Sigma Designs (SIGM) 10-Q 9 Jun 15 2016 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	2-May-15	Jun. 02, 2015
Entity Registrant Name	SIGMA DESIGNS INC
Entity Central Index Key	790715
Current Fiscal Year End Date	-29
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		35,498,649
Document Type	10-Q
Document Period End Date	2-May-15
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Amendment Flag	FALSE

Unaudited_Condensed_Consolidat

Unaudited Condensed Consolidated Balance Sheets (USD $)	2-May-15	Jan. 31, 2015
Current assets
Cash and cash equivalents	$69,334,000	$83,502,000
Short-term marketable securities	8,448,000	6,347,000
Restricted cash	400,000	400,000
Accounts receivable, net of allowances of $1,689 as of May 2, 2015 and $1,502 as of January 31, 2015	31,562,000	26,415,000
Inventory	24,446,000	20,445,000
Deferred tax assets	3,386,000	3,319,000
Prepaid expenses and other current assets	9,110,000	8,805,000
Total current assets	146,686,000	149,233,000
Long-term marketable securities	9,176,000	4,249,000
Software, equipment and leasehold improvements, net	20,612,000	21,594,000
Intangible assets, net	23,190,000	24,642,000
Deferred tax assets, net of current portion	587,000	687,000
Long-term investments, net of current portion	3,268,000	3,267,000
Other non-current assets	1,656,000	1,661,000
Total assets	205,175,000	205,333,000
Current liabilities
Accounts payable	23,094,000	21,207,000
Accrued compensation and related benefits	7,952,000	6,806,000
Accrued liabilities	17,460,000	22,894,000
Total current liabilities	48,506,000	50,907,000
Income taxes payable	8,037,000	7,573,000
Long-term deferred tax liabilities	635,000	741,000
Other long-term liabilities	2,521,000	2,822,000
Total liabilities	59,699,000	62,043,000
Commitments and contingencies (Note 9)
Shareholders’ equity
Preferred stock; no par value, authorized 2,000,000 shares, none issued and outstanding	0	0
Common stock and additional paid-in capital; no par value; 100,000,000 shares authorized; 40,093,404 issued and 35,434,261 outstanding as of May 2, 2015 and 39,973,689 issued and 35,314,546 outstanding as of January 31, 2015	496,149,000	493,550,000
Treasury stock, at cost, 4,659,143 shares as of May 2, 2015 and January 31, 2015	-88,198,000	-88,198,000
Accumulated other comprehensive loss	-1,142,000	-1,111,000
Accumulated deficit	-261,333,000	-260,951,000
Total shareholders’ equity	145,476,000	143,290,000
Total liabilities and shareholders’ equity	$205,175,000	$205,333,000

Unaudited_Condensed_Consolidat1

Unaudited Condensed Consolidated Balance Sheets (Parentheticals) (USD $)	2-May-15	Jan. 31, 2015
In Thousands, except Share data, unless otherwise specified
Accounts Receivable, allowances	$1,689	$1,502
Preferred stock, par value (in dollars per share)	$0	$0
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$0	$0
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	40,093,404	39,973,689
Common stock, shares outstanding (in shares)	35,434,261	35,314,546
Treasury stock, shares (in shares)	4,659,143	4,659,143

Unaudited_Condensed_Consolidat2

Unaudited Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	2-May-15	3-May-14
Net revenue	$55,912	$36,873
Cost of revenue	26,564	16,648
Gross profit	29,348	20,225
Operating expenses
Research and development	16,313	17,103
Sales and marketing	5,811	5,450
General and administrative	5,772	5,031
Restructuring costs	9	974
Impairment of IP, mask sets and design tools	33	110
Total operating expenses	27,938	28,668
Income (loss) from operations	1,410	-8,443
Interest and other income (expense), net	671	-52
Income (loss) before income taxes	2,081	-8,495
Provision for income taxes	2,463	1,419
Net loss	($382)	($9,914)
Net loss per common share:
Basic (in dollars per share)	($0.01)	($0.29)
Diluted (in dollars per share)	($0.01)	($0.29)
Shares used in computing net loss per share:
Basic (in shares)	35,395	34,367
Diluted (in shares)	35,395	34,367

Unaudited_Condensed_Consolidat3

Unaudited Condensed Consolidated Statements of Comprehensive Loss (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Net loss	($382)	($9,914)
Other comprehensive (loss) income:
Currency translation adjustments, net of $0 tax during the three months ended May 2, 2015 and May 3, 2014	-12	208
Unrealized (losses) gains on marketable securities, net of $0 tax during the three months ended May 2, 2015 and May 3, 2014	-19	46
Other comprehensive (loss) income	-31	254
Comprehensive loss	($413)	($9,660)

Unaudited_Condensed_Consolidat4

Unaudited Condensed Consolidated Statements of Comprehensive Loss (Parentheticals) (USD $)	3 Months Ended
	2-May-15	3-May-14
Currency translation adjustments, tax	$0	$0
Unrealized (losses) gains on marketable securities, tax	$0	$0

Unaudited_Condensed_Consolidat5

Unaudited Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
	2-May-15	3-May-14
Cash flows from operating activities
Net loss	($382,000)	($9,914,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	5,294,000	5,412,000
Stock-based compensation	1,734,000	1,488,000
Provision for excess and obsolete inventory	1,071,000	364,000
Provision for (recovery of) sales returns, discounts and doubtful accounts	187,000	-105,000
Deferred income taxes	-73,000	57,000
Impairment of IP, mask sets and design tools	33,000	110,000
Tax effect related to share awards	-712,000	-620,000
Excess tax expense from stock-based compensation	712,000	620,000
Other non-cash activities	32,000
Changes in operating assets and liabilities:
Accounts receivable	-5,335,000	3,976,000
Inventory	-5,071,000	566,000
Prepaid expenses and other current assets	-315,000	838,000
Other non-current assets	4,000	3,000
Accounts payable	2,201,000	-4,389,000
Accrued liabilities, compensation and related benefits	-807,000	662,000
Income taxes payable	-3,363,000	-2,939,000
Other long-term liabilities	114,000	-2,414,000
Net cash used in operating activities	-4,676,000	-6,285,000
Cash flows from investing activities
Restricted cash		235,000
Purchases of marketable securities	-7,113,000
Sales and maturities of marketable securities	66,000	6,558,000
Purchases of software, equipment and leasehold improvements	-1,673,000	-818,000
Purchases of IP	-1,576,000	-1,319,000
Repayment of note receivable		60,000
Net cash (used in) provided by investing activities	-10,296,000	4,716,000
Cash flows from financing activities
Excess tax benefit from stock-based compensation	712,000	620,000
Net proceeds from exercise of employee stock options and stock purchase rights	153,000	1,000
Net cash provided by financing activities	865,000	621,000
Effect of foreign exchange rate changes on cash and cash equivalents	-61,000	53,000
Net decrease in cash and cash equivalents	-14,168,000	-895,000
Cash and cash equivalents, beginning of period	83,502,000	64,326,000
Cash and cash equivalents, end of period	69,334,000	63,431,000
Supplemental disclosure of cash flow information
Cash paid for income taxes	$5,120,000	$3,694,000

Note_1_Organization_and_Summar

Note 1 - Organization and Summary of Significant Accounting Policies	3 Months Ended
	2-May-15
Notes to Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	1.             Organization and summary of significant accounting policies
	Organization and nature of operations:
	Sigma Designs, Inc. (referred to collectively in these unaudited condensed consolidated financial statements as “Sigma,” “we,” “our”, “the Company” and “us”) is a provider of intelligent media platforms for use in the home entertainment and control markets.  We focus on integrated semiconductor solutions that serve as the foundation for some of the world’s leading consumer products, including televisions, set-top boxes, and consumer electronics sold in the Internet of Things Devices (“IoT Devices”) and Media Connectivity markets. A majority 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 target markets which are the Smart TV, Set-top Box, Media Connectivity and IoT Devices markets. We derive a portion of our revenue from licensing and other markets, including licenses, software development kits, engineering support services for hardware and software, engineering development for customization of chipsets and other accessories.
	Basis of presentation:
	The unaudited condensed consolidated financial statements include the accounts of Sigma Designs, Inc. and its wholly-owned subsidiaries.  All significant intercompany balances and transactions have been eliminated upon consolidation. We operate and report quarterly financial results that consist of 13 weeks and end on the last Saturday of the period. The first quarter of fiscal 2016 and fiscal 2015 ended on May 2, 2015 (91 days) and May 3, 2014 (91 days), respectively.
	The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”).  They do not 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 January 31, 2015, included in our fiscal 2015 Annual Report on Form 10-K, as filed with the SEC on April 15, 2015, referred to as our fiscal 2015 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 May 2, 2015 and January 31, 2015, the consolidated results of our operations for the three months ended May 2, 2015 and May 3, 2014, and the consolidated cash flows for the three months ended May 2, 2015 and May 3, 2014.  The results of operations for the three months ended May 2, 2015 are not necessarily indicative of the results to be expected for future quarters or the full year.
	There have been no significant changes in our critical accounting policies during the three months ended May 3, 2015, as compared to the critical accounting policies described in our Annual Report on Form 10-K for the year ended January 31, 2015. For a complete summary of our significant accounting policies, refer to Note 1, "Organization and Summary of Significant Accounting Policies”, in Part II, Item 8 of our fiscal 2015 Annual Report.
	Recent accounting
	p
	ronouncements
	Recent accounting pronouncements expected to impact our operations that are not yet effective are summarized as follows:
	In August 2014, the FASB issued Accounting Standards Update No. 2014-15,
	Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern
	(ASU 2014-15), to provide guidance on management’s responsibility in evaluating whether there is substantial doubt about a company’s ability to continue as a going concern and to provide related footnote disclosures. ASU 2014-15 is effective for the Company beginning in the first quarter of 2016 with early adoption permitted. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial statements.
	In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update No. 2014-09,
	Revenue from Contracts with Customers
	(Topic 606) (“ASU 2014-09”), which amends the existing accounting standards for revenue recognition. ASU 2014-09 is based on principles that govern the recognition of revenue at an amount an entity expects to be entitled when products are transferred to customers. The FASB recently announced plans to defer the effective adoption date by one year. Based on the aforementioned deferral, ASU 2014-09 will be effective for us beginning in its first quarter of fiscal 2019. Early adoption is not permitted. The new revenue standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption. The Company is currently evaluating the impact of adopting the new revenue standard on its consolidated financial statements.

Note_2_Cash_Cash_Equivalents_a

Note 2 - Cash, Cash Equivalents and Marketable Securities	3 Months Ended
	2-May-15
Notes to Financial Statements
Cash, Cash Equivalents, and Marketable Securities [Text Block]	2.             Cash, cash equivalents and marketable securities
	As of May 2, 2015 and January 31, 2015, we had $0.4 million of restricted cash related to an office-space operating lease and other transactions, which is not included in the amounts below. Cash, cash equivalents and marketable securities consist of the following (in thousands):
		May						31-Jan
		2						, 201
		, 201						5
		5
		Book Value		Net		Fair Value		Book Value		Net			Fair Value
				Unrealized						Unrealized
				Gains						Gains
				(Losses)						(Losses)
	Corporate bonds	$	16,203	$	134	$	16,337	$	9,130	$	153		$	9,283
	Money market funds		215		-		215		7,650		-			7,650
	Fixed income mutual funds		1,281		6		1,287		1,324		(11	)		1,313
	Total cash equivalents and marketable securities	$	17,699	$	140	$	17,839	$	18,104	$	142		$	18,246
	Cash on hand held in the United States						16,339							12,042
	Cash on hand held overseas						52,780							63,810
	Total cash on hand						69,119							75,852
	Total cash, cash equivalents and marketable securities					$	86,958						$	94,098
	Reported as:
	Cash and cash equivalents					$	69,334						$	83,502
	Short-term marketable securities						8,448							6,347
	Long-term marketable securities						9,176							4,249
						$	86,958						$	94,098
	The amortized cost and estimated fair value of cash equivalents and marketable securities, by contractual maturity, are as follows (in thousands):
		May				31-Jan
		2,				, 201
		201				5
		5
		Book Value		Fair Value		Book Value		Fair Value
	Due in one year or less	$	8,600	$	8,663	$	13,995	$	13,997
	Due in greater than one year		9,099		9,176		4,109		4,249
	Total	$	17,699	$	17,839	$	18,104	$	18,246

Note_3_Fair_Values_of_Assets_a

Note 3 - Fair Values of Assets and Liabilities	3 Months Ended
	2-May-15
Notes to Financial Statements
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 the 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.
	The tables below present the balances of our assets and liabilities measured at fair value on a recurring basis as of May 2, 2015 and January 31, 2015 (in thousands):
			2-May
			, 201
			5
			Fair Value		Quoted Prices		Significant		Significant
					in Active		Observable		Unobservable
					Markets for		Inputs		Inputs
					Identical Assets		(Level 2)		(Level 3)
					(Level 1)
	Corporate bonds		$	16,337	$	16,337	$	-	$	-
	Money market funds			215		215		-		-
	Fixed income mutual funds			1,287		1,287		-		-
	Total cash equivalents and marketable securities			17,839		17,839		-		-
	Restricted cash			400		400		-		-
	Total assets		$	18,239	$	18,239	$	-	$	-
	measured at fair value
			31-Jan
			, 201
			5
			Fair Value		Quoted Prices		Significant		Significant
					in Active		Observable		Unobservable
					Markets for		Inputs		Inputs
					Identical Assets		(Level 2)		(Level 3)
					(Level 1)
	Corporate bonds		$	9,283	$	9,283	$	-	$	-
	Money market funds			7,650		7,650		-		-
	Fixed income mutual funds			1,313		1,313		-		-
	Total cash equivalents and marketable securities			18,246		18,246		-		-
	Restricted cash			400		400		-		-
	Total assets measured at fair value		$	18,646	$	18,646	$	-	$	-
	Assets measured and recorded at fair value on a non-recurring basis
	Our non-marketable 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 of May 2, 2015, we held equity investments in three privately-held venture capital funded technology companies and an equity investment in one joint venture, with an aggregate carrying value of $3.3 million. We did not identify any events or changes in circumstances that may have had a significant adverse effect on the fair value of these investments during the three months ended May 2, 2015 and May 3, 2014. 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.

Note_4_Investments_in_and_Note

Note 4 - Investments in and Notes Receivable from Privately Held Companies	3 Months Ended
	2-May-15
Notes to Financial Statements
Investment Holdings [Text Block]	4.             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:	May		31-Jan
		2		, 201
		, 201		5
		5
	Issuer A	$	2,000	$	2,000
	Issuer B		1,000		1,000
	Issuer C		129		129
	Issuer D		139		138
	Total equity investments	$	3,268	$	3,267
	Equity investments
	During fiscal 2009, we purchased shares of preferred stock in a privately-held venture capital funded technology company (“Issuer A”) 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 A at a cost of $1.0 million. In November 2010, we loaned $1.0 million to Issuer A and received a secured promissory note. During the second quarter of fiscal 2015, the remaining balance of the note receivable from Issuer A was fully repaid.
	In the third quarter of fiscal 2011, we purchased shares of preferred stock in another privately-held technology company (“Issuer B”) 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 C”) at a total investment cost of $1.0 million. In the fourth quarter of fiscal 2014 and the second quarter of fiscal 2015, we recorded impairment charges of $0.3 million and $0.6 million, respectively, on this investment as we concluded the impairment to be other-than-temporary.
	In the third quarter of fiscal 2012, we made an equity investment of $0.1 million in a privately-held joint venture (“Issuer D”).
	We made the aforementioned 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. We analyze each investment quarterly for evidence of impairment.
	Our President and Chief Executive Officer is a member of the Board of Directors of both Issuer A and Issuer B. In the case of Issuer B, the investment transaction was negotiated without the personal involvement of the executive officer who had a personal interest in the transaction.

Note_5_Supplemental_Financial_

Note 5 - Supplemental Financial Information	3 Months Ended
	2-May-15
Notes to Financial Statements
Supplemental Balance Sheet Disclosures [Text Block]	5.             Supplemental financial information
	Inventory consists of the following (in thousands):
		May			31-Jan
		2			, 201
		, 201			5
		5
	Wafers and other purchased materials	$	11,034		$	8,420
	Work-in-process		5,483			3,045
	Finished goods		7,929			8,980
	Total inventory	$	24,446		$	20,445
	Prepaid expenses and other current assets consist of the following (in thousands):
		May			31-Jan
		2			, 201
		, 201			5
		5
	Deposits	$	3,224		$	3,124
	Prepayments for inventory		1,585			1,670
	Prepayments for royalties		762			659
	R&D credit receivable		618			583
	Other current assets		2,921			2,769
	Total prepaid expenses and other current assets	$	9,110		$	8,805
	Software, equipment and leasehold improvements consist of the following (in thousands):
		Estimated Useful Lives							May			31-Jan
		(years)							2			, 201
									, 201			5
									5
	Software					2			$	41,064		$	41,069
	Equipment		1			-		5		23,547			22,168
	Office equipment and furniture					2				8,944			8,693
	Leasehold improvements		1			-		6		2,957			2,874
	Total									76,512			74,804
	Less: Accumulated depreciation and amortization									(55,900	)		(53,210	)
	Total software, equipment and leasehold improvements, net								$	20,612		$	21,594
	Software, equipment and leasehold improvement depreciation and amortization expense for the three months ended May 2, 2015 and May 3, 2014 was $2.9 million and $3.1 million, respectively. We recorded an impairment charge for design tools associated with discontinued products for the three months ended May 2, 2015 and May 3, 2014 of less than $0.1 million and $0.1 million, respectively, which was recorded in operating expenses in the accompanying condensed consolidated statement of operations.
	Accrued liabilities consist of the following (in thousands):
		May			31-Jan
		2			, 201
		, 201			5
		5
	Rebates	$	7,142		$	9,599
	License fees		4,702			4,286
	Income taxes payable, current portion		1,499			5,326
	Royalties		1,235			880
	Warranties		861			864
	Deferred revenue		366			372
	Other accrued liabilities		1,655			1,567
	Total accrued liabilities	$	17,460		$	22,894
	The following table summarizes activity related to accrued rebates (in thousands):
		Three Months Ended
		2-May-15			3-May-14
	Beginning balance	$	9,599		$	3,587
	Charged as a reduction of revenue		4,120			2,733
	Reversal of unclaimed rebates		(807	)		-
	Payments		(5,770	)		(3,479	)
	Ending balance	$	7,142		$	2,841

Note_6_Intangible_Assets

Note 6 - Intangible Assets	3 Months Ended
	2-May-15
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	6.             Intangible assets
	The tables below present the balances of our intangible assets (in thousands, except for years):
		2-May-15
		Gross Value		Impairment			Accumulated			Net Value		Weighted
							Amortization					Average
							and Effect of					Remaining
							Currency					Amortization
							Translation					Period
												(Years)
	Acquired intangible assets:
	Developed technology	$	76,628	$	(24,614	)	$	(45,666	)	$	6,348		1.8
	Customer relationships		50,704		(30,486	)		(18,593	)		1,625		1.5
	Trademarks and other		5,478		-			(5,051	)		427		3.7
	Purchased IP - amortizing		23,442		(5,516	)		(16,125	)		1,801		1
	Total amortizing		156,252		(60,616	)		(85,435	)		10,201		1.7
	Purchased IP - not yet deployed		16,716		(3,727	)		-			12,989
	Total intangibles	$	172,968	$	(64,343	)	$	(85,435	)	$	23,190
		31-Jan-15
		Gross Value		Impairment			Accumulated			Net Value		Weighted
							Amortization					Average
							and Effect of					Remaining
							Currency					Amortization
							Translation					Period
												(Years)
	Acquired intangible assets:
	Developed technology	$	76,628	$	(24,614	)	$	(44,604	)	$	7,410		2
	Customer relationships		50,704		(30,486	)		(18,313	)		1,905		1.7
	Trademarks and other		4,078		-			(3,621	)		457		3.9
	Purchased IP - amortizing		23,398		(5,516	)		(15,162	)		2,720		1
	Total amortizing		154,808		(60,616	)		(81,700	)		12,492		1.8
	Purchased IP - not yet deployed		15,877		(3,727	)		-			12,150
	Total intangibles	$	170,685	$	(64,343	)	$	(81,700	)	$	24,642
	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.
	The following table presents the amortization of intangible assets in the accompanying condensed consolidated statements of operations (in thousands):
		Three Months Ended
		May		May
		2		3
		, 201		, 201
		5		4
	Cost of revenue	$	2,006	$	1,946
	Operating expenses		353		354
	Total intangibles amortization expense	$	2,359	$	2,300
	As of May 2, 2015, we expect amortization expense in future periods to be as follows (in thousands):
	Fiscal year	Total
	2016 (remaining nine months)	$	5,135
	2017		4,253
	2018		710
	2019		103
	Total	$	10,201

Note_7_Restructuring_Costs

Note 7 - Restructuring Costs	3 Months Ended
	2-May-15
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	7.          Restructuring costs
	In fiscal 2013, as a result of significant expansion in our 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. Costs relating to facilities closure or lease commitment are recognized when the facility has been exited. Termination costs are recognized when the costs are deemed both probable and estimable and after notification to impacted employees has occurred.
	During the quarter ended May 2, 2015, we incurred restructuring charges of less than $0.1 million, substantially all of which was related to facility exit cost adjustments, which was reflected in operating expenses.
	During the quarter ended May 3, 2014, as part of our continuing efforts to reduce expenses, we incurred restructuring charges of $1.0 million, all of which was related to workforce reductions of 29 employees across several geographic regions, the majority of which were in our operations in Israel. Of the total restructuring charges recorded in the first fiscal quarter ended May 3, 2014, less than $0.1 million was reflected in cost of revenue and $1.0 million was reflected in operating expenses.
	Expenses recognized for restructuring activities impacting our operating expenses are included in “Restructuring costs” in the condensed consolidated statements of operations. Our restructuring measures could negatively impact our revenue and results of operations in the future as a result of less employees developing future products and working to sell our products.
	A combined summary of the recent activity of the restructuring plans initiated by us is as follows (in thousands):
		Workforce			Asset		Facility			Total			Cumulative
		Reduction			Impairment		Exit						Restructuring
							Costs						Costs
	Liability, February 1, 2014	$	363		$	-	$	2		$	365		$	5,570
	Charges in fiscal 2015		1,083			-		(20	)		1,063			1,063
	Cash payments		(1,382	)		-		8			(1,374	)		-
	Non-cash items		38			-		10			48			-
	Liability, January 31, 2015		102			-		-			102			6,633
	Charges for the three months ended May 2, 2015		3			-		6			9			9
	Cash payments		(3	)		-		(7	)		(10	)		-
	Non-cash items		-					1			1			-
	Balance at May 2, 2015	$	102		$	-	$	-		$	102		$	6,642

Note_8_Sale_of_Development_Pro

Note 8 - Sale of Development Project	3 Months Ended
	2-May-15
Notes to Financial Statements
Mergers, Acquisitions and Dispositions Disclosures [Text Block]	8.          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 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 consolidated statements of operations for fiscal 2014. 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.
	As the contingent consideration was uncertain at the time of the initial sale, we did not recognize the contingent payment. Accordingly, payment consideration, if and when it is finally determined that the milestones were met, will be recorded as other income in our consolidated statements of operations in its entirety.
	The Buyer advised us that it does not believe the milestones had been met by the deadline of September 30, 2013. On May 19, 2014, the parties amended the Asset Purchase Agreement to require the use of Judicial Arbitration and Mediations Services (“JAMS”) for arbitration to settle the dispute between the parties. We are currently pursuing our rights to the milestone consideration payment through the alternative dispute resolution provisions set forth in the amendment. To the extent we recognize any payment in regard to the milestone completion, we will recognize income upon receipt of any such proceeds from the Buyer. On September 5, 2014, the Buyer filed counterclaims in response to our claims arising from the Asset Purchase Agreement. A tentative date for an arbitration hearing has been set. We intend to contest these counterclaims vigorously and believe they are without merit.

Note_9_Commitments_and_Conting

Note 9 - Commitments and Contingencies	3 Months Ended
	2-May-15
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	9.          Commitments and contingencies
	Commitments
	Product warranty
	In general, we sell products with up to 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 is included in accrued liabilities in the accompanying condensed consolidated balance sheets.
	Details of the change in accrued warranty as of May 2, 2015 and May 3, 2014 are as follows (in thousands):
	Three Months Ended	Balance		Additions		Deductions			Balance
		Beginning of		and					End
		Period		Adjustments					of Period
	2-May-15	$	864	$	140	$	(143	)	$	861
	3-May-14	$	620	$	125	$	(115	)	$	630
	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 May 2, 2015, the total amount of outstanding non-cancelable purchase orders was approximately $29.1 million.
	Design Tools
	We entered into an agreement with a vendor to purchase $12.9 million of design tools. Payments under this agreement are being made on a quarterly basis from June 2013 through March 2016. As of May 2, 2015, the remaining payments under this agreement totaled $5.4 million. In addition to this agreement, we have entered into other purchase arrangements for certain design tools which totaled $2.9 million. Payments under these arrangements are being made through fiscal 2017. We have fully accrued these amounts as of May 2, 2015.
	Royalties
	We pay royalties for the right to sell certain products under various license agreements. During the three months ended May 2, 2015 and May 3, 2014, we recorded gross royalty expense of $0.8 million and $0.6 million, respectively, in cost of revenue in the condensed consolidated statements of operations.
	Our wholly owned subsidiary, Sigma Designs Israel SDI Ltd. (formerly Coppergate Communications, Ltd.), participated in programs sponsored by the Office of the Chief Scientist of Israel's Ministry of Industry, Trade and Labor, or the OCS, for the support of research and development activities that we conducted in Israel. Through May 2, 2015, we had obtained grants from the OCS aggregating to $5.2 million of our research and development projects in Israel. We completed the most recent of these projects in 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 the grants received, plus LIBOR-based interest. As of May 2, 2015, our remaining potential obligation under these programs was approximately $1.1 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. 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.
	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. 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. The Buyer advised us that it does not believe the milestones had been met by September 30, 2013. On May 19, 2014, the parties amended the Asset Purchase Agreement to require the use of JAMS for arbitration to settle the dispute between the parties.
	We are currently pursuing our rights to the milestone consideration payment through the alternative dispute resolution provisions set forth in the amendment. On September 5, 2014, the Buyer filed counterclaims in response to our claims arising from the Asset Purchase Agreement. A tentative date for an arbitration hearing has been set. We intend to contest these counterclaims vigorously and believe they are without merit. For further discussion, refer to Note 8 to the accompanying condensed consolidated financial statements.
	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 condensed consolidated balance sheet as of May 2, 2015.
	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 2015, we settled an audit through binding arbitration relating to a license agreement used in our Set-top Box business for $0.2 million, $0.1 million of which was incurred during the three months ending May 3, 2014 and was included in sales and marketing expenses in the accompanying condensed consolidated statements of operations.
	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. During the second quarter of fiscal 2015, we were notified by one of our licensors of their intent to audit for compliance with the terms of the license. As of May 22, 2015, the audit process has been completed for which the licensor subsequently remitted preliminary information to us indicating the potential for additional payments may be required. We are currently assessing the audit findings along with the licensor pending any affirmative conclusions reached from either party. We believe we are substantially in compliance with the terms of our licensing arrangements.

Note_10_Earnings_Per_Share

Note 10 - Earnings Per Share	3 Months Ended
	2-May-15
Notes to Financial Statements
Earnings Per Share [Text Block]	10.           Earnings per share
	Basic loss per share is computed by dividing net loss by the weighted-average number of common shares outstanding for the fiscal period. Diluted loss per share for the three months ended May 2, 2015 and May 3, 2014 is the same as basic loss per share as there is a net loss in both periods and inclusion of potentially issuable shares is anti-dilutive.
	The following table sets forth the basic and diluted net loss per share computed for the three months ended May 2, 2015 and May 3, 2014 (in thousands, except per share amounts):
		Three Months Ended
		May			3-May
		2			, 201
		, 201			4
		5
	Numerator:
	Net loss, as reported	$	(382	)	$	(9,914	)
	Denominator:
	Weighted-average common shares outstanding - basic		35,395			34,367
	Dilutive effect of employee stock plans		-			-
	Weighted-average common shares outstanding - diluted		35,395			34,367
	Net loss per share - basic	$	(0.01	)	$	(0.29	)
	Net loss per share - diluted	$	(0.01	)	$	(0.29	)
	The weighted-average number of shares outstanding used in the computation of basic and diluted loss per share does not include the effect of the following potential outstanding shares of common stock. The effects of these potentially outstanding shares were not included in the calculation of basic and diluted loss per share because the effect would have been anti-dilutive (in thousands):
		Three Months Ended
		May			3-May
		2			, 201
		, 201			4
		5
	Stock options		2,963			4,019
	Restricted stock units and awards		743			385

Note_11_Shareholders_Equity_an

Note 11 - Shareholders' Equity and Employee Benefits	3 Months Ended
	2-May-15
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	11.           Shareholders’ equity and employee benefits
	Condensed consolidated statement of shareholders’ equity (amounts in thousands, except shares)
		Common Stock				Treasury Stock						Accumulated Other
												Comprehensive Loss
		Shares		Amount		Shares			Amount			Unrealized			Accumulated			Accumulated			Total
												Loss			Translation			Deficit			Shareholders’
															Adjustment						Equity
	Balance, January 31, 2015		39,973,689	$	493,550		(4,659,143	)	$	(88,198	)	$	(27	)	$	(1,084	)	$	(260,951	)	$	143,290
	Unrealized loss on marketable securities		-		-		-			-			(19	)		-			-			(19	)
	Currency translation adjustments		-		-		-			-			-			(12	)		-			(12	)
	Stock-based compensation expense		-		1,734		-			-			-			-			-			1,734
	Tax effect related to share awards		-		712		-			-			-			-			-			712
	Net proceeds from common stock issued under share plans		119,715		153		-			-			-			-			-			153
	Net loss		-		-		-			-			-			-			(382	)		(382	)
	Balance, May 2, 2015		40,093,404	$	496,149		(4,659,143	)	$	(88,198	)	$	(46	)	$	(1,096	)	$	(261,333	)	$	145,476
	Endowment insurance pension plan
	Related to our acquisition of our DTV business in May 2012, we added operations in Shanghai, China.  It is required by the “Procedures of Shanghai Municipality on Endowment Insurance for Town Employees” to provide pension insurance for Shanghai employees.  The mandatory plan is managed by the local authority.  Under the current plan, the employee will contribute 8.0% of the annual base to the plan and the employer will match 21% of the annual base.  For calendar year 2015, the annual base is capped at RMB 16,353 per employee. We made matching contributions of $0.5 million for each of the three months ended May 2, 2015 and May 3, 2014.
	Retirement pension plans
	We maintain retirement pension plans for the benefit of qualified employees in Denmark, Taiwan, the Netherlands, and Germany. We made matching contributions of $0.2 million for each of the three months ended May 2, 2015 and May 3, 2014.
	Severance plan
	We maintain a severance plan for several Israeli employees pursuant to Israel's Severance Pay Law based on the most recent salary of the employees multiplied by the number of years of employment.  Upon termination of employment, employees are entitled to one month salary for each year of employment or a portion thereof.  As of May 2, 2015, we have an accrued severance liability of $0.7 million offset by $0.7 million of severance employee funds.
	Employee Stock Purchase Plan
	During the first quarter of fiscal 2016, we discovered that we inadvertently sold shares of our common stock to our employees during fiscal 2015 in excess of the shares of common stock authorized to be issued under our 2010 Purchase Plan. As a result, we may have failed to comply with the registration or qualification requirements of federal securities laws. Certain purchasers of the shares that were issued in excess of the shares authorized under our 2010 Purchase Plan may have the right to rescind their purchases from us for an amount equal to the purchase price paid for shares, plus interest from the date of purchase. These shares were treated as issued and outstanding for financial reporting purposes as of the original date of issuance. We intend to make a registered rescission offer during fiscal 2016 to eligible participants who purchased shares in the last twelve months.
	As of March 24, 2015, there were approximately 102,078 shares issued to participants in the 2010 Purchase Plan in the past twelve months that continued to be held by the original purchasers of such shares which may be subject to the rescission rights referenced above. All of these shares were originally purchased for $3.89 per share. If holders of all these shares seek to rescind their purchases, we could be required to make aggregate payments of up to approximately $0.4 million, which does not include statutory interest. However, the actual impact to our cash position may be lower depending on the number of holders who accept the rescission offer and tender their shares. Pursuant to the authoritative accounting guidance, the shares are considered mandatorily redeemable as the redemption may be outside of our control. The aforementioned amount is included in accrued compensation and related benefits in the accompanying condensed consolidated balance sheets. The shares subject to repurchase are included in permanent equity as of January 31, 2015 as these shares are legally outstanding with all rights and privileges therein. We also may be subject to civil and other penalties by regulatory authorities as a result of the failure to register these shares with the Securities and Exchange Commission. We do not believe that the failure to register the shares or the planned rescission offer will have a material impact on our condensed consolidated financial statements.
	We are also evaluating the potential impact to our employees, including potential tax consequences, for issuing shares in excess of the number of shares reserved under our 2010 Purchase Plan. We may incur additional costs associated with any potential tax consequences and during the fourth quarter of fiscal 2015, we accrued $0.4 million of expense associated with these additional costs which were recorded in accrued compensation and related benefits in the accompanying condensed consolidated balance sheets.

Note_12_Income_taxes

Note 12 - Income taxes	3 Months Ended
	2-May-15
Notes to Financial Statements
Income Tax Disclosure [Text Block]	12.           Income taxes
	We recorded a provision for income taxes of $2.5 million and $1.4 million for the three months ended May 2, 2015 and May 3, 2014, respectively.  The increase in tax expense is primarily attributable to higher profitability in taxable jurisdictions in the first quarter of fiscal year 2016 as compared to the same period in fiscal year 2015 and changes in tax reserves. During the three months ended May 2, 2015 and May 3, 2014, 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.

Note_13_Segment_and_Geographic

Note 13 - Segment and Geographical Information	3 Months Ended
	2-May-15
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	13.           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, expense or net income.
	Our net revenue is derived principally from the sales of integrated semiconductor solutions, which we sell across all of our target markets. Smart TV products consist of a range of platforms that are based on highly integrated chips, embedded software, and hardware reference designs. Media Connectivity products consist of wired home networking controller chipsets that are designed to provide connectivity solutions between various home entertainment products and incoming video streams. Set-top Box products consist of connected media processors and players delivering IP streaming video, including hybrid versions of these products. IoT Devices consist of our wireless Z-Wave chipsets and modules.
	Our License and other markets include revenue derived from the licensing of our technology to third parties and other sources. Revenue derived from other sources includes software development kits, engineering support services for hardware and software, and engineering development for customization of chipsets and other accessories. Revenue derived from licensing of our technology represented zero and 6.5% of our total net revenue for the three months ended May 2, 2015 and May 3, 2014, respectively.
	Historically, we disclosed information encompassing product groupings by target markets with certain naming conventions, consisting of Digital Television (“DTV”), Set-top Box, Home Networking, Home Control, and License and other. Effective in the fourth quarter of fiscal 2015, we changed the naming conventions of some of our target markets, commensurate with changes taking effect in our industry as a whole. We renamed our “DTV” target market to “Smart TV,” “Home Networking” to “Media Connectivity,” and “Home Control” to “IoT Devices.” These changes did not affect the products or related services categorization, or previously reported amounts related to the aforementioned historical target markets.
	The following tables set forth net revenue attributable to each target market (in thousands):
		Three Months Ended
		2-May-15		3-May-14
	Smart TV	$	21,476	$	6,063
	Media Connectivity		15,117		16,120
	IoT Devices		12,457		6,140
	Set-top Box		6,556		5,689
	License and other		306		2,861
	Net revenue	$	55,912	$	36,873
	The following table sets forth net revenue for each geographic region based on the ship-to location of customers (in thousands):
		Three Months Ended
		May		May
		2		3
		, 201		, 201
		5		4
	Asia	$	39,669	$	29,246
	North America		12,153		4,336
	Europe		2,765		2,302
	Other Regions		1,325		989
	Net revenue	$	55,912	$	36,873
	The following table sets forth net revenue to each significant country based on the ship-to location of customers (in thousands):
		Three Months Ended
		2-May-15		3-May-14
	China, including Hong Kong	$	22,177	$	15,889
	United States		12,146		4,276
	Taiwan		8,919		4,248
	Thailand		4,985		6,018
	Rest of the world		7,685		6,442
	Net revenue	$	55,912	$	36,873
	During the three months ended May 2, 2015, Sunjet Components Corporation accounted for 12% of our net revenue. During the three months ended May 3, 2014, Benchmark Electronics accounted for 11% of our net revenue.
	As of May 2, 2015, Nanning Fugui Precision and Digi-Key Corporation accounted for approximately 15% and 10% of net accounts receivable, respectively. As of May 3, 2014, Benchmark Electronics and Nanning Fugui Precision accounted for approximately 19% and 13% of net accounts receivable, respectively.

Significant_Accounting_Policie

Significant Accounting Policies (Policies)	3 Months Ended
	2-May-15
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation:
	The unaudited condensed consolidated financial statements include the accounts of Sigma Designs, Inc. and its wholly-owned subsidiaries.  All significant intercompany balances and transactions have been eliminated upon consolidation. We operate and report quarterly financial results that consist of 13 weeks and end on the last Saturday of the period. The first quarter of fiscal 2016 and fiscal 2015 ended on May 2, 2015 (91 days) and May 3, 2014 (91 days), respectively.
	The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”).  They do not 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 January 31, 2015, included in our fiscal 2015 Annual Report on Form 10-K, as filed with the SEC on April 15, 2015, referred to as our fiscal 2015 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 May 2, 2015 and January 31, 2015, the consolidated results of our operations for the three months ended May 2, 2015 and May 3, 2014, and the consolidated cash flows for the three months ended May 2, 2015 and May 3, 2014.  The results of operations for the three months ended May 2, 2015 are not necessarily indicative of the results to be expected for future quarters or the full year.
	There have been no significant changes in our critical accounting policies during the three months ended May 3, 2015, as compared to the critical accounting policies described in our Annual Report on Form 10-K for the year ended January 31, 2015. For a complete summary of our significant accounting policies, refer to Note 1, "Organization and Summary of Significant Accounting Policies”, in Part II, Item 8 of our fiscal 2015 Annual Report.
New Accounting Pronouncements, Policy [Policy Text Block]	Recent accounting
	p
	ronouncements
	Recent accounting pronouncements expected to impact our operations that are not yet effective are summarized as follows:
	In August 2014, the FASB issued Accounting Standards Update No. 2014-15,
	Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern
	(ASU 2014-15), to provide guidance on management’s responsibility in evaluating whether there is substantial doubt about a company’s ability to continue as a going concern and to provide related footnote disclosures. ASU 2014-15 is effective for the Company beginning in the first quarter of 2016 with early adoption permitted. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial statements.
	In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update No. 2014-09,
	Revenue from Contracts with Customers
	(Topic 606) (“ASU 2014-09”), which amends the existing accounting standards for revenue recognition. ASU 2014-09 is based on principles that govern the recognition of revenue at an amount an entity expects to be entitled when products are transferred to customers. The FASB recently announced plans to defer the effective adoption date by one year. Based on the aforementioned deferral, ASU 2014-09 will be effective for us beginning in its first quarter of fiscal 2019. Early adoption is not permitted. The new revenue standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption. The Company is currently evaluating the impact of adopting the new revenue standard on its consolidated financial statements.

Note_2_Cash_Cash_Equivalents_a1

Note 2 - Cash, Cash Equivalents and Marketable Securities (Tables)	3 Months Ended
	2-May-15
Notes Tables
Cash, Cash Equivalents and Investments [Table Text Block]		May						31-Jan
		2						, 201
		, 201						5
		5
		Book Value		Net		Fair Value		Book Value		Net			Fair Value
				Unrealized						Unrealized
				Gains						Gains
				(Losses)						(Losses)
	Corporate bonds	$	16,203	$	134	$	16,337	$	9,130	$	153		$	9,283
	Money market funds		215		-		215		7,650		-			7,650
	Fixed income mutual funds		1,281		6		1,287		1,324		(11	)		1,313
	Total cash equivalents and marketable securities	$	17,699	$	140	$	17,839	$	18,104	$	142		$	18,246
	Cash on hand held in the United States						16,339							12,042
	Cash on hand held overseas						52,780							63,810
	Total cash on hand						69,119							75,852
	Total cash, cash equivalents and marketable securities					$	86,958						$	94,098
	Reported as:
	Cash and cash equivalents					$	69,334						$	83,502
	Short-term marketable securities						8,448							6,347
	Long-term marketable securities						9,176							4,249
						$	86,958						$	94,098
Investments Classified by Contractual Maturity Date [Table Text Block]		May				31-Jan
		2,				, 201
		201				5
		5
		Book Value		Fair Value		Book Value		Fair Value
	Due in one year or less	$	8,600	$	8,663	$	13,995	$	13,997
	Due in greater than one year		9,099		9,176		4,109		4,249
	Total	$	17,699	$	17,839	$	18,104	$	18,246

Note_3_Fair_Values_of_Assets_a1

Note 3 - Fair Values of Assets and Liabilities (Tables)	3 Months Ended
	2-May-15
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]		2-May
		, 201
		5
		Fair Value		Quoted Prices		Significant		Significant
				in Active		Observable		Unobservable
				Markets for		Inputs		Inputs
				Identical Assets		(Level 2)		(Level 3)
				(Level 1)
	Corporate bonds	$	16,337	$	16,337	$	-	$	-
	Money market funds		215		215		-		-
	Fixed income mutual funds		1,287		1,287		-		-
	Total cash equivalents and marketable securities		17,839		17,839		-		-
	Restricted cash		400		400		-		-
	Total assets	$	18,239	$	18,239	$	-	$	-
	measured at fair value
		31-Jan
		, 201
		5
		Fair Value		Quoted Prices		Significant		Significant
				in Active		Observable		Unobservable
				Markets for		Inputs		Inputs
				Identical Assets		(Level 2)		(Level 3)
				(Level 1)
	Corporate bonds	$	9,283	$	9,283	$	-	$	-
	Money market funds		7,650		7,650		-		-
	Fixed income mutual funds		1,313		1,313		-		-
	Total cash equivalents and marketable securities		18,246		18,246		-		-
	Restricted cash		400		400		-		-
	Total assets measured at fair value	$	18,646	$	18,646	$	-	$	-

Note_4_Investments_in_and_Note1

Note 4 - Investments in and Notes Receivable from Privately Held Companies (Tables)	3 Months Ended
	2-May-15
Notes Tables
Schedule of Equity Investments in and Financing Notes Receivable from Privately Held Companies [Table Text Block]	Equity investments:	May		31-Jan
		2		, 201
		, 201		5
		5
	Issuer A	$	2,000	$	2,000
	Issuer B		1,000		1,000
	Issuer C		129		129
	Issuer D		139		138
	Total equity investments	$	3,268	$	3,267

Note_5_Supplemental_Financial_1

Note 5 - Supplemental Financial Information (Tables)	3 Months Ended
	2-May-15
Notes Tables
Schedule of Inventory, Current [Table Text Block]		May			31-Jan
		2			, 201
		, 201			5
		5
	Wafers and other purchased materials	$	11,034		$	8,420
	Work-in-process		5,483			3,045
	Finished goods		7,929			8,980
	Total inventory	$	24,446		$	20,445
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]		May			31-Jan
		2			, 201
		, 201			5
		5
	Deposits	$	3,224		$	3,124
	Prepayments for inventory		1,585			1,670
	Prepayments for royalties		762			659
	R&D credit receivable		618			583
	Other current assets		2,921			2,769
	Total prepaid expenses and other current assets	$	9,110		$	8,805
Property, Plant and Equipment [Table Text Block]		Estimated Useful Lives							May			31-Jan
		(years)							2			, 201
									, 201			5
									5
	Software					2			$	41,064		$	41,069
	Equipment		1			-		5		23,547			22,168
	Office equipment and furniture					2				8,944			8,693
	Leasehold improvements		1			-		6		2,957			2,874
	Total									76,512			74,804
	Less: Accumulated depreciation and amortization									(55,900	)		(53,210	)
	Total software, equipment and leasehold improvements, net								$	20,612		$	21,594
Schedule of Accrued Liabilities [Table Text Block]		May			31-Jan
		2			, 201
		, 201			5
		5
	Rebates	$	7,142		$	9,599
	License fees		4,702			4,286
	Income taxes payable, current portion		1,499			5,326
	Royalties		1,235			880
	Warranties		861			864
	Deferred revenue		366			372
	Other accrued liabilities		1,655			1,567
	Total accrued liabilities	$	17,460		$	22,894
Other Current Liabilities [Table Text Block]		Three Months Ended
		2-May-15			3-May-14
	Beginning balance	$	9,599		$	3,587
	Charged as a reduction of revenue		4,120			2,733
	Reversal of unclaimed rebates		(807	)		-
	Payments		(5,770	)		(3,479	)
	Ending balance	$	7,142		$	2,841

Note_6_Intangible_Assets_Table

Note 6 - Intangible Assets (Tables)	3 Months Ended
	2-May-15
Notes Tables
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]		2-May-15
		Gross Value		Impairment			Accumulated			Net Value		Weighted
							Amortization					Average
							and Effect of					Remaining
							Currency					Amortization
							Translation					Period
												(Years)
	Acquired intangible assets:
	Developed technology	$	76,628	$	(24,614	)	$	(45,666	)	$	6,348		1.8
	Customer relationships		50,704		(30,486	)		(18,593	)		1,625		1.5
	Trademarks and other		5,478		-			(5,051	)		427		3.7
	Purchased IP - amortizing		23,442		(5,516	)		(16,125	)		1,801		1
	Total amortizing		156,252		(60,616	)		(85,435	)		10,201		1.7
	Purchased IP - not yet deployed		16,716		(3,727	)		-			12,989
	Total intangibles	$	172,968	$	(64,343	)	$	(85,435	)	$	23,190
		31-Jan-15
		Gross Value		Impairment			Accumulated			Net Value		Weighted
							Amortization					Average
							and Effect of					Remaining
							Currency					Amortization
							Translation					Period
												(Years)
	Acquired intangible assets:
	Developed technology	$	76,628	$	(24,614	)	$	(44,604	)	$	7,410		2
	Customer relationships		50,704		(30,486	)		(18,313	)		1,905		1.7
	Trademarks and other		4,078		-			(3,621	)		457		3.9
	Purchased IP - amortizing		23,398		(5,516	)		(15,162	)		2,720		1
	Total amortizing		154,808		(60,616	)		(81,700	)		12,492		1.8
	Purchased IP - not yet deployed		15,877		(3,727	)		-			12,150
	Total intangibles	$	170,685	$	(64,343	)	$	(81,700	)	$	24,642
Amortization of Intangible Assets [Table Text Block]		Three Months Ended
		May		May
		2		3
		, 201		, 201
		5		4
	Cost of revenue	$	2,006	$	1,946
	Operating expenses		353		354
	Total intangibles amortization expense	$	2,359	$	2,300
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Fiscal year	Total
	2016 (remaining nine months)	$	5,135
	2017		4,253
	2018		710
	2019		103
	Total	$	10,201

Note_7_Restructuring_Costs_Tab

Note 7 - Restructuring Costs (Tables)	3 Months Ended
	2-May-15
Notes Tables
Restructuring and Related Costs [Table Text Block]		Workforce			Asset		Facility			Total			Cumulative
		Reduction			Impairment		Exit						Restructuring
							Costs						Costs
	Liability, February 1, 2014	$	363		$	-	$	2		$	365		$	5,570
	Charges in fiscal 2015		1,083			-		(20	)		1,063			1,063
	Cash payments		(1,382	)		-		8			(1,374	)		-
	Non-cash items		38			-		10			48			-
	Liability, January 31, 2015		102			-		-			102			6,633
	Charges for the three months ended May 2, 2015		3			-		6			9			9
	Cash payments		(3	)		-		(7	)		(10	)		-
	Non-cash items		-					1			1			-
	Balance at May 2, 2015	$	102		$	-	$	-		$	102		$	6,642

Note_9_Commitments_and_Conting1

Note 9 - Commitments and Contingencies (Tables)	3 Months Ended
	2-May-15
Notes Tables
Schedule of Product Warranty Liability [Table Text Block]	Three Months Ended	Balance		Additions		Deductions			Balance
		Beginning of		and					End
		Period		Adjustments					of Period
	2-May-15	$	864	$	140	$	(143	)	$	861
	3-May-14	$	620	$	125	$	(115	)	$	630

Note_10_Earnings_Per_Share_Tab

Note 10 - Earnings Per Share (Tables)	3 Months Ended
	2-May-15
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]		Three Months Ended
		May			3-May
		2			, 201
		, 201			4
		5
	Numerator:
	Net loss, as reported	$	(382	)	$	(9,914	)
	Denominator:
	Weighted-average common shares outstanding - basic		35,395			34,367
	Dilutive effect of employee stock plans		-			-
	Weighted-average common shares outstanding - diluted		35,395			34,367
	Net loss per share - basic	$	(0.01	)	$	(0.29	)
	Net loss per share - diluted	$	(0.01	)	$	(0.29	)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]		Three Months Ended
		May			3-May
		2			, 201
		, 201			4
		5
	Stock options		2,963			4,019
	Restricted stock units and awards		743			385

Note_11_Shareholders_Equity_an1

Note 11 - Shareholders' Equity and Employee Benefits (Tables)	3 Months Ended
	2-May-15
Notes Tables
Schedule of Stockholders Equity [Table Text Block]	Condensed consolidated statement of shareholders’ equity (amounts in thousands, except shares)
		Common Stock				Treasury Stock						Accumulated Other
												Comprehensive Loss
		Shares		Amount		Shares			Amount			Unrealized			Accumulated			Accumulated			Total
												Loss			Translation			Deficit			Shareholders’
															Adjustment						Equity
	Balance, January 31, 2015		39,973,689	$	493,550		(4,659,143	)	$	(88,198	)	$	(27	)	$	(1,084	)	$	(260,951	)	$	143,290
	Unrealized loss on marketable securities		-		-		-			-			(19	)		-			-			(19	)
	Currency translation adjustments		-		-		-			-			-			(12	)		-			(12	)
	Stock-based compensation expense		-		1,734		-			-			-			-			-			1,734
	Tax effect related to share awards		-		712		-			-			-			-			-			712
	Net proceeds from common stock issued under share plans		119,715		153		-			-			-			-			-			153
	Net loss		-		-		-			-			-			-			(382	)		(382	)
	Balance, May 2, 2015		40,093,404	$	496,149		(4,659,143	)	$	(88,198	)	$	(46	)	$	(1,096	)	$	(261,333	)	$	145,476

Note_13_Segment_and_Geographic1

Note 13 - Segment and Geographical Information (Tables)	3 Months Ended
	2-May-15
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]		Three Months Ended
		2-May-15		3-May-14
	Smart TV	$	21,476	$	6,063
	Media Connectivity		15,117		16,120
	IoT Devices		12,457		6,140
	Set-top Box		6,556		5,689
	License and other		306		2,861
	Net revenue	$	55,912	$	36,873
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]		Three Months Ended
		May		May
		2		3
		, 201		, 201
		5		4
	Asia	$	39,669	$	29,246
	North America		12,153		4,336
	Europe		2,765		2,302
	Other Regions		1,325		989
	Net revenue	$	55,912	$	36,873
Geographic Concentration Risk [Member]
Notes Tables
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]		Three Months Ended
		2-May-15		3-May-14
	China, including Hong Kong	$	22,177	$	15,889
	United States		12,146		4,276
	Taiwan		8,919		4,248
	Thailand		4,985		6,018
	Rest of the world		7,685		6,442
	Net revenue	$	55,912	$	36,873

Note_2_Cash_Cash_Equivalents_a2

Note 2 - Cash, Cash Equivalents and Marketable Securities (Details Textual) (USD $)	2-May-15	Jan. 31, 2015
In Millions, unless otherwise specified
Restricted Cash and Cash Equivalents	$0.40	$0.40

Note_2_Cash_Cash_Equivalents_a3

Note 2 - Cash, Cash Equivalents and Marketable Securities - Cash, Cash Equivalents and Marketable Securities (Details) (USD $)	3 Months Ended	12 Months Ended
	2-May-15	Jan. 31, 2015
Book Value	$17,699,000	$18,104,000
Net Unrealized Gains (Losses)	140,000	142,000
Fair Value	17,839,000	18,246,000
Fair value - cash on hand	69,119,000	75,852,000
Total cash, cash equivalents and marketable securities	86,958,000	94,098,000
Cash and cash equivalents	69,334,000	83,502,000
Short-term marketable securities	8,448,000	6,347,000
Long-term marketable securities	9,176,000	4,249,000
Corporate Bond Securities [Member]
Book Value	16,203,000	9,130,000
Net Unrealized Gains (Losses)	134,000	153,000
Fair Value	16,337,000	9,283,000
Money Market Funds [Member]
Book Value	215,000	7,650,000
Fair Value	215,000	7,650,000
Fixed Income Funds [Member]
Book Value	1,281,000	1,324,000
Net Unrealized Gains (Losses)	6,000	-11,000
Fair Value	1,287,000	1,313,000
UNITED STATES
Fair value - cash on hand	16,339,000	12,042,000
Overseas [Member]
Fair value - cash on hand	$52,780,000	$63,810,000

Note_2_Amortized_Cost_and_Esti

Note 2 - Amortized Cost and Estimated Fair Value of Cash Equivalents and Marketable Securities by Maturity (Details) (USD $)	2-May-15	Jan. 31, 2015
In Thousands, unless otherwise specified
Book Value	$17,699	$18,104
Fair Value	17,839	18,246
Due in One Year or Less [Member]
Book Value	8,600	13,995
Fair Value	8,663	13,997
Due in Greater Than One Year [Member]
Book Value	9,099	4,109
Fair Value	$9,176	$4,249

Note_3_Fair_Values_of_Assets_a2

Note 3 - Fair Values of Assets and Liabilities (Details Textual) (Equity Investments and Promissory Notes Receivable [Member], USD $)	2-May-15
In Millions, unless otherwise specified
Equity Investments and Promissory Notes Receivable [Member]
Investment Owned, at Cost	$3.30

Note_3_Fair_Values_of_Assets_a3

Note 3 - Fair Values of Assets and Liabilities - Assets and Liabilites Measured at Fair Value (Details) (USD $)	2-May-15	Jan. 31, 2015
In Thousands, unless otherwise specified
Cash equivalents and short-term investments	$17,839	$18,246
Restricted cash	400	400
Total assets/liabilities measured at fair value	18,239	18,646
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Cash equivalents and short-term investments	16,337	9,283
Corporate Bond Securities [Member]
Cash equivalents and short-term investments	16,337	9,283
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Cash equivalents and short-term investments	215	7,650
Money Market Funds [Member]
Cash equivalents and short-term investments	215	7,650
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Cash equivalents and short-term investments	1,287	1,313
Fixed Income Funds [Member]
Cash equivalents and short-term investments	1,287	1,313
Fair Value, Inputs, Level 1 [Member]
Cash equivalents and short-term investments	17,839	18,246
Restricted cash	400	400
Total assets/liabilities measured at fair value	$18,239	$18,646

Note_4_Investments_in_and_Note2

Note 4 - Investments in and Notes Receivable from Privately Held Companies (Details Textual) (USD $)	3 Months Ended	12 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Jan. 30, 2010	Jan. 31, 2009	Oct. 30, 2010	Aug. 02, 2014	Feb. 01, 2014	Jan. 29, 2011	Oct. 29, 2011	Nov. 30, 2010
Issuer A [Member] | Preferred Stock Investments [Member]
Payments to Acquire Investments	$1	$1
Issuer A [Member]
Notes, Loans and Financing Receivable, Gross, Noncurrent								1
Issuer B [Member] | Preferred Stock Investments [Member]
Payments to Acquire Investments			1
Issuer C [Member] | Preferred Stock Investments [Member]
Payments to Acquire Investments						1
Other than Temporary Impairment Losses, Investments				0.6	0.3
Issuer D [Member]
Payments to Acquire Investments							$0.10

Note_4_Value_of_Investments_In

Note 4 - Value of Investments In and Notes Receivable From Privately Held Companies (Details) (USD $)	2-May-15	Jan. 31, 2015
In Thousands, unless otherwise specified
Equity investments	$3,268	$3,267
Issuer A [Member]
Equity investments	2,000	2,000
Issuer B [Member]
Equity investments	1,000	1,000
Issuer C [Member]
Equity investments	129	129
Issuer D [Member]
Equity investments	$139	$138

Note_5_Supplemental_Financial_2

Note 5 - Supplemental Financial Information (Details Textual) (USD $)	3 Months Ended
In Millions, unless otherwise specified	2-May-15	3-May-14
Depreciation, Depletion and Amortization, Nonproduction	$2.90	$3.10
Design Tool Licences [Member]
Impairment of Intangible Assets (Excluding Goodwill)	$0.10	$0.10

Note_5_Supplemental_Financial_3

Note 5 - Supplemental Financial Information - Inventory (Details) (USD $)	2-May-15	Jan. 31, 2015
In Thousands, unless otherwise specified
Wafers and other purchased materials	$11,034	$8,420
Work-in-process	5,483	3,045
Finished goods	7,929	8,980
Total inventory	$24,446	$20,445

Note_5_Supplemental_Financial_4

Note 5 - Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Details) (USD $)	2-May-15	Jan. 31, 2015
In Thousands, unless otherwise specified
Deposits	$3,224	$3,124
Prepayments for inventory	1,585	1,670
Prepayments for royalties	762	659
R&D credit receivable	618	583
Other current assets	2,921	2,769
Total prepaid expenses and other current assets	$9,110	$8,805

Note_5_Supplemental_Financial_5

Note 5 - Supplemental Financial Information - Software, Equipment and Leasehold Improvements (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	Jan. 31, 2015
Property, plant, and equipment, gross	$76,512	$74,804
Less: Accumulated depreciation and amortization	-55,900	-53,210
Total software, equipment and leasehold improvements, net	20,612	21,594
Software and Software Development Costs [Member]
Estimated Useful Lives	2 years
Property, plant, and equipment, gross	41,064	41,069
Equipment [Member] | Minimum [Member]
Estimated Useful Lives	1 year
Equipment [Member] | Maximum [Member]
Estimated Useful Lives	5 years
Equipment [Member]
Property, plant, and equipment, gross	23,547	22,168
Office Equipment [Member]
Estimated Useful Lives	2 years
Property, plant, and equipment, gross	8,944	8,693
Leasehold Improvements [Member] | Minimum [Member]
Estimated Useful Lives	1 year
Leasehold Improvements [Member] | Maximum [Member]
Estimated Useful Lives	6 years
Leasehold Improvements [Member]
Property, plant, and equipment, gross	$2,957	$2,874

Note_5_Supplemental_Financial_6

Note 5 - Supplemental Financial Information - Accrued Liabilities (Details) (USD $)	2-May-15	Jan. 31, 2015
In Thousands, unless otherwise specified
Rebates	$7,142	$9,599
License fees	4,702	4,286
Income taxes payable, current portion	1,499	5,326
Royalties	1,235	880
Warranties	861	864
Deferred revenue	366	372
Other accrued liabilities	1,655	1,567
Total accrued liabilities	$17,460	$22,894

Note_5_Supplemental_Financial_7

Note 5 - Supplemental Financial Information - Accrued Rebate Activity (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Beginning balance	$9,599	$3,587
Charged as a reduction of revenue	4,120	2,733
Reversal of unclaimed rebates	-807
Payments	-5,770	-3,479
Ending balance	$7,142	$2,841

Note_6_Intangible_Assets_Acqui

Note 6 - Intangible Assets - Acquired Intangible Assets, Subject to Amortization (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	2-May-15	Jan. 31, 2015
Gross Value	$172,968	$170,685
Impairment	-64,343	-64,343
Accumulated Amortization and Effect of Currency Translation	-85,435	-81,700
Net Value	23,190	24,642
Developed Technology Rights [Member]
Gross Value	76,628	76,628
Impairment	-24,614	-24,614
Accumulated Amortization and Effect of Currency Translation	-45,666	-44,604
Net Value	6,348	7,410
Weighted Average Remaining Amortization Period	1 year 292 days	2 years
Customer Relationships [Member]
Gross Value	50,704	50,704
Impairment	-30,486	-30,486
Accumulated Amortization and Effect of Currency Translation	-18,593	-18,313
Net Value	1,625	1,905
Weighted Average Remaining Amortization Period	1 year 182 days	1 year 255 days
Trademarks and Other [Member]
Gross Value	5,478	4,078
Accumulated Amortization and Effect of Currency Translation	-5,051	-3,621
Net Value	427	457
Weighted Average Remaining Amortization Period	3 years 255 days	3 years 328 days
Purchased IP-Amortizing [Member]
Gross Value	23,442	23,398
Impairment	-5,516	-5,516
Accumulated Amortization and Effect of Currency Translation	-16,125	-15,162
Net Value	1,801	2,720
Weighted Average Remaining Amortization Period	1 year	1 year
Acquired Intangible Assets Subtotal [Member]
Gross Value	156,252	154,808
Impairment	-60,616	-60,616
Accumulated Amortization and Effect of Currency Translation	-85,435	-81,700
Net Value	10,201	12,492
Weighted Average Remaining Amortization Period	1 year 255 days	1 year 292 days
Purchased Intellectual Property - not yet deployed [Member]
Gross Value	16,716	15,877
Impairment	-3,727	-3,727
Net Value	$12,989	$12,150

Note_6_Intangible_Assets_Amort

Note 6 - Intangible Assets - Amortization Expense of Intangible Assets (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Intangible Asset Amortization Expense	$2,359	$2,300
Cost of Sales [Member]
Intangible Asset Amortization Expense	2,006	1,946
Operating Expense [Member]
Intangible Asset Amortization Expense	$353	$354

Note_6_Intangible_Assets_Futur

Note 6 - Intangible Assets - Future Amortization Expense of Intangible Assets (Details) (USD $)	2-May-15
In Thousands, unless otherwise specified
2016 (remaining nine months)	$5,135
2017	4,253
2018	710
2019	103
Total	$10,201

Note_7_Restructuring_Costs_Det

Note 7 - Restructuring Costs (Details Textual) (USD $)	3 Months Ended
In Millions, unless otherwise specified	2-May-15	3-May-14
Facility Closing [Member] | Operating Expense [Member]
Restructuring and Related Cost, Incurred Cost	$0.10
Employee Severance [Member] | Operating Expense [Member]
Restructuring and Related Cost, Incurred Cost		1
Employee Severance [Member] | Cost of Sales [Member]
Restructuring and Related Cost, Incurred Cost		0.1
Employee Severance [Member]
Restructuring and Related Cost, Incurred Cost		$1
Restructuring and Related Cost, Number of Positions Eliminated		29

Note_7_Restructuring_Costs_Sum

Note 7 - Restructuring Costs - Summary of Restructuring Costs, Outstanding Payable Balance and Cumulative Restructuring Costs (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	2-May-15	Jan. 31, 2015	Feb. 01, 2014
Charges	$9
Employee Severance [Member]
Liability balance	102	102	363
Charges	3	1,083
Cash payments	-3	-1,382
Non-cash items		38
Facility Closing [Member]
Liability balance			2
Charges	6	-20
Cash payments	-7	8
Non-cash items	1	10
Total Restructuring Charges [Member]
Liability balance	102	102	365
Charges	9	1,063
Cash payments	-10	-1,374
Non-cash items	1	48
Cumulative Restructuring Costs [Member]
Liability balance	6,642	6,633	5,570
Charges	$9	$1,063

Note_8_Sale_of_Development_Pro1

Note 8 - Sale of Development Project (Details Textual) (USD $)	0 Months Ended	1 Months Ended
	Mar. 08, 2013	Apr. 30, 2013	2-May-15	Jan. 31, 2015
Number of Employees Transferred	21
Assets			$205,175,000	$205,333,000
Gain (Loss) on Sale of Project		1,100,000
Connectivity Assets Legal Fees and Bank Services		400,000
Proceeds from Payroll Transfer		600,000
MoCal [Member] | Closing Consideration [Member]
Revenue Recognition, Milestone Method, Revenue Recognized	2,000,000
MoCal [Member] | Payroll Expense Reimbursement [Member]
Revenue Recognition, Milestone Method, Revenue Recognized	600,000
MoCal [Member]
Assets	600,000
Additional After Timely First Milestone [Member]
Revenue Recognition, Milestone Method, Revenue Recognized	5,000,000

Note_9_Commitments_and_Conting2

Note 9 - Commitments and Contingencies (Details Textual) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Mar. 08, 2013	2-May-15	Feb. 01, 2014	3-May-14
Purchase Commitment, Remaining Minimum Amount Committed		$29.10
Proceeds from Grantors		5.2
Percentage of Royalties		4.50%
Accrued Royalties		1.1
Number of Employees Transferred	21
Loss Contingency Accrual				0.2
Design Tool Licences [Member]
Purchase Commitment, Remaining Minimum Amount Committed		5.4
Long-term Purchase Commitment, Amount		2.9	12.9
Cost of Sales [Member]
Direct Operating Cost, Royalty Expense		0.8		0.6
Selling and Marketing Expense [Member]
Loss Contingency, Loss in Period				0.1
Additional After Timely First Milestone [Member]
Revenue Recognition, Milestone Method, Revenue Recognized	5

Note_9_Commitments_and_Conting3

Note 9 - Commitments and Contingencies - Change in Accrued Warranty (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Balance Beginning of Period	$864	$620
Additions and Adjustments	140	125
Deductions	-143	-115
Balance End of Period	$861	$630

Note_10_Earnings_Per_Share_Bas

Note 10 - Earnings Per Share - Basic and Diluted Net Loss Per Share (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	2-May-15	3-May-14
Net loss, as reported	($382)	($9,914)
Weighted-average common shares outstanding - basic (in shares)	35,395	34,367
Dilutive effect of employee stock plans (in shares)
Weighted-average common shares outstanding - diluted (in shares)	35,395	34,367
Net loss per share - basic (in dollars per share)	($0.01)	($0.29)
Net loss per share - diluted (in dollars per share)	($0.01)	($0.29)

Note_10_Earnings_Per_Share_Exc

Note 10 - Earnings Per Share - Excluded Anti-Diluted and Excluded Potentially Dilutive Securities (Details)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Employee Stock Option [Member]
Options and awards excluded (in shares)	2,963	4,019
Restricted Stock [Member]
Options and awards excluded (in shares)	743	385

Note_11_Shareholders_Equity_an2

Note 11 - Shareholders' Equity and Employee Benefits (Details Textual)	2-May-15	Jan. 31, 2015	2-May-15	2-May-15	3-May-14	2-May-15	3-May-14	2-May-15	Mar. 24, 2015
	USD ($)	USD ($)	Endowment Insurance Pension Plan [Member]	Endowment Insurance Pension Plan [Member]	Endowment Insurance Pension Plan [Member]	Retirement Pension Plan [Member]	Retirement Pension Plan [Member]	Severance Plan [Member]	Stock Purchased under Employee Stock Purchase Plan Subject to Recessionary Rights [Member]
			USD ($)	CNY	USD ($)	USD ($)	USD ($)	USD ($)	Purchase Plan 2010 [Member]
									USD ($)
Defined Contribution Plan, Employer Discretionary Contribution Amount			$500,000		$500,000	$200,000	$200,000
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent			8.00%	8.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			21.00%	21.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount				16,353
Supplemental Unemployment Benefits, Severance Benefits								700,000
Defined Benefit Plan, Assets for Plan Benefits								700,000
Stock Issued During Period, Shares Employee Stock Purchase Plan									102,078
Stock Issued During Period, Price Per Share, Employee Stock Purchase Plan									$3.89
Employee-related Liabilities, Current	7,952,000	6,806,000							400,000
Deferred Compensation Share-based Arrangements, Liability, Current	$400,000

Note_11_Shareholders_Equity_an3

Note 11 - Shareholders' Equity and Employee Benefits - Condensed Consolidated Statement of Shareholders' Equity (Details) (USD $)	3 Months Ended
	2-May-15	Jan. 31, 2015
Balance	$145,476,000	$143,290,000
Unrealized (losses) gains on marketable securities, net of $0 tax during the three months ended May 2, 2015 and May 3, 2014	-19,000
Currency translation adjustments	-12,000
Stock-based compensation expense	1,734,000
Tax effect related to share awards	712,000
Net proceeds from common stock issued under share plans	153,000
Net loss	-382,000
Common Stock [Member]
Balance (in shares)	40,093,404	39,973,689
Balance	496,149,000	493,550,000
Stock-based compensation expense	1,734,000
Tax effect related to share awards	712,000
Net proceeds from common stock issued under share plans (in shares)	119,715
Net proceeds from common stock issued under share plans	153,000
Treasury Stock [Member]
Balance (in shares)	-4,659,143	-4,659,143
Balance	-88,198,000	-88,198,000
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Balance	-46,000	-27,000
Unrealized (losses) gains on marketable securities, net of $0 tax during the three months ended May 2, 2015 and May 3, 2014	-19,000
Accumulated Translation Adjustment [Member]
Balance	-1,096,000	-1,084,000
Currency translation adjustments	-12,000
Retained Earnings [Member]
Balance	-261,333,000	-260,951,000
Net loss	($382,000)

Note_12_Income_taxes_Details_T

Note 12 - Income taxes (Details Textual) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Income Tax Expense (Benefit)	$2,463	$1,419

Note_13_Segment_and_Geographic2

Note 13 - Segment and Geographical Information (Details Textual)	3 Months Ended
	2-May-15	3-May-14
Number of Reportable Segments	1
License and Other [Member]
Percentage of Revenue During Period	0.00%	6.50%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Sunjet Components Corporation [Member]
Concentration Risk, Percentage	12.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Benchmark Electronics [Member]
Concentration Risk, Percentage		11.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Benchmark Electronics [Member]
Concentration Risk, Percentage		19.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Nanning Fugui Precision [Member]
Concentration Risk, Percentage	15.00%	13.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Digi-Key Corporation [Member]
Concentration Risk, Percentage	10.00%

Note_13_Segment_and_Geographic3

Note 13 - Segment and Geographical Information - Net Revenue and Gross Profit by Segments (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Sales revenue, net	$55,912	$36,873
DTV [Member]
Sales revenue, net	21,476	6,063
Media Connectivity [Member]
Sales revenue, net	15,117	16,120
IoT Devices [Member]
Sales revenue, net	12,457	6,140
Set-top Box [Member]
Sales revenue, net	6,556	5,689
License and Other [Member]
Sales revenue, net	$306	$2,861

Note_13_Segment_and_Geographic4

Note 13 - Segment and Geographical Information - Net Revenue Based on the Ship-to Location (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Net revenue	$55,912	$36,873
Asia [Member]
Net revenue	39,669	29,246
North America [Member]
Net revenue	12,153	4,336
Europe [Member]
Net revenue	2,765	2,302
Other Regions [Member]
Net revenue	$1,325	$989

Note_13_Segment_and_Geographic5

Note 13 - Segment and Geographical Information - Net Revenue to Each Significant Country Based on the Ship-to Location (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	2-May-15	3-May-14
Sales revenue, net	$55,912	$36,873
CHINA
Sales revenue, net	22,177	15,889
UNITED STATES
Sales revenue, net	12,146	4,276
TAIWAN, PROVINCE OF CHINA
Sales revenue, net	8,919	4,248
THAILAND
Sales revenue, net	4,985	6,018
Rest of the World [Member]
Sales revenue, net	$7,685	$6,442