10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
FORM 10-Q
(MARK ONE)
(x)    Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the quarterly period ended June 29, 2013
or
(  )   Transition Report Pursuant to Section 13 or 15(d) of the Securities and Exchange Act of 1934    (No Fee Required)
Commission File No. 0-12718
SUPERTEX, INC.
(Exact name of Registrant as specified in its Charter)
California	94-2328535
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification #)
1235 Bordeaux Drive
Sunnyvale, California 94089
(Address of principal executive offices)
Registrant’s Telephone Number, Including Area Code:  (408) 222-8888
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 xNo ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§229.405 of this chapter) during the preceding 12 months (or for shorter period that the registrant was required to submit and post such files). Yes  xNo  ¨
Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Act). Check one. Large accelerated filer ¨ Accelerated filer x Non-accelerated filer ¨ Smaller Reporting Company¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes  ¨                                                                                No x
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.
Class	Outstanding onAugust 2, 2013
Common Stock, no par value	11,561,248
Exhibit index is on Page 36
Total number of pages: 36

1

SUPERTEX, INC.

QUARTERLY REPORT - FORM 10Q

Table of Contents		Page No.
	PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)
	Condensed Consolidated Statements of Income	3
	Condensed Consolidated Statements of Comprehensive Income	4
	Condensed Consolidated Balance Sheets	5
	Condensed Consolidated Statements of Cash Flows	6
	Notes to Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	31
Item 4.	Controls and Procedures	32
	PART II – OTHER INFORMATION
Item 1.	Legal Proceedings	33
Item 1A.	Risk Factors	33
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	33
Item 3.	Defaults Upon Senior Securities	34
Item 4.	Mine Safety Disclosures	34
Item 5.	Other Information	34
Item 6.	Exhibits	34
Signature		35

2

PART I - FINANCIAL INFORMATION

Item 1.  Financial Statements

SUPERTEX, INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(unaudited)

(in thousands, except per share amounts)

	Three Months Ended
	June 29,		June 30,
	2013		2012
Net sales	$	16,198	$	16,059
Cost of sales		7,466		8,565
Gross profit		8,732		7,494
Research and development		3,480		3,486
Selling, general and administrative		3,149		3,384
Total operating expenses		6,629		6,870
Income from operations		2,103		624
Interest income		409		301
Other income (expense), net		60		(99)
Income before provision for income taxes		2,572		826
(Benefit from) provision for income taxes		(314)		229
Net income	$	2,886	$	597
Net income per share
Basic	$	0.25	$	0.05
Diluted	$	0.25	$	0.05
Shares used in per share computation:
Basic		11,528		11,999
Diluted		11,585		12,001

The accompanying Notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

3

SUPERTEX, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(unaudited, in thousands)

	Three Months Ended
	June 29,		June 30,
	2013		2012
Net income	$	2,886	$	597
Other comprehensive income (loss), net of tax
Net change in unrealized gain (loss) on available-for-sale investments, net of tax effect of ($169) and ($146) for fiscal quarter ended June 29, 2013 and June 30, 2012, respectively		315		271
Reclassification adjustments for net realized gains on available-for-sale securities included in net income, net of tax effect of $53 and $4 for the fiscal quarter ended June 29, 2013 and June 30, 2012, respectively		(99)		(7)
Other comprehensive income, net of tax		216		264
Comprehensive income	$	3,102	$	861

The accompanying Notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

4

SUPERTEX, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited, in thousands)

	June 29, 2013		March 30, 2013
ASSETS
Current Assets:
Cash and cash equivalents	$	29,184	$	16,414
Short-term investments		126,456		123,847
Trade accounts receivable, net		7,688		7,335
Inventories		11,418		11,344
Prepaid expenses and other current assets		2,551		2,538
Prepaid income taxes		3,285		3,203
Deferred income taxes		7,768		7,517
Total current assets		188,350		172,198
Long-term investments		1,900		13,800
Property, plant and equipment, net		4,164		4,334
Other assets		759		787
Deferred income taxes, noncurrent		5,292		5,659
Total assets	$	200,465	$	196,778
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities:
Trade accounts payable	$	2,819	$	2,521
Accrued salaries and employee benefits		13,229		13,230
Other accrued liabilities		1,148		633
Deferred revenue		2,661		2,651
Income taxes payable		241		165
Total current liabilities		20,098		19,200
Income taxes payable, noncurrent		2,626		3,535
Deferred tax liabilities, noncurrent		115		115
Other accrued liabilities, noncurrent		579		575
Total liabilities		23,418		23,425
Commitments and contingencies (Note 8)
Shareholders’ Equity:
Preferred stock, no par value -- 10,000 shares authorized; none issued and outstanding		-		-
Common stock, no par value -- 30,000 shares authorized; issued and outstanding 11,525 shares as of June 29, 2013 and 11,526 shares as of March 30, 2013		69,237		68,389
Accumulated other comprehensive loss		(348)		(564)
Retained earnings		108,158		105,528
Total shareholders’ equity		177,047		173,353
Total liabilities and shareholders’ equity	$	200,465	$	196,778

The accompanying Notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

5

SUPERTEX, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited, in thousands)

	Three Months Ended
	June 29,		June 30,
	2013		2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	2,886	$	597
Non-cash adjustments to net income:
Depreciation and amortization		236		358
Provision for doubtful accounts and sales returns		54		130
Provision for excess and obsolete inventories		194		156
Deferred income taxes		-		(127)
Stock-based compensation		643		745
Tax (provision) benefit related to stock-based compensation plans		(12)		7
Unrealized loss from short-term investments, categorized as trading		19		97
Amortization of premium on short-term investments		586		597
Changes in operating assets and liabilities:
Trade accounts receivable		(407)		137
Inventories		(268)		1,358
Prepaid expenses and other assets		14		(92)
Prepaid income taxes		(82)		15
Trade accounts payable and accrued expenses		803		165
Deferred revenue		10		40
Income taxes payable		(833)		325
Net cash provided by operating activities		3,843		4,508
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment		(52)		(43)
Purchases of investments		(53,977)		(49,624)
Sales of investments		36,688		6,398
Maturities and redemptions of investments		26,307		32,117
Net cash provided by (used in) investing activities		8,966		(11,152)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of stock options and employee stock purchase plan		311		312
Stock repurchases		(350)		(113)
Net cash (used in) provided by financing activities		(39)		199
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		12,770		(6,445)
CASH AND CASH EQUIVALENTS:
Beginning of period		16,414		19,860
End of period	$	29,184	$	13,415
Supplemental cash flow disclosures:
Income taxes paid, net of refunds	$	599	$	7

The accompanying Notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

6

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

Note 1 – Organization and Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Supertex, Inc. (“Supertex,” the “Company,” “we,” and “us”) and its subsidiary have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America.  This financial information reflects all adjustments, which are, in the opinion of the Company’s management, of normal recurring nature and necessary to state fairly the balance sheet as of June 29, 2013 and the related statements of income, comprehensive income and cash flows for the three months ended June 29, 2013 and June 30, 2012.  The March 30, 2013 balance sheet was derived from the audited financial statements included in the fiscal 2013 Annual Report on Form 10-K, but does not include all disclosures required by GAAP in the United States of America.  All significant intercompany transactions and balances have been eliminated. 

The condensed consolidated financial statements included herein have been prepared by the Company, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”).  Certain information and footnote disclosures normally included in these financial statements have been condensed or omitted pursuant to such rules and regulations, although the Company believes the disclosures which are made are adequate to make the information presented not misleading.  These financial statements should be read in conjunction with the audited consolidated financial statements of Supertex, Inc. for the fiscal year ended March 30, 2013, which were included in the fiscal 2013 Annual Report on Form 10-K.

The preparation of financial statements in conformity with GAAP in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates, and such differences may be material to the financial statements. The results of operations for the three months ended June 29, 2013 are not necessarily indicative of the results to be expected for any future periods.

The Company reports on a fiscal year basis and it operates and reports based on quarterly periods ending on the Saturday nearest to the end of the applicable calendar quarter, except in a 53-week fiscal year, in which case the additional week falls into the fourth quarter of the fiscal year.  Fiscal 2014 will be a 52-week year.  The three months ended June 29, 2013 and June 30, 2012, both consist of thirteen weeks.

Recent Accounting Pronouncements

In February 2013, Financial Accounting Standards Board (“FASB”) issued an amendment regarding net income or other comprehensive income in financial statements.  This amendment does not change the current requirements for reporting net income or other comprehensive income in financial statements.  However, it requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about those amounts.  This amendment is effective prospectively for reporting periods beginning after December 15, 2012 (the fiscal quarter ending June 29, 2013 for the Company).  The Company adopted this guidance in its interim period ended June 29, 2013.The adoption of this guidance did not impact the Company's financial statements, as the guidance is related to disclosure only.

7

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

Note 2 – Fair Value

The Company measures its cash equivalents, short-term investments and long-term investments at fair value. Fair value is defined as the price that would be received from selling an asset and paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining fair value measurements for assets and liabilities required or permitted to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability, such as inherent risk, transfer restrictions, and risk of nonperformance.

A three-tiered fair value hierarchy has been established as the basis for considering the above assumptions and determining the inputs used in the valuation methodologies in measuring fair values.  The three levels of inputs are defined as follows:

Level 1 – Unadjusted quoted market prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2 – Observable inputs such as quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in inactive markets.

Level 3 – Valuations based on models where significant inputs are not observable. The unobservable inputs reflect the Company’s own assumptions about the factors that market participants would use.

The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs. If a financial instrument uses an input that is significant to the fair value calculation, the instrument will be categorized based upon the lowest level of input that is significant to the fair value calculation.  The Company’s financial assets and liabilities measured at fair value on a recurring basis include cash equivalents and investment securities, both short-term and long-term.

The carrying value of cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value due to their short maturities.

The Company’s money market investments, certificates of deposit purchased directly from the bank, and Non-Qualified Deferred Compensation Plan ("NQDCP") assets and liabilities are valued using Level 1 inputs. Fixed income available-for-sale portfolio, mainly consisting of municipal bonds, corporate bonds, commercial paper and certificates of deposits bought in the secondary market, are valued using Level 2 inputs.

The Company’s long-term investment isan auction rate security (“ARS”) which is collateralized by student loans. The credit rating of the ARS with a par value of $2,100,000 was downgraded from AAA to AAA with a negative outlook by Fitch in May 2013, however, it remains investment grade quality.  Therefore, the Company has concluded that the decline of $200,000in fair value of this ARS investment as of June 29, 2013 is temporary. The credit ratings of this ARS holding have not been downgraded subsequent to June 29, 2013.  Due to the lack of availability of observable market quotes for the Company’s investment of this ARS, the fair value was estimated based on a discounted cash flow model using Level 3 inputs. The assumptions used in the discounted cash flow model include estimates for interest rates, timing and amounts of cash flows, liquidity of the underlying security, expected holding periods, and contractual terms of the security. In light of the current market condition for ARS, the Company developed different scenarios for the significant inputs used in the discounted cash flow model, including but not limited to a liquidity discount of 125 and 150 basis points per

8

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

year for the current ARS market, and the timing of recovery of the ARS market from three to five years.  The Company concluded that the fair value of its ARS, which was classified as a  level 3 asset, was $1,900,000 as of June 29, 2013 net of a temporary impairment of $200,000 to par value.

The Company also considered the quality, amount of collateral, and US government guarantee for the ARS and looked to other marketplace transactions and information received from third party brokers in order to assess whether the fair value based on the discounted cash flow model is reasonable. The valuation of the Company’s investment portfolio is subject to uncertainties that are difficult to predict. Factors that may affect the Company’s valuation include changes to credit ratings of the security as well as the underlying assets supporting that security, rates of default of the underlying assets, underlying collateral values, discount rates, counterparty risk and ongoing strength, and quality of market credit and liquidity. Significant inputs to the investment valuation are unobservable in the active markets and therefore the Company’s ARS is classified as Level 3 in the hierarchy.

The following tables summarize assets and liabilities measured at fair value on a recurring basis as of June 29, 2013 and March 30, 2013, excluding accrued interest (in thousands):

	June 29, 2013
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	25,729	(1)	$	-	$	-	$	25,729
Municipal bonds		-			82,398		-		82,398
Corporate bonds		-			26,394		-		26,394
Certificates of deposits		5,075			1,406		-		6,481
Commercial paper		-			1,498		-		1,498
Equity mutual funds related to NQDCP		9,685			-		-		9,685
Long-term investments in ARS		-			-		1,900		1,900
Total assets at fair value	$	40,489		$	111,696	$	1,900	$	154,085
Liabilities
Obligation related to NQDCP	$	9,685		$	-	$	-	$	9,685
	March 30, 2013
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	13,476	(1)	$	-	$	-	$	13,476
Municipal bonds		-			58,658		-		58,658
Corporate bonds		-			25,825		-		25,825
Government agency bonds		-			16,187		-		16,187
Certificate of deposits		3,459			4,300		-		7,759
Commercial Papers					5,745				5,745
Equity mutual funds related to NQDCP		9,673			-		-		9,673
Long-term investments in ARS		-			-		13,800		13,800
Total assets at fair value	$	26,608		$	110,715	$	13,800	$	151,123
Liabilities
Obligation related to NQDCP	$	9,673		$	-	$	-	$	9,673

9

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

^{_________________________}

(1) Money market funds of $25,729,000 and $13,476,000 were classified as cash equivalents as of June 29, 2013 and March 30, 2013, respectively.

There were no significant transfers between Level 1, Level 2 and Level 3 during the three months ended June 29, 2013 or June 30, 2012. The following table includes the activity for Auction Rate Securities that are classified as Level 3 of the valuation hierarchy (in thousands):

	Three Months Ended
	June 29,		June 30,
	2013		2012
Beginning balance of ARS classified as Level 3	$	13,800	$	25,900
Redemption of investments in ARS at par		(12,950)		(12,750)
Reversals of unrealized losses due to redemptions		970		250
Change in fair value of existing ARS		80		200
Ending balance of ARS classified as Level 3	$	1,900	$	13,600

The Company transfers investments into and out of levels within the fair value hierarchy based on a change in circumstances at the end of the fiscal month.

During the three months ended June 29, 2013, the Company received $12,950,000in proceeds for the redemptions at par value ofthe ARS with a carrying value at the time of $11,900,000. See Note 3 for further discussion of the Company’s ARS.

10

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

Note 3 – Cash and Cash Equivalents and Investments

The Company’s cash equivalents consist primarily of investments in money market funds as follows (in thousands):

	June 29, 2013		March 30, 2013
Cash	$	3,455	$	2,938
Cash equivalents:
Money market funds		25,729		13,476
Total cash and cash equivalents	$	29,184	$	16,414

The Company’s portfolio of short-term and long-term investments is as follows (in thousands):

	June 29, 2013
		Amortized		Unrealized		Unrealized		Carrying
		Cost		Gain		Loss		Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	9,685	$	-	$	-	$	9,685
Available-for-sale securities:
Municipal bonds		82,590		62		(254)		82,398
Corporate bonds		26,547		43		(196)		26,394
Certificates of deposits		6,478		3		-		6,481
Commercial papers		1,498		-		-		1,498
Total short-term investments	$	126,798	$	108	$	(450)	$	126,456
Long-term investments:
ARS available-for sale securities	$	2,100	$	-	$	(200)	$	1,900
	March 30, 2013
		Amortized		Unrealized		Unrealized		Carrying
		Cost		Gain		Loss		Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	9,673	$	-	$	-	$	9,673
Available-for-sale securities:
Municipal bonds		58,524		156		(22)		58,658
Corporate bonds		25,667		161		(3)		25,825
Government agency bonds		16,106		82		(1)		16,187
Certificates of deposits		7,758		5		(4)		7,759
Commercial Papers		5,743		2		-		5,745
Total short-term investments	$	123,471	$	406	$	(30)	$	123,847
Long-term investments:
ARS available-for sale securities	$	15,050	$	-	$	(1,250)	$	13,800

11

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

The Company’s short-term and long-term investments by contractual maturity are as follows (in thousands):

	June 29, 2013		March 30, 2013
Short-term investment:
Trading securities:
Due in one year or less	$	9,685	$	9,673
Available-for-sale securities:
Due in 12 months or less		32,590		45,190
Due in 12 to 24 months		38,518		23,019
Due in 24 to 36 months		29,556		32,345
Due in 36 to 49 months		16,107		13,620
Total short-term investments	$	126,456	$	123,847
Long-term investment:
Available-for-sale securities at fair value:
Due after ten years	$	1,900	$	13,800
Total long-term investments	$	1,900	$	13,800

Short-term investments classified as trading securities consisted entirely of investments in mutual funds held by the Company’s NQDCP. Unrealized gains (losses) on trading securities are recorded in the Condensed Consolidated Statements of Income. Unrealized losses on trading securities were $19,000for the three months ended June 29, 2013 compared to $97,000for the same period of the prior fiscal year.

The Company’s available-for-sale portfolio as of June 29, 2013 was comprised of municipal bonds, corporate bonds, commercial paper, certificates of deposits and ARS. Unrealized gains (losses) on available-for-sale securities are recorded in other comprehensive income (loss) as increases (declines) in fair values and are considered to be temporary.

Realized gains (losses) on the sale of available-for-sale securities are determined by the specific identification method and are reflected in the interest income line item on the condensed consolidated statements of income. During the three months ended June 29, 2013, the Company disposed of short-term available-for-sale securities totaling $50,012,000 compared to $25,765,000for the same period of the prior fiscal year.  The net realized gainof these transactions was $152,000for the three months ended June 29, 2013. For the three months ended June 30, 2012, such gain was immaterial.

The Company’s ARS has a contractual maturityof24 years. This security is in the form of auction rate bonds whose interest rate had historically been reset every thirty-five days through an auction process. At the end of each reset period, investors could sell or continue to hold the security at par. ThisARS held by the Company is backed by pools of student loans and is primarily guaranteed by the U.S. Department of Education, although the credit rating of thisARS with a par value of $2,100,000 was reduced from AAA to AAA with a negative outlook by Fitch in May 2013. 

The ARS with a par value of $2,100,000, whose carrying value was $1,900,000,  was classified as a  non-current asset and was presented as a  long-term investment on the Company’s balance sheet as of June 29, 2013.

The Company has concluded that the decline in fair value of the ARS investment as of June 29, 2013 is considered to be temporary in part due to the following:

12

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

· thisARS is of investment grade credit quality and a significant portion of itis collateralized and guaranteed by the U.S. Department of Education;

· as of June 29, 2013, there had been no defaults on the ARS held by the Company;

· the credit rating of this ARS was downgraded from AAA to AAA with a negative outlook by Fitch in May 2013,  however, it is still considered to be investment grade. There has been no change of credit rating subsequent to June 29, 2013.

· the Company has the intent and ability to hold this investment until the anticipated recovery in market value occurs or it is redeemed at par value; and

· to the extent the Company’s other investments in ARS have been redeemed, they were all redeemed at par value. The Company received ARS redemptions of $13,000,000,$4,700,000 and  $36,450,000, all at par valuein fiscal years 2013, 2012 and 2011, respectively. Additionally, during the three months ended June 29, 2013,  one of its ARS was fully redeemed and the other, which is currently held, was partially redeemed at par value with a combined total of$12,950,000.  

If uncertainties in the credit and capital markets continue or these markets deteriorate further, the Company may incur additional temporary impairment to its ARS holding. The Company will continue to monitor its ARS holding and may be required to record an impairment charge through the income statement if the decline in fair value is determined to be other-than-temporary or the credit quality of its ARS holding declines further.

During the quarter ended December 29, 2012, the Company loaned $300,000under a convertible promissory note to a private startup company developingproducts based on  anew technology.This private startup company uses the Company's ICs for its prototype systems.Sales to date have not been material for the Company.  This loan was recorded as a long term asset as of June 29, 2013. This unsecured loan accrues simple interest at a 5% annual rate with principal and accrued interest convertible at the option of the Company to preferred stock at a discount and the loan matures on December 31, 2013. The conversion feature is automatic if the private company raises$4,000,000  of additional capital, including the note, prior to December 31, 2013.  The Company also has the option to invest an additional $1,700,000 in that startup company's stock in the event of certain equity financings.  The Company did not own any stock in the private company as of June 29, 2013.The Company expects the note to be either automatically or voluntarily converted to preferred stock on or prior to maturity and therefore it is categorized as a long-term asset.

Note 4 – Inventories

The Company’s inventories consist of high technology semiconductor devicesthat are specialized in nature, subject to rapid technological obsolescence, and sold in a highly competitive industry.  Inventory balances at the end of each period are stated at the lower of cost (determined on a first-in, first-out basis) or net realizable value.

Inventories consist of (in thousands):

	June 29, 2013		March 30, 2013
Raw materials	$	442	$	470
Work-in-process		7,592		7,310
Finished goods		2,104		2,324
Finished goods at distributors and on consignment		1,280		1,240
Total inventories	$	11,418	$	11,344

13

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

The Company wrote down excess and obsolete inventory totaling $194,000for the three months ended June 29, 2013 compared to $156,000for the same period of the prior fiscal year. The Company sold previously written-down inventory of  $489,000 for the three months ended June 29, 2013 compared to$345,000 for the same period last fiscal year.

Note 5 - Stock-Based Compensation

The stock-based compensation expense for the three months ended June 29, 2013 was $643,000, compared to $745,000 for the same period of the prior fiscal year.

The Company granted options to employees with an estimated grant date fair value of $2,198,000in the three months ended June 29, 2013.  The Company did not grant stock options in the same period of the prior fiscal year. As of June 29, 2013, the unrecorded stock-based compensation related to stock options was $4,736,000 (net of estimated forfeitures) and will be recognized over an estimated weighted average amortization period of approximately 2.1 years.

The Company’s shareholders approved the adoption of the 2001 Stock Option Plan (the “2001 Plan”) and the reservation of 2,000,000 shares of common stock for issuance under 2001 Plan at the August 17, 2001 annual meeting of shareholders. Options granted under the 2001 Plan were granted at the fair market value of the Company’s common stock on the date of grant and generally expired seven years from the date of grant or thirty days after termination of service, whichever occurs first.  The options generally were exercisable beginning one year from date of grant and generally vest ratably over a five-year period. On August 24, 2006, the Company’s board of directors approved a change in grant policy of the 2001 Plan to only grant non-statutory stock options to better align the Company’s compensation plan to employee incentives and to Company objectives. On August 17, 2007, the Company’s board of directors approved that all future stock option grants would have a ten-year term, which is within the guidelines of the Company’s 2001 Plan, subject to earlier expiration thirty days after termination of service. As of August 14, 2009, no further options may be granted under the 2001 Plan.

The Company’s shareholders approved the adoption of the 2009 Equity Incentive Plan (the “2009 Plan”) at the August 14, 2009 annual meeting for shareholders. Under the 2009 Plan, the total number of shares of Company common stock reserved for issuance consists of 1,000,000 shares plus (1) the 159,509 shares which remained authorized for issuance under the 2001 Plan but which were not subject to outstanding stock awards as of August 14, 2009, and (2) those of the 1,440,400 shares, subject to stock awards outstanding under the 2001 Plan as of August 14, 2009, that terminate prior to exercise and would otherwise be returned to the share reserves under the 2001 Plan, with the total shares in addition to the 1,000,000 shares thus being up to a maximum of 1,599,909 shares. The 2009 Plan allows the Company to continue its prior option practices under the 2001 Plan to grant non-statutory options to key employees with an exercise price equal to the fair market value of the Company’s stock on the date of grant. The Company’s options typically have a term of ten years and vest in 20% installmentson each of the firstfiveanniversaries of the date of grant. The 2009 Plan also provides the Company with the flexibility in designing equity incentives, including restricted stock awards, stock appreciation rights, restricted stock unit awards, performance stock awards, and performance cash awards.

14

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

The following table summarizes the activities under the 2001 and 2009 Plans for the threemonths ended June 29, 2013:  

		Options Outstanding
	Available for Grant	Number of Shares		Weighted Average Exercise Price
Balance, March 30, 2013	797,151	1,532,640	$	25.29
Granted	(227,000)	227,000		22.15
Exercised	-	(12,849)		21.11
Canceled	70,420	(70,420)		35.66
Balance, June 29, 2013	640,571	1,676,371	$	24.46

The weighted average fair value of options, as determined under the authoritative guidance for stock compensation, granted to employees under the 2009 Plan during the three months ended June 29, 2013  was$9.68per share. The Company did not grant stock options during the three months ended June 30, 2012. The total intrinsic value of options exercised (which is the amount by which the stock price exceeded the exercise price of the option on the date of the exercise) during the three months ended June 29, 2013 was $13,000.  During the three months ended June 29, 2013, the amount of cash received from employees as a result of employee stock option exercises was $271,000.

The options outstanding and exercisable as of June 29, 2013, under the 2001 and 2009 Plans are in the following exercise price ranges:

					Options Outstanding				Options Exercisable
Range of Exercise Prices					Number Outstanding	Weighted-Average Remaining Contractual Life (Years)		Weighted-Average Exercise Price	Number Outstanding		Weighted-Average Exercise Price
$	17.29	-	$	19.99	303,700	8.44	$	18.88	38,560	$	18.95
	20.00	-		24.99	826,671	7.42		21.66	367,603		21.24
	25.00	-		29.99	289,600	5.61		26.94	239,888		26.82
	30.00	-		34.99	84,500	4.28		33.93	84,500		33.93
	35.00	-		39.99	87,800	3.95		35.83	87,800		35.83
	40.00	-		44.99	68,100	0.67		41.05	68,100		41.05
	45.00	-		46.92	16,000	0.42		46.92	16,000		46.92
$	17.29	-	$	46.92	1,676,371	6.61	$	24.46	902,451	$	27.18

Options outstanding and options exercisable under the option plans had a total intrinsic value of $3,236,000 and $1,122,000 as of June 29, 2013.

2000 Employee Stock Purchase Plan (“ESPP”).Under the ESPP, eligible employees may elect to withhold up to 20% of their cash compensation to purchase shares of the Company’s common stock at a price equal to 95% of the market value of the stock at the time of purchase, which is at the end of the six-month offering period.  An eligible employee may purchase no more than 500 shares during any six-month offering period. For the three

15

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

months ended June 29, 2013, the amount of cash received from employees as a result of ESPP purchases was$40,000compared to $63,000for the same period of the prior fiscal year.

Note 6 – Income Taxes

The income tax benefit for the three months ended June 29, 2013 was $314,000 on income before tax of $2,572,000 at the effective tax benefit rate of 12% compared to a tax provision of $229,000 on incomebefore tax of $826,000 at the effective tax rate of 28% in the firstquarter of the prior fiscal year.

The income tax benefit reported for the three months ended June 29, 2013 resulted primarily from $949,000 of income tax reserve releases due to expirations of statute of limitations on uncertain tax positions. There were no such statute of limitations expirations in the first quarter of the prior fiscal year.

The income tax benefit or provision for interim periods may not reflect the Company’s computed estimated annual effective tax rate and differs from the taxes computed at the federal and state statutory rates primarily due to the effects of foreign rate differentials, non-deductible stock-based compensation expense, tax-exempt interest income, R&D tax credits, tax contingencies, and the domestic production activities deduction.

During the threemonths ended June 29, 2013,  the liability for uncertain income tax positions excluding accrued interest and penalties decreased from $3,160,000 to $2,420,000. Of the total $2,420,000 of unrecognized tax benefits, $1,768,000 represents the amount that, if recognized, would favorably affect the Company’s effective income tax rate in a future period. The Company cannot conclude on the range of cash payments that will be made within the next twelve months associated with its uncertain tax positions.

The Company records interest and penalties related to unrecognized tax benefits in income tax expense. As ofJune 29, 2013, the Company had approximately $295,000 accrued for estimated interest and $159,000 for estimated penalties related to uncertain tax positions. For the threemonths ended June 29, 2013, the Company recorded estimated interest reduction of $143,000 and estimated penalties of $2,000.  

The balance of unrecognized income tax benefits, including accrued interest and accrued penalties on June 29, 2013, was approximately $145,000related to tax positions for which it is reasonably possible that the statute of limitations will expire in various jurisdictions within the next twelve months.

The Company’s major tax jurisdictions are the United States federal, State of California and Hong Kong, and the Company’s income tax returns are no longer subject to examination by these taxing authorities for fiscal years before2002.

Note 7 - Net Income per Share  

Basic earnings per share (“EPS”) is computed as net income divided by the weighted average number of common shares outstanding for the period.  Diluted EPS reflects the potential dilution that could occur from common shares that may be issued through stock options and ESPP only, since the Company does not have warrants or any other convertible securities outstanding. 

16

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

A reconciliation of the numerator and denominator of basic and diluted earnings per share is provided as follows (in thousands, except per share amounts):

	Three Months Ended
	June 29,		June 30,
	2013		2012
BASIC:
Net income	$	2,886	$	597
Weighted average shares outstanding for the period		11,528		11,999
Net income per share	$	0.25	$	0.05
DILUTED:
Net income	$	2,886	$	597
Weighted average shares outstanding for the period		11,528		11,999
Effect of dilutive securities: stock options and ESPP		57		2
Total		11,585		12,001
Net income per share	$	0.25	$	0.05

Options to purchase 1,235,439 shares of the Company’s common stock at an average price of $26.16 per sharefor the three months ended June 29, 2013 were outstanding but were not included in the computation of diluted earnings per share because their effect would have been anti-dilutive.

For the three months ended June 30, 2012, options to purchase 1,656,126 shares of the Company’s common stock at an average price of $26.57 per sharewere outstanding but were not included in the computation of diluted earnings per share because their effect would have been anti-dilutive.

Note 8 – Commitments and Contingencies

Indemnification

As is customary in the Company’s industry, the Company has agreed to defend certain customers, distributors, suppliers, and subcontractors against certain claims which third parties may assert that its products allegedly infringe on certain of their intellectual property rights, including patents, trademarks, trade secrets, or copyrights.  The Company has agreed to pay certain amounts of any resulting damage awards and typically has the option to replace any infringing product with non-infringing product.  The terms of these indemnification obligations are generally perpetual from the effective date of the agreement.  In certain cases, there are limits on and exceptions to the Company’s potential liability for indemnification relating to intellectual property infringement claims.  The Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements.  The Company has never paid any damage awards nor has it been required to defend any claims related to its indemnification obligations, and accordingly, it has not accrued any amounts for indemnification obligations.  However, there can be no assurance that the Company will not have any financial exposure under those indemnification obligations in the future.

17

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

Legal Proceedings

From time to time the Company is subject to possible claims or assessments from third parties arising in the normal course of business.  Management has reviewed such possible claims and assessments with the Company’s outside legal counsel and believes that it is unlikely that they will result in any material adverse effect on the Company’s financial condition, results of operations, or cash flows.

Product Return Reserve

The Company’s standard policy is to accept the return of defective parts for credit from non-distributor customers for a period of 90 days from date of shipment. This period may be extended in certain cases. The Company records estimated product returns as a reduction to revenue in the same period as the related revenues are recorded. These estimates are based on historical experience, analysis of outstanding returned material authorizations and allowance authorizations data.

The reductions to revenue for estimated product returns for the three months ended June 29, 2013 and June 30, 2012 are as follows (in thousands):

Description		Balance at Beginning of Period		Charge	Deductions and Other(1)		Balance at End of Period
Three months ended June 29, 2013	$	230	$	60	$	(28)	$	262
Three months ended June 30, 2012	$	213	$	134	$	(8)	$	339

___________________

⁽¹⁾ Represents amounts charged to the allowance for sales returns.  

Warranty Reserve

While the Company’s sales returns are historically within the allowance established, it cannot guarantee that it will continue to experience the same return rates that it has had in the past.  Any significant increase in product failure rates and the resulting sales returns could have a material adverse effect on the operating results for the period or periods in which such returns materialize.

For sales through distributors, the Company’s policy is to replace under warranty defective products at its own expense for a period of 90 days from date of shipment. This period may be extended in certain cases. This liability is limited to replacement of the product along with freight and delivery costs. In certain cases, the Company may pay for rework.

The Company reserves for estimated warranty costs in the same period as the related revenues are recorded. The estimate is based on historical expenses and is recorded as cost of sales. The warranty reserve was $53,000 as of June 29, 2013. Such amount was $54,000 as of March 30, 2013.

18

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

Operating Lease Obligations

The Company’s future minimum lease payments under non-cancelable operating leases as of June 29, 2013 are as follows (in thousands):

Payment Due by Fiscal Year	Operating Lease
2014 (remaining 9 months)		679
2015		865
2016		787
2017		55
	$	2,386

The Company leases facilities under non-cancelable lease agreements expiring at various times through April 2016.  Rental expense net of sublease income for the three months ended June 29, 2013 amounted to $257,000 compared to rental expense of  $281,000 for the same period of last fiscal year.

Note 9 – Common Stock Repurchase

Common Stock Repurchase

Stock repurchase activities for the three months ended June 29, 2013 and June 30, 2012 are as follows:

	Three Months Ended
	June 29,		June 30,
	2013		2012
Number of shares repurchased		16,000		6,000
Cost of shares repurchased	$	350,000	$	113,000
Average price per share	$	22.00	$	17.97

In January 2011, the Board of Directors designated $60,000,000 of its cash, cash equivalents and investments for a major stock repurchase during the period from January 2011 through March 2013, and accordingly, increased the Company’s share repurchase program from approximately 556,000 shares to 2,500,000 shares. From January 2011 through March 30, 2013, the Company applied approximately $32,079,000 to stock repurchases. 

The amended repurchase program has no expiration date except when an aggregate of 2,500,000 shares have been repurchased, either in the open market or through private transactions. Under this program, cumulatively the Company had repurchased approximately 1,688,000 shares for $32,429,000 as of June 29, 2013, leaving approximately 812,000 shares authorized for future repurchase under the Company’s current repurchase program.

Since the inception of the Company’s initial share repurchase program in 1992 through June 29, 2013, the Company has repurchased a total of approximately 4,032,000 shares of the common stock for an aggregate cost of $68,980,000 under its share repurchase programs. Upon their repurchase, shares are restored to the status of authorized but unissued shares.

19

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS– (CONTINUED)

(unaudited)

Note 10 – Segment Information

The Company operates in one reportable segment comprising the design, development, manufacturing and marketing of high voltage semiconductor devices including analog and mixed signal integrated circuits.  The Company’s chief operating decision maker, who is currently the Company’s chief executive officer, reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance. 

The Company’s principal markets are in Asia, the United States, and Europe.  Below is a summary of sales by major geographic area for the three months ended June 29, 2013 and June 30, 2012(in thousands):

	Three Months Ended
	June 29,		June 30,
Net Sales	2013		2012
China	$	5,003	$	3,838
United States		4,955		5,379
Asia (excluding China & Singapore)		2,299		2,927
Singapore		2,157		2,012
Europe		1,758		1,743
Other		26		160
Net Sales	$	16,198	$	16,059

Net property, plant and equipment by country as of June 29, 2013 and March 30, 2013 are as follows (in thousands):

	June 29, 2013		March 30, 2013
United States	$	3,376	$	3,483
Hong Kong		788		851
Property, plant and equipment, net	$	4,164	$	4,334

Note 11 – Significant Customers 

The Company sells its products to OEMs through its direct sales and marketing personnel, and through its independent sales representatives and distributors. Revenue from sales to distributors and the related cost of sales are recognized only upon resale to end-user customers, which is on a sell-through basis.

A major medical equipment company and a distributor accounted for approximately 12%  and 10%, respectively, of net sales for the three months ended June 29, 2013.  Nearly all of the sales to the medical equipment company were through distributors and contract manufacturers. None of the sales attributed to the significant Company distributor were included in the re-sales attributed to the medical equipment company. The medical equipment company also accounted for approximately 11% of net sales for thethree months ended June 30, 2012.  

There were no other customers that the Company believes accounted for more than 10% of the Company’s net sales for the three months ended June 29, 2013 and June 30, 2012.

20

Item 2.  Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in conjunction with the Condensed Consolidated Financial Statements and related Notes thereto contained elsewhere in this Report.  The information contained in this quarterly report on Form 10-Q is not a complete description of our business or the risks associated with an investment in our common stock.  You are urged to carefully review and consider the various disclosures we made in this Report and in other reports filed with the SEC, including the annual report on Form 10-K for the fiscal year ended March 30, 2013.

Cautionary Statement Regarding Forward Looking Statements

This Quarterly Report on Form 10-Q includes forward-looking statements.  These forward-looking statements are not historical facts, and are based on current expectations, estimates, and projections about our industry, our beliefs, our assumptions, and our goals and objectives.  Words such as "anticipates," "expects," "intends," "plans," "believes," "seeks," and "estimates," and variations of these words and similar expressions are intended to identify forward-lookingstatements. Examples of the kinds of forward-looking statements in this report include statements regarding the following: (1) our expectations that through the introduction of our new integrated solutions along with our discrete building block product offerings, we will continue to be a major player in the medical ultrasound market and that  sales of our medical ultrasound products will increase sequentially in the second fiscal quarter due to seasonality and from sales of our new products; (2) our belief that there are significant growth opportunities for the medical ultrasound market in China, Korea and India; (3) our beliefs that the decline LED TV backlighting driver sales in the second fiscal quarter is temporary and sales of LED driver ICs for general lighting and backlighting will grow as they are designed in new lighting applications and that such sales will increase sequentially in the second fiscalquarter in both backlighting and general lighting; (4) our expectation of sales of printer head drivers being flat sequentially in the second fiscal quarter; (5) our belief that R&D expenses as a percentage of net sales may fluctuate from quarter to quarter; (6) our belief that existing cash and cash equivalents and short-term investments together with cash flow from operations will be sufficient to meet our liquidity and capital requirements through the next twelve months; (7) our belief that we have substantial production capacity in place, except for certain capital equipment that we plan to procure, to handle our forecasted business in fiscal 2014; (8) our belief that the credit quality of the auction-rate security (“ARS”) we hold is high and our expectation that we will receive the full principal associated with this ARS;(9) our belief that the auction failures of our ARS will not materially impact our ability to fund our working capital needs, capital expenditures, or other business requirements; (10) our belief that the estimated range of fair values of our ARS is appropriate; (11) our lack of intention to sell our ARS below par value and our view that it is more likely than not that we will not be required to sell our ARS until its value returns to par; (12) our belief that the decline in our ARS fair value due to the lack of liquidity is temporary and the credit risk of default or not redeeming at par is very low; (13) our belief that the credit ratings of  our ARS would remain relatively high following any decline in the credit rating of U.S. government obligations; (14) our belief that our exposure to foreign currency risk is relatively small; (15) our belief that it is unlikely that any legal claims will result in a material adverse effect on our financial position, results of operations or cash flows; and (16) our expectation that our loan to a private company will either be automatically or voluntarily converted into equity of that company prior to its maturity.

These statements are only predictions, are not guarantees of future performance, and are subject to risks, uncertainties, and other factors, some of which are beyond our control and are difficult to predict, and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements.  These risks and uncertainties include material adverse changes in the demand for our customer’s products in which the Company’s products are used; that competition to supply semiconductor devices in the markets in which the Company competes increases and causes price erosion; that demand does not materialize and increase for recently released customer products incorporating the Company’s products; that we have delays in

21

developing and releasing into production our planned new products; that there could be unexpected manufacturing issues as production ramps up; that the demand for the Company’s products or results of its product development changes such that it would be unwise not to decrease research and development; that the IRS will determine that more US income was realized than the Company claimed or that fewer expenses were allowable; that some of the Company’s equipment will be unexpectedly damaged or become obsolete, thereby requiring replacement; that Federal deficit issues will not result in substantial reductions to the credit rating of U.S. government obligations which in turn would materially affect our auction rate security;  and that the private company we invested in will raise substantial equity capital from third parties during calendar 2013; as well as those described in "Factors Which May Affect Operating Results" under Item 1A of Part I , “Risk Factors” in the Company’s  annual report on Form 10-K for the fiscal year ended March 30, 2013, as supplemented by the risk factor contained in Part II, Section 1A of this Form 10-Q. The information included in this Form 10-Q is provided as of the filing date with the SEC and future events or circumstances could differ significantly from the forward-looking statements included herein.  Accordingly, the readers are cautioned not to place undue reliance on such statements. The Company undertakes no obligation to update any forward-looking statement as a result of new information, future events, or otherwise, except as required by law.

Critical Accounting Policies

Our critical accounting policies are those that both (1) are most important to the portrayal of the financial condition and results of operations and (2) require management’s most difficult, subjective, or complex judgments, often requiring estimates about matters that are inherently uncertain. There have been no material changes from the methodology applied by management for critical accounting estimates previously disclosed in our fiscal 2013 Annual Report on Form 10-K. 

Overview

We design, develop, manufacture, and market integrated circuits (“ICs”) and application specific discrete DMOS transistors, utilizing state-of-the-art high voltage DMOS, HVCMOS and HVBiCMOS analog and mixed signal technologies.  We are an industry leader in certain high voltage ICs (HVCMOS and HVBiCMOS) which take advantage of the best features of CMOS, bipolar and DMOS technologies and integrate them into a  single IC.  These ICs are used for medical ultrasound imaging, LED backlighting for LCD TVs and computer monitors, LED general lighting, telecommunications, printer, flat panel display, industrial and consumer product industries. We also offer custom design and production of application specific ICs as well as custom processing services using customer-owned designs and mask tooling with our process technologies. Our current growth strategy relies on our ability to continuously and successfully introduce and market new innovative products that meet our customers’ requirements.

Results of Operations

Net Sales 

We operate in one reportable segment comprising the design, development, manufacturing and marketing of high voltage semiconductor devices including analog and mixed signal ICs and specialty double-diffused metal oxide semiconductor (“DMOS”) transistors.We have a broad customer base, which in some cases manufactures electronic end products and equipment spanning multiple markets. As such, the assignment of revenue to the markets described in the overview above requires the use of estimates, judgment, and extrapolation. Actual results may differ slightly from those reported here.  

Net sales for the three months ended June 29, 2013 were $16,198,000, a 1% increase, compared to $16,059,000 for the same period of the prior fiscal year and an 11% increase sequentially. The year-over-year quarterly

22

increase was primarily due to increased sales of our medical ultrasound products including our new advanced high density analog switches, our LED backlighting drivers for TVs and high end monitors and our LED drivers for general lighting applications, and various products within our Industrial/other market including a new custom product for audio. These increases were partially offset by lower salesof ICs for a military system and high voltage amplifier ICs for optical MEMS applications. In addition, last year we supplied drivers for prototype OLED manufacturing equipment which our customers used to develop OLED applications, certain of which are now in late stages of a design and test cycle, and if our customers determine in the typical timeframe to introduce these applications in volume, we expect resumption of our driver sales for the OLED manufacturing equipmentnext fiscal year.

The sequential increases were driven by higher sales in medical products primarily from higher seasonal demand and shipments of our new advanced analog switches, from higher sales of our printer head drivers for ceramic and textile printers as well as for printing 3D, and from various products within our Industrial/other target market including a new custom product for audio. These sales increases more than offset sales reductions of LED drivers for backlighting high-end monitors and LED TVscaused primarily by seasonal decline.

The table below shows our estimate of the breakdown of net sales by end market for the three months ended June 29, 2013,  June 30, 2012, and March 30, 2013, as well as year-over-year and sequential percentage changes (in thousands except percentages):

	Three Months Ended
	June 29,		March 30,		June 30,		Sequential	Year-Over-Year
	2013		2013		2012		Change	Change
Medical Electronics	$	6,013	$	5,308	$	5,492	13%	9%
EL/Printers		4,196		3,220		5,184	30%	-19%
Industrial/Other		2,902		2,398		2,438	21%	19%
LED Lighting		2,228		2,636		1,349	-15%	65%
Telecom		859		1,087		1,596	-21%	-46%
Net Sales	$	16,198	$	14,649	$	16,059	11%	1%

	Three Months Ended
	June 29,	March 30,	June 30,
Net Sales	2013	2013	2012
Medical Electronics	37%	36%	34%
EL/Printers	26%	22%	32%
Industrial/Other	18%	17%	15%
LED Lighting	14%	18%	9%
Telecom	5%	7%	10%
Net Sales	100%	100%	100%

Our medical electronics product family, primarily for ultrasound imaging, accounted for the largest sales of all of our five target markets for the three months ended June 29, 2013, March 30, 2013 and June 30, 2012. Sales to this market for the three months ended June 29, 2013 increased 9% compared to the same period last fiscal year primarily due to higher shipments of our analog switches, including our new advanced devices. Medical electronics product sales increased 13% compared to the prior quarter for the same reason and also due to normal seasonality demand increase. During the past fiscal year, sales to this market have returned to their

23

normal seasonality pattern, that being greater shipments in the first half of the fiscal year and lesser shipments in the second half. We expect sales of medical products to be sequentially higher in our second fiscal quarter, in line with seasonal trends and new product ramp-ups. 

In recent years, the overall ultrasound imaging system market has been shifting from big console systems to transportable and hand- held units, which, along with product upgrades for cart-based consoles and large stationary systemshave driven growth.  Because of space and power constraints of the transportable and hand-held units, there are increasing demands for higher integration, and with our high voltage, low power, CMOS IC technology we have been among the most qualified to support thisdemand. Geographically, the imaging equipment market is expanding very rapidly in China, India and many African countries.  Traditionally, OEMs in the United States, Germany, and Japan have been the main developers and manufacturers of medical ultrasound imaging machines to whom we have sold our products successfully.  Companies in those regions continue to grow and develop new machines although most of them have moved their operations to Asia to reduce cost. In addition, we see significant growth opportunities with Chinese and Korean medical ultrasound imaging machine manufacturers. We are expanding our product development activities and product offerings to capitalize on these exciting growth opportunities.  Through the introduction of our new integrated solutions complemented by our discrete transistor array building block product offerings, we believe we will continue to be a major player in this market.

Sales of our product offerings for the EL/Printers market, which consist of EL inverter ICs, printer head ICs, flat panel display ICs and custom processing services, for the three months ended June 29, 2013 were lower by 19% compared to the same period in the last fiscal year and increased 30% sequentially.  The year-over-year quarterly sales reduction was due primarily to reduced sales of printer head drivers for OLED manufacturing equipment and reduced sales of ICs for a military display application. Sales of drivers for OLED prototype manufacturing equipment occurred from the fourth quarter of fiscal 2012 through the second quarter of fiscal 2013. As the OLED prototype machines had been built, our driver shipments discontinued while customers developed OLED applications using that equipment.  For example, one of our customers used its equipment to develop a 50+ inch UltraHD 4K OLED TV which was exhibited at the 2013 Consumer Electronics Show in Las Vegas. Ourcustomersare currently assessing the market for volume production of various OLED applications.  The net sequential increase in sales is primarily due to higher sales of our printer head drivers for a new series of printers for printing on ceramics and textiles, as well as printers for 3D printing, and increased custom processing services. We expect sales of our high voltage printer head drivers to be flat sequentially in the second fiscal quarter. 

Sales in the industrial and other markets for the three months ended June 29, 2013 increased 19% compared to the same period in the prior fiscal year and increased 21% sequentially. The year-over-year and sequential quarterly increases were due to higher shipments of various products including a custom product for an audio application, and the year-over-year increase also included greater custom processing services. 

The year-over-year quarterly sales increase of LED driver ICs of 65% resulted from sales to both a high-end computer monitor backlighting and a  TV application, and to a lesser extent, sales of drivers for general lighting. The sequential reduction in sales was due to lower demand for backlighting drivers of both the high end monitor and the TV application. We expect the reduction in sales for the TV backlighting may be temporary and we believe that sales of LED driver ICs for backlighting and general lighting will grow as our new products are being designed into new applications. For the second fiscal quarter of 2014, we expect sales of our LED drivers for backlighting and general lighting toincreasesequentially.  

Sales to the telecom market for the three months ended June 29, 2013 decreased 46% compared to the same period of the prior fiscal year and 21% sequentially. These decreases were in large part due to lower shipments of high voltage amplifier ICs for optical MEMS applications and lower custom processing services.

24

Our principal markets are in Asia, the U.S., and Europe.  Sales by geographic regions as well as year-over-year and sequential percentage changes were as follows, where international sales include sales to U.S. based customers if the products are delivered to their contract manufacturers outside the U.S. (in thousands except percentages):

	Three Months Ended
	June 29,		March 30,		June 30,		Sequential	Year-Over-Year
	2013		2013		2012		Change	Change
China	$	5,003	$	4,311	$	3,838	16%	30%
United States		4,955		4,722		5,379	5%	-8%
Asia (excluding China & Singapore)		2,299		2,289		2,927	0%	-21%
Singapore		2,157		1,463		2,012	47%	7%
Europe		1,758		1,735		1,743	1%	1%
Other		26		129		160	-80%	-84%
Net Sales	$	16,198	$	14,649	$	16,059	11%	1%
International Sales	$	11,243	$	9,927	$	10,680	13%	5%
Domestic Sales		4,955		4,722		5,379	5%	-8%
Net Sales	$	16,198	$	14,649	$	16,059	11%	1%

The5% increase in total year-over-year net sales to international customers resulted primarily from our medical ultrasound products and our LED drivers for general lighting and backlighting. Total sequential net sales to international customers increased 13% primarily from our high voltage pulser ICs and chipsets for medical ultrasound products due to seasonality, a custom audio product, and printer drivers.

Total year-over-year net sales to domestic customers for the three months ended June 29, 2013 decreased 8%, primarily due to reduced sales for a military application and high voltage amplifier ICs for optical MEMS applications.Sequential domestic sales increased 5%, primarily from higher custom processing services.

Our assets are primarily located in the United States and to a lesser extent Hong Kong.

Cost of Sales and Gross Profit

Gross profit represents net sales less cost of sales.  Cost of sales includes the cost of raw silicon wafers; the costs associated with assembly, packaging, test, quality assurance and product yields; the cost of personnel, facilities and depreciation on equipment for manufacturing and its support; and charges for excess or obsolete inventory.

	Three Months Ended
(Dollars in thousands)		June 29,		March 30,		June 30,
Net Sales		2013		2013		2012
Gross Margin Percentage		54%		52%		47%
Included in Gross Margin Percentage Above:
Gross Margin Benefit from Sales of Previously Written Down Inventory	$	489	$	526	$	345
Percentage of Net Sales		3%		4%		2%

25

Gross profit for the three months ended June 29, 2013 was $8,732,000 compared to $7,494,000 for the same period of the prior fiscal year and $7,679,000 for the prior quarter.  As a percentage of net sales, gross margin was 54% for the three months ended June 29, 2013 compared to 47%  for the same period of the prior fiscal year and 52% for the prior quarter.  The year-over-year quarterly increases in gross profit and gross margin were primarily attributable to lower unit cost of goods sold due to higher wafer fab capacity utilization, which was approximately 50% compared to approximately 30% during the same period of the prior year when sales were lower and we were reducing inventory, and to a lesser extent, increased sales of previously written-down inventory.

The sequential increases in gross profit and gross margin were primarily due to increased sales and a  decrease in provision for excess and obsolete inventory resulting from increased expected future sales and reduced inventory balance.

We wrote down excess and obsolete inventory totaling $194,000for the three months ended June 29, 2013 compared to $156,000 for the same period of the prior fiscal year and $317,000 for the prior quarter.  We sold previously written-down inventory of $489,000 for the three months ended June 29, 2013 compared to $345,000 for the same period of the prior fiscal year and $526,000 for the prior quarter, respectively.

Research and Development (“R&D”) Expenses

R&D expenses include payroll and benefits, development costs, and depreciation. We also expense experimental prototype wafers and mask sets related to new product development as R&D expenses. 

	Three Months Ended
(Dollars in thousands)	June 29,		March 30,		June 30,		Sequential	Year-Over-Year
	2013		2013		2012		Change	Change
R&D Expenses	$	3,480	$	3,494	$	3,486	0%	0%
Percentage of Net Sales		21%		24%		22%

Quarterly R&D expense was nearly flat year-over-year, primarily due to decreased usage of experimental wafers for new product development of $51,000 and decreased depreciation expense of $30,000, being offset by increased expense of $111,000 related to the greater increase in asset fair value of our NQDCP compared to that of last year.  An increase or decrease in the fair value of our NQDCP assets corresponds to an increase or decrease in the NQDCP liability. To recognize the change in the NQDCP assets, we record the corresponding difference in fair value to other income (expense) net. Correspondingly, to recognize the change in the NQDCP liability, we record the difference to other benefits expense.These NQDCP effects impact R&D expense to the extent the NQDCP investments are beneficially owned by R&D employees.

Sequentially, R&D expense was also flat due to increased experimental wafer usage for new product development of $115,000 and higher compensation expense of $64,000, offset by decreased expense of $190,000 related to our NQDCP.

Some aspects of our R&D efforts require significant short-term expenditures.  As such, timing of such expenditures may cause fluctuations in our R&D expenses, which, as a percentage of net sales, may fluctuate from quarter to quarter.

26

Selling, General and Administrative (“SG&A”) Expenses

SG&A expenses consist primarily of payroll and benefits, commissions to sales representatives, occupancy expenses including expenses associated with our regional sales offices, cost of advertising and publications, and outside professional services such as legal, audit and tax. 

	Three Months Ended
(Dollars in thousands)	June 29,		March 30,		June 30,		Sequential	Year-Over-Year
	2013		2013		2012		Change	Change
SG&A Expenses	$	3,149	$	3,191	$	3,384	-1%	-7%
Percentage of Net Sales		19%		22%		21%

The year-over-year quarterly decrease of $235,000 was primarily due to a greaterdecrease in asset fair market value of our NQDCP of $53,000,  lower employee stock compensation expense of $82,000, and lower consultancy charges of $88,000. The sequential quarterly decrease of $42,000 resulted primarily from a lesser increase in asset fair market value of our NQDCP of $268,000, partially offset by higher salesmen incentives expense of $246,000.

Interest Income and Other Income (Expense), Net

	Three Months Ended
(Dollars in thousands)	June 29,		March 30,		June 30,		Sequential	Year-Over-Year
	2013		2013		2012		Change	Change
Interest Income	$	409	$	293	$	301	40%	36%
Other Income (Expense), Net		60		507		(99)	-88%	161%
Total Interest  and Other Income (Expense), Net	$	469	$	800	$	202	-41%	132%
Percentage of Net Sales		3%		5%		1%

Interest income consists primarily of interest income from our cash, cash equivalents and short-term and long-term investments. Year-over-year and sequentialinterest income for the three months ended June 29, 2013 increased by $108,000 and $116,000, respectively,primarilydue tohigher net realized gains on the investments sold.

Other income (expense), net, consists of changes in asset fair market value held by our NQDCP, sales of fixed assets, foreign exchange gains and losses and other miscellaneous income and expense items. Other income (expense), net for the first quarter was $60,000 compared to an expense of $99,000 for the same period of last year or an increase of $159,000, primarily due to a  lesser decrease in asset fair market value of our NQDCP of $19,000 compared to $97,000 in the prior fiscal year and agreater gain on foreign exchange of $74,000 on our foreign short term investments. Sequentially, other income decreased by $447,000 primarily due to a  decrease in asset fair value of NQDCP of $19,000 in current quarter compared to an increase of $521,000 in the prior quarter.

27

Provision for Income Taxes

The income tax benefit for the three months ended June 29, 2013 was $314,000 on income before tax of $2,752,000 at the effective tax benefit rate of 12% compared to a provision for income taxes of $265,000 on profit before tax of $1,794,000 at the effective tax rate of 15% in the prior quarter and a tax provision of $229,000 on income before tax of $826,000 at the effective tax rate of 28% in the first quarter of the prior fiscal year.

The income tax benefit reported for the three months ended June 29, 2013 resulted primarily from income tax reserve releases of $949,000 due to expirations of statute of limitations on uncertain tax positions. There were no such statute of limitations expirations in the same period last fiscal year.

The income tax provision or benefit for interim periods may not reflect the Company’s computed estimated annual effective tax rate and differs from the taxes computed at the federal and state statutory rates primarily due to the effects of foreign rate differentials, non-deductible stock-based compensation expense, tax-exempt interest income, R&D tax credits, tax contingencies, and the domestic production activities deduction.

We maintain liabilities for uncertain tax positions within our income taxes payable account. The determination of the liability amount involves considerable judgment and estimation, and is continuously monitored by management based on the best information availableincluding changes in tax regulations, the outcome of relevant court cases and other information.

Financial Condition

Overview

Our principal sources of liquidity are cash, cash equivalents, short-term investments, and cash flow generated from operating activities.  Our cash and cash equivalents are comprised of bank deposits and money market investments with financial institutions and can be withdrawn at any point of time without prior notice or penalty. Our short term investments can be withdrawn on short notice and with minimal realized gain or loss. Our cash and cash equivalents balances as of June 29, 2013 and March 30, 2013 were $29,184,000 and $16,414,000 respectively. Our short term investment balances for the same periods were $126,456,000 and $123,847,000, respectively. The increase in cash and cash equivalents along with short-term investments was primarily due to redemptions at par value of our long-term investments of ARS. Correspondingly, our long-term investments were $1,900,000 and $13,800,000.

Working capital is defined as current assets less current liabilities. As of June 29, 2013, working capital balance was $168,252,000compared to $152,998,000 as of March 30, 2013, an increase of $15,254,000.  The increase resulted primarily from redemptions of ARS at par value and cash flows from operating activities.

28

Liquidity and Capital Resources

In summary, our cash flows are as follows (in thousands):

	Three Months Ended
		June 29, 2013		June 30, 2012
Net cash provided by operating activities	$	3,843	$	4,508
Net cash provided by (used in) investing activities		8,966		(11,152)
Net cash (used in) provided by financing activities		(39)		199
Net increase (decrease) in cash and cash equivalents	$	12,770	$	(6,445)

Operating Activities

Net cash provided by operating activities is net income adjusted for certain non-cash items and changes in operating assets and liabilities. For the three months ended June 29, 2013, net cash provided by operating activities was $3,843,000 compared to $4,508,000 for the same period of the prior fiscal year. The decrease of $665,000 resulted from decreased changes in operating assets and liabilities of $2,711,000 which were partially offset by the increase of net income after adjusting non-cash activities by $2,046,000. The non-cash adjustments in the first three months of fiscal 2014 were $243,000 lower than those of the same period of last fiscal year primarily due to a decrease in depreciation expense, a  reduction in bad debt provision and sales returns, a  decrease in stock based compensation expense, and a  decrease resulting from an unrealized gain from short-term investments categorized as trading relating to our NQDCP, partially offset by an increase in deferred taxes. The primary reasons for the decrease in cash due to changes in operating assets and liabilities were an increase in trade receivables as sales grew in the first quarter of fiscal 2014 whereas they declined slightly in the same period of last fiscal year,  a small increase in inventories compared to a significant reduction last year as we had shipped higher unit cost products,  and a  decreased income tax payable, partially offset by an increase of trade payables and a  decrease in prepaid expenses and other assets.

We have generated positive cash flow from operations every fiscal year for the past 20 years.

Investing Activities

Investing cash flows consist typically of capital expenditures and purchases of short-term and long-term investments, partially offset by sales, maturities and redemptions of short-term and long-term investments. Net cash provided by investing activities for the three months ended June 29, 2013 was $8,966,000 compared to cash used of $11,152,000 for the same period last fiscal year. This difference of $20,118,000 was primarily due to increased sales and maturities of investments of $24,480,000, partially offset by increased purchases of $4,353,000. For the remainder of fiscal 2014, we believe that we have substantial production capacity in place to handle our forecasted business except for certain replacements, upgrades and additional test equipment capacity needs which we plan to acquire to meet higher unit volume. We also believe that existing cash and cash equivalents and short-term investments together with cash flow from operations will be sufficient to meet our liquidity and capital requirements through the next twelve months.

Our investment portfolio is primarily comprised of corporate bonds, municipal bonds, commercial paper, certificates of deposits, and remaining ARS.  During thefirst quarter of fiscal 2014, $12,950,000 of ARS were redeemed at par providing more liquidity to the Company. One ARS was fully redeemed, leaving our ARS holdings as one partially redeemed ARS, originally $5,100,000 par value, which has gradually been redeemed down to $2,100,000 par value in periodic increments.

29

Financing Activities

Financing cash flows consist primarily of proceeds from the exercise of stock options under the 2001 and 2009 Plans, sale of stock through the ESPP, dividend payments, and stock repurchased under our previously announced stock repurchase plan. Net cash used in financing activities for the three months ended June 29, 2013 was $39,000, which included repurchases of our shares in the open market of $350,000, which were partially offset by proceeds from the exercise of stock options granted under the 2001 and 2009 Plans and sale of stock under the ESPP of $311,000. For the same period of the prior fiscal year, net cash provided by financing activities was $199,000, which included stock repurchases of $113,000, which were offset by the proceeds from the exercise of stock options granted under the 2001 and 2009 Plans and stock sales under the ESPP of $312,000.

Off-Balance Sheet Arrangements

We do not have nor have we ever had any off-balance sheet arrangements that have, or are likely to have, a current or future material effect on our financial condition,  sales, expenses, results of operations, liquidity, capital expenditures, or capital resources. See Note 9, “Commitments and Contingencies” regarding our indemnification agreements.

Contractual Obligations

We purchase products from a variety of suppliers and use several contract assemblers to provide manufacturing services for our products. During the normal course of business, in order to manage manufacturing lead times and help assure adequate material supplies at low cost, we may enter into agreements with contract assemblers and suppliers which commit us to a minimum purchase over a specified time period at a negotiated low price.  In certain instances, these agreements allow us the option to cancel, reschedule, and adjust our requirements based on our business needs prior to firm orders being released. Consequently, only a portion of our reported purchase commitments arising from these agreements are firm, non-cancelable, and unconditional commitments.

The following table summarizes our significant contractual cash obligations as of June 29, 2013, which consist of operating facility lease obligations and purchase obligations as described above, and the effects such obligations are expected to have on our liquidity and cash flow in future periods (in thousands):

		Due in Fiscal Years
Contractual Obligations		Total		2014 (remaining 9 months)		2015		2016		2017		2018 and beyond
Operating lease obligations	(1)	$	2,386	$	679	$	865	$	787	$	55	$	-
Purchase obligations			5,200		4,474		626		51		43		6
Total contractual cash obligations		$	7,586	$	5,153	$	1,491	$	838	$	98	$	6

 ______________________________

⁽¹⁾ We lease facilities under non-cancelable lease agreements expiring at various times through April 2016.Rental expense net of sublease income for the three months ended June 29, 2013 amounted to $257,000 compared to rental expense of $281,000 for the same period of last fiscal year.

As of June 29, 2013, our liability for uncertain tax positions, net of offsetting tax benefits associated with the correlative effects of potential transfer pricing adjustments, state income taxes, interest deductions, and other receivables, was $1,768,000.  As of June 29, 2013, we have accrued $295,000 of interest and $159,000 of penalties associated with uncertain tax positions. We did not include these obligations in the table above as we cannot determine the exact amount or timing of such cash payments that would be made associated with these

30

uncertain tax positions.

Recent Accounting Pronouncements

In February 2013, Financial Accounting Standard Board (“FASB”) issued an amendment regarding net income or other comprehensive income in financial statements.  This amendment does not change the current requirements for reporting net income or other comprehensive income in financial statements.  However, it requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about those amounts.  This amendment is effective prospectively for reporting periods beginning after December 15, 2012 (the fiscal quarter ending June 29, 2013 for us).  We adopted this guidance in our interim period ended June 29, 2013.The adoption of this guidance did not impact our financial statements, as the guidance is related to disclosure only.

Available Information

We file electronically with the SEC our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments, if any, to those reports pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934.  The SEC maintains an Internet site at http://www.sec.gov that contains these reports, proxy and information statements and other information regarding Supertex, Inc. We make available free of charge and through our Internet website at www.supertex.com copies of these reports as soon as reasonably practicable after filing or furnishing the information to the SEC.  Copies of such documents may be requested by contacting our Investor Relations department at (408) 222-8888 ext. 4295.

Item 3.  Quantitative and Qualitative Disclosures about Market Risk

Interest Rate Risk

We are exposed to financial market risks due primarily to changes in interest rates.  We do not use derivatives to alter the interest characteristics of the investment securities.  We have no holdings of derivative or commodity instruments.  Our investment portfolio is comprised of corporate bonds, municipal bonds, commercial paper and certificates of deposits as well as the remaining ARS of $2,100,000 at par we hold. During the three months ended June 29, 2013, investments and cash and cash equivalents generated interest income of $409,000, compared to $301,000 for the same period of the prior fiscal year.  Based on the par value of our investments (excluding the fair market value of our NQDCP) and cash and cash equivalent balances as of June 29, 2013, a one-percentage point change in interest rates would cause a change in our quarterly interest income by approximately $321,000.

As of June 29, 2013, we had no long-term debt outstanding.

As described in detail in Note 3 to our Financial Statements, we currently hold one remaining ARS with a par value of $2,100,000 which we treat as a long-term investment and against which we have recorded a temporary impairment of $200,000 and therefore carry at $1,900,000 on our balance sheet. If the issuer of the ARS is unable to successfully close future auctions or does not redeem the ARS, or the United States government fails to support its guaranty of the obligations, we may be required to adjust the carrying value of the ARS and record other-than-temporary impairment charges in future periods, which could materially affect our results of

31

operations but which we would not expect to materially impact our financial condition. However, we expect that we will receive the principal associated with this ARS through one of the means described above.

Foreign Currency Exchange Risks

We do not hedge any potential risk from any foreign currency exposure. With our operations in Hong Kong, we may be exposed to an adverse change in the exchange rate of the Hong Kong dollar which is traditionally pegged to the U.S. dollar.  We believe that our exposure is relatively small, thus we do not employ hedging techniques designed to mitigate fluctuations in this exchange rate.  However, we could experience unanticipated currency gains or losses if the Hong Kong dollar ceases to be pegged to the U.S. dollar.  As the level of activity at our Hong Kong operation changes over time, actual currency gains or losses could have an adverse effect to our consolidated financial statements.

Item 4.  Controls and Procedures

(a) Disclosure Controls and Procedures.

Disclosure Controls and Procedures: Our disclosure controls and procedures are designed to ensure that information required to be disclosed in our reports filed under the Securities Exchange Act of 1934 is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms, including, without limitation, that such information is accumulated and communicated to our management, including our principal executive and financial officers, as appropriate to allow timely decisions regarding required disclosures.

Limitations on the Effectiveness of Disclosure Controls: In designing and evaluating our disclosure controls and procedures, we recognized that disclosure controls and procedures, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the disclosure controls and procedures are met.  Additionally, in designing disclosure controls and procedures, we necessarily were required to apply our judgment in evaluating the cost-benefit relationship of possible disclosure controls and procedures.  The design of any disclosure controls and procedures also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. 

Evaluation of Disclosure Controls and Procedures:  Our chief executive officer and chief financial officer have evaluated the effectiveness of the design and operation of our disclosure controls and procedures as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) as of June 29, 2013, and have determined that they are effective at the reasonable assurance level.

(b) Internal Control over Financial Reporting.

Our internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) is designed to provide reasonable assurance regarding the reliability of our financial reporting and preparation of financial statements for external purposes in accordance with GAAP.   There were no changes in our internal control over financial reporting that occurred during the three months ended June 29, 2013 that have materially affected, or are reasonably likely to materially affect such control.

32

PART II - OTHER INFORMATION

Item 1.  Legal Proceedings

From time to time, we may be subject to possible claims or assessments from third parties arising in the normal course of business.  We have reviewed such possible claims and assessments with outside counsel and believe that it is unlikely that they will result in a material adverse effect on our financial position, results of operations or cash flows.

Item 1A.  Risk Factors

There have been no material changes to the risk factors disclosed in Item 1A of Part I of our Form 10-K for the fiscal year ended March 30, 2013, filed on June 13, 2013, which risk factors are hereby incorporated by reference, except as described in the last paragraph under the heading “Interest Rate Risk” in Part I, Item 3 of this Form 10-Q.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following is a summary of share purchase activities by us during the three months ended June 29, 2013. There was no purchase activity during that period by an “affiliated purchaser” of ours as defined in Rule 10b-18(a)(3).

Period	Total Number of Shares Purchased (1)		Average Price Paid per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2)	Maximum Number of Shares that May yet be Purchased Under the Plans or Programs
3/31/13 – 4/27/13	-			-	828,162
4/28/13 – 5/25/13	-			-	828,162
5/26/13 – 6/29/13	15,928	$	22.00	15,928	812,234
Total	15,928	$	22.00	15,928

_________________________________

(1) Our current share repurchase program, under which we repurchased these 15,928 shares during the three months ended June 29, 2013, has been in place since 1999. Although we publicly announced the most recent 1,944,145 share program increase, we are not certain but do not believe we publicly announced this program at its inception, although our financial statements have reflected purchases from time to time under this program. These 15,928 shares were purchased in open market transactions.

(2) We adopted a share repurchase program in 1992 authorizing the repurchase of 1,000,000 shares. The board of directors terminated this program in 1999 after 938,000 shares had been repurchased and adopted a share repurchase program authorizing the repurchase of 900,000 shares plus the 62,000 shares authorized for repurchase under the 1992 program whose repurchase had not been affected. As described in footnote (1), we are not certain but do not believe that we publicly announced the inception of the 1999 repurchase program. On January 30, 2008, and January 21, 2011, the board of directors amended the 1999 repurchase program to add 1,000,000 and 1,944,145 shares, respectively. The 1999 repurchase program has no expiration date, other than, unless extended, when all of the shares in the program have been repurchased. As of June 29, 2013, there were 812,234, shares remaining in the 1999 repurchase program.Neither this program nor any other repurchase program or plan has expired during the first fiscal quarter ended June 29, 2013 nor have we decided to terminate any repurchase plan or program prior to expiration. There are no existing repurchase plans or programs under which we do not intend to make further purchases.

33

We have had share repurchase programs in place since 1992 under which our Board of Directors authorized us to repurchase an aggregate of 4,844,145 shares. Since the inception of these repurchase programs in 1992 through June 29, 2013, we have repurchased a total of 4,031,911 shares of the common stock for an aggregate cost of approximately $68,980,000. Upon their repurchase, shares are restored to the status of authorized but unissued shares. As of June 29, 2013, there were 812,234 shares authorized for future repurchase under our current program. 

Item 3.  Defaults Upon Senior Securities

None

Item 4.  Mine Safety Disclosures

None

Item 5.  Other Information

None

Item 6.  Exhibits

Exhibit		Description
Exhibit 31.1 & 31.2	-	Certification of Chief Executive Officer and of Chief Financial Officer pursuant to Securities and Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
Exhibit 32.1 & 32.2	-	Certification of Chief Executive Officer and 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.

34

SIGNATURE

Pursuant to the requirements 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.

	SUPERTEX, INC.
	(Registrant)
Dated: August 8, 2013
	By: /s/PHILLIP A. KAGEL
	Phillip A. Kagel
	Vice President, Finance and Chief Financial Officer
	(Principal Financial and Accounting Officer)

35

SUPERTEX, INC.

EXHIBIT INDEX

Exhibit		Description
Exhibit 31.1 & 31.2	-	Certification of Chief Executive Officer and of Chief Financial Officer pursuant to Securities and Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
Exhibit 32.1 & 32.2	-	Certification of Chief Executive Officer and 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.

36

EX-31.1

Exhibit 31.1

Certifications Under Rule 13a-14(a)/l5d-14(a)

I, Henry C. Pao, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Supertex, Inc., a California corporation;

2.Based on my knowledge, this quarterly 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 quarterly report;

3.Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly 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 I 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 me by others within those entities, particularly during the period in which this quarterly 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 GAAP;

(c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusion 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 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 registrant’s board of directors (or persons performing the equivalent function):

(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 data and have identified for the registrant’s auditors any material weaknesses in internal controls; 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.
Dated:  August 8, 2013	/s/HENRY C. PAO
	Henry C. Pao, Ph.D.
	President & Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certifications Under Rule 13a-14(a)/l5d-14(a)

I, Phillip A. Kagel, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Supertex, Inc., a California corporation;

2.Based on my knowledge, this quarterly 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 quarterly report;

3.Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly 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 I 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 me by others within those entities, particularly during the period in which this quarterly 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 GAAP;

(c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusion 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 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 registrant’s board of directors (or persons performing the equivalent function):

(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 data and have identified for the registrant’s auditors any material weaknesses in internal controls; 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.

Dated:  August 8, 2013	/s/PHILLIP A. KAGEL
	Phillip A. Kagel
	Vice President, Finance and Chief Financial Officer
	(Principal Financial and Accounting Officer)

EX-32.1

Exhibit 32.1

Statement of Chief Executive Officer under 18 U.S.C. § 1350

I, Henry C. Pao, the chief executive officer of Supertex, Inc., a California corporation (the “Company”), certify pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code, that to my knowledge:

(i)the quarterly report of the Company on Form 10-Q for the period ended June 29, 2013 , as filed with the Securities and Exchange Commission (the “Report”), fully complies with the requirements of Section 13(a) or 15(d), whichever is applicable, of the Securities Exchange Act of 1934, and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated.

Dated:  August 8, 2013	/s/HENRY C. PAO
	Henry C. Pao, Ph.D.
	President & Chief Executive Officer
	(Principal Executive Officer)

The material contained in this Exhibit 32.1 is not deemed “filed” with the SEC and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933 or the Securities Exchange Act of 1934, whether made before or after the date hereof and irrespective of any general incorporation language contained in such filing.

EX-32.2

Exhibit 32.2

Statement of Chief Financial Officer under 18 U.S.C. § 1350

I, Phillip A. Kagel, the chief financial officer of Supertex, Inc., a California corporation (the “Company”), certify pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code, that to my knowledge:

(i)the quarterly report of the Company on Form 10-Q for the period ended June 29, 2013, as filed with the Securities and Exchange Commission (the “Report”), fully complies with the requirements of Section 13(a) or 15(d), whichever is applicable, of the Securities Exchange Act of 1934, and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated.

Dated:  August 8, 2013	/s/PHILLIP A. KAGEL
	Phillip A. Kagel
	Vice President, Finance and Chief Financial Officer
	(Principal Financial and Accounting Officer)

The material contained in this Exhibit 32.2 is not deemed “filed” with the SEC and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933 or the Securities Exchange Act of 1934, whether made before or after the date hereof and irrespective of any general incorporation language contained in such filing.

XML

Segment Information

3 Months Ended

Jun. 29, 2013

Segment Information [Abstract]

Segment Information

Note 10 – Segment Information

The Company operates in one reportable segment comprising the design, development, manufacturing and marketing of high voltage semiconductor devices including analog and mixed signal integrated circuits.  The Company’s chief operating decision maker, who is currently the Company’s chief executive officer, reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance. 

The Company’s principal markets are in Asia, the United States, and Europe.  Below is a summary of sales by major geographic area for the three months ended June 29, 2013 and June 30, 2012 (in thousands):

	Three Months Ended
	June 29,		June 30,
Net Sales	2013		2012
China	$	5,003	$	3,838
United States		4,955		5,379
Asia (excluding China & Singapore)		2,299		2,927
Singapore		2,157		2,012
Europe		1,758		1,743
Other		26		160
Net Sales	$	16,198	$	16,059

Net property, plant and equipment by country as of June 29, 2013 and March 30, 2013 are as follows (in thousands):

	June 29, 2013		March 30, 2013
United States	$	3,376	$	3,483
Hong Kong		788		851
Property, plant and equipment, net	$	4,164	$	4,334

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
CONDENSEND CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Tax effect of Unrealized gain (loss)	$ (169)	$ (146)
Tax effect of reclassification adjustment for sale of security	$ 53	$ 4

XML

Cash And Cash Equivalents And Investments

3 Months Ended

Jun. 29, 2013

Cash And Cash Equivalents And Investments [Abstract]

Cash And Cash Equivalents And Investments

Note 3 – Cash and Cash Equivalents and Investments

The Company’s cash equivalents consist primarily of investments in money market funds as follows (in thousands):

	June 29, 2013		March 30, 2013
Cash	$	3,455	$	2,938
Cash equivalents:
Money market funds		25,729		13,476
Total cash and cash equivalents	$	29,184	$	16,414

The Company’s portfolio of short-term and long-term investments is as follows (in thousands):

	June 29, 2013
		Amortized		Unrealized		Unrealized		Carrying
		Cost		Gain		Loss		Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	9,685	$	-	$	-	$	9,685
Available-for-sale securities:
Municipal bonds		82,590		62		(254)		82,398
Corporate bonds		26,547		43		(196)		26,394
Certificates of deposits		6,478		3		-		6,481
Commercial papers		1,498		-		-		1,498
Total short-term investments	$	126,798	$	108	$	(450)	$	126,456
Long-term investments:
ARS available-for sale securities	$	2,100	$	-	$	(200)	$	1,900
	March 30, 2013
		Amortized		Unrealized		Unrealized		Carrying
		Cost		Gain		Loss		Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	9,673	$	-	$	-	$	9,673
Available-for-sale securities:
Municipal bonds		58,524		156		(22)		58,658
Corporate bonds		25,667		161		(3)		25,825
Government agency bonds		16,106		82		(1)		16,187
Certificates of deposits		7,758		5		(4)		7,759
Commercial Papers		5,743		2		-		5,745
Total short-term investments	$	123,471	$	406	$	(30)	$	123,847
Long-term investments:
ARS available-for sale securities	$	15,050	$	-	$	(1,250)	$	13,800

The Company’s short-term and long-term investments by contractual maturity are as follows (in thousands):

	June 29, 2013		March 30, 2013
Short-term investment:
Trading securities:
Due in one year or less	$	9,685	$	9,673
Available-for-sale securities:
Due in 12 months or less		32,590		45,190
Due in 12 to 24 months		38,518		23,019
Due in 24 to 36 months		29,556		32,345
Due in 36 to 49 months		16,107		13,620
Total short-term investments	$	126,456	$	123,847
Long-term investment:
Available-for-sale securities at fair value:
Due after ten years	$	1,900	$	13,800
Total long-term investments	$	1,900	$	13,800

Short-term investments classified as trading securities consisted entirely of investments in mutual funds held by the Company’s NQDCP. Unrealized gains (losses) on trading securities are recorded in the Condensed Consolidated Statements of Income. Unrealized losses on trading securities were $19,000 for the three months ended June 29, 2013 compared to $97,000 for the same period of the prior fiscal year.

The Company’s available-for-sale portfolio as of June 29, 2013 was comprised of municipal bonds, corporate bonds, commercial paper, certificates of deposits and ARS. Unrealized gains (losses) on available-for-sale securities are recorded in other comprehensive income (loss) as increases (declines) in fair values and are considered to be temporary.

Realized gains (losses) on the sale of available-for-sale securities are determined by the specific identification method and are reflected in the interest income line item on the condensed consolidated statements of income. During the three months ended June 29, 2013, the Company disposed of short-term available-for-sale securities totaling $50,012,000 compared to $25,765,000for the same period of the prior fiscal year.  The net realized gain of these transactions was $152,000  for the three months ended June 29, 2013. For the three months ended June 30, 2012, such gain was immaterial.

The Company’s ARS has a contractual maturity of24 years. This security is in the form of auction rate bonds whose interest rate had historically been reset every thirty-five days through an auction process. At the end of each reset period, investors could sell or continue to hold the security at par. This ARS held by the Company is backed by pools of student loans and is primarily guaranteed by the U.S. Department of Education, although the credit rating of this ARS with a par value of $2,100,000 was reduced from AAA to AAA with a negative outlook by Fitch in May 2013. 

The ARS with a par value of $2,100,000, whose carrying value was $1,900,000,  was classified as a non-current asset and was presented as a long-term investment on the Company’s balance sheet as of June 29, 2013.

The Company has concluded that the decline in fair value of the ARS investment as of June 29, 2013 is considered to be temporary in part due to the following:

· this ARS is of investment grade credit quality and a significant portion of it is collateralized and guaranteed by the U.S. Department of Education;

· as of June 29, 2013, there had been no defaults on the ARS held by the Company;

· the credit rating of this ARS was downgraded from AAA to AAA with a negative outlook by Fitch in May 2013, however, it is still considered to be investment grade. There has been no change of credit rating subsequent to June 29, 2013.

· the Company has the intent and ability to hold this investment until the anticipated recovery in market value occurs or it is redeemed at par value; and

· to the extent the Company’s other investments in ARS have been redeemed, they were all redeemed at par value. The Company received ARS redemptions of $13,000,000,$4,700,000 and  $36,450,000, all at par valuein fiscal years 2013, 2012 and 2011, respectively. Additionally, during the three months ended June 29, 2013, one of its ARS was fully redeemed and the other, which is currently held, was partially redeemed at par value with a combined total of $12,950,000.  

If uncertainties in the credit and capital markets continue or these markets deteriorate further, the Company may incur additional temporary impairment to its ARS holding. The Company will continue to monitor its ARS holding and may be required to record an impairment charge through the income statement if the decline in fair value is determined to be other-than-temporary or the credit quality of its ARS holding declines further.

During the quarter ended December 29, 2012, the Company loaned $300,000under a convertible promissory note to a private startup company developing products based on a new technology. This private startup company uses the Company's ICs for its prototype systems. Sales to date have not been material for the Company.  This loan was recorded as a long term asset as of June 29, 2013. This unsecured loan accrues simple interest at a 5% annual rate with principal and accrued interest convertible at the option of the Company to preferred stock at a discount and the loan matures on December 31, 2013. The conversion feature is automatic if the private company raises  $4,000,000  of additional capital, including the note, prior to December 31, 2013. The Company also has the option to invest an additional $1,700,000 in that startup company's stock in the event of certain equity financings. The Company did not own any stock in the private company as of June 29, 2013.The Company expects the note to be either automatically or voluntarily converted to preferred stock on or prior to maturity and therefore it is categorized as a long-term asset.

XML

Commitments And Contingencies (Tables)

3 Months Ended

Jun. 29, 2013

Commitments And Contingencies [Abstract]

Schedule Of Product Return Liability

Description		Balance at Beginning of Period		Charge	Deductions and Other(1)		Balance at End of Period
Three months ended June 29, 2013	$	230	$	60	$	(28)	$	262
Three months ended June 30, 2012	$	213	$	134	$	(8)	$	339

___________________

⁽¹⁾ Represents amounts charged to the allowance for sales returns. 

Schedule Of Future Minimum Rental Payments Due By Fiscal Year For Operating Leases

Payment Due by Fiscal Year	Operating Lease
2014 (remaining 9 months)		679
2015		865
2016		787
2017		55
	$	2,386

XML

Significant Customers

3 Months Ended

Jun. 29, 2013

Significant Customers [Abstract]

Significant Customers

Note 11 – Significant Customers 

The Company sells its products to OEMs through its direct sales and marketing personnel, and through its independent sales representatives and distributors. Revenue from sales to distributors and the related cost of sales are recognized only upon resale to end-user customers, which is on a sell-through basis.

A major medical equipment company and a distributor accounted for approximately 12% and 10%, respectively, of net sales for the three months ended June 29, 2013.  Nearly all of the sales to the medical equipment company were through distributors and contract manufacturers. None of the sales attributed to the significant Company distributor were included in the re-sales attributed to the medical equipment company. The medical equipment company also accounted for approximately 11% of net sales for thethree months ended June 30, 2012.

There were no other customers that the Company believes accounted for more than 10% of the Company’s net sales for the three months ended June 29, 2013 and June 30, 2012.

XML

Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013
Income Taxes [Abstract]
(Benefit from) provision for income taxes	$ (314)	$ 229
Income (loss) before provision for income	2,572	826
Effective income tax rate	12.00%	28.00%
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	949
Unrecognized tax benefits	2,420		3,160
Unrecognized tax benefits that would affect income tax rate	1,768
Accrued income tax interest	295
Accrued income tax penalties	159
Income tax interest	(143)
Income tax penalties	2
Unrecognized tax benefits reasonably possible to expire in the next twelve months	$ 145

XML

Fair Value (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 29, 2013	Mar. 30, 2013	Mar. 31, 2012	Apr. 02, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
ARS, estimated fair value	$ 1,900
ARS redemption at par value	12,950	13,000	4,700	36,450
ARS redemptions at carrying value	11,900
Unrealized Loss	200
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liquidity discount	150
Market recovery period	5 years
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liquidity discount	125
Market recovery period	3 years
Fitch, AAA Rating [Member] | Standard & Poor's, AAA Rating [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
ARS non-current	2,100
Fitch, AAA Rating [Member] | Moody's, Aaa Rating [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
ARS non-current	$ 2,100

XML

Segment Information (Tables)

3 Months Ended

Jun. 29, 2013

Segment Information [Abstract]

Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area

	Three Months Ended
	June 29,		June 30,
Net Sales	2013		2012
China	$	5,003	$	3,838
United States		4,955		5,379
Asia (excluding China & Singapore)		2,299		2,927
Singapore		2,157		2,012
Europe		1,758		1,743
Other		26		160
Net Sales	$	16,198	$	16,059

Reconciliation Of Property Plant And Equipment By Country

	June 29, 2013		March 30, 2013
United States	$	3,376	$	3,483
Hong Kong		788		851
Property, plant and equipment, net	$	4,164	$	4,334

XML

Segment Information (Reconciliation Of Property Plant And Equipment By Country) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Mar. 30, 2013
Property, plant and equipment, net	$ 4,164	$ 4,334
United States [Member]
Property, plant and equipment, net	3,376	3,483
Hong Kong [member]
Property, plant and equipment, net	$ 788	$ 851

XML

Inventories (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013
Inventories [Abstract]
Raw materials	$ 442		$ 470
Work-in-process	7,592		7,310
Finished goods	2,104		2,324
Finished goods at distributors and on consignment	1,280		1,240
Total Inventories	11,418		11,344
Provision for excess and obsolete inventories	194	156
Previously written down inventory sold	$ 489	$ 345

XML

Commitments And Contingencies (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013
Commitments And Contingencies [Abstract]
Product return period	90 days
Product warrany period	90 days
Warranty reserve	$ 53		$ 54
Operating Leases, Rent Expense, Net	$ 257	$ 281

XML

Cash And Cash Equivalents And Investments (Schedule Of Cash And Cash Equivalents) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Mar. 30, 2013	Jun. 30, 2012	Mar. 31, 2012
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	$ 29,184	$ 16,414	$ 13,415	$ 19,860
Cash [Member]
Cash and Cash Equivalents [Line Items]
Cash	3,455	2,938
Money Market Funds [Member]
Cash and Cash Equivalents [Line Items]
Cash equivalents	$ 25,729	$ 13,476

XML

Common Stock Repurchase (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		26 Months Ended	29 Months Ended	258 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013	Jun. 29, 2013	Jun. 29, 2013	Jan. 21, 2011
Common Stock Repurchase [Abstract]
Share repurchase authorized amount			$ 60,000
Number of shares authorized to be repurchased						2,500,000
Number of shares repurchased	16,000	6,000		1,688,000	4,032,000
Cost of shares repurchased	$ 350	$ 113	$ 32,079	$ 32,429	$ 68,980
Remaining authorized repurchase number of shares	812,000			812,000	812,000	556,000

XML

Common Stock Repurchase (Tables)

3 Months Ended

Jun. 29, 2013

Common Stock Repurchase [Abstract]

Schedule Of Stock Repurchase Activity

	Three Months Ended
	June 29,		June 30,
	2013		2012
Number of shares repurchased		16,000		6,000
Cost of shares repurchased	$	350,000	$	113,000
Average price per share	$	22.00	$	17.97

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 29, 2013	Mar. 30, 2013
Shareholders' equity:
Preferred stock, no par value (in dollars per share)
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred Stock, Shares Issued
Preferred Stock, Shares Outstanding
Common stock, no par value (in dollars per share)
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	11,525,000	11,526,000
Common stock, outstanding (in shares)	11,525,000	11,526,000

XML

Organization And Basis Of Presentation

3 Months Ended

Jun. 29, 2013

Organization And Basis Of Presentation [Abstract]

Organization And Basis Of Presentation

Note 1 – Organization and Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Supertex, Inc. (“Supertex,” the “Company,” “we,” and “us”) and its subsidiary have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America.  This financial information reflects all adjustments, which are, in the opinion of the Company’s management, of normal recurring nature and necessary to state fairly the balance sheet as of June 29, 2013 and the related statements of income, comprehensive income and cash flows for the three months ended June 29, 2013 and June 30, 2012. The March 30, 2013 balance sheet was derived from the audited financial statements included in the fiscal 2013 Annual Report on Form 10-K, but does not include all disclosures required by GAAP in the United States of America.  All significant intercompany transactions and balances have been eliminated. 

The condensed consolidated financial statements included herein have been prepared by the Company, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”).  Certain information and footnote disclosures normally included in these financial statements have been condensed or omitted pursuant to such rules and regulations, although the Company believes the disclosures which are made are adequate to make the information presented not misleading.  These financial statements should be read in conjunction with the audited consolidated financial statements of Supertex, Inc. for the fiscal year ended March 30, 2013, which were included in the fiscal 2013 Annual Report on Form 10-K.

The preparation of financial statements in conformity with GAAP in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates, and such differences may be material to the financial statements. The results of operations for the three months ended June 29, 2013 are not necessarily indicative of the results to be expected for any future periods.

The Company reports on a fiscal year basis and it operates and reports based on quarterly periods ending on the Saturday nearest to the end of the applicable calendar quarter, except in a 53-week fiscal year, in which case the additional week falls into the fourth quarter of the fiscal year.  Fiscal 2014 will be a 52-week year.  The three months ended June 29, 2013 and June 30, 2012, both consist of thirteen weeks.

Recent Accounting Pronouncements

In February 2013, Financial Accounting Standards Board (“FASB”) issued an amendment regarding net income or other comprehensive income in financial statements.  This amendment does not change the current requirements for reporting net income or other comprehensive income in financial statements.  However, it requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about those amounts.  This amendment is effective prospectively for reporting periods beginning after December 15, 2012 (the fiscal quarter ending June 29, 2013 for the Company).  The Company adopted this guidance in its interim period ended June 29, 2013. The adoption of this guidance did not impact the Company's financial statements, as the guidance is related to disclosure only.

XML

Inventories

3 Months Ended

Jun. 29, 2013

Inventories [Abstract]

Inventories

Note 4 – Inventories

The Company’s inventories consist of high technology semiconductor devicesthat are specialized in nature, subject to rapid technological obsolescence, and sold in a highly competitive industry.  Inventory balances at the end of each period are stated at the lower of cost (determined on a first-in, first-out basis) or net realizable value.

Inventories consist of (in thousands):

	June 29, 2013		March 30, 2013
Raw materials	$	442	$	470
Work-in-process		7,592		7,310
Finished goods		2,104		2,324
Finished goods at distributors and on consignment		1,280		1,240
Total inventories	$	11,418	$	11,344

The Company wrote down excess and obsolete inventory totaling $194,000for the three months ended June 29, 2013 compared to $156,000for the same period of the prior fiscal year. The Company sold previously written-down inventory of  $489,000 for the three months ended June 29, 2013 compared to$345,000 for the same period last fiscal year.

XML

Fair Value

3 Months Ended

Jun. 29, 2013

Fair Value [Abstract]

Fair Value

Note 2 – Fair Value

The Company measures its cash equivalents, short-term investments and long-term investments at fair value. Fair value is defined as the price that would be received from selling an asset and paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining fair value measurements for assets and liabilities required or permitted to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability, such as inherent risk, transfer restrictions, and risk of nonperformance.

A three-tiered fair value hierarchy has been established as the basis for considering the above assumptions and determining the inputs used in the valuation methodologies in measuring fair values.  The three levels of inputs are defined as follows:

Level 1 – Unadjusted quoted market prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2 – Observable inputs such as quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in inactive markets.

Level 3 – Valuations based on models where significant inputs are not observable. The unobservable inputs reflect the Company’s own assumptions about the factors that market participants would use.

The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs. If a financial instrument uses an input that is significant to the fair value calculation, the instrument will be categorized based upon the lowest level of input that is significant to the fair value calculation.  The Company’s financial assets and liabilities measured at fair value on a recurring basis include cash equivalents and investment securities, both short-term and long-term.

The carrying value of cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value due to their short maturities.

The Company’s money market investments, certificates of deposit purchased directly from the bank, and Non-Qualified Deferred Compensation Plan ("NQDCP") assets and liabilities are valued using Level 1 inputs. Fixed income available-for-sale portfolio, mainly consisting of municipal bonds, corporate bonds, commercial paper and certificates of deposits bought in the secondary market, are valued using Level 2 inputs.

The Company’s long-term investment is an auction rate security (“ARS”) which is collateralized by student loans. The credit rating of the ARS with a par value of $2,100,000 was downgraded from AAA to AAA with a negative outlook by Fitch in May 2013, however, it remains investment grade quality. Therefore, the Company has concluded that the decline of $200,000 in fair value of this ARS investment as of June 29, 2013 is temporary. The credit ratings of this ARS holding have not been downgraded subsequent to June 29, 2013.  Due to the lack of availability of observable market quotes for the Company’s investment of this ARS, the fair value was estimated based on a discounted cash flow model using Level 3 inputs. The assumptions used in the discounted cash flow model include estimates for interest rates, timing and amounts of cash flows, liquidity of the underlying security, expected holding periods, and contractual terms of the security. In light of the current market condition for ARS, the Company developed different scenarios for the significant inputs used in the discounted cash flow model, including but not limited to a liquidity discount of 125 and 150 basis points per year for the current ARS market, and the timing of recovery of the ARS market from three to five years.  The Company concluded that the fair value of its ARS, which was classified as a  level 3 asset, was $1,900,000 as of June 29, 2013 net of a temporary impairment of $200,000 to par value.

The Company also considered the quality, amount of collateral, and US government guarantee for the ARS and looked to other marketplace transactions and information received from third party brokers in order to assess whether the fair value based on the discounted cash flow model is reasonable. The valuation of the Company’s investment portfolio is subject to uncertainties that are difficult to predict. Factors that may affect the Company’s valuation include changes to credit ratings of the security as well as the underlying assets supporting that security, rates of default of the underlying assets, underlying collateral values, discount rates, counterparty risk and ongoing strength, and quality of market credit and liquidity. Significant inputs to the investment valuation are unobservable in the active markets and therefore the Company’s ARS is classified as Level 3 in the hierarchy.

The following tables summarize assets and liabilities measured at fair value on a recurring basis as of June 29, 2013 and March 30, 2013, excluding accrued interest (in thousands):

	June 29, 2013
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	25,729	(1)	$	-	$	-	$	25,729
Municipal bonds		-			82,398		-		82,398
Corporate bonds		-			26,394		-		26,394
Certificates of deposits		5,075			1,406		-		6,481
Commercial paper		-			1,498		-		1,498
Equity mutual funds related to NQDCP		9,685			-		-		9,685
Long-term investments in ARS		-			-		1,900		1,900
Total assets at fair value	$	40,489		$	111,696	$	1,900	$	154,085
Liabilities
Obligation related to NQDCP	$	9,685		$	-	$	-	$	9,685
	March 30, 2013
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	13,476	(1)	$	-	$	-	$	13,476
Municipal bonds		-			58,658		-		58,658
Corporate bonds		-			25,825		-		25,825
Government agency bonds		-			16,187		-		16,187
Certificate of deposits		3,459			4,300		-		7,759
Commercial Papers					5,745				5,745
Equity mutual funds related to NQDCP		9,673			-		-		9,673
Long-term investments in ARS		-			-		13,800		13,800
Total assets at fair value	$	26,608		$	110,715	$	13,800	$	151,123
Liabilities
Obligation related to NQDCP	$	9,673		$	-	$	-	$	9,673

^{_________________________}

(1) Money market funds of $25,729,000 and $13,476,000 were classified as cash equivalents as of June 29, 2013 and March 30, 2013, respectively.

There were no significant transfers between Level 1, Level 2 and Level 3 during the three months ended June 29, 2013 or June 30, 2012. The following table includes the activity for Auction Rate Securities that are classified as Level 3 of the valuation hierarchy (in thousands):

	Three Months Ended
	June 29,		June 30,
	2013		2012
Beginning balance of ARS classified as Level 3	$	13,800	$	25,900
Redemption of investments in ARS at par		(12,950)		(12,750)
Reversals of unrealized losses due to redemptions		970		250
Change in fair value of existing ARS		80		200
Ending balance of ARS classified as Level 3	$	1,900	$	13,600

The Company transfers investments into and out of levels within the fair value hierarchy based on a change in circumstances at the end of the fiscal month.

During the three months ended June 29, 2013, the Company received $12,950,000 in proceeds for the redemptions at par value of the ARS with a carrying value at the time of $11,900,000. See Note 3 for further discussion of the Company’s ARS.

XML

Commitments And Contingencies (Schedule Of Product Return Liability) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013		Jun. 30, 2012
Commitments And Contingencies [Abstract]
Balance at Beginning of Period	$ 230		$ 213
Charge	60		134
Deductions and Other	(28)	[1]	(8)	[1]
Balance at End of Period	$ 262		$ 339

[1] Represents amounts charged to the allowance for sales returns.

XML

Fair Value (Schedule Of Assets And Liabilities Measured On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013		Mar. 30, 2013		Jun. 30, 2012	Mar. 31, 2012
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	$ 40,489		$ 26,608
Liabilities, Fair Value Disclosure	9,685		9,673
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	111,696		110,715
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,900		13,800		13,600	25,900
Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	154,085		151,123
Liabilities, Fair Value Disclosure	9,685		9,673
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	25,729	[1]	13,476	[1]
Money Market Funds [Member] | Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	25,729		13,476
Municipal Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	82,398		58,658
Municipal Bonds [Member] | Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	82,398		58,658
Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	26,394		25,825
Corporate Bonds [Member] | Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	26,394		25,825
Government Agency Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure			16,187
Government Agency Bonds [Member] | Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure			16,187
Certificates Of Deposits [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	5,075		3,459
Certificates Of Deposits [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,406		4,300
Certificates Of Deposits [Member] | Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	6,481		7,759
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,498		5,745
Commercial Paper [Member] | Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,498		5,745
Equity Mutual Funds Related To NQDCP [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	9,685		9,673
Equity Mutual Funds Related To NQDCP [Member] | Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	9,685		9,673
Long-Term Investments In ARS [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,900		13,800
Long-Term Investments In ARS [Member] | Fair Value Inputs Level 1 Level 2 And Level 3, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	$ 1,900		$ 13,800

[1] Money market funds of $25,729,000 and $13,476,000 were classified as cash equivalents as of June 29, 2013 and March 30, 2013, respectively.

XML

Cash And Cash Equivalents And Investments (Schedule Of Investments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Mar. 30, 2013
Schedule of Investments [Line Items]
Unrealized Loss	$ (200)
Total short-term investments, Carrying Value	126,456	123,847
Short-term Investments [Member]
Schedule of Investments [Line Items]
Total short-term investments, Amortized Cost	126,798	123,471
Unrealized Gain	108	406
Unrealized Loss	(450)	(30)
Total short-term investments, Carrying Value	126,456	123,847
Short-term Investments [Member] | Equity Mutual Funds Related To NQDCP [Member]
Schedule of Investments [Line Items]
Short-term investments, trading securities	9,685	9,673
Short-term Investments [Member] | Municipal Bonds [Member]
Schedule of Investments [Line Items]
Available-for sale securities, Amortized Cost	82,590	58,524
Unrealized Gain	62	156
Unrealized Loss	(254)	(22)
Available-for-sale securities, Carrying Value	82,398	58,658
Short-term Investments [Member] | Corporate Bonds [Member]
Schedule of Investments [Line Items]
Available-for sale securities, Amortized Cost	26,547	25,667
Unrealized Gain	43	161
Unrealized Loss	(196)	(3)
Available-for-sale securities, Carrying Value	26,394	25,825
Short-term Investments [Member] | Government Agency Bonds [Member]
Schedule of Investments [Line Items]
Available-for sale securities, Amortized Cost		16,106
Unrealized Gain		82
Unrealized Loss		(1)
Available-for-sale securities, Carrying Value		16,187
Short-term Investments [Member] | Certificates Of Deposits [Member]
Schedule of Investments [Line Items]
Available-for sale securities, Amortized Cost	6,478	7,758
Unrealized Gain	3	5
Unrealized Loss		(4)
Available-for-sale securities, Carrying Value	6,481	7,759
Short-term Investments [Member] | Commercial Paper [Member]
Schedule of Investments [Line Items]
Available-for sale securities, Amortized Cost	1,498	5,743
Unrealized Gain		2
Available-for-sale securities, Carrying Value	1,498	5,745
Long-term Investments [Member]
Schedule of Investments [Line Items]
Available-for sale securities, Amortized Cost	2,100	15,050
Unrealized Loss	(200)	(1,250)
Available-for-sale securities, Carrying Value	$ 1,900	$ 13,800

XML

Share Compensation (Schedule Of Options Outstanding And Exercisable) (Details) (USD $)	3 Months Ended
	Jun. 29, 2013	Mar. 30, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower limit	$ 17.29
Range of Exercise Prices, Upper limit	$ 46.92
Options outstanding, number	1,676,371	1,532,640
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	6 years 7 months 13 days
Options Outstanding, Weighted-Average Exercise Price	$ 24.46	$ 25.29
Options Exercisable, Number Outstanding	902,451
Options Exercisable, Weighted-Average Exercise Price	$ 27.18
$17.29 - $19.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower limit	$ 17.29
Range of Exercise Prices, Upper limit	$ 19.99
Options outstanding, number	303,700
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	8 years 5 months 11 days
Options Outstanding, Weighted-Average Exercise Price	$ 18.88
Options Exercisable, Number Outstanding	38,560
Options Exercisable, Weighted-Average Exercise Price	$ 18.95
$20.00 - $24.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower limit	$ 20.00
Range of Exercise Prices, Upper limit	$ 24.99
Options outstanding, number	826,671
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	7 years 5 months 3 days
Options Outstanding, Weighted-Average Exercise Price	$ 21.66
Options Exercisable, Number Outstanding	367,603
Options Exercisable, Weighted-Average Exercise Price	$ 21.24
$25.00 - $29.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower limit	$ 25.00
Range of Exercise Prices, Upper limit	$ 29.99
Options outstanding, number	289,600
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	5 years 7 months 13 days
Options Outstanding, Weighted-Average Exercise Price	$ 26.94
Options Exercisable, Number Outstanding	239,888
Options Exercisable, Weighted-Average Exercise Price	$ 26.82
$30.00 - $34.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower limit	$ 30.00
Range of Exercise Prices, Upper limit	$ 34.99
Options outstanding, number	84,500
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	4 years 3 months 12 days
Options Outstanding, Weighted-Average Exercise Price	$ 33.93
Options Exercisable, Number Outstanding	84,500
Options Exercisable, Weighted-Average Exercise Price	$ 33.93
$35.00 - $39.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower limit	$ 35.00
Range of Exercise Prices, Upper limit	$ 39.99
Options outstanding, number	87,800
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	3 years 11 months 17 days
Options Outstanding, Weighted-Average Exercise Price	$ 35.83
Options Exercisable, Number Outstanding	87,800
Options Exercisable, Weighted-Average Exercise Price	$ 35.83
$40.00 - $44.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower limit	$ 40.00
Range of Exercise Prices, Upper limit	$ 44.99
Options outstanding, number	68,100
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	8 months 5 days
Options Outstanding, Weighted-Average Exercise Price	$ 41.05
Options Exercisable, Number Outstanding	68,100
Options Exercisable, Weighted-Average Exercise Price	$ 41.05
$45.00 - $46.92 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower limit	$ 45.00
Range of Exercise Prices, Upper limit	$ 46.92
Options outstanding, number	16,000
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	5 months 3 days
Options Outstanding, Weighted-Average Exercise Price	$ 46.92
Options Exercisable, Number Outstanding	16,000
Options Exercisable, Weighted-Average Exercise Price	$ 46.92

XML

Segment Information (Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013 segment	Jun. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 16,198	$ 16,059
Number of Reportable Segments	1
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	5,003	3,838
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	4,955	5,379
Asia (Excluding China And Singapore) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,299	2,927
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,157	2,012
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,758	1,743
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 26	$ 160

XML

CONDENSEND CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
CONDENSEND CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 2,886	$ 597
Other comprehensive income (loss), net of tax:
Net change in unrealized gain (loss) on available-for-sale investments, net of tax	315	271
Reclassification adjustments for net realized gains on available-for-sale securities included in net income, net of tax	(99)	(7)
Other comprehensive income, net of tax	216	264
Comprehensive income	$ 3,102	$ 861

XML

Net Income Per Share

3 Months Ended

Jun. 29, 2013

Net Income Per Share [Abstract]

Net Income Per Share

Note 7 - Net Income per Share  

Basic earnings per share (“EPS”) is computed as net income divided by the weighted average number of common shares outstanding for the period.  Diluted EPS reflects the potential dilution that could occur from common shares that may be issued through stock options and ESPP only, since the Company does not have warrants or any other convertible securities outstanding. 

A reconciliation of the numerator and denominator of basic and diluted earnings per share is provided as follows (in thousands, except per share amounts):

	Three Months Ended
	June 29,		June 30,
	2013		2012
BASIC:
Net income	$	2,886	$	597
Weighted average shares outstanding for the period		11,528		11,999
Net income per share	$	0.25	$	0.05
DILUTED:
Net income	$	2,886	$	597
Weighted average shares outstanding for the period		11,528		11,999
Effect of dilutive securities: stock options and ESPP		57		2
Total		11,585		12,001
Net income per share	$	0.25	$	0.05

Options to purchase 1,235,439 shares of the Company’s common stock at an average price of $26.16 per sharefor the three months ended June 29, 2013 were outstanding but were not included in the computation of diluted earnings per share because their effect would have been anti-dilutive.

For the three months ended June 30, 2012, options to purchase 1,656,126 shares of the Company’s common stock at an average price of $26.57 per sharewere outstanding but were not included in the computation of diluted earnings per share because their effect would have been anti-dilutive.

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Mar. 30, 2013
Current Assets:
Cash and cash equivalents	$ 29,184	$ 16,414
Short-term investments	126,456	123,847
Trade accounts receivable, net	7,688	7,335
Inventories	11,418	11,344
Prepaid expenses and other current assets	2,551	2,538
Prepaid income taxes	3,285	3,203
Deferred income taxes	7,768	7,517
Total current assets	188,350	172,198
Long-term investments	1,900	13,800
Property, plant and equipment, net	4,164	4,334
Other assets	759	787
Deferred income taxes, noncurrent	5,292	5,659
Total assets	200,465	196,778
Current Liabilities:
Trade accounts payable	2,819	2,521
Accrued salaries and employee benefits	13,229	13,230
Other accrued liabilities	1,148	633
Deferred revenue	2,661	2,651
Income taxes payable	241	165
Total current liabilities	20,098	19,200
Income taxes payable, noncurrent	2,626	3,535
Deferred tax liabilities, noncurrent	115	115
Other accrued liabilities, noncurrent	579	575
Total liabilities	23,418	23,425
Commitments and contingencies (Note 8)
Preferred stock, no par value -- 10,000 shares authorized; none issued and outstanding
Common stock, no par value -- 30,000 shares authorized; issued and outstanding 11,525 shares as of June 29, 2013 and 11,526 shares as of March 30, 2013	69,237	68,389
Accumulated other comprehensive loss	(348)	(564)
Retained earnings	108,158	105,528
Total shareholders' equity	177,047	173,353
Total liabilities and shareholders' equity	$ 200,465	$ 196,778

XML

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Net sales	$ 16,198	$ 16,059
Cost of sales	7,466	8,565
Gross profit	8,732	7,494
Research and development	3,480	3,486
Selling, general and administrative	3,149	3,384
Total operating expenses	6,629	6,870
Income from operations	2,103	624
Interest income	409	301
Other income (expense), net	60	(99)
Income before provision for income taxes	2,572	826
(Benefit from) provision for income taxes	(314)	229
Net income	$ 2,886	$ 597
Net income per share
Basic	$ 0.25	$ 0.05
Diluted	$ 0.25	$ 0.05
Shares used in per share computation:
Basic	11,528,000	11,999,000
Diluted	11,585,000	12,001,000

XML

Fair Value (Schedule Of Level 3 Assets) (Details) (Fair Value, Inputs, Level 3 [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Beginning balance	$ 13,800	$ 25,900
Redemption of investments in ARS at par	(12,950)	(12,750)
Reversals of unrealized losses due to redemptions	(970)	(250)
Change in fair value of existing ARS	80	200
Ending Balance	$ 1,900	$ 13,600

XML

Net Income Per Share (Tables)

3 Months Ended

Jun. 29, 2013

Net Income Per Share [Abstract]

Schedule Of Earnings Per Share

	Three Months Ended
	June 29,		June 30,
	2013		2012
BASIC:
Net income	$	2,886	$	597
Weighted average shares outstanding for the period		11,528		11,999
Net income per share	$	0.25	$	0.05
DILUTED:
Net income	$	2,886	$	597
Weighted average shares outstanding for the period		11,528		11,999
Effect of dilutive securities: stock options and ESPP		57		2
Total		11,585		12,001
Net income per share	$	0.25	$	0.05

XML

Common Stock Repurchase (Schedule Of Stock Repurchase Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		26 Months Ended	29 Months Ended	258 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013	Jun. 29, 2013	Jun. 29, 2013
Common Stock Repurchase [Abstract]
Number of shares repurchased	16	6		1,688	4,032
Cost of shares repurchased	$ 350	$ 113	$ 32,079	$ 32,429	$ 68,980
Average price per share	$ 22.00	$ 17.97

XML

Net Income Per Share (Schedule Of Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Net Income Per Share [Abstract]
Net income	$ 2,886	$ 597
Weighted average number of common shares outstanding - basic	11,528,000	11,999,000
Basic earnings (loss) per common share	$ 0.25	$ 0.05
Effect of dilutive securities: stock options and ESPP	57,000	2,000
Weighted average number of common shares outstanding - diluted	11,585,000	12,001,000
Net income per share, diluted	$ 0.25	$ 0.05
Antidilutive securities excluded from computation of EPS	1,235,439	1,656,126
Antidilutive securities excluded from computation of earnings per share average price per share	$ 26.16	$ 26.57

XML

Stock-Based Compensation (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			0 Months Ended					9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013	Aug. 17, 2001 2001 Stock Option Plan [Member]	Aug. 17, 2007 2001 Stock Option Plan [Member] Expiration From Grant Date [Member]	Aug. 17, 2001 2001 Stock Option Plan [Member] Expiration From Grant Date [Member]	Aug. 17, 2007 2001 Stock Option Plan [Member] Expiration From Termination Of Service [Member]	Aug. 17, 2001 2001 Stock Option Plan [Member] Expiration From Termination Of Service [Member]	Dec. 29, 2012 2009 Equity Incentive Plan [Member]	Aug. 14, 2009 2009 Equity Incentive Plan [Member]	Aug. 14, 2009 2009 Equity Incentive Plan [Member] Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 643	$ 745
Options granted, estimated total grant date fair value	2,198
Unrecorded stock-based compensation related to stock options	4,736
Unrecognized stock-based compensation amortization period	2 years 1 month 6 days
Shares reserved for issuance				2,000,000						1,000,000	1,599,909
Options exercisable period				1 year
Expriation period					10 years	7 years	30 days	30 days	10 years
Vesting period				5 years					5 years
Number of shares available for grant	640,571		797,151							159,509
Prior forfeited shares available for grant										1,440,400
Percentage of options to vest on each of the first five anniversaries	20.00%
Weighted average fair value per share	$ 9.68
Intrinsic value	13
Proceeds from stock options exercised	271
Intrinsic value of options outstanding	3,236
Intrinsic value of options exercisable	1,122
Percentage of salary allowable to purchase shares for ESPP	20.00%
Purchase price percentage for ESPP	95.00%
Shares allowable for purchase during offering period of ESPP	500
Proceeds from ESPP	$ 40	$ 63

XML

Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) (USD $)	3 Months Ended
	Jun. 29, 2013
Stock-Based Compensation [Abstract]
Balance, March 30, 2013, Available for Grant	797,151
Granted	(227,000)
Cancelled	70,420
Balance, June 29, 2013, Available for Grant	640,571
Balance, March 30, 2013, Options Outstanding	1,532,640
Granted	227,000
Exercised	(12,849)
Cancelled	(70,420)
Balance, June 29, 2013, Options Outstanding	1,676,371
Balance, March 30, 2013, Options Outstanding, Weighted Average Exercise Price	$ 25.29
Granted	$ 22.15
Exercised	$ 21.11
Canceled	$ 35.66
Balance, June 29, 2013, Options Outstanding, Weighted Average Exercise Price	$ 24.46

XML

Income Taxes

3 Months Ended

Jun. 29, 2013

Income Taxes [Abstract]

Income Taxes

Note 6 – Income Taxes

The income tax benefit for the three months ended June 29, 2013 was $314,000 on income before tax of $2,572,000 at the effective tax benefit rate of 12% compared to a tax provision of $229,000 on income before tax of $826,000 at the effective tax rate of 28% in the first quarter of the prior fiscal year.

The income tax benefit reported for the three months ended June 29, 2013 resulted primarily from $949,000 of income tax reserve releases due to expirations of statute of limitations on uncertain tax positions. There were no such statute of limitations expirations in the first quarter of the prior fiscal year.

The income tax benefit or provision for interim periods may not reflect the Company’s computed estimated annual effective tax rate and differs from the taxes computed at the federal and state statutory rates primarily due to the effects of foreign rate differentials, non-deductible stock-based compensation expense, tax-exempt interest income, R&D tax credits, tax contingencies, and the domestic production activities deduction.

During the three months ended June 29, 2013,  the liability for uncertain income tax positions excluding accrued interest and penalties decreased from $3,160,000 to $2,420,000. Of the total $2,420,000 of unrecognized tax benefits, $1,768,000 represents the amount that, if recognized, would favorably affect the Company’s effective income tax rate in a future period. The Company cannot conclude on the range of cash payments that will be made within the next twelve months associated with its uncertain tax positions.

The Company records interest and penalties related to unrecognized tax benefits in income tax expense. As ofJune 29, 2013, the Company had approximately $295,000 accrued for estimated interest and $159,000 for estimated penalties related to uncertain tax positions. For the three months ended June 29, 2013, the Company recorded estimated interest reduction of $143,000 and estimated penalties of $2,000.  

The balance of unrecognized income tax benefits, including accrued interest and accrued penalties on June 29, 2013, was approximately $145,000related to tax positions for which it is reasonably possible that the statute of limitations will expire in various jurisdictions within the next twelve months.

The Company’s major tax jurisdictions are the United States federal, State of California and Hong Kong, and the Company’s income tax returns are no longer subject to examination by these taxing authorities for fiscal years before2002.

XML

Cash And Cash Equivalents And Investments (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013	Mar. 31, 2012	Apr. 02, 2011
Financing Receivable, Recorded Investment [Line Items]
Unrealized (loss) gain from short-term investments, categorized as trading	$ (19)	$ (97)
Proceeds from Sale and Maturity of Short-Term Available-for-sale securities	50,012	25,765
Available-for-sale Securities, Gross Realized Gain (Loss)	152
ARS, rate of resetting interval	35 days
ARS at par	2,100
ARS, estimated fair value	1,900
ARS redemption at par value	12,950		13,000	4,700	36,450
Long Term Note Receivable	300
Annual interest rate	5.00%
Additional capital to be raised by investee to fulfill conversion feature	4,000
Investment To Be Made If Conversion Feature Fulfilled	1,700
Maximum [Member]
Financing Receivable, Recorded Investment [Line Items]
Available for sale contractual maturities period	24 years
Fitch, AAA Rating [Member] | Standard & Poor's, AAA Rating [Member]
Financing Receivable, Recorded Investment [Line Items]
ARS non-current	$ 2,100

XML

Commitments And Contingencies (Schedule Of Future Minimum Rental Payments Due By Fiscal Year For Operating Leases) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013
Commitments And Contingencies [Abstract]
2014 (remaining 9 months)	$ 679
2015	865
2016	787
2017	55
Operating lease payments due, total	$ 2,386

XML

Common Stock Repurchase

3 Months Ended

Jun. 29, 2013

Common Stock Repurchase [Abstract]

Common Stock Repurchase

Note 9 – Common Stock Repurchase

Common Stock Repurchase

Stock repurchase activities for the three months ended June 29, 2013 and June 30, 2012 are as follows:

	Three Months Ended
	June 29,		June 30,
	2013		2012
Number of shares repurchased		16,000		6,000
Cost of shares repurchased	$	350,000	$	113,000
Average price per share	$	22.00	$	17.97

In January 2011, the Board of Directors designated $60,000,000 of its cash, cash equivalents and investments for a major stock repurchase during the period from January 2011 through March 2013, and accordingly, increased the Company’s share repurchase program from approximately 556,000 shares to 2,500,000 shares. From January 2011 through March 30, 2013, the Company applied approximately $32,079,000 to stock repurchases. 

The amended repurchase program has no expiration date except when an aggregate of 2,500,000 shares have been repurchased, either in the open market or through private transactions. Under this program, cumulatively the Company had repurchased approximately 1,688,000 shares for $32,429,000 as of June 29, 2013, leaving approximately 812,000 shares authorized for future repurchase under the Company’s current repurchase program.

Since the inception of the Company’s initial share repurchase program in 1992 through June 29, 2013, the Company has repurchased a total of approximately 4,032,000 shares of the common stock for an aggregate cost of $68,980,000 under its share repurchase programs. Upon their repurchase, shares are restored to the status of authorized but unissued shares.

XML

Stock-Based Compensation

3 Months Ended

Jun. 29, 2013

Stock-Based Compensation [Abstract]

Stock-Based Compensation

Note 5 - Stock-Based Compensation

The stock-based compensation expense for the three months ended June 29, 2013 was $643,000, compared to $745,000 for the same period of the prior fiscal year.

The Company granted options to employees with an estimated grant date fair value of $2,198,000in the three months ended June 29, 2013.  The Company did not grant stock options in the same period of the prior fiscal year. As of June 29, 2013, the unrecorded stock-based compensation related to stock options was $4,736,000 (net of estimated forfeitures) and will be recognized over an estimated weighted average amortization period of approximately 2.1 years.

The Company’s shareholders approved the adoption of the 2001 Stock Option Plan (the “2001 Plan”) and the reservation of 2,000,000 shares of common stock for issuance under 2001 Plan at the August 17, 2001 annual meeting of shareholders. Options granted under the 2001 Plan were granted at the fair market value of the Company’s common stock on the date of grant and generally expired sevenyears from the date of grant or thirtydays after termination of service, whichever occurs first.  The options generally were exercisable beginning one year from date of grant and generally vest ratably over a five-year period. On August 24, 2006, the Company’s board of directors approved a change in grant policy of the 2001 Plan to only grant non-statutory stock options to better align the Company’s compensation plan to employee incentives and to Company objectives. On August 17, 2007, the Company’s board of directors approved that all future stock option grants would have a ten-year term, which is within the guidelines of the Company’s 2001 Plan, subject to earlier expiration thirtydays after termination of service. As of August 14, 2009, no further options may be granted under the 2001 Plan.

The Company’s shareholders approved the adoption of the 2009 Equity Incentive Plan (the “2009 Plan”) at the August 14, 2009 annual meeting for shareholders. Under the 2009 Plan, the total number of shares of Company common stock reserved for issuance consists of 1,000,000 shares plus (1) the 159,509 shares which remained authorized for issuance under the 2001 Plan but which were not subject to outstanding stock awards as of August 14, 2009, and (2) those of the 1,440,400 shares, subject to stock awards outstanding under the 2001 Plan as of August 14, 2009, that terminate prior to exercise and would otherwise be returned to the share reserves under the 2001 Plan, with the total shares in addition to the 1,000,000 shares thus being up to a maximum of 1,599,909 shares. The 2009 Plan allows the Company to continue its prior option practices under the 2001 Plan to grant non-statutory options to key employees with an exercise price equal to the fair market value of the Company’s stock on the date of grant. The Company’s options typically have a term of tenyears and vest in 20% installmentson each of the firstfiveanniversaries of the date of grant. The 2009 Plan also provides the Company with the flexibility in designing equity incentives, including restricted stock awards, stock appreciation rights, restricted stock unit awards, performance stock awards, and performance cash awards.

The following table summarizes the activities under the 2001 and 2009 Plans for the three months ended June 29, 2013:

		Options Outstanding
	Available for Grant	Number of Shares		Weighted Average Exercise Price
Balance, March 30, 2013	797,151	1,532,640	$	25.29
Granted	(227,000)	227,000		22.15
Exercised	-	(12,849)		21.11
Canceled	70,420	(70,420)		35.66
Balance, June 29, 2013	640,571	1,676,371	$	24.46

The weighted average fair value of options, as determined under the authoritative guidance for stock compensation, granted to employees under the 2009 Plan during the three months ended June 29, 2013  was$9.68per share. The Company did not grant stock options during the three months ended June 30, 2012. The total intrinsic value of options exercised (which is the amount by which the stock price exceeded the exercise price of the option on the date of the exercise) during the three months ended June 29, 2013 was $13,000.  During the three months ended June 29, 2013, the amount of cash received from employees as a result of employee stock option exercises was $271,000.

The options outstanding and exercisable as of June 29, 2013, under the 2001 and 2009 Plans are in the following exercise price ranges:

					Options Outstanding				Options Exercisable
Range of Exercise Prices					Number Outstanding	Weighted-Average Remaining Contractual Life (Years)		Weighted-Average Exercise Price	Number Outstanding		Weighted-Average Exercise Price
$	17.29	-	$	19.99	303,700	8.44	$	18.88	38,560	$	18.95
	20.00	-		24.99	826,671	7.42		21.66	367,603		21.24
	25.00	-		29.99	289,600	5.61		26.94	239,888		26.82
	30.00	-		34.99	84,500	4.28		33.93	84,500		33.93
	35.00	-		39.99	87,800	3.95		35.83	87,800		35.83
	40.00	-		44.99	68,100	0.67		41.05	68,100		41.05
	45.00	-		46.92	16,000	0.42		46.92	16,000		46.92
$	17.29	-	$	46.92	1,676,371	6.61	$	24.46	902,451	$	27.18

Options outstanding and options exercisable under the option plans had a total intrinsic value of $3,236,000 and $1,122,000 as of June 29, 2013.

2000 Employee Stock Purchase Plan (“ESPP”).Under the ESPP, eligible employees may elect to withhold up to 20% of their cash compensation to purchase shares of the Company’s common stock at a price equal to 95% of the market value of the stock at the time of purchase, which is at the end of the six-month offering period.  An eligible employee may purchase no more than 500 shares during any six-month offering period. For the three months ended June 29, 2013, the amount of cash received from employees as a result of ESPP purchases was$40,000 compared to $63,000for the same period of the prior fiscal year.

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 2,886	$ 597
Non-cash adjustments to net income:
Depreciation and amortization	236	358
Provision for doubtful accounts and sales returns	54	130
Provision for excess and obsolete inventories	194	156
Deferred income taxes		(127)
Stock-based compensation	643	745
Tax (provision) benefit related to stock-based compensation plans	(12)	7
Unrealized loss from short-term investments, categorized as trading	19	97
Amortization of premium on short-term investments	586	597
Changes in operating assets and liabilities:
Trade accounts receivable	(407)	137
Inventories	(268)	1,358
Prepaid expenses and other assets	14	(92)
Prepaid income taxes	(82)	15
Trade accounts payable and accrued expenses	803	165
Deferred revenue	10	40
Income taxes payable	(833)	325
Net cash provided by operating activities	3,843	4,508
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(52)	(43)
Purchases of investments	(53,977)	(49,624)
Sales of investments	36,688	6,398
Maturities and redemptions of investments	26,307	32,117
Net cash provided by (used in) investing activities	8,966	(11,152)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of stock options and employee stock purchase plan	311	312
Stock repurchases	(350)	(113)
Net cash (used in) provided by financing activities	(39)	199
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	12,770	(6,445)
CASH AND CASH EQUIVALENTS:
Beginning of period	16,414	19,860
End of period	29,184	13,415
Supplemental cash flow disclosures:
Income taxes paid, net of refunds	$ 599	$ 7

XML

Significant Customers (Details)	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Medical Equipment Company [Member]
Revenue, Major Customer [Line Items]
Percentage of revenue by major customers	12.00%	11.00%
Distributor One [Member]
Revenue, Major Customer [Line Items]
Percentage of revenue by major customers	10.00%

XML

Cash And Cash Equivalents And Investments (Schedule Of Investments By Contractual Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Mar. 30, 2013
Available-for-sale securities:
Total short-term investments	$ 126,456	$ 123,847
Total long-term investments	1,900	13,800
Short-term Investments [Member]
Trading securities:
Due in one year or less	9,685	9,673
Available-for-sale securities:
Due in 12 months or less	32,590	45,190
Due in 12 to 24 months	38,518	23,019
Due in 24 to 36 months	29,556	32,345
Due in 36 to 49 months	16,107	13,620
Total short-term investments	126,456	123,847
Long-term Investments [Member]
Available-for-sale securities:
Due after ten years	$ 1,900	$ 13,800

XML

Fair Value (Tables)

3 Months Ended

Jun. 29, 2013

Fair Value [Abstract]

Schedule Of Assets And Liabilities Measured On A Recurring Basis

	June 29, 2013
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	25,729	(1)	$	-	$	-	$	25,729
Municipal bonds		-			82,398		-		82,398
Corporate bonds		-			26,394		-		26,394
Certificates of deposits		5,075			1,406		-		6,481
Commercial paper		-			1,498		-		1,498
Equity mutual funds related to NQDCP		9,685			-		-		9,685
Long-term investments in ARS		-			-		1,900		1,900
Total assets at fair value	$	40,489		$	111,696	$	1,900	$	154,085
Liabilities
Obligation related to NQDCP	$	9,685		$	-	$	-	$	9,685
	March 30, 2013
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	13,476	(1)	$	-	$	-	$	13,476
Municipal bonds		-			58,658		-		58,658
Corporate bonds		-			25,825		-		25,825
Government agency bonds		-			16,187		-		16,187
Certificate of deposits		3,459			4,300		-		7,759
Commercial Papers					5,745				5,745
Equity mutual funds related to NQDCP		9,673			-		-		9,673
Long-term investments in ARS		-			-		13,800		13,800
Total assets at fair value	$	26,608		$	110,715	$	13,800	$	151,123
Liabilities
Obligation related to NQDCP	$	9,673		$	-	$	-	$	9,673

^{_________________________}

(1) Money market funds of $25,729,000 and $13,476,000 were classified as cash equivalents as of June 29, 2013 and March 30, 2013, respectively.

Schedule Of Level 3 Assets

	Three Months Ended
	June 29,		June 30,
	2013		2012
Beginning balance of ARS classified as Level 3	$	13,800	$	25,900
Redemption of investments in ARS at par		(12,950)		(12,750)
Reversals of unrealized losses due to redemptions		970		250
Change in fair value of existing ARS		80		200
Ending balance of ARS classified as Level 3	$	1,900	$	13,600

XML

Commitments And Contingencies

3 Months Ended

Jun. 29, 2013

Commitments And Contingencies [Abstract]

Commitments And Contingencies

Note 8 – Commitments and Contingencies

Indemnification

As is customary in the Company’s industry, the Company has agreed to defend certain customers, distributors, suppliers, and subcontractors against certain claims which third parties may assert that its products allegedly infringe on certain of their intellectual property rights, including patents, trademarks, trade secrets, or copyrights.  The Company has agreed to pay certain amounts of any resulting damage awards and typically has the option to replace any infringing product with non-infringing product.  The terms of these indemnification obligations are generally perpetual from the effective date of the agreement.  In certain cases, there are limits on and exceptions to the Company’s potential liability for indemnification relating to intellectual property infringement claims.  The Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements.  The Company has never paid any damage awards nor has it been required to defend any claims related to its indemnification obligations, and accordingly, it has not accrued any amounts for indemnification obligations.  However, there can be no assurance that the Company will not have any financial exposure under those indemnification obligations in the future.

Legal Proceedings

From time to time the Company is subject to possible claims or assessments from third parties arising in the normal course of business.  Management has reviewed such possible claims and assessments with the Company’s outside legal counsel and believes that it is unlikely that they will result in any material adverse effect on the Company’s financial condition, results of operations, or cash flows.

Product Return Reserve

The Company’s standard policy is to accept the return of defective parts for credit from non-distributor customers for a period of 90days from date of shipment. This period may be extended in certain cases. The Company records estimated product returns as a reduction to revenue in the same period as the related revenues are recorded. These estimates are based on historical experience, analysis of outstanding returned material authorizations and allowance authorizations data.

The reductions to revenue for estimated product returns for the three months ended June 29, 2013 and June 30, 2012 are as follows (in thousands):

Description		Balance at Beginning of Period		Charge	Deductions and Other(1)		Balance at End of Period
Three months ended June 29, 2013	$	230	$	60	$	(28)	$	262
Three months ended June 30, 2012	$	213	$	134	$	(8)	$	339

___________________

⁽¹⁾ Represents amounts charged to the allowance for sales returns.  

Warranty Reserve

While the Company’s sales returns are historically within the allowance established, it cannot guarantee that it will continue to experience the same return rates that it has had in the past.  Any significant increase in product failure rates and the resulting sales returns could have a material adverse effect on the operating results for the period or periods in which such returns materialize.

For sales through distributors, the Company’s policy is to replace under warranty defective products at its own expense for a period of 90days from date of shipment. This period may be extended in certain cases. This liability is limited to replacement of the product along with freight and delivery costs. In certain cases, the Company may pay for rework.

The Company reserves for estimated warranty costs in the same period as the related revenues are recorded. The estimate is based on historical expenses and is recorded as cost of sales. The warranty reserve was $53,000 as of June 29, 2013. Such amount was $54,000 as of March 30, 2013.

Operating Lease Obligations

The Company’s future minimum lease payments under non-cancelable operating leases as of June 29, 2013 are as follows (in thousands):

Payment Due by Fiscal Year	Operating Lease
2014 (remaining 9 months)		679
2015		865
2016		787
2017		55
	$	2,386

The Company leases facilities under non-cancelable lease agreements expiring at various times through April 2016.  Rental expense net of sublease income for the three months ended June 29, 2013 amounted to $257,000 compared to rental expense of $281,000 for the same period of last fiscal year.

XML

Stock-Based Compensation (Tables)

3 Months Ended

Jun. 29, 2013

Stock-Based Compensation [Abstract]

Schedule Of Stock Option Activity

		Options Outstanding
	Available for Grant	Number of Shares		Weighted Average Exercise Price
Balance, March 30, 2013	797,151	1,532,640	$	25.29
Granted	(227,000)	227,000		22.15
Exercised	-	(12,849)		21.11
Canceled	70,420	(70,420)		35.66
Balance, June 29, 2013	640,571	1,676,371	$	24.46

Schedule Of Options Outstanding And Exercisable

					Options Outstanding				Options Exercisable
Range of Exercise Prices					Number Outstanding	Weighted-Average Remaining Contractual Life (Years)		Weighted-Average Exercise Price	Number Outstanding		Weighted-Average Exercise Price
$	17.29	-	$	19.99	303,700	8.44	$	18.88	38,560	$	18.95
	20.00	-		24.99	826,671	7.42		21.66	367,603		21.24
	25.00	-		29.99	289,600	5.61		26.94	239,888		26.82
	30.00	-		34.99	84,500	4.28		33.93	84,500		33.93
	35.00	-		39.99	87,800	3.95		35.83	87,800		35.83
	40.00	-		44.99	68,100	0.67		41.05	68,100		41.05
	45.00	-		46.92	16,000	0.42		46.92	16,000		46.92
$	17.29	-	$	46.92	1,676,371	6.61	$	24.46	902,451	$	27.18

XML

Cash And Cash Equivalents And Investments (Tables)

3 Months Ended

Jun. 29, 2013

Cash And Cash Equivalents And Investments [Abstract]

Schedule Of Cash And Cash Equivalents

	June 29, 2013		March 30, 2013
Cash	$	3,455	$	2,938
Cash equivalents:
Money market funds		25,729		13,476
Total cash and cash equivalents	$	29,184	$	16,414

Schedule Of Investments

	June 29, 2013
		Amortized		Unrealized		Unrealized		Carrying
		Cost		Gain		Loss		Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	9,685	$	-	$	-	$	9,685
Available-for-sale securities:
Municipal bonds		82,590		62		(254)		82,398
Corporate bonds		26,547		43		(196)		26,394
Certificates of deposits		6,478		3		-		6,481
Commercial papers		1,498		-		-		1,498
Total short-term investments	$	126,798	$	108	$	(450)	$	126,456
Long-term investments:
ARS available-for sale securities	$	2,100	$	-	$	(200)	$	1,900
	March 30, 2013
		Amortized		Unrealized		Unrealized		Carrying
		Cost		Gain		Loss		Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	9,673	$	-	$	-	$	9,673
Available-for-sale securities:
Municipal bonds		58,524		156		(22)		58,658
Corporate bonds		25,667		161		(3)		25,825
Government agency bonds		16,106		82		(1)		16,187
Certificates of deposits		7,758		5		(4)		7,759
Commercial Papers		5,743		2		-		5,745
Total short-term investments	$	123,471	$	406	$	(30)	$	123,847
Long-term investments:
ARS available-for sale securities	$	15,050	$	-	$	(1,250)	$	13,800

Schedule Of Investments By Contractual Maturity

	June 29, 2013		March 30, 2013
Short-term investment:
Trading securities:
Due in one year or less	$	9,685	$	9,673
Available-for-sale securities:
Due in 12 months or less		32,590		45,190
Due in 12 to 24 months		38,518		23,019
Due in 24 to 36 months		29,556		32,345
Due in 36 to 49 months		16,107		13,620
Total short-term investments	$	126,456	$	123,847
Long-term investment:
Available-for-sale securities at fair value:
Due after ten years	$	1,900	$	13,800
Total long-term investments	$	1,900	$	13,800

XML

Document And Entity Information	3 Months Ended
	Jun. 29, 2013	Aug. 02, 2013
Document And Entity Information [Abstract]
Entity Registrant Name	Supertex Inc
Entity Central Index Key	0000730000
Current Fiscal Year End Date	--03-29
Entity Filer Category	Accelerated Filer
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 29, 2013
Trading Symbol	supx
Entity Common Stock, Shares Outstanding		11,561,248

XML

Inventories (Tables)

3 Months Ended

Jun. 29, 2013

Inventories [Abstract]

Schedule Of Inventory

	June 29, 2013		March 30, 2013
Raw materials	$	442	$	470
Work-in-process		7,592		7,310
Finished goods		2,104		2,324
Finished goods at distributors and on consignment		1,280		1,240
Total inventories	$	11,418	$	11,344