10-Q/A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q/A

 (Amendment No. 1)

(MARK ONE)

☒       QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended November 2, 2013

or

☐       TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to

Commission file number 001-32207

Sigma Designs, Inc.

(Exact name of registrant as specified in its charter)

California	94-2848099
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

1778 McCarthy Boulevard,

Milpitas, California 95035

(Address of principal executive offices including Zip Code)

(408) 262-9003

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes ☑  No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes ☑No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.  (Check one):

Large accelerated filer ☐	Accelerated filer ☑	Non-accelerated filer ☐	Smaller reporting company ☐
		(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes ☐ No ☑

As of December 10, 2013, the Company had 34,602,547 shares of Common Stock outstanding.

Explanatory Note

The sole purpose of this Amendment No. 1 to Sigma Designs, Inc.’s Quarterly Report on Form 10-Q for the period ended November 2, 2013, filed with the Securities and Exchange Commission on December 12, 2013 (the “Form 10-Q”), is to provide the condensed consolidated financial statements and related notes from the Form 10-Q formatted in XBRL (eXtensible Business Reporting Language) furnished as Exhibit 101 to the Form 10-Q in accordance with Rule 405 of Regulation S-T. No other changes have been made to the Form 10-Q.

ITEM 6.  EXHIBITS

(a) Exhibits

The following exhibits are filed herewith:

31.1 Certification of the President and Chief Executive Officer pursuant to Exchange Act Rule 13a-14(a) or 15d-14(a), as adopted pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.

31.2 Certification of the Chief Financial Officer and Secretary pursuant to Exchange Act Rule 13a-14(a) or 15d-14(a), as adopted pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.

32.1 Certificate of President and Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.  (1)

32.2 Certificate of Chief Financial Officer and Secretary pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.  (1)

101.INS** XBRL Instance Document.

101.SCH**XBRL Taxonomy Extension Schema Document.

101.CAL**XBRL Taxonomy Extension Calculation Linkbase Document.

101.DEF**XBRL Taxonomy Extension Definition Linkbase Document.

101.LAB**XBRL Taxonomy Extension Label Linkbase Document.

101.PRE**XBRL Taxonomy Extension Presentation Linkbase Document.

** Furnished with this Form 10-Q. In accordance with Rule 406T of Regulation S-T, the interactive data files on Exhibit 101 hereto are deemed not filed or part of a registration statement or prospectus for the purposes of Sections 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise are not subject to liability under these sections.

(1)  The certificates contained in Exhibits 32.1 and 32.2 are not deemed “filed” for purposes of Section 18 of the Securities and Exchange Act of 1934 and are not to be incorporated by reference into any filing of the registrant under the Securities Act of 1933 or the Securities Exchange Act of 1934, whether made before or after the date hereof irrespective of any general incorporation by reference language contained in any such filing, except to the extent that the registration specifically incorporates it by reference.

SIGNATURES

Pursuant to the requirement of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	SIGMA DESIGNS, INC.
Date: December 12, 2013
	By:	/s/ Thinh Q. Tran
		Thinh Q. Tran
		President and Chief Executive Officer (Principal Executive Officer)
	By:	/s/ Elias N. Nader
		Elias N. Nader
		Interim Chief Financial Officer and Secretary (Principal Financial and Accounting Officer)

EXHIBIT INDEX

31.1 Certification of the President and Chief Executive Officer pursuant to Exchange Act Rule 13a-14(a) or 15d-14(a), as adopted pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.

31.2 Certification of the Chief Financial Officer and Secretary pursuant to Exchange Act Rule 13a-14(a) or 15d-14(a), as adopted pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.

32.1 Certificate of President and Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.  (1)

32.2 Certificate of Chief Financial Officer and Secretary pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.  (1)

101.INS** XBRL Instance Document.

101.SCH**XBRL Taxonomy Extension Schema Document.

101.CAL**XBRL Taxonomy Extension Calculation Linkbase Document.

101.DEF**XBRL Taxonomy Extension Definition Linkbase Document.

101.LAB**XBRL Taxonomy Extension Label Linkbase Document.

101.PRE**XBRL Taxonomy Extension Presentation Linkbase Document.

** Furnished with this Form 10-Q. In accordance with Rule 406T of Regulation S-T, the interactive data files on Exhibit 101 hereto are deemed not filed or part of a registration statement or prospectus for the purposes of Sections 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise are not subject to liability under these sections.

(1)  The certificates contained in Exhibits 32.1 and 32.2 are not deemed “filed” for purposes of Section 18 of the Securities and Exchange Act of 1934 and are not to be incorporated by reference into any filing of the registrant under the Securities Act of 1933 or the Securities Exchange Act of 1934, whether made before or after the date hereof irrespective of any general incorporation by reference language contained in any such filing, except to the extent that the registration specifically incorporates it by reference.

EX-31

Exhibit 31.1 

CERTIFICATION OF THE PRESIDENT AND CHIEF EXECUTIVE OFFICER

PURSUANT TO

SECURITIES EXCHANGE ACT RULES 13A-14(A) AND 15D-14(A)

I, Thinh Tran, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q/A of Sigma Designs, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: December 12, 2013

  /s/ Thinh Q. Tran      

Thinh Q. Tran

President and Chief Executive Officer

EX-31

Exhibit 31.2

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER AND SECRETARY

PURSUANT TO

SECURITIES EXCHANGE ACT RULES 13A-14(A) AND 15D-14(A)

I, Elias N. Nader, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q/A of Sigma Designs, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: December 12, 2013

  /s/ Elias N. Nader      

Elias N. Nader

Interim Chief Financial Officer and Secretary

EX-32

EXHIBIT 32.1 

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Thinh Q. Tran, Chief Executive Officer of Sigma Designs, Inc., does hereby certify to the best of my knowledge, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Sigma Designs, Inc. on Form 10-Q/A for the quarter ended November 2, 2013 to which this certification is attached fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of Sigma Designs, Inc.

Date: December 12, 2013

By:	/s/ Thinh Q. Tran
	Thinh Q. Tran
	President and Chief Executive Officer

EX-32

EXHIBIT 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Elias N. Nader, Interim Chief Financial Officer of Sigma Designs, Inc., does hereby certify to the best of my knowledge, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Sigma Designs, Inc. on Form 10-Q/A for the quarter ended November 2, 2013 to which this certification is attached fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of Sigma Designs, Inc.

Date: December 12, 2013

By:	/s/ Elias N. Nader
	Elias N. Nader
	Interim Chief Financial Officer and Secretary

The foregoing certification is being furnished solely pursuant to Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (Section 1350, Chapter 63 of Title 18, United States Code) and is not deemed filed with the Securities and Exchange Commission as part of the Form 10-Q or as a separate disclosure document and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing. 

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Note 18. Segment and Geographical Information (Details)	9 Months Ended
	Nov. 02, 2013
Segment Reporting [Abstract]
Number of Reportable Segments	1

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Note 18. Segment and Geographical Information (Details) - Net Revenue For Each Geographic Region and Each Significant Country Based on the Ship-to Location (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Note 18. Segment and Geographical Information (Details) - Net Revenue For Each Geographic Region and Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue For Each Geographic Region	$ 54,394	$ 63,905	$ 160,696	$ 172,414
Asia [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue For Each Geographic Region and Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue For Each Geographic Region	38,566	38,514	117,032	119,432
North America [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue For Each Geographic Region and Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue For Each Geographic Region	10,076	4,799	20,736	11,990
Europe [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue For Each Geographic Region and Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue For Each Geographic Region	5,752	17,589	19,720	34,101
Other Regions [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue For Each Geographic Region and Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue For Each Geographic Region		$ 3,003	$ 3,208	$ 6,891

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Note 12. Sale of development project

9 Months Ended

Nov. 02, 2013

Disclosure Text Block Supplement [Abstract]

Mergers, Acquisitions and Dispositions Disclosures [Text Block]

12.          Sale of development project

On March 8, 2013, we entered into an Asset Purchase Agreement with a third party (the “Buyer”) to sell certain development projects (intellectual property) and long-lived assets (the “Connectivity Assets”) related to the connectivity technology over coaxial cable market, including the transfer of 21 employees (the “Connectivity Employees”) to the Buyer. The aggregate carrying amount of the Connectivity Assets ultimately transferred was approximately $0.6 million and were classified as assets held for sale in prepaid expenses and other current assets in the accompanying condensed consolidated balance sheet at February 2, 2013. We received an initial payment of $2.0 million in cash at the closing of the transaction and a payroll expense reimbursement payment of $0.6 million (as described more fully below). Under the terms of the Asset Purchase Agreement, if certain technical milestones were met by September 30, 2013 as a result of further development of the transferred technology by the Buyer, we were to be paid an additional $5.0 million in cash. 

In April 2013, upon receiving the closing consideration of $2.0 million, we recorded a gain of $1.1 million, net of the carrying value of the Connectivity Assets and fees for legal and bank services of approximately $0.4 million. The gain is included in “Gain on sale of development project” in the accompanying condensed consolidated statements of operations for the nine months ended November 2, 2013. The gain was recorded in the first quarter of fiscal 2014 on the basis that we obtained a signed agreement, the closing consideration of $2.0 million was received (non-refundable), delivery of the underlying assets and intellectual property and transfer of employees occurred during the first quarter of fiscal 2014, and we do not have further obligations or deliverables under the Asset Purchase Agreement beyond May 4, 2013.  Additionally, in April 2013, in connection with the Asset Purchase Agreement, the Buyer reimbursed us for payroll expenses related to the employees transferred to the Buyer for the period from February 1, 2013 through the actual payroll transfer, totaling $0.6 million.

We have elected to account for the contingent payment under the milestone method described by FASB ASC Topic 605-28, under which consideration contingent on the achievement of a substantive milestone is recognized in its entirety in the period when the milestone is achieved. Milestones are considered substantive based on the potential enhancement of value to the Buyer and the fact that consideration earned from the achievement of a milestone relates solely to past performance. Accordingly, payment consideration if and when the milestone is met associated with the technical milestone will be recorded as other income in our consolidated statements of operations in its entirety, which was due by September 30, 2013, in accordance with the Asset Purchase Agreement.

The Buyer has advised us that it does not believe the milestones have been met by September 30, 2013. We are reviewing the Buyer’s position and evaluating our response, which may include pursuing our rights through the dispute provisions set forth in the Asset Purchase Agreement. To the extent we recognize any payment in regards to the milestone completion, we will recognize income upon receipt of any such proceeds from the Buyer.

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Note 7. Composition of Certain Financial Statement Captions (Details) - Accrued Liabilities (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Note 7. Composition of Certain Financial Statement Captions (Details) - Accrued Liabilities [Line Items]
Income taxes	$ 4,335	$ 4,508
Accrued Liabilities	19,749	20,018
Other accrued liabilities	1,447	3,537
Royalties	1,117	951
Warranty	1,000	1,447
Deferred revenue	5,213	3,099
License Fees [Member]
Note 7. Composition of Certain Financial Statement Captions (Details) - Accrued Liabilities [Line Items]
Accrued Liabilities	1,037	3,553
Rebates [Member]
Note 7. Composition of Certain Financial Statement Captions (Details) - Accrued Liabilities [Line Items]
Accrued Liabilities	4,656	1,475
Restructuring [Member]
Note 7. Composition of Certain Financial Statement Captions (Details) - Accrued Liabilities [Line Items]
Accrued Liabilities	869	1,023
Settlements [Member]
Note 7. Composition of Certain Financial Statement Captions (Details) - Accrued Liabilities [Line Items]
Accrued Liabilities	$ 75	$ 425

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Unaudited Condensed Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Net loss	$ (2,978)	$ (39,451)	$ (12,302)	$ (66,571)
Other comprehensive income (loss):
Accumulated translation adjustment	187	373	(131)	(122)
Unrealized gain (loss) on marketable securities	(17)	360	(213)	687
Other comprehensive income (loss):	170	733	(344)	565
Comprehensive loss	$ (2,808)	$ (38,718)	$ (12,646)	$ (66,006)

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Note 5. Restricted Cash

9 Months Ended

Nov. 02, 2013

Restricted Cash Disclosure [Abstract]

Restricted Cash Disclosure [Text Block]

5.             Restricted cash

As of November 2, 2013 and February 2, 2013, we had $1.8 million of restricted cash related to deposits pledged to a financial institution with regard to our foreign exchange hedging transactions and an office-space operating lease.

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Accounting Policies, by Policy (Policies)

9 Months Ended

Nov. 02, 2013

Accounting Policies [Abstract]

Business Description and Basis of Presentation [Text Block]

Organization and nature of operations:  Sigma Designs, Inc. (referred to collectively in these interim condensed consolidated financial statements as “Sigma,” “we,” “our”, “the Company” and “us”) is a leader in intelligent media platforms in home entertainment and control.  We focus on integrated system-on-chip, or SoC, solutions that serve as the foundation for some of the world’s leading consumer products, including televisions, set-top boxes and video networking products. All of our primary products are semiconductors that are targeted toward end-product manufacturers, Original Equipment Manufacturers, or OEMs, and Original Design Manufacturers, or ODMs. We sell our products into four primary markets which are the Digital Television, or DTV market, the home networking market, the set-top box market, and the home control market. We derive a portion of our revenue from other products and services, including technology licenses, software development kits, engineering support services for hardware and software, engineering development for customization of chipsets and other accessories.

Basis of Accounting, Policy [Policy Text Block]

Basis of presentation:  The interim condensed consolidated financial statements include Sigma Designs, Inc. and its wholly-owned subsidiaries.  All intercompany balances and transactions are eliminated upon consolidation. We operate and report quarterly financial results that consist of 13 weeks and end on the last Saturday of the period. The third quarter of fiscal 2014 and fiscal 2013 ended on November 2, 2013 (91 days) and October 27, 2012 (91 days), respectively.

The condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or US GAAP, for interim financial information and the rules and regulations of the Securities and Exchange Commission, or SEC.  They do not include all disclosures required by US GAAP for complete financial statements. Therefore, these financial statements should be read in conjunction with our audited consolidated financial statements and notes thereto for the year ended February 2, 2013, included in our fiscal 2013 Annual Report on Form 10-K, as filed with the SEC on April 12, 2013, referred to as our fiscal 2013 Annual Report. 

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 November 2, 2013 and February 2, 2013, the consolidated results of our operations for the three and nine months ended November 2, 2013 and October 27, 2012, and the consolidated cash flows for the nine months ended November 2, 2013 and October 27, 2012.  The results of operations for the three and nine months ended November 2, 2013 are not necessarily indicative of the results to be expected for future quarters or the full year.

Revenue Recognition, Policy [Policy Text Block]

Adoption of new accounting policy: During the third quarter of fiscal 2014, we adopted prospectively, the authoritative guidance, ASU No. 2010-17, “Revenue Recognition – Milestone Method”, (ASU 2010-17) that provides an alternative method of revenue recognition for milestone payments. Under the milestone method guidance, we recognize revenue that is contingent upon the achievement of a substantive milestone in its entirety in the period in which the milestone is achieved. To be considered substantive, the consideration earned by achieving the milestone should be (a) commensurate with (1) either the vendor’s performance to achieve the milestone or (2) to the enhancement of the value of the item delivered as a result of a specific outcome resulting from the vendor’s performance to achieve the milestone (b) the consideration should relate solely to past performance, and (c) the consideration should be reasonable relative to all deliverables and payment terms in the arrangement. Other milestones that do not fall under the definition of a milestone under the milestone method are recognized under the authoritative guidance concerning revenue recognition. There have been no other significant changes in our reported financial position or results of operations and cash flows as a result of the adoption of new accounting pronouncements or to our significant accounting policies that were disclosed in our Annual Report on Form 10-K for the fiscal year ended February 2, 2013 that have had a significant impact on our consolidated financial statements or notes thereto.

Use of Estimates, Policy [Policy Text Block]

Use of estimates:  The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America, or US GAAP, requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period.  The primary areas that require significant estimates and judgments by management include, but are not limited to, revenue recognition, allowances for doubtful accounts, sales returns, warranty obligations, inventory valuation, stock-based compensation expense, purchased intangible asset valuations, strategic investments, deferred income tax asset valuation allowances, uncertain tax positions, tax contingencies, restructuring costs, litigation and other loss contingencies.  These estimates and assumptions are based on historical experience and various other factors that we believe to be reasonable under the circumstances.  Actual results could differ from those estimates, and such differences may be material to our consolidated financial statements.

Business Combinations Policy [Policy Text Block]

Business combinations:  In May 2012, we completed our acquisition of certain assets from Trident Microsystems, Inc. and certain of its subsidiaries (collectively referred to as “Trident”). The consolidated financial statements include the results of operations of Trident commencing as of the acquisition date. Refer to Note 10, "Business combinations”, in Part II, Item 8 of our fiscal 2013 Annual Report.

New Accounting Pronouncements, Policy [Policy Text Block]

Recent Accounting Pronouncements

In July 2013, the FASB issued guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists, with the purpose of reducing diversity in practice. This new standard requires the netting of unrecognized tax benefits ("UTBs") against a deferred tax asset for a loss or other carryforward that would apply in settlement of the uncertain tax positions. Accounting Standard Update 2013-11 ("ASU 2013-11") is required for our fiscal year beginning February 2, 2014. Early adoption is permitted. The Company will adopt ASU 2013-11 for its fiscal year beginning February 2, 2014. We are currently evaluating the impact of our pending adoption of ASU 2013-11 on our consolidated financial statements.

 In July 2012, the FASB issued Accounting Standards Update No. 2012-02, Intangibles—Goodwill and Other (Topic 350)—Testing Indefinite-Lived Intangible Assets for Impairment (ASU 2012-02), to allow entities to use a qualitative approach to test indefinite-lived intangible assets for impairment. ASU 2012-02 permits an entity to first perform a qualitative assessment to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying value. If it is concluded that this is the case, it is necessary to perform the currently prescribed quantitative impairment test by comparing the fair value of the indefinite-lived intangible asset with its carrying value. Otherwise, the quantitative impairment test is not required. ASU 2012-02 is effective for us in our fiscal 2014 and earlier adoption is permitted. We are currently evaluating the impact of our pending adoption of ASU 2012-02 on our consolidated financial statements.

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Note 14. Commitments and Contingencies (Details) - Future Minimum Annual Payments Under Operating Leases (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013
Future Minimum Annual Payments Under Operating Leases [Abstract]
2014 (remaining three months)	$ 1,438
2015	4,356
2016	2,898
2017	1,641
2018	144
Total minimum lease payments	$ 10,477

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Note 8. Business Combinations (Details) - Unaudited Pro Forma Consolidated Results Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Unaudited Pro Forma Consolidated Results Of Operations [Abstract]
Net revenue	$ 54,394	$ 63,905	$ 106,696	$ 195,358
Net loss	$ (2,978)	$ (39,451)	$ (12,302)	$ (85,116)
Basic and diluted net loss per share (in Dollars per share)	$ (0.09)	$ (1.18)	$ (0.36)	$ (2.58)

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Note 13. Sale of IP Licenses

9 Months Ended

Nov. 02, 2013

Sale Of IP Licenses [Abstract]

Sale Of IP Licenses [Text Block]

13.          Sale of IP licenses

On September 27, 2013, the Company entered into an agreement to license specified IP block and other related technology to a customer to be used in chip designs for a fee of approximately $8.8 million. In addition, the Company agreed to provide technical support services to resolve difficulties and to answer inquiries in using the licensed technology. Pursuant to this agreement, the customer is obligated to make payments upon the attainment and acceptance of significant milestones, as set forth in the agreement. During the third quarter of fiscal 2014, the first two milestones were met, delivered and accepted by the customer resulting in $3.9 million of revenue recognition. Total additional milestone payments under the agreement are approximately $4.9 million.

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Note 7. Composition of Certain Financial Statement Captions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Disclosure Text Block Supplement [Abstract]
Depreciation, Depletion and Amortization, Nonproduction	$ 1.8	$ 2.9	$ 6.8	$ 8.0

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Note 18. Segment and Geographical Information (Details) - Major Customers	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
TP Vision [Member]
Revenue, Major Customer [Line Items]
Major Customer		23.00%		16.00%
Flextronics [Member]
Revenue, Major Customer [Line Items]
Major Customer		10.00%		11.00%
Motorola [Member]
Revenue, Major Customer [Line Items]
Major Customer	12.00%

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Note 9. Intangible Assets (Details) (USD $)	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Disclosure Text Block [Abstract]
Amortization of Intangible Assets	$ 2,640,000	$ 3,050,000	$ 8,013,000	$ 7,924,000
Accumulated Amortization, Reclassifications of Intangible Assets	$ 9,000,000		$ 9,000,000

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Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Cash, Cash Equivalents and Marketable Securities (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Nov. 02, 2013	Feb. 02, 2013	Oct. 27, 2012	Jan. 28, 2012
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Cash, Cash Equivalents and Marketable Securities [Line Items]
Book value	$ 43,988	$ 53,448
Net unrealized gain (loss)	376	571
Fair value - cash equivalents and marketable securities	44,364	54,019
Fair value - cash on hand	41,948	28,907
Fair value - cash, cash equivalents and marketable securities	86,312	82,926
Reported as:
Cash and cash equivalents	50,326	51,218	49,331	44,283
Short-term marketable securities	11,412	17,455
Long-term marketable securities	24,574	14,253
United States [Member]
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Cash, Cash Equivalents and Marketable Securities [Line Items]
Fair value - cash on hand	1,954	1,441
Overseas [Member]
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Cash, Cash Equivalents and Marketable Securities [Line Items]
Fair value - cash on hand	39,994	27,466
Corporate Bond Securities [Member]
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Cash, Cash Equivalents and Marketable Securities [Line Items]
Book value	33,841	30,642
Net unrealized gain (loss)	342	537
Fair value - cash equivalents and marketable securities	34,183	31,179
Money Market Funds [Member]
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Cash, Cash Equivalents and Marketable Securities [Line Items]
Book value	8,377	21,032
Fair value - cash equivalents and marketable securities	8,377	21,032
Municipal Bonds and Notes [Member]
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Cash, Cash Equivalents and Marketable Securities [Line Items]
Book value	509	515
Net unrealized gain (loss)	8	14
Fair value - cash equivalents and marketable securities	517	529
Fixed Income Funds [Member]
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Cash, Cash Equivalents and Marketable Securities [Line Items]
Book value	1,261	1,259
Net unrealized gain (loss)	26	20
Fair value - cash equivalents and marketable securities	$ 1,287	$ 1,279

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Note 4. Derivative Financial Instruments (Tables)

9 Months Ended

Nov. 02, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

Derivative Assets	Balance Sheet Location	November 2, 2013		February 2, 2013
Foreign exchange contracts not designated as cash flow hedges	Prepaid expenses and other current assets	$	132	$	438
Total fair value of derivative instruments		$	132	$	438

Derivative Instruments, Gain (Loss) [Table Text Block]

	Gains (Losses) Recognized in Earnings on Derivatives (Including Ineffective Portion)
Derivatives instruments	Amount			Location
Three months ended November 2, 2013, foreign exchange contracts	$	45		Interest and other income, net
Nine months ended November 2, 2013, foreign exchange contracts	$	296		Interest and other income, net
Three months ended October 27, 2012, foreign exchange contracts	$	386		Interest and other income, net
Nine months ended October 27, 2012, foreign exchange contracts	$	(44	)	Interest and other income, net

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Note 3. Fair Values of Assets and Liabilities (Tables)

9 Months Ended

Nov. 02, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	November 2, 2013
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Corporate bonds	$	34,183	$	34,183	$	-	$	-
Money market funds		8,377		8,377		-		-
Municipal bonds and notes		517		517		-		-
Fixed income mutual funds		1,287		1,287		-		-
Total cash equivalents and marketable securities	$	44,364	$	44,364	$	-	$	-
Restricted cash		1,771		1,771		-		-
Derivative instruments asset		132		-		132		-
Total assets measured at fair value	$	46,267	$	46,135	$	132	$	-

	February 2, 2013
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Corporate bonds	$	31,179	$	31,179	$	-	$	-
Money market funds		21,032		21,032		-		-
Municipal bonds and notes		529		529		-		-
Fixed income mutual funds		1,279		1,279		-		-
Total cash equivalents and marketable securities	$	54,019	$	54,019	$	-	$	-
Restricted cash		1,769		1,769		-		-
Derivative instruments asset		438		-		438		-
Total assets measured at fair value	$	56,226	$	55,788	$	438	$	-

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Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		1 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended										1 Months Ended
	Nov. 02, 2013	Feb. 02, 2013	Nov. 30, 2010 Issuer B [Member]	Jan. 30, 2010 Issuer B [Member] Preferred Stock [Member]	Jan. 31, 2009 Issuer B [Member] Preferred Stock [Member]	Oct. 30, 2010 Issuer C [Member] Preferred Stock [Member]	Jan. 29, 2011 Issuer D [Member] Preferred Stock [Member]	Nov. 02, 2013 Issuer E [Member] Convertible Note Receivalbe [Member]	Jan. 29, 2011 Issuer E [Member] Convertible Note Receivalbe [Member]	Nov. 02, 2013 Issuer E [Member] Convertible Note Receivalbe [Member]	Nov. 02, 2013 Issuer F [Member] Preferred Stock [Member] Recognized [Member]	Nov. 02, 2013 Issuer F [Member] Preferred Stock [Member] Held in Escrow [Member]	Nov. 02, 2013 Issuer F [Member] Preferred Stock [Member]	Jul. 30, 2011 Issuer F [Member] Preferred Stock [Member]	Oct. 29, 2011 Issuer G [Member]	Jan. 25, 2012 Issuer H [Member]
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) [Line Items]
Payments to Acquire Investments				$ 1.0	$ 1.0	$ 1.0	$ 1.0		$ 0.3					$ 2.0	$ 0.1
Other than Temporary Impairment Losses, Investments								0.3		0.3
Proceeds from Sale of Long-term Investments											2.1	0.5	2.6
Gain (Loss) on Sale of Equity Investments	0.1												0.1
Notes, Loans and Financing Receivable, Gross, Noncurrent			1.0													2.5
Investment Interest Rate			5.00%													3.00%
Debt Instrument, Decrease, Forgiveness																2.5
Notes Receivable, Related Parties	$ 0.3	$ 3.3

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Note 14. Commitments and Contingencies (Tables)

9 Months Ended

Nov. 02, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Fiscal Year	Amount
2014 (remaining three months)	$	1,438
2015		4,356
2016		2,898
2017		1,641
2018		144
Total minimum lease payments	$	10,477

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Note 3. Fair Values of Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Nov. 02, 2013
Note 3. Fair Values of Assets and Liabilities (Details) [Line Items]
Gain (Loss) on Sale of Equity Investments	$ 0.1
Issuer E [Member] | Convertible Note Receivalbe [Member]
Note 3. Fair Values of Assets and Liabilities (Details) [Line Items]
Other than Temporary Impairment Losses, Investments	0.3
Equity Investments and Promissory Notes Receivable [Member]
Note 3. Fair Values of Assets and Liabilities (Details) [Line Items]
Investment Owned, at Cost	$ 4.4

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Note 7. Composition of Certain Financial Statement Captions (Details) - Accounts receivable (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Accounts receivable [Abstract]
Accounts receivable	$ 39,803	$ 21,943
Allowance for doubtful accounts	(547)	(295)
Total accounts receivable, net	$ 39,256	$ 21,648

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Note 9. Intangible Assets (Tables)

9 Months Ended

Nov. 02, 2013

Disclosure Text Block [Abstract]

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

	November 2, 2013
	Gross Value		Accumulated Amortization and Effect of Currency Translation			Net Value		Weighted Average Remaining Amortization Period (Years)
Acquired intangible assets:
Developed technology	$	52,025	$	(38,908	)	$	13,117		3.1
Customer relationships		20,218		(16,730	)		3,488		2.9
Trademarks		2,678		(2,074	)		604		5.1
Non-compete agreements		1,400		(1,400	)		-		-
Purchased IP - amortizing		16,053		(10,603	)		5,450		1.7
Total amortizing		92,374		(69,715	)		22,659		2.8
Purchased IP - not yet deployed		9,037		-			9,037
Total intangibles	$	101,411	$	(69,715	)	$	31,696

	February 2, 2013
	Gross Value		Accumulated Amortization and Effect of Currency Translation			Net Value		Weighted Average Remaining Amortization Period (Years)
Acquired intangible assets:
Developed technology	$	52,025	$	(34,567	)	$	17,458		3.6
Customer relationships		20,218		(15,782	)		4,436		3.6
Trademarks		2,678		(1,983	)		695		5.9
Non-compete agreements		1,400		(1,400	)		-		-
Purchased IP – amortizing		15,854		(7,970	)		7,884		2.4
Total amortizing		92,175		(61,702	)		30,473		3.4
Purchased IP - not yet deployed		6,100		-			6,100
Total intangibles	$	98,275	$	(61,702	)	$	36,573

Amortization Expense of Intangible Assets [Table Text Block]

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Cost of sales	$	2,257	$	2,647	$	6,848	$	6,716
Operating expenses		383		403		1,165		1,208
Total intangibles amortization expense	$	2,640	$	3,050	$	8,013	$	7,924

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Fiscal year	Total
2014 (remaining three months)	$	2,636
2015		8,800
2016		6,574
2017		3,912
2018		636
Thereafter		101
Total	$	22,659

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Note 12. Sale of development project (Details) (USD $)	1 Months Ended	9 Months Ended			0 Months Ended
	Apr. 30, 2013	Nov. 02, 2013	Mar. 08, 2013	Feb. 02, 2013	Mar. 08, 2013 Additional After Timely First Milestone [Member]	Mar. 08, 2013 MoCa [Member] Closing Consideration [Member]	Mar. 08, 2013 MoCa [Member] Payroll Expense Reimbursement [Member]	Mar. 08, 2013 MoCa [Member]
Note 12. Sale of development project (Details) [Line Items]
Number of Employees Transferred			21
Assets		$ 217,127,000		$ 220,831,000				$ 600,000
Revenue Recognition, Milestone Method, Revenue Recognized					5,000,000	2,000,000	600,000
Gain (Loss) on Sale of Project	1,100,000	1,079,000
Connectivity Assets, Legal Fees, and Bank Services	400,000
Proceeds from Payroll Transfer	$ 600,000

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Note 16. Equity Incentive Plans and Employee Benefits (Details) - Restricted Stock Awards and Restricted Stock Units Activities (USD $)	3 Months Ended				3 Months Ended
	Aug. 03, 2013 Restricted Stock Awards (RSAs) [Member]	May 04, 2013 Restricted Stock Awards (RSAs) [Member]	Nov. 02, 2013 Restricted Stock Awards (RSAs) [Member]	Feb. 01, 2013 Restricted Stock Awards (RSAs) [Member]	Nov. 02, 2013 Restricted Stock Units (RSUs) [Member]	Aug. 03, 2013 Restricted Stock Units (RSUs) [Member]	May 04, 2013 Restricted Stock Units (RSUs) [Member]	Feb. 02, 2013 Restricted Stock Units (RSUs) [Member]
Note 16. Equity Incentive Plans and Employee Benefits (Details) - Restricted Stock Awards and Restricted Stock Units Activities [Line Items]
Number (in Shares)			132,568	163,311				632,262
Grant-Date Fair Value			$ 8.75	$ 8.71				$ 6.28
Aggregate Value			$ 1,159,970	$ 1,422,439				$ 3,970,605
Number - Granted (in Shares)					4,675	143,536	37,675
Grant-Date Fair Value - Granted					$ 5.14	$ 5.12	$ 4.65
Number - Vested (in Shares)	(10,980)	(6,588)			(49,527)	(56,952)	(44,024)
Grant-Date Fair Value - Vested	$ 6.83	$ 9.50			$ 6.38	$ 6.23	$ 6.14
Number - Cancelled (in Shares)		(13,175)			(14,347)	(49,411)	(75,582)
Grant-Date Fair Value - Cancelled		$ 9.50			$ 5.84	$ 6.36	$ 6.39
Number (in Shares)	132,568	143,548	132,568	163,311	528,305	587,504	550,331	632,262
Grant-Date Fair Value	$ 8.75	$ 8.60	$ 8.75	$ 8.71	$ 5.83	$ 5.88	$ 6.16	$ 6.28
Aggregate Value	$ 1,159,970	$ 1,234,513	$ 1,159,970	$ 1,422,439	$ 3,080,018	$ 3,455,878	$ 3,390,039	$ 3,970,605

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Note 11. Restructuring costs (Details) - Summary of Restructuring Costs, Outstanding Payable Balance and Cumulative Restructuring Costs (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended					12 Months Ended				3 Months Ended				12 Months Ended		3 Months Ended			12 Months Ended		3 Months Ended			12 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013 Employee Severance [Member]	Nov. 02, 2013 Employee Severance [Member]	Aug. 03, 2013 Employee Severance [Member]	May 04, 2013 Employee Severance [Member]	May 04, 2013 Employee Severance [Member]	Dec. 31, 2013 Employee Severance [Member]	Feb. 02, 2013 Employee Severance [Member]	Dec. 31, 2013 Impairment of Long-Lived Assets [Member]	Feb. 02, 2013 Impairment of Long-Lived Assets [Member]	Nov. 02, 2013 Facility Closing [Member]	Aug. 03, 2013 Facility Closing [Member]	Aug. 03, 2013 Facility Closing [Member]	May 04, 2013 Facility Closing [Member]	Dec. 31, 2013 Facility Closing [Member]	Feb. 02, 2013 Facility Closing [Member]	Nov. 02, 2013 Total Restructuring Charges [Member]	Aug. 03, 2013 Total Restructuring Charges [Member]	May 04, 2013 Total Restructuring Charges [Member]	Dec. 31, 2013 Total Restructuring Charges [Member]	Feb. 02, 2013 Total Restructuring Charges [Member]	Nov. 02, 2013 Cumulative Restructuring Costs [Member]	Aug. 03, 2013 Cumulative Restructuring Costs [Member]	May 04, 2013 Cumulative Restructuring Costs [Member]	Dec. 31, 2013 Cumulative Restructuring Costs [Member]	Feb. 02, 2013 Cumulative Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Charges	$ 1,104	$ 821	$ 1,994	$ 821	$ 968	$ 1,000	$ 234	$ 250	$ 200	$ 2,167		$ 1,089		$ 137	$ 446	$ 500		$ 8		$ 1,105	$ 680	$ 250	$ 3,264		$ 1,105	$ 680	$ 250	$ 3,264
Cash payments					(235)		(551)	(882)			(1,153)			(501)	(14)		(5)			(736)	(565)	(887)		(1,153)
Non-cash items													(1,089)											(1,089)
Balance					$ 798	$ 798	$ 65	$ 382	$ 382		$ 1,014			$ 70	$ 435	$ 435	$ 3		$ 8	$ 869	$ 500	$ 385		$ 1,022	$ 5,299	$ 4,194	$ 3,514		$ 3,264

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Note 4. Derivative Financial Instruments (Details) - Fair Value of Outstanding Derivative Instruments (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Derivatives, Fair Value [Line Items]
Total fair value of derivative instruments	$ 132	$ 438
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign exchange contracts not designated as cash flow hedges	$ 132	$ 438

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Note 15. Net Loss Per Share (Details) - Excluded Anti-Diluted and Excluded Potentially Dilutive Securities In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Equity Option [Member] | Excluded Because the Effect of Including Would be Anti-Dilutive [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	18	149	21	157
Equity Option [Member] | Excluded Because Exercise Price is in Excess of Average Stock Price [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	4,078	5,380	4,477	5,460
Restricted Stock [Member] | Excluded Because the Effect of Including Would be Anti-Dilutive [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	75	147	44	87
Restricted Stock [Member] | Excluded Because Potential Buyback Shares Exceed Weighted Average Restricted Stock Units and Awards Outstanding [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	230	68	410	290

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Note 2. Cash, Cash Equivalents and Marketable Securities (Tables)

9 Months Ended

Nov. 02, 2013

Disclosure Text Block Supplement [Abstract]

Schedule of Cash, Cash Equivalents and Investments [Table Text Block]

	November 2, 2013						February 2, 2013
	Book Value		Net Unrealized Gains (Losses)		Fair Value		Book Value		Net Unrealized Gains (Losses)		Fair Value
Corporate bonds	$	33,841	$	342	$	34,183	$	30,642	$	537	$	31,179
Money market funds		8,377		-		8,377		21,032		-		21,032
Municipal bonds and notes		509		8		517		515		14		529
Fixed income mutual funds		1,261		26		1,287		1,259		20		1,279
Total cash equivalents and marketable securities	$	43,988	$	376	$	44,364	$	53,448	$	571	$	54,019
Cash on hand held in the United States						1,954						1,441
Cash on hand held overseas						39,994						27,466
Total cash on hand						41,948						28,907
Total cash, cash equivalents and marketable securities					$	86,312					$	82,926
Reported as:
Cash and cash equivalents						50,326						51,218
Short-term marketable securities						11,412						17,455
Long-term marketable securities						24,574						14,253
					$	86,312					$	82,926

Investments Classified by Contractual Maturity Date [Table Text Block]

	November 2, 2013				February 2, 2013
	Book Value		Fair Value		Book Value		Fair Value
Due in one year or less	$	19,704	$	19,790	$	39,595	$	39,766
Due in greater than one year		24,284		24,574		13,853		14,253
Total	$	43,988	$	44,364	$	53,448	$	54,019

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Note 1. Organization and Summary of Significant Accounting Policies

9 Months Ended

Nov. 02, 2013

Accounting Policies [Abstract]

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 interim condensed consolidated financial statements as “Sigma,” “we,” “our”, “the Company” and “us”) is a leader in intelligent media platforms in home entertainment and control.  We focus on integrated system-on-chip, or SoC, solutions that serve as the foundation for some of the world’s leading consumer products, including televisions, set-top boxes and video networking products. All of our primary products are semiconductors that are targeted toward end-product manufacturers, Original Equipment Manufacturers, or OEMs, and Original Design Manufacturers, or ODMs. We sell our products into four primary markets which are the Digital Television, or DTV market, the home networking market, the set-top box market, and the home control market. We derive a portion of our revenue from other products and services, including technology licenses, software development kits, engineering support services for hardware and software, engineering development for customization of chipsets and other accessories.

Basis of presentation:  The interim condensed consolidated financial statements include Sigma Designs, Inc. and its wholly-owned subsidiaries.  All intercompany balances and transactions are eliminated upon consolidation. We operate and report quarterly financial results that consist of 13 weeks and end on the last Saturday of the period. The third quarter of fiscal 2014 and fiscal 2013 ended on November 2, 2013 (91 days) and October 27, 2012 (91 days), respectively.

The condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or US GAAP, for interim financial information and the rules and regulations of the Securities and Exchange Commission, or SEC.  They do not include all disclosures required by US GAAP for complete financial statements. Therefore, these financial statements should be read in conjunction with our audited consolidated financial statements and notes thereto for the year ended February 2, 2013, included in our fiscal 2013 Annual Report on Form 10-K, as filed with the SEC on April 12, 2013, referred to as our fiscal 2013 Annual Report. 

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 November 2, 2013 and February 2, 2013, the consolidated results of our operations for the three and nine months ended November 2, 2013 and October 27, 2012, and the consolidated cash flows for the nine months ended November 2, 2013 and October 27, 2012.  The results of operations for the three and nine months ended November 2, 2013 are not necessarily indicative of the results to be expected for future quarters or the full year.

Certain prior year balances have been reclassified to conform to the current year’s presentation. Such reclassifications did not affect our consolidated total revenues, consolidated operating income (loss) or consolidated net loss.

Adoption of new accounting policy: During the third quarter of fiscal 2014, we adopted prospectively, the authoritative guidance, ASU No. 2010-17, “Revenue Recognition – Milestone Method”, (ASU 2010-17) that provides an alternative method of revenue recognition for milestone payments. Under the milestone method guidance, we recognize revenue that is contingent upon the achievement of a substantive milestone in its entirety in the period in which the milestone is achieved. To be considered substantive, the consideration earned by achieving the milestone should be (a) commensurate with (1) either the vendor’s performance to achieve the milestone or (2) to the enhancement of the value of the item delivered as a result of a specific outcome resulting from the vendor’s performance to achieve the milestone (b) the consideration should relate solely to past performance, and (c) the consideration should be reasonable relative to all deliverables and payment terms in the arrangement. Other milestones that do not fall under the definition of a milestone under the milestone method are recognized under the authoritative guidance concerning revenue recognition. There have been no other significant changes in our reported financial position or results of operations and cash flows as a result of the adoption of new accounting pronouncements or to our significant accounting policies that were disclosed in our Annual Report on Form 10-K for the fiscal year ended February 2, 2013 that have had a significant impact on our consolidated financial statements or notes thereto.

Use of estimates:  The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America, or US GAAP, requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period.  The primary areas that require significant estimates and judgments by management include, but are not limited to, revenue recognition, allowances for doubtful accounts, sales returns, warranty obligations, inventory valuation, stock-based compensation expense, purchased intangible asset valuations, strategic investments, deferred income tax asset valuation allowances, uncertain tax positions, tax contingencies, restructuring costs, litigation and other loss contingencies.  These estimates and assumptions are based on historical experience and various other factors that we believe to be reasonable under the circumstances.  Actual results could differ from those estimates, and such differences may be material to our consolidated financial statements.

Business combinations:  In May 2012, we completed our acquisition of certain assets from Trident Microsystems, Inc. and certain of its subsidiaries (collectively referred to as “Trident”). The consolidated financial statements include the results of operations of Trident commencing as of the acquisition date. Refer to Note 10, "Business combinations”, in Part II, Item 8 of our fiscal 2013 Annual Report.

Recent Accounting Pronouncements

In July 2013, the FASB issued guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists, with the purpose of reducing diversity in practice. This new standard requires the netting of unrecognized tax benefits ("UTBs") against a deferred tax asset for a loss or other carryforward that would apply in settlement of the uncertain tax positions. Accounting Standard Update 2013-11 ("ASU 2013-11") is required for our fiscal year beginning February 2, 2014. Early adoption is permitted. The Company will adopt ASU 2013-11 for its fiscal year beginning February 2, 2014. We are currently evaluating the impact of our pending adoption of ASU 2013-11 on our consolidated financial statements.

 In July 2012, the FASB issued Accounting Standards Update No. 2012-02, Intangibles—Goodwill and Other (Topic 350)—Testing Indefinite-Lived Intangible Assets for Impairment (ASU 2012-02), to allow entities to use a qualitative approach to test indefinite-lived intangible assets for impairment. ASU 2012-02 permits an entity to first perform a qualitative assessment to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying value. If it is concluded that this is the case, it is necessary to perform the currently prescribed quantitative impairment test by comparing the fair value of the indefinite-lived intangible asset with its carrying value. Otherwise, the quantitative impairment test is not required. ASU 2012-02 is effective for us in our fiscal 2014 and earlier adoption is permitted. We are currently evaluating the impact of our pending adoption of ASU 2012-02 on our consolidated financial statements.

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Note 3. Fair Values of Assets and Liabilities

9 Months Ended

Nov. 02, 2013

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

3.             Fair values of assets and liabilities

Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price).” The accounting standards establish a consistent framework for measuring fair value and disclosure requirements about fair value measurements and among other things, require us to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

Fair value hierarchy

The accounting standards discuss valuation techniques, such as the market approach (comparable market prices), the income approach (present value of future income or cash flow), and the cost approach (cost to replace the service capacity of an asset or replacement cost). The standards utilize a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels:

● Level 1 - Valuation is based upon quoted prices for identical instruments traded in active markets.

● Level 2 - Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market.

● Level 3 - Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect our estimate of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.

Determination of fair value

Our cash equivalents and marketable securities are classified within Level 1 of the fair value hierarchy because they are valued using quoted market prices, broker or dealer quotations or alternative pricing sources with reasonable levels of price transparency. The types of marketable securities valued based on quoted market prices in active markets include most U.S. government and agency securities, sovereign government obligations, money market securities and certain corporate obligations with high credit ratings and an ongoing trading market.

Our foreign currency derivative instruments are classified as Level 2 because they are valued using quoted prices and other observable data of similar instruments in active markets.

The tables below present the balances of our assets and liabilities measured at fair value on a recurring basis as of November 2, 2013 and February 2, 2013 (in thousands):

	November 2, 2013
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Corporate bonds	$	34,183	$	34,183	$	-	$	-
Money market funds		8,377		8,377		-		-
Municipal bonds and notes		517		517		-		-
Fixed income mutual funds		1,287		1,287		-		-
Total cash equivalents and marketable securities	$	44,364	$	44,364	$	-	$	-
Restricted cash		1,771		1,771		-		-
Derivative instruments asset		132		-		132		-
Total assets measured at fair value	$	46,267	$	46,135	$	132	$	-

	February 2, 2013
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Corporate bonds	$	31,179	$	31,179	$	-	$	-
Money market funds		21,032		21,032		-		-
Municipal bonds and notes		529		529		-		-
Fixed income mutual funds		1,279		1,279		-		-
Total cash equivalents and marketable securities	$	54,019	$	54,019	$	-	$	-
Restricted cash		1,769		1,769		-		-
Derivative instruments asset		438		-		438		-
Total assets measured at fair value	$	56,226	$	55,788	$	438	$	-

Assets measured and recorded at fair value on a non-recurring basis

Our non-marketable promissory notes receivable and preferred stock investments in privately-held venture capital funded technology companies are recorded at cost and are adjusted to fair value only in the event that they become other-than-temporarily impaired, as we are not able to estimate their fair value by practicable means. As further described in Note 6, as of November 2, 2013, we held equity investments in three, and promissory notes receivable in one, privately-held venture capital funded technology companies and an equity investment in one joint venture, with an aggregate face value equal to cost of $4.4 million. During the three months ended November 2, 2013, we recognized a gain of approximately $0.1 million relating to the sale of an equity investment partially offset by an impairment charge of $0.3 million for another equity investment which we determined had an other-than-temporary impairment. As of November 2, 2013, we did not identify any other events or changes in circumstances that may have had a significant adverse effect on the fair value of our remaining investments; as a result they were not evaluated for impairment. Each of these equity investments in privately-held companies constituted less than a 20% ownership position. Furthermore, we do not believe that we have the ability to exert significant influence over any of these companies.

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Note 6. Investments In and Notes Receivable from Privately Held Companies

9 Months Ended

Nov. 02, 2013

Investment Holdings [Abstract]

Investment Holdings [Text Block]

6.             Investments in and notes receivable from privately held companies

The following table sets forth the value of investments in and notes receivable from privately-held companies (in thousands): 

Equity investments:	November 3, 2013		February 2, 2013
Issuer B	$	2,000	$	2,000
Issuer C		1,000		1,000
Issuer D		1,000		1,000
Issuer E		-		300
Issuer F		-		2,000
Issuer G		144		143
Total equity investments	$	4,144	$	6,443
Notes receivable:
Issuer B		300		750
Issuer H		-		2,500
Total notes receivable		300		3,250
Total equity investments and notes receivable	$	4,444	$	9,693

Equity investments

During fiscal 2009, we purchased shares of preferred stock in a privately-held venture capital funded technology company (“Issuer B”) at a total investment cost of $1.0 million. In the fourth quarter of fiscal 2010, we purchased additional shares of preferred stock in Issuer B at a cost of $1.0 million.

In the third quarter of fiscal 2011, we purchased shares of preferred stock in another privately-held technology company (“Issuer C”) at a total investment cost of $1.0 million.

In the fourth quarter of fiscal 2011, we purchased shares of preferred stock in another privately-held technology company (“Issuer D”) at a total investment cost of $1.0 million.

In the fourth quarter of fiscal 2011, we also purchased a convertible note, which has been converted to equity, from another privately-held technology company (“Issuer E”) with a face value equal to the cost of $0.3 million. In the third quarter of fiscal 2014, we recorded an impairment charge of $0.3 million on this investment as we concluded the impairment to be other-than temporary.

In the second quarter of fiscal 2012, we purchased shares of preferred stock in another privately-held technology company (“Issuer F”) at a total investment cost of $2.0 million. During the third quarter of fiscal 2014, we sold this investment for a total consideration of $2.6 million of which we received $2.1 million cash and recognized a gain of approximately $0.1 million on the sale of the investment, accordingly. The remaining $0.5 million is held in escrow related to an indemnity agreement for an 18-month period. We will recognize a gain on the remaining consideration upon receipt of the net proceeds from escrow.

In the third quarter of fiscal 2012, we made an equity investment of $0.1 million in a privately-held joint venture (“Issuer G”).

Notes receivable from privately-held companies

In November 2010, we loaned $1.0 million to Issuer B and received a secured promissory note. This promissory note is secured by the assets of Issuer B, bears interest at a rate of 5% per annum and is scheduled to be fully repaid during the fourth quarter of fiscal 2014.

In January 2012, we loaned $2.5 million to a privately-held venture capital funded technology company (“Issuer H”), pursuant to a strategic agreement dated January 25, 2012. We made this loan in exchange for a secured promissory note, which was secured by the assets of Issuer H and bore interest at a rate of 3% per annum. The principal amount and accrued interest were due 36 months from the agreement date. On May 16, 2013, we entered into a Non-Exclusive License Agreement with Issuer H under which we agreed to apply Issuer H’s loan balance of $2.5 million plus accrued interest to offset the initial license fees under this license agreement for certain technologies.

As of November 2, 2013 and February 2, 2013, our notes receivable from privately-held companies were valued at $0.3 million and $3.3 million, respectively, representing their cost. We made each of the above-described investments because we viewed the issuer as either having strategic technology or a business that would complement our technological capabilities or help create an opportunity for us to sell our chipset solutions. The Company analyzes each investment quarterly for evidence of impairment.

The Company’s President and Chief Executive Officer is a member of the Board of Directors of four of the six companies we have invested in. Each of the aforementioned investment transactions was negotiated without the personal involvement of the executive officer who had a personal interest in the transaction. 

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Note 16. Equity Incentive Plans and Employee Benefits (Details) - Stock-Based Compensation Expense (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 1,668	$ 2,503	$ 5,387	$ 8,078
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	64	131	214	380
Research and Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	778	1,375	2,721	4,346
Selling and Marketing Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	365	458	1,029	1,412
General and Administrative Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 461	$ 539	$ 1,423	$ 1,940

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Note 4. Derivative Financial Instruments

9 Months Ended

Nov. 02, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments and Hedging Activities Disclosure [Text Block]

4.             Derivative financial instruments

We use derivative instruments primarily to manage exposures to foreign currency exchange rate risks. Our primary objective in holding derivatives is to reduce the volatility of earnings and cash flows associated with changes in foreign currency exchange rates. Substantially all of our revenue is transacted in U.S. dollars; however, a significant amount of our operating expenditures and capital purchases are incurred in or exposed to other currencies, primarily the Israeli shekel, or NIS.

Foreign exchange contracts are recognized either as assets or as liabilities on the balance sheet at fair value at the end of each reporting period. The accounting treatment of these instruments is based on whether the instruments are designated as hedge or non-hedge instruments. For those derivatives qualifying for hedge accounting, the effective portions of derivative’s gains or losses on these hedges are initially recorded in accumulated other comprehensive income (“AOCI”) until the hedged item is recognized in earnings. The effective portions of net investment hedges are recorded in other comprehensive income (“OCI”) as a part of the cumulative translation adjustment. We record the ineffective portions of the hedging instruments in interest and other income, net in our condensed consolidated statements of operations. For those derivative instruments that do not qualify for hedge accounting, we record the changes in fair value directly in earnings as interest and other income, net in our condensed consolidated statement of operations.

Beginning in the first quarter of fiscal 2012, we elected to discontinue assessing new derivative contracts that are used in managing NIS denominated transactions for hedge effectiveness and thus such contracts do not qualify for hedge accounting. As a result of this change, we recognize all gains and losses from changes in the fair value of these derivate contracts directly into earnings rather than deferring any such amounts in OCI.

As of November 2, 2013, we had foreign exchange contracts to sell up to approximately $3.4 million for a total amount of approximately NIS 12.3 million, that mature on or before April 28, 2014.  As of February 2, 2013, we had foreign exchange contracts to sell up to approximately $10.4 million for a total amount of approximately NIS 40.0 million, that mature on or before December 23, 2013. For the three and nine months ended November 2, 2013, we recognized gains of less than $0.1 million and $0.3 million, respectively, as a result of foreign exchange contracts. For the three and nine months ended October 27, 2012, we recognized a gain of approximately $0.4 million and a loss of less than $0.1 million, respectively, as a result of foreign exchange contracts.

The following table presents the fair value of our outstanding derivative instruments as of November 2, 2013 and February 2, 2013 (in thousands):

Derivative Assets	Balance Sheet Location	November 2, 2013		February 2, 2013
Foreign exchange contracts not designated as cash flow hedges	Prepaid expenses and other current assets	$	132	$	438
Total fair value of derivative instruments		$	132	$	438

The effects of derivative instruments on our net loss and accumulated other comprehensive income (loss) for the three and nine months ended November 2, 2013 and October 27, 2012 are summarized as follows (in thousands):

	Gains (Losses) Recognized in Earnings on Derivatives (Including Ineffective Portion)
Derivatives instruments	Amount			Location
Three months ended November 2, 2013, foreign exchange contracts	$	45		Interest and other income, net
Nine months ended November 2, 2013, foreign exchange contracts	$	296		Interest and other income, net
Three months ended October 27, 2012, foreign exchange contracts	$	386		Interest and other income, net
Nine months ended October 27, 2012, foreign exchange contracts	$	(44	)	Interest and other income, net

There was no impact from ineffective portions on designated cash flow derivative contracts for the three and nine months ended November 2, 2013 and October 27, 2012.

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Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	$ 44,364	$ 54,019
Restricted cash	1,771	1,769
Derivative instruments	132	438
Total assets/liabilities measured at fair value	46,267	56,226
Fair Value, Inputs, Level 1 [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	44,364	54,019
Restricted cash	1,771	1,769
Total assets/liabilities measured at fair value	46,135	55,788
Fair Value, Inputs, Level 2 [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Derivative instruments	132	438
Total assets/liabilities measured at fair value	132	438
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	34,183	31,179
Corporate Bond Securities [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	34,183	31,179
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	8,377	21,032
Money Market Funds [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	8,377	21,032
Municipal Bonds and Notes [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	517	529
Municipal Bonds and Notes [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	517	529
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	1,287	1,279
Fixed Income Funds [Member]
Note 3. Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	$ 1,287	$ 1,279

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Note 6. Investments In and Notes Receivable from Privately Held Companies (Tables)

9 Months Ended

Nov. 02, 2013

Investment Holdings [Abstract]

Schedule Of Equity Investments In And Financing Notes Receivable From Privately Held Companies [Table Text Block]

Equity investments:	November 3, 2013		February 2, 2013
Issuer B	$	2,000	$	2,000
Issuer C		1,000		1,000
Issuer D		1,000		1,000
Issuer E		-		300
Issuer F		-		2,000
Issuer G		144		143
Total equity investments	$	4,144	$	6,443
Notes receivable:
Issuer B		300		750
Issuer H		-		2,500
Total notes receivable		300		3,250
Total equity investments and notes receivable	$	4,444	$	9,693

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Note 10. Product Warranty (Tables)

9 Months Ended

Nov. 02, 2013

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

Three Months Ended	Balance Beginning of Period		Additions and Adjustments		Deductions			Balance End of Period
November 2, 2013	$	1,040	$	175	$	(215	)	$	1,000
October 27, 2012	$	1,157	$	373	$	(203	)	$	1,327

Nine Months Ended	Balance Beginning of Period		Additions and Adjustments		Deductions			Balance End of Period
November 2, 2013	$	1,447	$	213	$	(660	)	$	1,000
October 27, 2012	$	1,326	$	729	$	(728	)	$	1,327

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Note 16. Equity Incentive Plans and Employee Benefits (Details) - Stock Option Activities (USD $)	3 Months Ended
	Nov. 02, 2013	Aug. 03, 2013	May 04, 2013
Stock Option Activities [Abstract]
Number of Shares Outstanding	4,216,894	4,586,004	5,055,787
Weighted Average Exercise Price (in Dollars per share)	$ 11.57	$ 12.65	$ 12.50
Options exercisable as of:
November 2, 2013	3,065,559
November 2, 2013 (in Dollars per share)	$ 12.76
Number of Shares Outstanding		368,680
Weighted Average Exercise Price per Share (in Dollars per share)		$ 4.59
Number of Shares Outstanding	(1,387)	(8,878)	(9,949)
Weighted Average Exercise Price per Share (in Dollars per share)	$ 0.95	$ 2.21	$ 3.26
Number of Shares Outstanding	(223,542)	(728,912)	(459,834)
Weighted Average Exercise Price per Share (in Dollars per share)	$ 12.21	$ 15.07	$ 11.18
Number of Shares Outstanding	3,991,965	4,216,894	4,586,004
Weighted Average Exercise Price (in Dollars per share)	$ 11.60	$ 11.57	$ 12.65

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Note 18. Segment and Geographical Information (Tables)

9 Months Ended

Nov. 02, 2013

Note 18. Segment and Geographical Information (Tables) [Line Items]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
DTV	$	13,078	$	30,140	$	43,358	$	61,766
Home Networking		19,409		19,735		59,147		62,991
Set-top Box		9,595		9,059		30,390		34,534
Home Control		5,952		4,803		16,390		11,209
License and Other		6,360		168		11,411		1,914
Net revenue	$	54,394	$	63,905	$	160,696	$	172,414

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Asia	$	38,566	$	38,514	$	117,032	$	119,432
North America		10,076		4,799		20,736		11,990
Europe		5,752		17,589		19,720		34,101
Other regions		-		3,003		3,208		6,891
Net revenue	$	54,394	$	63,905	$	160,696	$	172,414

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

	Three Months Ended						Nine Months Ended
	November 2, 2013			October 27, 2012			November 2, 2013		October 27, 2012
TP Vision		*			23	%		*		16	%
Flextronics		*			10	%		*		11	%
Cal-Comp Electronics		12	%		*			*		*

Geographic Concentration Risk [Member]

Note 18. Segment and Geographical Information (Tables) [Line Items]

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
China, including Hong Kong	$	22,641	$	26,108	$	78,816	$	88,651
Thailand		9,326		1,697		18,065		3,519
Hungary		2,680		14,601		12,349		26,759
United States		9,903		4,211		19,886		10,100
Rest of the world		9,844		17,288		31,580		43,385
Net revenue	$	54,394	$	63,905	$	160,696	$	172,414

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Note 16. Equity Incentive Plans and Employee Benefits (Details) (USD $)	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Note 16. Equity Incentive Plans and Employee Benefits (Details) [Line Items]
Other Employee Related Liabilities, Current	$ 1,200,000	$ 1,200,000	$ 1,200,000	$ 1,200,000
2010 Purchase Plan [Member]
Note 16. Equity Incentive Plans and Employee Benefits (Details) [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)	2,500,000		2,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value			1,895,613
401(k) Tax Deferred Savings Plan [Member] | Defined Contribution Pension [Member]
Note 16. Equity Incentive Plans and Employee Benefits (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	0	200,000	0	700,000
Endowment Insurance Pension Plan [Member] | Defined Contribution Pension [Member]
Note 16. Equity Incentive Plans and Employee Benefits (Details) [Line Items]
Defined Contribution Plan, Cost Recognized	500,000	500,000	1,600,000	600,000
Retirement Pension Plan, Denmark [Member] | Defined Contribution Pension [Member]
Note 16. Equity Incentive Plans and Employee Benefits (Details) [Line Items]
Supplemental Unemployment Benefits, Severance Benefits	$ 1,300,000	$ 1,300,000	$ 1,300,000	$ 1,300,000

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Note 8. Business Combinations (Details) - Purchase Price Allocation (USD $) In Thousands, unless otherwise specified	0 Months Ended	1 Months Ended	9 Months Ended
	May 04, 2012	May 31, 2012	Nov. 02, 2013
Purchased tangible assets and liabilities
Accounts receivable			$ 13,410
Inventory			13,643
Deposit with contract manufacturer			3,543
Property and equipment			2,553
Property and equipment			1 year 6 months
Net liabilities			(1,489)
Purchased identifiable intangible assets:
Gain on acquisition			(1,417)
Prepaid Inventory [Member]
Purchased tangible assets and liabilities
Prepaid assets			2,895
Prepaid Third Party Support [Member]
Purchased tangible assets and liabilities
Prepaid assets			2,466
Mask Sets [Member]
Purchased tangible assets and liabilities
Mask sets			1,438
Mask sets			3 years
Trident Microsystems, Inc. [Member] | Developed Technology Rights [Member]
Purchased identifiable intangible assets:
Developed technology			1,168
Developed technology			3 years
Trident Microsystems, Inc. [Member]
Purchased identifiable intangible assets:
Gain on acquisition		(1,400)
Total consideration issued in the acquisition	38,200		38,210
Acquisition of Computer Manufacturer [Member]
Purchased identifiable intangible assets:
Cash consideration			$ 38,210

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Note 7. Composition of Certain Financial Statement Captions (Details) - Inventory (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Inventory [Abstract]
Wafers and other purchased materials	$ 9,908	$ 12,553
Work-in-process	2,408	1,071
Finished goods	6,860	11,305
Total inventory	$ 19,176	$ 24,929

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Note 5. Restricted Cash (Details) (USD $) In Millions, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Restricted Cash Disclosure [Abstract]
Restricted Cash and Cash Equivalents	$ 1.8	$ 1.8

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Unaudited Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Net revenue	$ 54,394	$ 63,905	$ 160,696	$ 172,414
Cost of revenue	23,311	38,423	74,601	95,257
Gross profit	31,083	25,482	86,095	77,157
Operating expenses
Research and development	17,555	26,741	56,528	76,505
Sales and marketing	5,608	12,774	16,817	27,457
General and administrative	5,212	6,007	14,911	21,874
Restructuring costs	1,104	821	1,994	821
Impairment of IP, mask sets and design tools	150		338
Gain on acquisition				(1,417)
Total operating expenses	29,629	46,343	90,588	125,240
Income (loss) from operations	1,454	(20,861)	(4,493)	(48,083)
Gain on sale of development project			1,079
Gain on sale (impairment) of privately-held investments, net	(163)		(163)
Interest and other income (expense), net	(91)	299	721	1,032
Income (loss) before income taxes	1,200	(20,562)	(2,856)	(47,051)
Provision for income taxes	4,178	18,889	9,446	19,520
Net loss	$ (2,978)	$ (39,451)	$ (12,302)	$ (66,571)
Net loss per common share:
Basic (in Dollars per share)	$ (0.09)	$ (1.18)	$ (0.36)	$ (2.02)
Diluted (in Dollars per share)	$ (0.09)	$ (1.18)	$ (0.36)	$ (2.02)
Shares used in computing net loss per share:
Basic (in Shares)	34,518	33,383	34,129	33,032
Diluted (in Shares)	34,518	33,383	34,129	33,032

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Note 9. Intangible Assets

9 Months Ended

Nov. 02, 2013

Disclosure Text Block [Abstract]

Intangible Assets Disclosure [Text Block]

9.             Intangible assets

Intangible assets at the end of each period consisted of the following (in thousands, except for years):

	November 2, 2013
	Gross Value		Accumulated Amortization and Effect of Currency Translation			Net Value		Weighted Average Remaining Amortization Period (Years)
Acquired intangible assets:
Developed technology	$	52,025	$	(38,908	)	$	13,117		3.1
Customer relationships		20,218		(16,730	)		3,488		2.9
Trademarks		2,678		(2,074	)		604		5.1
Non-compete agreements		1,400		(1,400	)		-		-
Purchased IP - amortizing		16,053		(10,603	)		5,450		1.7
Total amortizing		92,374		(69,715	)		22,659		2.8
Purchased IP - not yet deployed		9,037		-			9,037
Total intangibles	$	101,411	$	(69,715	)	$	31,696

	February 2, 2013
	Gross Value		Accumulated Amortization and Effect of Currency Translation			Net Value		Weighted Average Remaining Amortization Period (Years)
Acquired intangible assets:
Developed technology	$	52,025	$	(34,567	)	$	17,458		3.6
Customer relationships		20,218		(15,782	)		4,436		3.6
Trademarks		2,678		(1,983	)		695		5.9
Non-compete agreements		1,400		(1,400	)		-		-
Purchased IP – amortizing		15,854		(7,970	)		7,884		2.4
Total amortizing		92,175		(61,702	)		30,473		3.4
Purchased IP - not yet deployed		6,100		-			6,100
Total intangibles	$	98,275	$	(61,702	)	$	36,573

Acquired intangible assets represent intangible assets acquired through business combinations. Purchased intellectual property (“Purchased IP”) represents intangible assets acquired through direct purchases of licensed technology from vendors which is incorporated into our products.

Purchased IP – not yet deployed relates to Purchased IP from third parties for our products that are currently in development. We begin amortizing such intellectual property upon the earlier of the beginning of the term of the license agreement, as appropriate, or at the time we begin shipment of the associated products into which such intellectual property is incorporated.

We test long-lived assets, including our intangible assets, for impairment whenever events or changes in circumstances, such as a change in technology, indicate that the carrying value of these assets may not be recoverable.

Amortization expense related to intangible assets was $2.6 million and $8.0 million for the three and nine months ended November 2, 2013, respectively, and $3.1 million and $8.0 million for the three and nine months ended October 27, 2012, respectively.  As of November 2, 2013, we had $9.0 million of Purchased IP, which we have not yet begun to amortize.

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
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Cost of sales	$	2,257	$	2,647	$	6,848	$	6,716
Operating expenses		383		403		1,165		1,208
Total intangibles amortization expense	$	2,640	$	3,050	$	8,013	$	7,924

The estimated future amortization expense of intangible assets with finite lives as of November 2, 2013 is as follows (in thousands): 

Fiscal year	Total
2014 (remaining three months)	$	2,636
2015		8,800
2016		6,574
2017		3,912
2018		636
Thereafter		101
Total	$	22,659

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Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012
Cash flows from operating activities:
Net loss	$ (12,302)	$ (66,571)
Depreciation and amortization	14,764	17,082
Stock-based compensation	5,387	8,078
Provision for excess and obsolete inventory	613	3,613
Provision for sales returns, discounts, and doubtful accounts	250	174
Deferred income taxes	3,491	18,098
Loss on disposal of equipment	19	142
Accretion of contributed leasehold improvements	(30)	(189)
Gain on acquisition		(1,417)
Gain on sale of development project	(1,079)
Gain on sale of privately-held investment	(137)
Impairment of IP, mask sets, design tools and other assets	338
Impairment loss on privately-held investment	300
Changes in operating assets and liabilities:
Accounts receivable	(17,859)	(3,456)
Inventory	5,139	2,312
Prepaid expenses and other current assets	3,156	(7,402)
Other non-current assets	1	(2,684)
Accounts payable	3,371	11,296
Accrued compensation and related benefits and other liabilities	1,214	19,003
Income taxes payable	1,619	(758)
Other long-term liabilities	(313)	(2,319)
Net cash provided by (used in) operating activities	8,354	(4,998)
Cash flows from investing activities:
Restricted cash	(2)
Purchases of marketable securities	(17,732)	(15,264)
Sales and maturities of marketable securities	13,240	72,339
Purchases of software, equipment and leasehold improvements	(6,534)	(2,754)
Proceeds from sale of development project, net of transaction fees	1,971
Proceeds from sale of privately-held investment	2,137
Cash paid in connection with acquisition		(39,740)
Repayment of note receivable	450
Purchases of IP	(4,046)	(6,767)
Net cash provided by (used in) investing activities	(10,516)	7,814
Cash flows from financing activities:
Net proceeds from exercises of employee stock options and stock purchase rights	1,448	2,536
Excess tax benefits from share-based compensation		(345)
Net cash provided by financing activities	1,448	2,191
Effect of foreign exchange rate changes on cash and cash equivalents	(178)	41
Net increase (decrease) in cash and cash equivalents	(892)	5,048
Cash and cash equivalents at beginning of period	51,218	44,283
Cash and cash equivalents at end of period	50,326	49,331
Supplemental disclosure of cash flow information:
Cash paid for income taxes	$ 5,149	$ 2,177

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Note 9. Intangible Assets (Details) - Intangible Assets Schedule (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Nov. 02, 2013	Feb. 02, 2013
Acquired intangible assets:
Gross Value	$ 101,411	$ 98,275
Cumulative Impairment	(69,715)	(61,702)
Accumulated Amortization and Effect of Currency Translation	31,696	36,573
Purchased Intellectual Property - not yet deployed [Member]
Acquired intangible assets:
Gross Value	9,037
Accumulated Amortization and Effect of Currency Translation	9,037
Purchased IP-Amortizing [Member]
Acquired intangible assets:
Gross Value		6,100
Accumulated Amortization and Effect of Currency Translation		6,100
Developed Technology Rights [Member]
Acquired intangible assets:
Gross Value	52,025	52,025
Cumulative Impairment	(38,908)	(34,567)
Accumulated Amortization and Effect of Currency Translation	13,117	17,458
Net Value	3 years 36 days	3 years 219 days
Customer Relationships [Member]
Acquired intangible assets:
Gross Value	20,218	20,218
Cumulative Impairment	(16,730)	(15,782)
Accumulated Amortization and Effect of Currency Translation	3,488	4,436
Net Value	2 years 328 days	3 years 219 days
Trademarks [Member]
Acquired intangible assets:
Gross Value	2,678	2,678
Cumulative Impairment	(2,074)	(1,983)
Accumulated Amortization and Effect of Currency Translation	604	695
Net Value	5 years 36 days	5 years 328 days
Noncompete Agreements [Member]
Acquired intangible assets:
Gross Value	1,400	1,400
Cumulative Impairment	(1,400)	(1,400)
Purchased IP-Amortizing [Member]
Acquired intangible assets:
Gross Value	16,053	15,854
Cumulative Impairment	(10,603)	(7,970)
Accumulated Amortization and Effect of Currency Translation	5,450	7,884
Net Value	1 year 255 days	2 years 146 days
Acquired Intangible Assets Subtotal [Member]
Acquired intangible assets:
Gross Value	92,374	92,175
Cumulative Impairment	(69,715)	(61,702)
Accumulated Amortization and Effect of Currency Translation	$ 22,659	$ 30,473
Net Value	2 years 292 days	3 years 146 days

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Unaudited Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Current assets
Cash and cash equivalents	$ 50,326	$ 51,218
Short-term marketable securities	11,412	17,455
Restricted cash	1,771	1,769
Accounts receivable, net	39,256	21,648
Inventory	19,176	24,929
Deferred tax assets	4,683	5,868
Prepaid expenses and other current assets	8,845	13,578
Total current assets	135,469	136,465
Long-term marketable securities	24,574	14,253
Software, equipment and leasehold improvements, net	16,398	17,106
Intangible assets, net	31,696	36,573
Deferred tax assets, net of current portion	43	2,681
Long-term investments and notes receivable, net of current portion	4,144	8,943
Other non-current assets	4,803	4,810
Total assets	217,127	220,831
Current liabilities
Accounts payable	12,580	11,046
Accrued compensation and related benefits	8,381	8,773
Accrued liabilities	19,749	20,018
Total current liabilities	40,710	39,837
Income taxes payable	19,514	17,723
Long-term deferred tax liabilities	481	804
Other long-term liabilities	215	449
Total liabilities	60,920	58,813
Shareholders' equity
Preferred stock	0	0
Common stock and additional paid-in capital	481,905	475,070
Treasury stock	(85,941)	(85,941)
Accumulated other comprehensive income	746	1,090
Accumulated deficit	(240,503)	(228,201)
Total shareholders' equity	156,207	162,018
Total liabilities and shareholders' equity	$ 217,127	$ 220,831

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Note 7. Composition of Certain Financial Statement Captions (Details) - Prepaid Expenses and Other Current Assets (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Prepaid Expenses and Other Current Assets [Abstract]
Prepayments for inventory	$ 2,535	$ 2,542
Amounts due from seller related to DTV acquisition	1,436	4,519
Note receivable	300	750
Assets held for sale		623
Other current assets	4,574	5,144
Total prepaid expenses and other current assets	$ 8,845	$ 13,578

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Note 18. Segment and Geographical Information (Details) - Net Revenue To Each Significant Country Based on the Ship-to Location (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012		Nov. 02, 2013	Oct. 27, 2012
Note 18. Segment and Geographical Information (Details) - Net Revenue To Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue To Each Significant Country	$ 54,394	$ 63,905		$ 160,696	$ 172,414
China, including Hong Kong [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue To Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue To Each Significant Country	22,641	26,108		78,816	88,651
Thailand [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue To Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue To Each Significant Country	9,326	1,697		18,065	3,519
Hungary [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue To Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue To Each Significant Country	2,680	14,601	[1]	12,349	26,759
United States [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue To Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue To Each Significant Country	9,903	4,211		19,886	10,100
Rest of World [Member]
Note 18. Segment and Geographical Information (Details) - Net Revenue To Each Significant Country Based on the Ship-to Location [Line Items]
Net Revenue To Each Significant Country	$ 9,844	$ 17,288		$ 31,580	$ 43,385

[1] Accounted for less than 10% of our period net revenue.

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Note 17. Income taxes (Details) (USD $)	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Note 17. Income taxes (Details) [Line Items]
Income Tax Expense (Benefit)	$ 4,178,000	$ 18,889,000	$ 9,446,000	$ 19,520,000
Provision for Income Taxes			9,400,000	19,500,000
Scenario, Forecast [Member] | Minimum [Member]
Note 17. Income taxes (Details) [Line Items]
Unrecognized Tax Benefits, Period Increase (Decrease)			0
Scenario, Forecast [Member] | Maximum [Member]
Note 17. Income taxes (Details) [Line Items]
Unrecognized Tax Benefits, Period Increase (Decrease)			$ 13,200,000

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Note 7. Composition of Certain Financial Statement Captions (Tables)

9 Months Ended

Nov. 02, 2013

Disclosure Text Block Supplement [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	November 2, 2013			February 2, 2013
Accounts receivable	$	39,803		$	21,943
Allowance for doubtful accounts		(547	)		(295	)
Total accounts receivable, net	$	39,256		$	21,648

Schedule of Inventory, Current [Table Text Block]

	November 2, 2013		February 2, 2013
Wafers and other purchased materials	$	9,908	$	12,553
Work-in-process		2,408		1,071
Finished goods		6,860		11,305
Total inventory	$	19,176	$	24,929

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	November 2, 2013		February 2, 2013
Prepayments for inventory	$	2,535	$	2,542
Amounts due from seller related to DTV acquisition		1,436		4,519
Note receivable		300		750
Assets held for sale		-		623
Other current assets		4,574		5,144
Total prepaid expenses and other current assets	$	8,845	$	13,578

Property, Plant and Equipment [Table Text Block]

	Estimated Useful Lives (years)			November 2, 2013			February 2, 2013
Software		2		$	27,481		$	24,216
Equipment	2	to	5		19,939			17,688
Office equipment and furniture		2			8,764			8,338
Leasehold improvements	1	to	6		3,161			3,097
Total					59,345			53,339
Less: Accumulated depreciation and amortization					(42,947	)		(36,233	)
Total software, equipment and leasehold improvements, net				$	16,398		$	17,106

Schedule of Accrued Liabilities [Table Text Block]

	November 2, 2013		February 2, 2013
Income taxes	$	4,335	$	4,508
License fees		1,037		3,553
Deferred revenue		5,213		3,099
Rebates		4,656		1,475
Royalties		1,117		951
Warranty		1,000		1,447
Restructuring		869		1,023
Settlements		75		425
Other accrued liabilities		1,447		3,537
Total accrued liabilities	$	19,749	$	20,018

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Note 18. Segment and Geographical Information

9 Months Ended

Nov. 02, 2013

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

18.           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 reportable segment.  Our operating segment consists of our geographically based entities in the United States, Israel and Singapore.  Our chief operating decision-maker reviews consolidated financial information, accompanied by information about revenue by product group, target market and geographic region.  We do not assess the performance of our geographic regions on other measures of income or expense or net loss.

We sell our products into four primary target markets, which are the DTV market, home networking market, set-top box market, and home control market. We also have license revenue, included in the license and other market, which we receive from the license of our technology to third parties. Starting with the first quarter of fiscal 2014, we have defined the DTV market to include all products that are sold into digital televisions as well as other adjacent markets using chipset products that are designed for video post-processing and have eliminated the prosumer and industrial audio/video market as a separate revenue segment as the majority of demand accruing from these sales will be represented in the DTV market segment. Also starting with the first quarter of fiscal 2014, we have defined the set-top box market to include all set-top box products delivering IP streaming video, including hybrid versions of these products, and we have eliminated the connected media player market as a separate revenue market as the majority of demand accruing from these sales will be represented in the set-top box market segment.

The following table sets forth net revenue attributable to each target market (in thousands):

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
DTV	$	13,078	$	30,140	$	43,358	$	61,766
Home Networking		19,409		19,735		59,147		62,991
Set-top Box		9,595		9,059		30,390		34,534
Home Control		5,952		4,803		16,390		11,209
License and Other		6,360		168		11,411		1,914
Net revenue	$	54,394	$	63,905	$	160,696	$	172,414

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
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Asia	$	38,566	$	38,514	$	117,032	$	119,432
North America		10,076		4,799		20,736		11,990
Europe		5,752		17,589		19,720		34,101
Other regions		-		3,003		3,208		6,891
Net revenue	$	54,394	$	63,905	$	160,696	$	172,414

The following table sets forth net revenue to each significant country based on the ship-to location of customers (in thousands):

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
China, including Hong Kong	$	22,641	$	26,108	$	78,816	$	88,651
Thailand		9,326		1,697		18,065		3,519
Hungary		2,680		14,601		12,349		26,759
United States		9,903		4,211		19,886		10,100
Rest of the world		9,844		17,288		31,580		43,385
Net revenue	$	54,394	$	63,905	$	160,696	$	172,414

The following table sets forth the major customers that accounted for 10% or more of our net revenue:

	Three Months Ended						Nine Months Ended
	November 2, 2013			October 27, 2012			November 2, 2013		October 27, 2012
TP Vision		*			23	%		*		16	%
Flextronics		*			10	%		*		11	%
Cal-Comp Electronics		12	%		*			*		*

* Accounted for less than 10% of our period net revenue.

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Note 4. Derivative Financial Instruments (Details) - Effects of Derivative Instruments on Income and Accumulated Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Effects of Derivative Instruments on Income and Accumulated Other Comprehensive Income [Abstract]
Gains Reclassified from Accumulated Other Comprehensive Income into Earnings - Amount	Interest and other income, net	Interest and other income, net	Interest and other income, net	Interest and other income, net
	$ 45	$ 386	$ 296	$ (44)

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Note 18. Segment and Geographical Information (Details) - Net Revenue Attributable to Each Target Market (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Segment Reporting Information [Line Items]
Net revenue by segments	$ 54,394	$ 63,905	$ 160,696	$ 172,414
DTV [Member]
Segment Reporting Information [Line Items]
Net revenue by segments	13,078	30,140	43,358	61,766
Home Networking [Member]
Segment Reporting Information [Line Items]
Net revenue by segments	19,409	19,735	59,147	62,991
IPTV Hybrid [Member]
Segment Reporting Information [Line Items]
Net revenue by segments	9,595	9,059	30,390	34,534
Home Control And Energy Management [Member]
Segment Reporting Information [Line Items]
Net revenue by segments	5,952	4,803	16,390	11,209
License And Other [Member]
Segment Reporting Information [Line Items]
Net revenue by segments	$ 6,360	$ 168	$ 11,411	$ 1,914

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Note 8. Business Combinations (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended		9 Months Ended
	May 04, 2012	May 31, 2012	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Note 8. Business Combinations (Details) [Line Items]
Business Combination, Bargain Purchase, Gain Recognized, Amount					$ 1,417,000
Trident Microsystems, Inc. [Member]
Note 8. Business Combinations (Details) [Line Items]
Business Combination, Consideration Transferred	38,200,000				38,210,000
Business Combination, Bargain Purchase, Gain Recognized, Amount		1,400,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual			9,800,000	27,800,000	36,700,000	54,400,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual			(2,900,000)	1,200,000	(4,400,000)	(900,000)
Business Combination, Acquisition Related Costs						$ 4,000,000

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Note 13. Sale of IP Licenses (Details) (Contingent Upon Meeting Milestones [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
	Nov. 02, 2013
Scenario, Forecast [Member]
Note 13. Sale of IP Licenses (Details) [Line Items]
Licenses Revenue	$ 8.8
Scenario, Forecast [Member] | Addtional Milestones Met [Member]
Note 13. Sale of IP Licenses (Details) [Line Items]
Licenses Revenue	4.9
First Two Milestones Met [Member]
Note 13. Sale of IP Licenses (Details) [Line Items]
Revenue Recognition, Milestone Method, Revenue Recognized	$ 3.9

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Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Amortized Cost and Estimated Fair Value of Cash Equivalents and Marketable Securities by Maturity (USD $) In Thousands, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Amortized Cost and Estimated Fair Value of Cash Equivalents and Marketable Securities by Maturity [Line Items]
Book Value	$ 43,988	$ 53,448
Fair Value	44,364	54,019
Due in 1 Year or Less [Member]
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Amortized Cost and Estimated Fair Value of Cash Equivalents and Marketable Securities by Maturity [Line Items]
Book Value	19,704	39,595
Fair Value	19,790	39,766
Due in Greater Than 1 Year [Member]
Note 2. Cash, Cash Equivalents and Marketable Securities (Details) - Amortized Cost and Estimated Fair Value of Cash Equivalents and Marketable Securities by Maturity [Line Items]
Book Value	24,284	13,853
Fair Value	$ 24,574	$ 14,253

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Note 15. Net Loss Per Share (Tables)

9 Months Ended

Nov. 02, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended						Nine Months Ended
	November 2, 2013			October 27, 2012			November 2, 2013			October 27, 2012
Net loss, as reported	$	(2,978	)	$	(39,451	)	$	(12,302	)	$	(66,571	)
Weighted-average common shares outstanding-basic		34,518			33,383			34,129			33,032
Dilutive effect of employee stock plans		-			-			-			-
Weighted-average common shares outstanding- diluted		34,518			33,383			34,129			33,032
Net loss per share – basic	$	(0.09	)	$	(1.18	)	$	(0.36	)	$	(2.02	)
Net loss per share – diluted	$	(0.09	)	$	(1.18	)	$	(0.36	)	$	(2.02	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Stock options excluded because the effect of including would be anti-dilutive		18		149		21		157
Stock options excluded because exercise price is in excess of average stock price		4,078		5,380		4,477		5,460
Restricted stock awards and units excluded because the effect of including would be anti-dilutive		75		147		44		87
Restricted stock awards and units excluded because potential buyback shares exceed weighted average restricted stock units and awards outstanding		230		68		410		290

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Note 16. Equity Incentive Plans and Employee Benefits (Tables)

9 Months Ended

Nov. 02, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of Options			Weighted Average Exercise Price Per Option
As of February 2, 2013		5,055,787		$	12.50
Granted		-			-
Exercised		(9,949	)		3.26
Cancelled or forfeited		(459,834	)		11.18
As of May 4, 2013		4,586,004		$	12.65
Granted		368,680			4.59
Exercised		(8,878	)		2.21
Cancelled or forfeited		(728,912	)		15.07
As of August 3, 2013		4,216,894		$	11.57
Granted		-			-
Exercised		(1,387	)		0.95
Cancelled or forfeited		(223,542	)		12.21
As of November 2, 2013		3,991,965		$	11.60
Options exercisable as of:
November 2, 2013		3,065,559		$	12.76

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

	Number of RSAs			Weighted Average Grant- Date Fair Value (Per RSA)		Aggregate Value
As of February 2, 2013		163,311		$	8.71	$	1,422,439
Granted		-			-
Vested		(6,588	)		9.50
Cancelled		(13,175	)		9.50
As of May 4, 2013		143,548		$	8.60	$	1,234,513
Granted		-			-
Vested		(10,980	)		6.83
Cancelled		-			-
As of August 3, 2013		132,568		$	8.75	$	1,159,970
Granted		-			-
Vested		-			-
Cancelled		-			-
As of November 2, 2013		132,568		$	8.75	$	1,159,970

	Number of RSUs			Weighted Average Grant-Date Fair Value (Per RSU)		Aggregate Value
As of February 2, 2013		632,262		$	6.28	$	3,970,605
Granted		37,675			4.65
Vested		(44,024	)		6.14
Cancelled		(75,582	)		6.39
As of May 4, 2013		550,331		$	6.16	$	3,390,039
Granted		143,536			5.12
Vested		(56,952	)		6.23
Cancelled		(49,411	)		6.36
As of August 3, 2013		587,504		$	5.88	$	3,455,878
Granted		4,675			5.14
Vested		(49,527	)		6.38
Cancelled		(14,347	)		5.84
As of November 2, 2013		528,305		$	5.83	$	3,080,018

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Cost of revenue	$	64	$	131	$	214	$	380
Research and development expenses		778		1,375		2,721		4,346
Sales and marketing expenses		365		458		1,029		1,412
General and administrative expenses		461		539		1,423		1,940
Total stock-based compensation	$	1,668	$	2,503	$	5,387	$	8,078

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Denmark	$	53	$	47	$	162	$	142
Taiwan		32		38		109		85
(*) The Netherlands		75		92		327		92
(*) Germany		12		-		66		-
Total matching contributions	$	172	$	177	$	664	$	319

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Note 8. Business Combinations

9 Months Ended

Nov. 02, 2013

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

8.            Business Combinations

On May 4, 2012, we completed our acquisition of certain assets from Trident Microsystems, Inc. and certain of its subsidiaries (collectively referred to as “Trident”) used in or related to Trident’s digital television and PC television businesses (the “DTV business”) for a purchase price of $38.2 million, subject to adjustments based on the closing asset balance of the DTV business, plus the assumption of certain employee related liabilities pursuant to an Asset Purchase Agreement dated March 23, 2012 (the “Purchase Agreement”). Trident filed for voluntarily petition under Chapter 11 bankruptcy on January 4, 2012. In April 2012, we were selected as the successful bidder to acquire Trident’s DTV business. The purchase price of the Trident acquisition was paid in cash.

In connection with the Trident acquisition, we acquired all of Trident’s DTV business products, certain licensed intellectual property rights, specified tangible assets and other assets specified in the Purchase Agreement. We also acquired the right to use certain facilities of Trident under short-term facilities use agreements for facilities located in Shanghai and Beijing, China, Germany, The Netherlands, Taiwan and California. We hired approximately 320 employees whose services are used in the DTV business. We also entered into a transition services agreement with Trident under which Trident agreed to provide certain services to us following the closing. The purchaser of Trident's set-top box business also agreed to provide transition support services to us.

The addition of Trident's industry-leading DTV media processor System-on-a-Chip, or SoC, products for next-generation Internet-enabled digital televisions has significantly expanded our served available market. DTV products complement our existing IPTV set-top box and connected media player SoC solutions and augment our ability to develop innovative solutions for the anticipated convergence of IP-video delivery across any device within the home.

In connection with this acquisition, we obtained a valuation of the assets acquired in order to allocate the purchase price. The total purchase price was allocated to the net tangible and identified intangible assets based upon fair values as of May 4, 2012. The fair value of the tangible assets and identifiable intangible assets acquired, net of liabilities assumed, exceeded the purchase price by $1.4 million, which was recognized in the consolidated statements of operations as a gain on acquisition in fiscal 2013.

The purchase price in the transaction was allocated as follows (in thousands, except years):

	Purchase price (in thousands)			Estimated useful Life (in years)
Purchased tangible assets and liabilities
Accounts receivable	$	13,410
Inventory		13,643
Prepaid inventory		2,895
Prepaid third party support		2,466
Deposit with contract manufacturer		3,543
Property and equipment		2,553			1.5
Mask sets		1,438			3
Net liabilities		(1,489	)
Purchased identifiable intangible assets:
Developed technology		1,168			3
Gain on acquisition		(1,417	)
Cash consideration	$	38,210
Other consideration		-
Total consideration issued in the acquisition	$	38,210

The results of operations of the DTV business have been included in the consolidated results of operations from May 4, 2012.

For the three and nine months ended November 2, 2013, net sales of approximately $9.8 million and $36.7 million, respectively, and an operating loss of approximately $2.9 million and $4.4 million, respectively, attributable to the DTV business, were included in the condensed consolidated results of operations. For the three and nine months ended October 27, 2012, net sales of approximately $27.8 million and $54.4 million, respectively, and an operating profit of approximately $1.2 million and operating loss of $0.9 million, respectively, attributable to the DTV business, were included in the condensed consolidated results of operations.

The following unaudited pro forma consolidated results of operations give effect to the acquisition of the DTV business as if it had occurred as of the beginning of the fiscal years of the periods presented. The unaudited pro forma consolidated results of operations are provided for informational purposes only and do not purport to represent actual consolidated results of operations had the acquisition occurred on the date assumed, nor are these financial statements necessarily indicative of future consolidated results of operations. We expect to incur costs and realize benefits associated with integrating the operations of the DTV business. The unaudited pro forma consolidated results of operations do not reflect the cost of any integration activities or any benefits that may result from operating efficiencies or revenue synergies. The pro forma consolidated results of operations for the nine months ended October 27, 2012 include non-recurring adjustments of $4.0 million of direct acquisition costs (in thousands, except per share data):

	Three Months Ended						Nine Months Ended
	November 2, 2013			October 27, 2012			November 2, 2013			October 27, 2012
Net revenue	$	54,394		$	63,905		$	106,696		$	195,358
Net loss		(2,978	)		(39,451	)		(12,302	)		(85,116	)
Basic and diluted net loss per share		(0.09	)		(1.18	)		(0.36	)		(2.58	)

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Note 11. Restructuring costs (Details) (USD $)	3 Months Ended				9 Months Ended		12 Months Ended	3 Months Ended			9 Months Ended	12 Months Ended	3 Months Ended			12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended		3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended						12 Months Ended	3 Months Ended			12 Months Ended
	Nov. 02, 2013	Aug. 03, 2013	May 04, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012	Feb. 02, 2013	Nov. 02, 2013 Cost of Sales [Member]	Aug. 03, 2013 Cost of Sales [Member]	May 04, 2013 Cost of Sales [Member]	Nov. 02, 2013 Cost of Sales [Member]	Feb. 02, 2013 Cost of Sales [Member]	Nov. 02, 2013 Operating Expense [Member]	Aug. 03, 2013 Operating Expense [Member]	May 04, 2013 Operating Expense [Member]	Feb. 02, 2013 Operating Expense [Member]	Nov. 02, 2013 Operating Expense [Member] Minimum [Member]	Feb. 02, 2013 Operating Expense [Member] Minimum [Member]	Nov. 02, 2013 Operating Expense [Member] Maximum [Member]	Feb. 02, 2013 Operating Expense [Member] Maximum [Member]	Feb. 02, 2013 Cost of Goods Sold [Member]	Nov. 02, 2013 Research and Development Expense [Member]	Aug. 03, 2013 Research and Development Expense [Member]	Feb. 02, 2013 Research and Development Expense [Member]	Nov. 02, 2013 Selling and Marketing Expense [Member]	Feb. 02, 2013 Selling and Marketing Expense [Member]	Nov. 02, 2013 General and Administrative Expense [Member]	Aug. 03, 2013 General and Administrative Expense [Member]	Feb. 02, 2013 General and Administrative Expense [Member]	Nov. 02, 2013 Headcount Expense [Member] Minimum [Member]	Feb. 02, 2013 Headcount Expense [Member] Minimum [Member]	Nov. 02, 2013 Headcount Expense [Member] Maximum [Member]	Feb. 02, 2013 Headcount Expense [Member] Maximum [Member]	Nov. 02, 2013 Canada and California [Member] Facility Closing [Member]	Nov. 02, 2013 Employee Severance [Member]	Nov. 02, 2013 Employee Severance [Member]	Aug. 03, 2013 Employee Severance [Member]	May 04, 2013 Employee Severance [Member]	May 04, 2013 Employee Severance [Member]	Dec. 31, 2013 Employee Severance [Member]	Nov. 02, 2013 Facility Closing [Member]	Aug. 03, 2013 Facility Closing [Member]	Aug. 03, 2013 Facility Closing [Member]	Dec. 31, 2013 Facility Closing [Member]
Note 11. Restructuring costs (Details) [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	17	8	17				114
Restructuring and Related Cost, Incurred Cost							$ 3,200,000			$ 33,000		$ 100,000			$ 210,000	$ 3,100,000					$ 0			$ 2,400,000		$ 400,000			$ 400,000
Restructuring Costs																	400,000	400,000	500,000	500,000										4,000,000	14,000,000	4,500,000	14,500,000
Restructuring Charges	1,104,000			821,000	1,994,000	821,000		0	100,000		40,000,000		1,100,000	700,000								800,000	100,000		100,000		200,000	500,000						100,000	968,000	1,000,000	234,000	250,000	200,000	2,167,000	137,000	446,000	500,000	8,000
Severance Costs		$ 200,000

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Note 8. Business Combinations (Tables)

9 Months Ended

Nov. 02, 2013

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

	Purchase price (in thousands)			Estimated useful Life (in years)
Purchased tangible assets and liabilities
Accounts receivable	$	13,410
Inventory		13,643
Prepaid inventory		2,895
Prepaid third party support		2,466
Deposit with contract manufacturer		3,543
Property and equipment		2,553			1.5
Mask sets		1,438			3
Net liabilities		(1,489	)
Purchased identifiable intangible assets:
Developed technology		1,168			3
Gain on acquisition		(1,417	)
Cash consideration	$	38,210
Other consideration		-
Total consideration issued in the acquisition	$	38,210

Business Acquisition, Pro Forma Information [Table Text Block]

	Three Months Ended						Nine Months Ended
	November 2, 2013			October 27, 2012			November 2, 2013			October 27, 2012
Net revenue	$	54,394		$	63,905		$	106,696		$	195,358
Net loss		(2,978	)		(39,451	)		(12,302	)		(85,116	)
Basic and diluted net loss per share		(0.09	)		(1.18	)		(0.36	)		(2.58	)

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Note 4. Derivative Financial Instruments (Details) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013 USD ($)	Oct. 27, 2012 USD ($)	Nov. 02, 2013 USD ($)	Oct. 27, 2012 USD ($)	Nov. 02, 2013 ILS	Feb. 02, 2013 USD ($)	Feb. 02, 2013 ILS
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	$ 3.4		$ 3.4			$ 10.4
Derivative, Notional Amount (in New Shekels)					12.3		40.0
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ 0.1	$ 0.4	$ 0.3	$ (0.1)

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Note 11. Restructuring costs

9 Months Ended

Nov. 02, 2013

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure [Text Block]

11.          Restructuring costs

In fiscal 2013, as a result of significant expansion inour infrastructure and operational activities in connection with purchases and acquisitions that took place between fiscal years 2008 and 2013, and in response to certain redundancies, underperforming operations and delays in programs and product releases, we implemented a restructuring program to realign our global operating expenses with our new business conditions, and to improve efficiency, competitiveness and profitability. In fiscal 2013, we reduced our workforce by approximately 114 employees, implemented plans to scale down our reliance on contractors and consultants, impaired the unamortized value of certain software intellectual property licenses, which we no longer intend to use, initiated the closure of our facilities in Canada, Hong Kong and Japan and reduced our discretionary spending across all operational areas. We recorded $3.2 million in restructuring charges in fiscal 2013. Of the total restructuring charges recorded in fiscal 2013, less than $0.1 million were reflected in cost of revenue and $3.1 million were reflected in operating expenses ($0.0 million in cost of revenue, $2.4 million in research and development, $0.4 million in sales and marketing and $0.4 million in general and administrative). Costs relating to facilities closure or lease commitment are recognized when the facility has been exited. Terminations costs are recognized when the costs are deemed both probable and estimable. We anticipate that these restructuring measures will reduce ongoing headcount expenses in research and development, sales and marketing and general and administrative by approximately $14.0 million to $14.5 million annually and other additional operational expenses by $0.4 million to $0.5 million annually which is in line with our original estimates. Our restructuring measures could negatively impact our revenues and results of operations in the future as a result of less employees developing future products and working to sell our products.

In the first quarter of fiscal 2014, we recorded restructuring charges of approximately $0.2 million related to a workforce reduction of 17 employees with related charges to cost of revenue and operating expenses of $33,000 and $210,000, respectively. In the second quarter of fiscal 2014, and as part of our ongoing restructuring plan, we incurred restructuring charges of approximately $0.5 million net, related to a contingent liability under our lease obligation in Canada and $0.2 million in severance-related charges that resulted from a workforce reduction of eight employees. Of the total restructuring charges and exit costs recorded in the second quarter of fiscal 2014, there were no restructuring charges reflected in cost of revenue and $0.7 million were reflected in operating expenses ($0.1 million in research and development, $0.1 million in sales and marketing and $0.5 million in general and administrative). In the third quarter of fiscal 2014, and as part of our continuing effort to reduce expenses, we incurred restructuring charges of approximately $1.1 million, of which $1.0 million was related to a workforce reduction of 17 employees across several geographic regions and $0.1 million was related to the termination of a lease agreement and related costs in Canada. Of the total restructuring charges recorded in the third quarter of fiscal 2014, there were no restructuring charges reflected in cost of revenue and $1.1 million were reflected in operating expenses ($0.0 million in cost of revenue, $0.8 million in research and development, $0.1 million in sales and marketing and $0.2 million in general and administrative).

Expenses recognized for restructuring activities impacting our operating expenses are presented in the “Restructuring costs” line of the condensed consolidated statements of operations. We anticipate that these restructuring measures will reduce ongoing headcount expenses in research and development, sales and marketing and general and administrative by approximately $4.0 million to $4.5 million annually and other additional operational expenses by $0.4 million to $0.5 million annually. Our restructuring measures could negatively impact our revenues and results of operations in the future as a result of less employees developing future products and working to sell our products.

The following table summarizes the restructuring costs, outstanding payable balance and cumulative restructuring costs (in thousands):

	Employee Severance			Impairment of Long-Lived Assets			Facility Exit Costs			Total			Cumulative Restructuring Costs
Charges in fiscal 2013	$	2,167		$	1,089		$	8		$	3,264		$	3,264
Cash payments		(1,153	)		-			-			(1,153	)		-
Non-cash items		-			(1,089	)		-			(1,089	)		-
Balance at February 2, 2013		1,014			-			8			1,022			3,264
Charges for the three months ended May 4, 2013*		250			-			-			250			250
Cash payments		(882	)		-			(5	)		(887	)		-
Non-cash items		-			-			-			-			-
Balance at May 4, 2013	$	382		$	-		$	3		$	385		$	3,514
Charges for the three months ended August 3, 2013		234			-			446			680			680
Cash payments		(551	)		-			(14	)		(565	)		-
Non-cash items		-			-			-			-			-
Balance at August 3, 2013	$	65		$	-		$	435		$	500		$	4,194
Charges for the three months ended November 2, 2013		968			-			137			1,105			1,105
Cash payments		(235	)		-			(501	)		(736	)		-
Non-cash items		-			-			-			-			-
Balance at November 2, 2013	$	798		$	-		$	70		$	869		$	5,299

* The amount above includes $40,000 of certain restructuring charges that were recorded in the cost of revenue.

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Note 16. Equity Incentive Plans and Employee Benefits (Details) - Contributions to Retirement Pension Plans (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Nov. 02, 2013		Oct. 27, 2012		Nov. 02, 2013		Oct. 27, 2012
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	$ 172		$ 177		$ 664		$ 319
Denmark [Member]
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	53		47		162		142
Taiwan [Member]
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	32		38		109		85
The Netherlands [Member]
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	75	[1]	92	[1]	327	[1]	92
Germany [Member]
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	$ 12	[1]		[1]	$ 66	[1]

[1] As a result of our acquisition of the DTV business, we added operations in The Netherlands and Germany in May 2013.

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Note 7. Composition of Certain Financial Statement Captions

9 Months Ended

Nov. 02, 2013

Disclosure Text Block Supplement [Abstract]

Supplemental Balance Sheet Disclosures [Text Block]

7.             Composition of certain financial statement captions

The following tables summarize the main items comprising certain financial statement captions as of November 2, 2013 and February 2, 2013 (in thousands):

Accounts receivable 

	November 2, 2013			February 2, 2013
Accounts receivable	$	39,803		$	21,943
Allowance for doubtful accounts		(547	)		(295	)
Total accounts receivable, net	$	39,256		$	21,648

Inventory 

	November 2, 2013		February 2, 2013
Wafers and other purchased materials	$	9,908	$	12,553
Work-in-process		2,408		1,071
Finished goods		6,860		11,305
Total inventory	$	19,176	$	24,929

Prepaid expenses and other current assets

	November 2, 2013		February 2, 2013
Prepayments for inventory	$	2,535	$	2,542
Amounts due from seller related to DTV acquisition		1,436		4,519
Note receivable		300		750
Assets held for sale		-		623
Other current assets		4,574		5,144
Total prepaid expenses and other current assets	$	8,845	$	13,578

Software, equipment and leasehold improvements

	Estimated Useful Lives (years)			November 2, 2013			February 2, 2013
Software		2		$	27,481		$	24,216
Equipment	2	to	5		19,939			17,688
Office equipment and furniture		2			8,764			8,338
Leasehold improvements	1	to	6		3,161			3,097
Total					59,345			53,339
Less: Accumulated depreciation and amortization					(42,947	)		(36,233	)
Total software, equipment and leasehold improvements, net				$	16,398		$	17,106

Software, equipment and leasehold improvement depreciation and amortization expense for the three months ended November 2, 2013 and October 27, 2012 was $1.8 million and $2.9 million, respectively, and for the nine months ended November 2, 2013 and October 27, 2012 was $6.8 million and $8.0 million, respectively.

Accrued liabilities

	November 2, 2013		February 2, 2013
Income taxes	$	4,335	$	4,508
License fees		1,037		3,553
Deferred revenue		5,213		3,099
Rebates		4,656		1,475
Royalties		1,117		951
Warranty		1,000		1,447
Restructuring		869		1,023
Settlements		75		425
Other accrued liabilities		1,447		3,537
Total accrued liabilities	$	19,749	$	20,018

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Note 2. Cash, Cash Equivalents and Marketable Securities

9 Months Ended

Nov. 02, 2013

Disclosure Text Block Supplement [Abstract]

Cash, Cash Equivalents, and Marketable Securities [Text Block]

2.             Cash, cash equivalents and marketable securities

Cash, cash equivalents and marketable securities consist of the following (in thousands):

	November 2, 2013						February 2, 2013
	Book Value		Net Unrealized Gains (Losses)		Fair Value		Book Value		Net Unrealized Gains (Losses)		Fair Value
Corporate bonds	$	33,841	$	342	$	34,183	$	30,642	$	537	$	31,179
Money market funds		8,377		-		8,377		21,032		-		21,032
Municipal bonds and notes		509		8		517		515		14		529
Fixed income mutual funds		1,261		26		1,287		1,259		20		1,279
Total cash equivalents and marketable securities	$	43,988	$	376	$	44,364	$	53,448	$	571	$	54,019
Cash on hand held in the United States						1,954						1,441
Cash on hand held overseas						39,994						27,466
Total cash on hand						41,948						28,907
Total cash, cash equivalents and marketable securities					$	86,312					$	82,926
Reported as:
Cash and cash equivalents						50,326						51,218
Short-term marketable securities						11,412						17,455
Long-term marketable securities						24,574						14,253
					$	86,312					$	82,926

The amortized cost and estimated fair value of cash equivalents and marketable securities, by contractual maturity, are as follows (in thousands): 

	November 2, 2013				February 2, 2013
	Book Value		Fair Value		Book Value		Fair Value
Due in one year or less	$	19,704	$	19,790	$	39,595	$	39,766
Due in greater than one year		24,284		24,574		13,853		14,253
Total	$	43,988	$	44,364	$	53,448	$	54,019

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Note 7. Composition of Certain Financial Statement Captions (Details) - Software, Equipment and Leasehold Improvements (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Nov. 02, 2013	Feb. 02, 2013
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	1 year 6 months
Property, plant and equipment balances	$ 59,345	$ 53,339
Less: Accumulated depreciation and amortization	(42,947)	(36,233)
Total software, equipment and leasehold improvements, net	16,398	17,106
Software and Software Development Costs [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	2 years
Property, plant and equipment balances	27,481	24,216
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment balances	19,939	17,688
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	2 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	5 years
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	2 years
Property, plant and equipment balances	8,764	8,338
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment balances	$ 3,161	$ 3,097
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	1 year
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	6 years

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Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies (USD $) In Thousands, unless otherwise specified	Nov. 03, 2013	Feb. 02, 2013
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies [Line Items]
Equity investments	$ 4,144	$ 6,443
Notes Receivable	300	3,250
Total equity investments and notes receivable	4,444	9,693
Issuer B [Member]
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies [Line Items]
Equity investments	2,000	2,000
Notes Receivable	300	750
Issuer C [Member]
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies [Line Items]
Equity investments	1,000	1,000
Issuer D [Member]
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies [Line Items]
Equity investments	1,000	1,000
Issuer E [Member]
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies [Line Items]
Equity investments		300
Issuer F [Member]
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies [Line Items]
Equity investments		2,000
Issuer G [Member]
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies [Line Items]
Equity investments	144	143
Issuer H [Member]
Note 6. Investments In and Notes Receivable from Privately Held Companies (Details) - Value of Investments In and Notes Receivable From Privately Held Companies [Line Items]
Notes Receivable		$ 2,500

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Note 11. Restructuring costs (Tables)

9 Months Ended

Nov. 02, 2013

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs [Table Text Block]

	Employee Severance			Impairment of Long-Lived Assets			Facility Exit Costs			Total			Cumulative Restructuring Costs
Charges in fiscal 2013	$	2,167		$	1,089		$	8		$	3,264		$	3,264
Cash payments		(1,153	)		-			-			(1,153	)		-
Non-cash items		-			(1,089	)		-			(1,089	)		-
Balance at February 2, 2013		1,014			-			8			1,022			3,264
Charges for the three months ended May 4, 2013*		250			-			-			250			250
Cash payments		(882	)		-			(5	)		(887	)		-
Non-cash items		-			-			-			-			-
Balance at May 4, 2013	$	382		$	-		$	3		$	385		$	3,514
Charges for the three months ended August 3, 2013		234			-			446			680			680
Cash payments		(551	)		-			(14	)		(565	)		-
Non-cash items		-			-			-			-			-
Balance at August 3, 2013	$	65		$	-		$	435		$	500		$	4,194
Charges for the three months ended November 2, 2013		968			-			137			1,105			1,105
Cash payments		(235	)		-			(501	)		(736	)		-
Non-cash items		-			-			-			-			-
Balance at November 2, 2013	$	798		$	-		$	70		$	869		$	5,299

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Note 14. Commitments and Contingencies (Details) (USD $)	0 Months Ended	3 Months Ended			9 Months Ended			9 Months Ended	3 Months Ended		3 Months Ended				9 Months Ended
	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012	Apr. 28, 2012	Nov. 02, 2013	Oct. 27, 2012	Feb. 02, 2013	Nov. 02, 2013 Early Termination [Member]	Nov. 02, 2013 Early Termination [Member]	Aug. 03, 2013 Early Termination [Member]	Oct. 27, 2012 Second Licensed Technology Audit Settlement [Member]	Aug. 03, 2013 Design Tool Licences [Member]	Nov. 02, 2013 Design Tool Licences [Member]	Jun. 30, 2013 Design Tool Licences [Member]	Nov. 02, 2013 Trident and NXP [Member]
Note 14. Commitments and Contingencies (Details) [Line Items]
Loss Contingency, Estimate of Possible Loss										$ 800,000
Loss Contingency, Loss in Period									800,000
Purchase Commitment, Remaining Minimum Amount Committed		16,600,000			16,600,000								11,900,000
Long-term Purchase Commitment, Amount												12,900,000
Purchase Obligation, Amount Purchased														1,300,000
Purchase Obligation, Remaining Amount														11,600,000
Contractual Obligation		0			0
Direct Operating Cost, Royalty Expense		500,000	300,000		1,600,000	1,500,000
Proceeds from Grantors					5,100,000
Percentage of Royalties		4.50%			4.50%
Accrued Royalties		1,000,000			1,000,000
Litigation Settlement, Amount	6,300,000			1,400,000											1,800,000
Asset Impairment Charges															400,000
Prepaid Expense and Other Assets, Current		8,845,000			8,845,000		13,578,000								1,400,000
Payments for Other Operating Activities											300,000
Licensing Period Under Negotiation			3 years
Licensing Fees Under Negotiation	3,500,000		3,500,000			3,500,000
Loss Contingency Accrual		100,000			100,000
Potential Early Termination Fees								300,000
Monthly Lease Payments								45,000
Operating Leases, Future Minimum Payments Due		$ 10,477,000			$ 10,477,000			$ 1,100,000

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Note 9. Intangible Assets (Details) - Amortization Expense of Intangible Assets (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Note 9. Intangible Assets (Details) - Amortization Expense of Intangible Assets [Line Items]
Intangibles amortization expense	$ 2,640	$ 3,050	$ 8,013	$ 7,924
Cost of Sales [Member]
Note 9. Intangible Assets (Details) - Amortization Expense of Intangible Assets [Line Items]
Intangibles amortization expense	2,257	2,647	6,848	6,716
Operating Expense [Member]
Note 9. Intangible Assets (Details) - Amortization Expense of Intangible Assets [Line Items]
Intangibles amortization expense	$ 383	$ 403	$ 1,165	$ 1,208

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Note 14. Commitments and Contingencies

9 Months Ended

Nov. 02, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

14.          Commitments and contingencies

Commitments

Operating leases

Our primary facility is located in Milpitas, California. We also lease facilities in China, Denmark, France, Germany, The Netherlands, Hong Kong, Singapore, Taiwan, Vietnam, South Korea and Israel. We also lease vehicles under non-cancelable leases.

As further described in Note 11, in connection with certain restructuring measures adopted in fiscal 2013, we early terminated our non-cancelable lease agreement in Canada. In the second quarter of fiscal 2014, we could reasonably estimate the outcome and as a result, we reserved $0.8 million of cost accrual for that matter. During the third quarter of fiscal 2014, we entered into a settlement of all outstanding disputes between the parties and as a result of the settlement we paid approximately $0.8 million to the landlord. In the third quarter of fiscal 2014, pursuant to our restructuring plan, we early terminated a facility lease for our location in southern California. See Note 11 for further information regarding the restructuring plan.

Future minimum annual payments under non-cancelable operating leases as of November 2, 2013 are as follows (in thousands):

Fiscal Year	Amount
2014 (remaining three months)	$	1,438
2015		4,356
2016		2,898
2017		1,641
2018		144
Total minimum lease payments	$	10,477

Purchase commitments

We place non-cancelable orders to purchase semiconductor products from our suppliers on an eight to twelve week lead-time basis.  As of November 2, 2013, the total amount of outstanding non-cancelable purchase orders was approximately $16.6 million.

Design Tools

During the second quarter of fiscal 2014, we entered into an agreement with a vendor to purchase $12.9 million of design tools. In June 2013, approximately $1.3 million of related licenses were delivered to us. The remaining $11.6 million of licenses will be delivered in December 2013. Payments on the licenses are being made on a quarterly basis from June 2013 through March 2016. As of November 2, 2013 remaining payments for the licenses totaled $11.9 million.

Indemnifications

In certain limited circumstances, we have agreed, and may agree in the future, to indemnify certain customers against patent infringement claims from third parties related to our intellectual property. In these limited circumstances, the terms and conditions of sale generally limit the scope of the available remedies to a variety of industry-standard methods including, but not limited to, a right to control the defense or settlement of any claim, procure the right for continued usage, and a right to replace or modify the infringing products to make them non-infringing. To date, we have not incurred or accrued any significant costs related to any claims under such indemnification provisions.

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 explicitly stated in our charter documents or in our indemnification agreements and will depend on the facts and circumstances that arise out of any future claims, the overall maximum amount of the obligations cannot be reasonably estimated. The fair value of these obligations was zero on our consolidated balance sheet as of November 2, 2013.

Royalties

We pay royalties for the right to sell certain products under various license agreements.  During the three and nine months ended November 2, 2013, we recorded royalty expense of $0.5 million and $1.6 million, respectively, and $0.3 million and $1.5 million for the three and nine months ended October 27, 2012, respectively, which was recorded to cost of revenue.

Our wholly-owned subsidiary, Sigma Designs Israel SDI Ltd. (formerly, CopperGate Communication 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 November 2, 2013, we had obtained grants from the OCS aggregating to $5.1 million for certain of our research and development projects in Israel. We completed the most recent of these projects in fiscal 2013. We are obligated to pay royalties to the OCS, amounting up to 4.5% of the sales of certain products up to an amount equal to grants received, plus LIBOR-based interest. As of November 2, 2013, our remaining obligation under these programs was $1.0 million.

Contingencies

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, could be time consuming, result in costly litigation, require significant amounts of management time, result in the diversion of significant operational resources or cause us to enter into royalty or licensing agreements which, if required, may not be available on terms favorable to us or at all. If an unfavorable outcome were to occur against us, there exists the possibility of a material adverse impact on our financial position and results of operations for the period in which the unfavorable outcome occurs and, potentially, in future periods.

In March 2013, we filed a motion to intervene in (and become a party to) U.S. Ethernet Innovations, LLC (USEI) v. AT&T Mobility, LLC (“AT&T”) and others, Case No. 5-10-cv-05254 CW, currently pending in the U.S. District Court for the Northern District of California, or the Litigation. In this Litigation, USEI filed a patent infringement complaint alleging that various AT&T products infringe USEI patents that have now expired, including alleging that set-top boxes deployed by AT&T that contain our SoCs infringe a USEI patent. USEI has made similar allegations that other defendants infringe this and other now expired USEI patents in this Litigation and other related cases. Further, other interveners have already been added to this Litigation and other related cases. USEI seeks monetary damages, attorney’s fees, and an injunction against AT&T, other defendants and other interveners. AT&T, other defendants and other interveners have denied the allegations of infringement made by USEI and asserted that USEI’s patents are invalid, unenforceable, and not infringed. The Court granted our motion to intervene. As a result, we filed a declaratory judgment complaint. USEI answered this complaint and asserted counter-claims against us. We have responded to those counter-claims. The parties are now conducting discovery in the matter. The trial date for the Litigation has been set for January 5, 2015.

In April 2013, we initiated a lawsuit against Trident and NXP Semiconductors Netherlands B.V. (“NXP”) Adv. Aoc. No. 13-50940 (CSS) in the United States Bankruptcy Court for the District of Delaware. Trident filed for voluntarily petition under Chapter 11 bankruptcy on January 4, 2012. In May 2012, we entered into an Asset Purchase Agreement (“APA”) with Trident to acquire certain assets of its digital television and PC television businesses, as further discussed in Note 8. In connection with the APA, we entered into a Transition Services Agreement (“TSA”) under which Trident agreed to provide certain transition services to us following the closing, including management of billings and collections with their former customers and payment to former vendors, among others. We are seeking recovery of $1.8 million that we paid to Trident to specifically pay to NXP, on our behalf pursuant to the TSA, for purchases of inventory that Trident, on our behalf, made from NXP during the month of June 2012. NXP claimed they had not received payment of $1.8 million from Trident and reduced such amount from our inventory prepayment balance with NXP. Both Trident and NXP have filed motions to dismiss our claims and we have answered their motions. The Court has not yet ruled on their motions to dismiss. During the third quarter of fiscal 2014, we could reasonably estimate our potential range of loss on this matter. Accordingly, we have recognized an impairment of approximately $0.4 million on this receivable which is recorded in the “General and administrative” line of the condensed consolidated statements of operations. The net receivable of $1.4 million is presented in “Prepaid expenses and other current assets” in the accompanying condensed consolidated balance sheet at November 2, 2013.

Third-party licensed technology

We license technologies from various third parties and incorporate that technology into our products. Some of these licenses require us to pay royalties and others require us to report sales activities so that royalties may be collected from our customers. From time to time, we are audited by licensors of these technologies for compliance with the terms of these licenses. In the first quarter of fiscal 2013, we settled one such audit for $1.4 million. In the third quarter of fiscal 2013, we settled another audit for $6.3 million. In addition, in the third quarter of fiscal 2013, we settled another audit for $0.3 million payable in four quarterly equal installments commencing in September 2012. Concurrently, we negotiated a license agreement for this technology for a period of three years for an amount of $3.5 million, also payable in four quarterly equal installments commencing in September 2012. The full amount of the license fees was recorded as purchased IP in fiscal 2013 and will be amortized over the license term. On December 4, 2012, we received a letter from another technology licensor notifying us of their intent to audit our compliance with the terms of a license agreement that we use in our DTV business. On February 28, 2013, we received a letter from another technology licensor notifying us of their intent to audit our compliance with the terms of a license agreement that we use in our set-top box business. On July 16, 2013, we received a letter from another technology licensor notifying us of their intent to audit our compliance with the terms of a license agreement that we use in our DTV business. During the third quarter of fiscal 2014, we could reasonably estimate our exposure to these audits and as a result, we have accrued $0.1 million of penalties which was included in the sales and marketing expenses in the condensed consolidated statements of operations. As of November 2, 2013, the end of our third fiscal quarter to which this report relates, we believe we were in compliance with our license agreements. However, we could be required to make additional payments as a result of pending or future compliance audits. For license agreements where we have royalty obligations, we charge any settlement payments that we make in connection with audits to cost of revenue. For license agreements where we simply have reporting obligations, we treat any settlement payments as penalties and charge the amounts to operating expenses in sales and marketing

 Early termination lease agreement for office-space

In connection with our restructuring measures adopted during the third and fourth quarters of fiscal 2013, as further described in Note 11, and due to the lack of solvency and liquidity of our wholly-owned subsidiary in Canada (“Sigma Canada”), we decided to close down the operations of Sigma Canada. On February 23, 2013, our Board of Directors approved the filing for bankruptcy of Sigma Canada, which we filed on May 30, 2013. Sigma Canada has appointed a Trustee in Canada to provide legal advice and assistance throughout the bankruptcy process. Based on our assessment of the financial condition and obligations of Sigma Canada, outstanding obligations beyond the filing date for bankruptcy were mainly related to the minimum monthly payment obligations under a non-cancellable operating lease agreement for office space. In accordance with the provisions of the lease agreement and communication with the landlord’s agent, if Sigma Canada exercised its early termination provision, Sigma Canada would be liable for an early termination penalty of $0.3 million and monthly lease payments of approximately $45,000 from May 2013 through May 2015 for a total exposure of up to $1.1 million. Were Sigma to elect to sublease the premises instead of exercising the option to terminate the lease, potential exposure could be reduced if an agreement were entered into in a reasonable timeframe and on reasonable terms.  We estimated, based on market data available to us, that the potential exposure could be approximately of $0.8 million adjusted for recovery from the bankruptcy estate. During the third quarter of fiscal 2014, we entered into a settlement of all outstanding disputes between the parties and as a result of the settlement we paid $0.8 million to the landlord. 

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Note 10. Product Warranty

9 Months Ended

Nov. 02, 2013

Product Warranties Disclosures [Abstract]

Product Warranty Disclosure [Text Block]

10.          Product warranty

In general, we sell products with a one-year limited warranty that our products will be free from defects in materials and workmanship.  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 software support costs and is included in accrued liabilities on the accompanying condensed consolidated balance sheets.

Details of the change in accrued warranty as of November 2, 2013 and October 27, 2012 are as follows (in thousands):

Three Months Ended	Balance Beginning of Period		Additions and Adjustments		Deductions			Balance End of Period
November 2, 2013	$	1,040	$	175	$	(215	)	$	1,000
October 27, 2012	$	1,157	$	373	$	(203	)	$	1,327

Nine Months Ended	Balance Beginning of Period		Additions and Adjustments		Deductions			Balance End of Period
November 2, 2013	$	1,447	$	213	$	(660	)	$	1,000
October 27, 2012	$	1,326	$	729	$	(728	)	$	1,327

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Note 15. Net Loss Per Share (Details) - Basic and Diluted Net Loss Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Basic and Diluted Net Loss Per Share [Abstract]
Net loss, as reported (in Dollars)	$ (2,978)	$ (39,451)	$ (12,302)	$ (66,571)
Weighted-average common shares outstanding-basic	34,518	33,383	34,129	33,032
Weighted-average common shares outstanding- diluted	34,518	33,383	34,129	33,032
Net loss per share – basic (in Dollars per share)	$ (0.09)	$ (1.18)	$ (0.36)	$ (2.02)
Net loss per share – diluted (in Dollars per share)	$ (0.09)	$ (1.18)	$ (0.36)	$ (2.02)

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Note 17. Income taxes

9 Months Ended

Nov. 02, 2013

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

17.           Income taxes

We recorded a provision for income taxes of $4.2 million and $18.9 million for the three months ended November 2, 2013 and October 27, 2012, respectively. The provision for income taxes was $9.4 million and $19.5 million for the nine months ended November 2, 2013 and October 27, 2012, respectively. The decrease in tax expense for the three and nine months ended November 2, 2013 is primarily attributable to the establishment of a valuation allowance against our U.S. federal deferred tax assets during the three months ended October 27, 2012. During the three and nine months ended November 2, 2013, we were unable to reasonably project our annual effective tax rate, and therefore computed our provision for income taxes based on year-to-date actual financial results. Included in our provision for income taxes are foreign exchange gains or losses on unsettled income tax liabilities.

We benefit from tax incentives granted by local tax authorities in certain foreign jurisdictions. The Economic Development Board of Singapore granted development and expansion incentives to our wholly owned subsidiary in Singapore in 2008 for a period of four years, contingent on meeting specified requirements, which ended March 1, 2012. The Company is currently in negotiation with the Economic Development Board for its operations plan in Singapore and is not benefiting from the incentives during the three months and nine months ended November 2, 2013.

Management estimates that it is reasonably possible that the liability for gross unrecognized tax benefits, including accrued interest and penalties, could decrease within the next 12 months by an amount in the range of $0 to $13.2 million. The gross unrecognized tax benefits subject to potential decrease primarily involve uncertainties related to an acquisition and tax incentives in various jurisdictions where ongoing audits and negotiations may conclude.

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Note 15. Net Loss Per Share

9 Months Ended

Nov. 02, 2013

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

15.           Net loss per share

Basic and diluted net loss per share for the periods presented is computed by dividing net loss by the weighted average number of common shares outstanding.

The following table sets forth the basic and diluted net loss per share computed for the three and nine months ended November 2, 2013 and October 27, 2012 (in thousands, except per share amounts):

	Three Months Ended						Nine Months Ended
	November 2, 2013			October 27, 2012			November 2, 2013			October 27, 2012
Net loss, as reported	$	(2,978	)	$	(39,451	)	$	(12,302	)	$	(66,571	)
Weighted-average common shares outstanding-basic		34,518			33,383			34,129			33,032
Dilutive effect of employee stock plans		-			-			-			-
Weighted-average common shares outstanding- diluted		34,518			33,383			34,129			33,032
Net loss per share – basic	$	(0.09	)	$	(1.18	)	$	(0.36	)	$	(2.02	)
Net loss per share – diluted	$	(0.09	)	$	(1.18	)	$	(0.36	)	$	(2.02	)

The following table sets forth the excluded anti-dilutive and excluded potentially dilutive securities for the three and nine months ended November 2, 2013 and October 27, 2012 (in thousands):

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Stock options excluded because the effect of including would be anti-dilutive		18		149		21		157
Stock options excluded because exercise price is in excess of average stock price		4,078		5,380		4,477		5,460
Restricted stock awards and units excluded because the effect of including would be anti-dilutive		75		147		44		87
Restricted stock awards and units excluded because potential buyback shares exceed weighted average restricted stock units and awards outstanding		230		68		410		290

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Document And Entity Information	9 Months Ended
	Dec. 10, 2013	Nov. 02, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	SIGMA DESIGNS INC
Document Type	10-Q
Current Fiscal Year End Date	--02-02
Entity Common Stock, Shares Outstanding		34,602,547
Amendment Flag	false
Entity Central Index Key	0000790715
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 10, 2013
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3

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Note 16. Equity Incentive Plans and Employee Benefits

9 Months Ended

Nov. 02, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

16.           Equity incentive plans and employee benefits

Stock option awards

Activity of our combined stock option plans for the nine months ended November 2, 2013 is summarized as follows:

	Number of Options			Weighted Average Exercise Price Per Option
As of February 2, 2013		5,055,787		$	12.50
Granted		-			-
Exercised		(9,949	)		3.26
Cancelled or forfeited		(459,834	)		11.18
As of May 4, 2013		4,586,004		$	12.65
Granted		368,680			4.59
Exercised		(8,878	)		2.21
Cancelled or forfeited		(728,912	)		15.07
As of August 3, 2013		4,216,894		$	11.57
Granted		-			-
Exercised		(1,387	)		0.95
Cancelled or forfeited		(223,542	)		12.21
As of November 2, 2013		3,991,965		$	11.60
Options exercisable as of:
November 2, 2013		3,065,559		$	12.76

Restricted stock awards

Activity of our restricted stock awards, or RSAs, for the nine months ended November 2, 2013 is summarized as follows:

	Number of RSAs			Weighted Average Grant- Date Fair Value (Per RSA)		Aggregate Value
As of February 2, 2013		163,311		$	8.71	$	1,422,439
Granted		-			-
Vested		(6,588	)		9.50
Cancelled		(13,175	)		9.50
As of May 4, 2013		143,548		$	8.60	$	1,234,513
Granted		-			-
Vested		(10,980	)		6.83
Cancelled		-			-
As of August 3, 2013		132,568		$	8.75	$	1,159,970
Granted		-			-
Vested		-			-
Cancelled		-			-
As of November 2, 2013		132,568		$	8.75	$	1,159,970

Restricted stock units

Activity of our restricted stock units, or RSUs, for the nine months ended November 2, 2013 is summarized as follows:

	Number of RSUs			Weighted Average Grant-Date Fair Value (Per RSU)		Aggregate Value
As of February 2, 2013		632,262		$	6.28	$	3,970,605
Granted		37,675			4.65
Vested		(44,024	)		6.14
Cancelled		(75,582	)		6.39
As of May 4, 2013		550,331		$	6.16	$	3,390,039
Granted		143,536			5.12
Vested		(56,952	)		6.23
Cancelled		(49,411	)		6.36
As of August 3, 2013		587,504		$	5.88	$	3,455,878
Granted		4,675			5.14
Vested		(49,527	)		6.38
Cancelled		(14,347	)		5.84
As of November 2, 2013		528,305		$	5.83	$	3,080,018

Employee stock purchase plan

As of November 2, 2013, we had reserved a total of 2,500,000 shares of common stock for issuance under the 2010 Purchase Plan, of which 1,895,613 shares had been issued.

Stock-based compensation expense

The following table sets forth the total stock-based compensation expense that is included in each functional line item in the condensed consolidated statements of operations (in thousands):

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Cost of revenue	$	64	$	131	$	214	$	380
Research and development expenses		778		1,375		2,721		4,346
Sales and marketing expenses		365		458		1,029		1,412
General and administrative expenses		461		539		1,423		1,940
Total stock-based compensation	$	1,668	$	2,503	$	5,387	$	8,078

401(k) tax deferred savings plan

We maintain a 401(k) tax deferred savings plan for the benefit of qualified employees who are U.S. based. The matching program was suspended effective December 1, 2012. The matching contributions we made to the 401(k) tax deferred savings plan totaled zero for the three and nine months ended November 2, 2013 and $0.2 million and $0.7 million for the three and nine months ended October 27, 2012, respectively.

Endowment insurance pension plan

Related to our acquisition of our DTV business in May 2013, we added operations in Shanghai, China, where we are required to provide pension insurance to our Shanghai employees. The matching contributions to the pension insurance totaled $0.5 million and $1.6 million for the three months and nine months ended November 2, 2013, respectively, and totaled $0.5 million and $0.6 million for the three and nine months ended October 27, 2012.

Retirement pension plans

The following table summarizes our contributions to retirement pension plans for the benefits of qualified employees based in the following countries (in thousands):

	Three Months Ended				Nine Months Ended
	November 2, 2013		October 27, 2012		November 2, 2013		October 27, 2012
Denmark	$	53	$	47	$	162	$	142
Taiwan		32		38		109		85
(*) The Netherlands		75		92		327		92
(*) Germany		12		-		66		-
Total matching contributions	$	172	$	177	$	664	$	319

(*) As a result of our acquisition of the DTV business, we added operations in The Netherlands and Germany in May 2013.

Severance plan

We maintain a severance plan for several Israeli employees pursuant to Israel’s Severance Pay Law based upon the most recent salary of the employees multiplied by the number of year’s employment. Accrued severance liability as of November 2, 2013 and October 27, 2013 totaled $1.3 million, respectively, offset by $1.2 million of severance employee funds.

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Note 10. Product Warranty (Details) - Change in Accrued Warranty (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Change in Accrued Warranty [Abstract]
Balance beginning of period	$ 1,040	$ 1,157	$ 1,447	$ 1,326
Additions	175	373	213	729
Deductions	(215)	(203)	(660)	(728)
Balance end of period	$ 1,000	$ 1,327	$ 1,000	$ 1,327

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Note 9. Intangible Assets (Details) - Future Amortization Expense of Intangible Assets (Purchased IP-Amortizing [Member], USD $) In Thousands, unless otherwise specified	Nov. 02, 2013
Purchased IP-Amortizing [Member]
Note 9. Intangible Assets (Details) - Future Amortization Expense of Intangible Assets [Line Items]
2014 (remaining three months)	$ 2,636
2015	8,800
2016	6,574
2017	3,912
2018	636
Thereafter	101
Total	$ 22,659