ended October 2 8 , 201 7 October 29 , 201 6 October 2 8 , 201 7 October 29 , 201 6 Connected Smart TV Platforms $ 19,435 $ 50,014 $ 73,436 $ 145,400 IoT Devices 14,427 12,715 39,498 32,120 License and other - - - 300 Net revenue $ 33,862 $ 62,729 $ 112,934 $ 177,820 The following table sets forth net revenue for each geographic region based on the ship-to location of customers (in thousands): Three Months Ended Nine Months Ended October 28 , 201 7 October 29 , 201 6 October 28 , 201 7 October 29 , 201 6 Asia $ 29,245 $ 50,569 $ 95,740 $ 144,483 North America 2,406 9,861 10,752 27,867 Europe 2,211 2,297 6,442 5,454 Other regions - 2 - 16 Net revenue $ 33,862 $ 62,729 $ 112,934 $ 177,820 The following table sets forth net revenue for each significant country based on the ship-to location of customers (in thousands): Three Months Ended Nine Months Ended October 28 , 201 7 October 29 , 201 6 October 28 , 201 7 October 29 , 201 6 China, including Hong Kong $ 15,363 $ 26,218 $ 55,818 $ 86,785 Taiwan 10,442 19,662 29,199 43,617 United States 2,096 9,775 9,748 27,633 Republic of Korea 2,057 1,923 5,844 5,040 Poland 1,436 1,087 4,383 2,718 Thailand - 1,884 1,852 7,621 Rest of the world 2,468 2,180 6,090 4,406 Net revenue $ 33,862 $ 62,729 $ 112,934 $ 177,820 During the three October 28, 2017, 24% nine October 28, 2017, 22%, 13% 11% three October 29, 2016, 29% 18% nine October 29, 2016, 21%, 13%, 12% 10%

Significant Accounting Policies

Significant Accounting Policies (Policies)	9 Months Ended
	Oct. 28, 2017
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation: The unaudited condensed consolidated financial statements include the accounts of Sigma Designs, Inc. and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated upon consolidation. We operate and report quarterly financial results that consist of 13 third 2018 2017 October 28, 2017 ( 91 October 29, 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 October 28, 2017 January 28, 2017, three nine October 28, 2017 October 29, 2016, nine October 28, 2017 October 29, 2016. three nine October 28, 2017 not There have been no nine October 28, 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 nine October 28, 2017 $0.1 January 29, 2017. In July 2015, FASB issued ASU 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” We will 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, issued ASU 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 Equivalen20

Note 2 - Cash, Cash Equivalents and Marketable Securities (Tables)	9 Months Ended
	Oct. 28, 2017
Notes Tables
Cash, Cash Equivalents and Investments [Table Text Block]	October 28 , 201 7 January 28, 2017 Book Value Net Unrealized L osses Fair Value Book Value Net Unrealized Losses Fair Value Money market funds $ - $ - $ - $ 3,715 $ - $ 3,715 Corporate bonds - - - 3,506 (1 ) 3,505 Fixed income mutual funds - - - 1,280 (4 ) 1,276 Total cash equivalents and marketable securities $ - $ - $ - $ 8,501 $ (5 ) $ 8,496 Cash on hand held in the United States 7,171 9,378 Cash on hand held overseas 62,048 53,332 Total cash on hand 69,219 62,710 Total cash, cash equivalents and marketable securities $ 69,219 $ 71,206 Reported as: Cash and cash equivalents $ 69,219 $ 66,425 Short-term marketable securities - 4,781 $ 69,219 $ 71,206

Note 3 - Fair Values of Asset21

Note 3 - Fair Values of Assets and Liabilities (Tables)	9 Months Ended
	Oct. 28, 2017
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	January 28 , 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 $ 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 Financi22

Note 4 - Supplemental Financial Information (Tables)	9 Months Ended
	Oct. 28, 2017
Notes Tables
Schedule of Inventory, Current [Table Text Block]	October 2 8 , 201 7 January 28 , 201 7 Wafers and other purchased materials $ 6,896 $ 8,595 Work-in-process 3,440 2,780 Finished goods 3,343 6,772 Total inventory $ 13,679 $ 18,147
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]	October 28, 2017 January 28, 2017 Prepayments for taxes $ 3,417 $ 3,421 Prepayments for royalties 739 776 Non-operating receivable 490 955 Other current assets 3,223 2,865 Total prepaid expenses and other current assets $ 7,869 $ 8,017
Property, Plant and Equipment [Table Text Block]	Estimated Useful Lives (years) October 28 , 201 7 January 28, 2017 Software 3 - 5 $ 54,154 $ 49,915 Mask sets 3 18,841 18,209 Equipment 3 8,676 7,719 Office equipment and furniture 3 - 5 8,158 7,857 Leasehold improvements 1 - 5 2,163 2,108 Total 91,992 85,808 Less: Accumulated depreciation and amortization (73,857 ) (67,285 ) Total software, equipment and leasehold improvements, net $ 18,135 $ 18,523
Schedule of Accrued Liabilities [Table Text Block]	October 28 , 201 7 January 28 , 201 7 License fees $ 5,588 $ 5,578 Income taxes payable, current portion 2,407 2,094 Restructuring charges 1,587 - Rebates 1,666 1,585 Compliance audit settlement 1,500 - Royalties 1,274 1,378 Warranty 668 783 Deferred revenue 382 350 Other accrued liabilities 1,075 1,839 Total accrued liabilities $ 16,147 $ 13,607
Other Current Liabilities [Table Text Block]	Nine M onths E nded October 2 8 , 201 7 Beginning balance $ 1,585 Charged as a reduction of revenue 1,891 Payments (1,810 ) Ending balance $ 1,666

Note 5 - Intangible Assets (Tab

Note 5 - Intangible Assets (Tables)	9 Months Ended
	Oct. 28, 2017
Notes Tables
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]	October 2 8 , 201 7 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 ) $ (54,087 ) $ 6,726 7.1 Customer relationships 54,505 (30,486 ) (21,305 ) 2,714 5.0 Trademarks and other 4,078 - (3,948 ) 130 1.1 Purchased IP - amortizing 35,233 (6,716 ) (25,036 ) 3,481 1.8 Total amortizing 179,243 (61,816 ) (104,376 ) 13,051 5.2 Purchased IP - not yet deployed 20,137 (11,231 ) - 8,906 Total intangibles $ 199,380 $ (73,047 ) $ (104,376 ) $ 21,957 January 28 , 201 7 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 Nine Months Ended October 2 8 , 201 7 October 29 , 201 6 October 2 8 , 201 7 October 29 , 201 6 Cost of revenue $ 845 $ 2,025 $ 3,138 $ 6,053 Operating expenses 444 709 1,339 2,139 Total intangibles amortization expense $ 1,289 $ 2,734 $ 4,477 $ 8,192
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Fiscal year Total 201 8 (remaining three months) $ 1,038 201 9 3,718 2020 2,432 20 21 1,588 20 22 1,243 Thereafter 3,032 Total $ 13,051

Note 6 - Commitments and Cont24

Note 6 - Commitments and Contingencies (Tables)	9 Months Ended
	Oct. 28, 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 October 2 8, 2017 $ 696 $ 116 $ (144 ) $ 668 October 29 , 2016 $ 952 $ (18 ) $ (142 ) $ 792 Nine Months Ended Balance Beginning of Period Additions and Adjustments Deductions Balance End of Period October 28 , 2017 $ 783 $ 312 $ (427 ) $ 668 October 29 , 2016 $ 959 $ 264 $ (431 ) $ 792

Note 7 - Restructuring Charges

Note 7 - Restructuring Charges (Tables)	9 Months Ended
	Oct. 28, 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 Charges for the three months ended October 28, 2017 563 Cash payments (573 ) Accrued balance as of October 28, 2017 $ 1,587 Total cost incurred to date as of October 28, 2017 $ 2,529
Impairment Effects on Statements of Operations [Table Text Block]	Three Months Ended October 28 , 201 7 Nine Months Ended October 28 , 201 7 Cost of revenue $ 1,200 $ 1,200 Operating expenses 5,463 8,469 Total $ 6,663 $ 9,669

Note 8 - Earnings Per Share (Ta

Note 8 - Earnings Per Share (Tables)	9 Months Ended
	Oct. 28, 2017
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three Months Ended Nine Months Ended October 28 , 201 7 October 29 , 201 6 October 2 8 , 201 7 October 29 , 201 6 Numerator: Net (loss) income, as reported $ (19,084 ) $ 221 $ (46,620 ) $ (9,599 ) Denominator: Weighted-average common shares outstanding - basic 38,632 37,666 38,359 37,241 Dilutive effect of employee stock plans - 335 - - Weighted-average common shares outstanding - diluted 38,632 38,001 38,359 37,241 Net (loss) income per share - basic $ (0.49 ) $ 0.01 $ (1.22 ) $ (0.26 ) Net (loss) income per share - diluted $ (0.49 ) $ 0.01 $ (1.22 ) $ (0.26 )
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	Three Months Ended Nine Months Ended October 28 , 2017 October 29, 2016 October 2 8 , 2017 October 29, 2016 Stock options 2,286 2,205 2,360 2,421 Restricted stock units and awards 423 114 403 442

Note 12 - Segment and Geograp27

Note 12 - Segment and Geographical Information (Tables)	9 Months Ended
	Oct. 28, 2017
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three Months Ended Nine Months Ended October 2 8 , 201 7 October 29 , 201 6 October 2 8 , 201 7 October 29 , 201 6 Connected Smart TV Platforms $ 19,435 $ 50,014 $ 73,436 $ 145,400 IoT Devices 14,427 12,715 39,498 32,120 License and other - - - 300 Net revenue $ 33,862 $ 62,729 $ 112,934 $ 177,820
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	Three Months Ended Nine Months Ended October 28 , 201 7 October 29 , 201 6 October 28 , 201 7 October 29 , 201 6 Asia $ 29,245 $ 50,569 $ 95,740 $ 144,483 North America 2,406 9,861 10,752 27,867 Europe 2,211 2,297 6,442 5,454 Other regions - 2 - 16 Net revenue $ 33,862 $ 62,729 $ 112,934 $ 177,820
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 Nine Months Ended October 28 , 201 7 October 29 , 201 6 October 28 , 201 7 October 29 , 201 6 China, including Hong Kong $ 15,363 $ 26,218 $ 55,818 $ 86,785 Taiwan 10,442 19,662 29,199 43,617 United States 2,096 9,775 9,748 27,633 Republic of Korea 2,057 1,923 5,844 5,040 Poland 1,436 1,087 4,383 2,718 Thailand - 1,884 1,852 7,621 Rest of the world 2,468 2,180 6,090 4,406 Net revenue $ 33,862 $ 62,729 $ 112,934 $ 177,820

Note 1 - Organization and Sum28

Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) - Accounting Standards Update 2016-09 [Member] - USD ($) $ in Millions	Apr. 29, 2017	Jan. 29, 2017
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 Equivalen29

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

Note 2 - Cash, Cash Equivalen30

Note 2 - Cash, Cash Equivalents and Marketable Securities - Schedule of Cash, Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Oct. 28, 2017	Jan. 28, 2017	Oct. 29, 2016	Jan. 30, 2016
Book Value		$ 8,501
Net Unrealized Gains (Losses)		(5)
Fair Value		8,496
Fair value - cash on hand	69,219	62,710
Total cash, cash equivalents and marketable securities	69,219	71,206
Cash and cash equivalents	69,219	66,425	$ 64,833	$ 63,790
Short-term marketable securities		4,781
UNITED STATES
Fair value - cash on hand	7,171	9,378
Overseas [Member]
Fair value - cash on hand	62,048	53,332
Money Market Funds [Member]
Book Value		3,715
Net Unrealized Gains (Losses)
Fair Value		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		1,280
Net Unrealized Gains (Losses)		(4)
Fair Value		$ 1,276

Note 3 - Fair Values of Asset31

Note 3 - Fair Values of Assets and Liabilities (Details Textual) - USD ($) $ in Thousands	Nov. 24, 2017	Oct. 28, 2017	Oct. 28, 2017	Oct. 29, 2016
Restricted Cash		$ 300	$ 300
Cash Equivalents, at Carrying Value		0	0
Proceeds from Sale of Long-term Investments			1,200
Marketable Securities		0	0
Preferred Stock Investments in Privately Held Company [Member]
Investment Owned, at Cost		900	900
Proceeds from Sale of Long-term Investments		1,000	1,200
Cost-method Investments, Realized Gain (Loss), Excluding Other than Temporary Impairments		$ 100	$ 100
Preferred Stock Investments in Privately Held Company [Member] | Subsequent Event [Member]
Proceeds from Sale of Long-term Investments	$ 1,000
Cost-method Investments, Realized Gain (Loss), Excluding Other than Temporary Impairments	$ 100

Note 3 - Fair Values of Asset32

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

Note 4 - Supplemental Financi33

Note 4 - Supplemental Financial Information (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Depreciation, Depletion and Amortization, Nonproduction	$ 1.2	$ 2.5	$ 6.4	$ 8.6
Mask Sets [Member]
Tangible Asset Impairment Charges	$ 1.7		$ 0.1

Note 4 - Supplemental Financi34

Note 4 - Supplemental Financial Information - Inventory (Details) - USD ($) $ in Thousands	Oct. 28, 2017	Jan. 28, 2017
Wafers and other purchased materials	$ 6,896	$ 8,595
Work-in-process	3,440	2,780
Finished goods	3,343	6,772
Total inventory	$ 13,679	$ 18,147

Note 4 - Supplemental Financi35

Note 4 - Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Oct. 28, 2017	Jan. 28, 2017
Prepayments for taxes	$ 3,417	$ 3,421
Prepayments for royalties	739	776
Non-operating receivable	490	955
Other current assets	3,223	2,865
Total prepaid expenses and other current assets	$ 7,869	$ 8,017

Note 4 - Supplemental Financi36

Note 4 - Supplemental Financial Information - Software, Equipment and Leasehold Improvements (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 28, 2017	Jan. 28, 2017
Property, plant, and equipment, gross	$ 91,992	$ 85,808
Less: Accumulated depreciation and amortization	(73,857)	(67,285)
Total software, equipment and leasehold improvements, net	18,135	18,523
Software and Software Development Costs [Member]
Property, plant, and equipment, gross	$ 54,154	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]
Estimated Useful Lives (Year)	3 years
Property, plant, and equipment, gross	$ 18,841	18,209
Equipment [Member]
Estimated Useful Lives (Year)	3 years
Property, plant, and equipment, gross	$ 8,676	7,719
Office Equipment [Member]
Property, plant, and equipment, gross	$ 8,158	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	$ 2,163	$ 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 Financi37

Note 4 - Supplemental Financial Information - Accrued Liabilities (Details) - USD ($) $ in Thousands	Oct. 28, 2017	Jul. 29, 2017	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Jan. 30, 2016
License fees	$ 5,588		$ 5,578
Income taxes payable, current portion	2,407		2,094
Restructuring charges	1,587
Rebates	1,666		1,585
Compliance audit settlement	1,500
Royalties	1,274		1,378
Warranty	668	$ 696	783	$ 792	$ 952	$ 959
Deferred revenue	382		350
Other accrued liabilities	1,075		1,839
Total accrued liabilities	$ 16,147		$ 13,607

Note 4 - Supplemental Financi38

Note 4 - Supplemental Financial Information - Other Long-term Liabilities (Details) $ in Thousands	9 Months Ended
	Oct. 28, 2017USD ($)
Beginning balance	$ 1,585
Charged as a reduction of revenue	1,891
Payments	(1,810)
Ending balance	$ 1,666

Note 5 - Intangible Assets (Det

Note 5 - Intangible Assets (Details Textual) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Oct. 28, 2017	Oct. 28, 2017
Purchased Intellectual Property - Not Yet Deployed [Member] | Fiscal 2018 Plan [Member]
Impairment of Intangible Assets, Finite-lived	$ 5	$ 8

Note 5 - Intangible Assets - Ac

Note 5 - Intangible Assets - Acquired Intangible Assets, Subject to Amortization (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Oct. 28, 2017	Jan. 28, 2017
Gross value	$ 199,380	$ 196,466
Impairment	(73,047)	(65,056)
Accumulated amortization and effect of currency translation	(104,376)	(100,666)
Net value	21,957	30,744
Developed Technology Rights [Member]
Gross value	85,427	85,427
Impairment	(24,614)	(24,614)
Accumulated amortization and effect of currency translation	(54,087)	(52,854)
Net value	$ 6,726	$ 7,959
Weighted average remaining amortization period (Year)	7 years 36 days	7 years 146 days
Customer Relationships [Member]
Gross value	$ 54,505	$ 54,505
Impairment	(30,486)	(30,486)
Accumulated amortization and effect of currency translation	(21,305)	(20,897)
Net value	$ 2,714	$ 3,122
Weighted average remaining amortization period (Year)	5 years	5 years 292 days
Trademarks and Other [Member]
Gross value	$ 4,078	$ 4,078
Impairment
Accumulated amortization and effect of currency translation	(3,948)	(3,858)
Net value	$ 130	$ 220
Weighted average remaining amortization period (Year)	1 year 36 days	1 year 328 days
Purchased IP-Amortizing [Member]
Gross value	$ 35,233	$ 36,007
Impairment	(6,716)	(5,516)
Accumulated amortization and effect of currency translation	(25,036)	(23,057)
Net value	$ 3,481	$ 7,434
Weighted average remaining amortization period (Year)	1 year 292 days	2 years 109 days
Acquired Intangible Assets Subtotal [Member]
Gross value	$ 179,243	$ 180,017
Impairment	(61,816)	(60,616)
Accumulated amortization and effect of currency translation	(104,376)	(100,666)
Net value	$ 13,051	$ 18,735
Weighted average remaining amortization period (Year)	5 years 73 days	5 years
Purchased Intellectual Property - Not Yet Deployed [Member]
Gross value	$ 20,137	$ 16,449
Impairment	(11,231)	(4,440)
Accumulated amortization and effect of currency translation
Net value	$ 8,906	$ 12,009

Note 5 - Intangible Assets - Am

Note 5 - Intangible Assets - Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Intangible asset amortization expense	$ 1,289	$ 2,734	$ 4,477	$ 8,192
Cost of Sales [Member]
Intangible asset amortization expense	845	2,025	3,138	6,053
Operating Expense [Member]
Intangible asset amortization expense	$ 444	$ 709	$ 1,339	$ 2,139

Note 5 - Intangible Assets - Fu

Note 5 - Intangible Assets - Future Amortization Expense of Intangible Assets (Details) - Purchased IP-Amortizing [Member] $ in Thousands	Oct. 28, 2017USD ($)
2018 (remaining three months)	$ 1,038
2,019	3,718
2,020	2,432
2,021	1,588
2,022	1,243
Thereafter	3,032
Total	$ 13,051

Note 6 - Commitments and Cont43

Note 6 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Jun. 30, 2016	Oct. 31, 2015	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016	Jan. 28, 2017
Purchase Commitment, Remaining Minimum Amount Committed			$ 15.6		$ 15.6
Percentage of Royalties			4.50%		4.50%
Accrued Royalties			$ 1.2		$ 1.2
Product Warranty, Term					1 year
Compliance Audit Settlement, Current			1.5		$ 1.5
Research and Development [Member]
Proceeds from Grantors					5.2
Cost of Sales [Member]
Direct Operating Cost, Royalty Expense			0.5	$ 1.3	1.9	$ 4.2
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			2.6		2.6
Design Tool Licenses from Supplier One [Member]
Long-term Purchase Commitment, Amount	$ 7.8
Remaining Long Term Purchase Commitment Amount			4.6		4.6
Design Tool Licenses from Supplier Two [Member]
Remaining Long Term Purchase Commitment Amount			$ 3.5		$ 3.5

Note 6 - Commitments and Cont44

Note 6 - Commitments and Contingencies - Change in Accrued Warranty (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Balance, beginning of period	$ 696	$ 952	$ 783	$ 959
Additions and adjustments	116	(18)	312	264
Deductions	(144)	(142)	(427)	(431)
Balance, end of period	$ 668	$ 792	$ 668	$ 792

Note 7 - Restructuring Charge45

Note 7 - Restructuring Charges (Details Textual) - Fiscal 2018 Plan [Member] $ in Thousands	Mar. 24, 2017	Oct. 28, 2017USD ($)	Oct. 28, 2017USD ($)
Asset Impairment Charges		$ 6,663	$ 9,669
Purchased IP and Mask Sets [Member]
Asset Impairment Charges		$ 6,700	$ 9,700
Minimum [Member]
Restructuring and Related Cost, Expected Number of Positions Eliminated	200
Maximum [Member]
Restructuring and Related Cost, Expected Number of Positions Eliminated	250

Note 7 - Restructuring Charge46

Note 7 - Restructuring Charges - Summary of Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016	Jan. 28, 2017
Restructuring Charges	$ 563				$ 2,529
Accrued balance	1,587				1,587
Fiscal 2018 Plan [Member]
Restructuring Charges	563	$ 1,723	$ 243
Cash payments	(573)	(364)	(5)
Accrued balance	1,587	$ 1,597	$ 238		1,587
Total cost incurred to date as of October 28, 2017	$ 2,529				$ 2,529

Note 7 - Restructuring Charge47

Note 7 - Restructuring Charges - Impairment Charges in Condensed Consolidated Statements of Operations (Details) - Fiscal 2018 Plan [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Oct. 28, 2017	Oct. 28, 2017
Impairment Charges	$ 6,663	$ 9,669
Cost of Sales [Member]
Impairment Charges	1,200	1,200
Operating Expense [Member]
Impairment Charges	$ 5,463	$ 8,469

Note 8 - Earnings Per Share - B

Note 8 - Earnings Per Share - Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Net (loss) income	$ (19,084)	$ 221	$ (46,620)	$ (9,599)
Weighted-average common shares outstanding - basic (in shares)	38,632	37,666	38,359	37,241
Dilutive effect of employee stock plans (in shares)		335
Weighted-average common shares outstanding - diluted (in shares)	38,632	38,001	38,359	37,241
Basic (in dollars per share)	$ (0.49)	$ 0.01	$ (1.22)	$ (0.26)
Diluted (in dollars per share)	$ (0.49)	$ 0.01	$ (1.22)	$ (0.26)

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		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Employee Stock Option [Member]
Anti-dilutive securities (in shares)	2,286	2,205	2,360	2,421
Restricted Stock Units (RSUs) [Member]
Anti-dilutive securities (in shares)	423	114	403	442

Note 9 - Employee Benefits (Det

Note 9 - Employee Benefits (Details Textual)	3 Months Ended				9 Months Ended		12 Months Ended
	Oct. 28, 2017USD ($)$ / sharesshares	Jul. 29, 2017USD ($)	Apr. 29, 2017USD ($)	Oct. 29, 2016USD ($)	Oct. 28, 2017USD ($)$ / sharesshares	Oct. 29, 2016USD ($)	Mar. 31, 2018CNY (¥)	Mar. 31, 2017CNY (¥)
Restructuring Charges	$ 563,000				$ 2,529,000
Purchase Plan 2010 [Member]
Share Issued Under Employee Stock Purchase Plan, Subject to Rescission Rights | shares	36,458				36,458
Share Price | $ / shares	$ 3.89				$ 3.89
Fiscal 2018 Plan [Member]
Restructuring Charges	$ 563,000	$ 1,723,000	$ 243,000
Fiscal 2018 Plan [Member] | One-time Termination Benefits [Member]
Restructuring Charges	600,000				$ 2,500,000
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, Maximum Annual Contributions Per Employee, Amount | ¥								¥ 17,817
Defined Contribution Plan, Employer Discretionary Contribution Amount	600,000			600,000	$ 1,700,000	1,800,000
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent					8.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay					20.00%
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, Employer Discretionary Contribution Amount	200,000			200,000	$ 600,000	600,000
Pension Plan [Member] | Domestic Plan [Member]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount					18,000
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Additional Amount for Employees Over Age 50					6,000
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 100,000			$ 200,000	$ 500,000	$ 500,000

Note 10 - Income Taxes (Details

Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Income Tax Expense (Benefit)	$ 347	$ 2,127	$ 2,329	$ 5,283

Note 11 - Collaborative Arran52

Note 11 - Collaborative Arrangement (Details Textual) - USD ($) $ in Thousands	Aug. 14, 2017	Sep. 30, 2016	Oct. 28, 2017	Oct. 28, 2017	Jan. 28, 2017
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment			$ 73,857	$ 73,857	$ 67,285
Telechips Inc [Member] | Mask Sets [Member]
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 600
Collaborative Arrangement, Product [Member] | Telechips Inc [Member]
Collaborative Arrangement, Percentage of Net Profit Receivable as Marketing Service Fee		50.00%
Collaborative Arrangement, Reimbursement of Prior Payments	2,500
Cumulative Amortization Expense, Reversed			600	600
Cumulative Share of Research and Development Expense, Reversed			700	700
Cumulative Net Income (Losses), Reversed			(200)	$ (200)
Collaborative Arrangement, Mask Set [Member] | Telechips Inc [Member]
Collaborative Arrangement, Consideration Received	$ 4,700
Licenses Revenue			1,100
Collaborative Arrangement, Remaining Payment			$ 1,100

Note 12 - Segment and Geograp53

Note 12 - Segment and Geographical Information (Details Textual)	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Number of Reportable Segments			1
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Sunjet Components Corporation [Member]
Concentration Risk, Percentage	24.00%	29.00%	22.00%	21.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Silicon Application [Member]
Concentration Risk, Percentage			13.00%	12.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Arris Global [Member]
Concentration Risk, Percentage		18.00%	11.00%	13.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Arrow Electronics [Member]
Concentration Risk, Percentage				10.00%
License and Other [Member]
Percentage of Revenue During Period	0.00%	0.00%	0.00%	0.20%

Note 12 - Segment and Geograp54

Note 12 - Segment and Geographical Information - Net Revenue and Gross Profit by Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Sales revenue, net	$ 33,862	$ 62,729	$ 112,934	$ 177,820
Connected Smart TV Platforms [Member]
Sales revenue, net	19,435	50,014	73,436	145,400
IoT Devices [Member]
Sales revenue, net	14,427	12,715	39,498	32,120
License and Other [Member]
Sales revenue, net				$ 300

Note 12 - Segment and Geograp55

Note 12 - Segment and Geographical Information - Net Revenue Based on the Ship-to Location (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Sales revenue, net	$ 33,862	$ 62,729	$ 112,934	$ 177,820
Asia [Member]
Sales revenue, net	29,245	50,569	95,740	144,483
North America [Member]
Sales revenue, net	2,406	9,861	10,752	27,867
Europe [Member]
Sales revenue, net	2,211	2,297	6,442	5,454
Other Regions [Member]
Sales revenue, net		$ 2		$ 16

Note 12 - Segment and Geograp56

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		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Sales revenue, net	$ 33,862	$ 62,729	$ 112,934	$ 177,820
CHINA
Sales revenue, net	15,363	26,218	55,818	86,785
TAIWAN, PROVINCE OF CHINA
Sales revenue, net	10,442	19,662	29,199	43,617
UNITED STATES
Sales revenue, net	2,096	9,775	9,748	27,633
KOREA, REPUBLIC OF
Sales revenue, net	2,057	1,923	5,844	5,040
POLAND
Sales revenue, net	1,436	1,087	4,383	2,718
THAILAND
Sales revenue, net		1,884	1,852	7,621
Rest of the World [Member]
Sales revenue, net	$ 2,468	$ 2,180	$ 6,090	$ 4,406