10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

/X/ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES

      EXCHANGE ACT OF 1934

       For the quarterly period ended November 30, 2017

OR

/ / TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES

     EXCHANGE ACT OF 1934

     For the transition period from _________ to __________

Commission file number: 000-22893

AEHR TEST SYSTEMS

  (Exact name of Registrant as specified in its charter)

California	94-2424084
(State or other jurisdiction of	(I.R.S. Employer Identification No.)
incorporation or organization)
400 Kato Terrace
Fremont, CA	94539
(Address of principal	(Zip Code)
executive offices)

(510) 623-9400

(Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period as the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes X      No ___

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes X      No ___

1

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company,"  and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer  ___                               Accelerated filer  ___

Non-accelerated filer  ___                                 Smaller reporting company X

(Do not check if a smaller reporting company)

Emerging growth company  ___

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ___

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ___   No X

Number of shares of the registrant’s common stock, $0.01 par value, outstanding as of December 29, 2017 was 21,802,037.

2

AEHR TEST SYSTEMS

FORM 10-Q

FOR THE QUARTER ENDED NOVEMBER 30, 2017

INDEX

PART I. FINANCIAL INFORMATION
ITEM 1. Financial Statements (Unaudited)
Condensed Consolidated Balance Sheets at November 30, 2017 and May 31, 2017	4
Condensed Consolidated Statements of Operations for the Three and Six Months Ended November 30, 2017 and 2016	5
Condensed Consolidated Statements of Comprehensive Income (Loss) for the Three and Six Months Ended November 30, 2017 and 2016	6
Condensed Consolidated Statements of Cash Flows for the Six Months Ended November 30, 2017 and 2016	7
Notes to Condensed Consolidated Financial Statements	8
ITEM 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	20
ITEM 3. Quantitative and Qualitative Disclosures About Market Risks	25
ITEM 4. Controls and Procedures	26
PART II. OTHER INFORMATION
ITEM 1. Legal Proceedings	27
ITEM 1A. Risk Factors	27
ITEM 2. Unregistered Sales of Equity Securities and Use of Proceeds	27
ITEM 3. Defaults Upon Senior Securities	27
ITEM 4. Mine Safety Disclosures	27
ITEM 5. Other Information	27
ITEM 6. Exhibits	27
SIGNATURES	28
Index to Exhibits	29

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PART I. FINANCIAL INFORMATION

Item 1. FINANCIAL STATEMENTS (Unaudited)

AEHR TEST SYSTEMS

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except per share data)

(unaudited)

	November 30,	May 31,
	2017	2017
		(1)
ASSETS
Current assets:
Cash and cash equivalents	$9,959	$17,803
Short-term investments	5,969	--
Accounts receivable, net	3,490	4,010
Inventories	8,225	6,604
Prepaid expenses and other current assets	2,098	961
Total current assets	29,741	29,378
Property and equipment, net	1,166	1,419
Other assets	94	95
Total assets	$31,001	$30,892
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
Accounts payable	$1,789	2,808
Accrued expenses	1,607	1,609
Customer deposits and deferred revenue, short-term	3,142	3,467
Total current liabilities	6,538	7,884
Long-term debt	6,110	6,110
Deferred revenue, long-term	251	104
Total liabilities	12,899	14,098
Aehr Test Systems shareholders' equity:
Common stock, $0.01 par value:
Authorized: 75,000 shares; Issued and outstanding: 21,797 shares and 21,340 shares at November 30, 2017 and May 31, 2017, respectively	218	213
Additional paid-in capital	82,304	81,128
Accumulated other comprehensive income	2,306	2,249
Accumulated deficit	(66,707)	(66,777)
Total Aehr Test Systems shareholders' equity	18,121	16,813
Noncontrolling interest	(19)	(19)
Total shareholders' equity	18,102	16,794
Total liabilities and shareholders' equity	$31,001	$30,892

(1)

The condensed consolidated balance sheet at May 31, 2017 has been derived from the audited consolidated financial statements at that date.

The accompanying notes are an integral part of these

condensed consolidated financial statements.

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AEHR TEST SYSTEMS

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

(unaudited)

	Three Months Ended		Six Months Ended
	November 30,		November 30,
	2017	2016	2017	2016
Net sales	$7,923	$4,216	$14,893	$9,534
Cost of sales	4,792	2,753	8,844	5,865
Gross profit	3,131	1,463	6,049	3,669
Operating expenses:
Selling, general and administrative	1,854	1,707	3,645	3,423
Research and development	1,090	1,040	2,045	2,100
Total operating expenses	2,944	2,747	5,690	5,523
Income (loss) from operations	187	(1,284)	359	(1,854)
Interest expense, net	(105)	(181)	(212)	(359)
Other (expense) income, net	(7)	43	(67)	40
Income (loss) before income tax expense	75	(1,422)	80	(2,173)
Income tax expense	(15)	(30)	(10)	(34)
Net income (loss)	60	(1,452)	70	( 2,207)
Less: Net income attributable to the noncontrolling interest	--	--	--	--
Net income (loss) attributable to Aehr Test Systems common shareholders	$60	$(1,452)	$70	$(2,207)
Net income (loss) per share
Basic	$0.00	$(0.09)	$0.00	$(0.15)
Diluted	$0.00	$(0.09)	$0.00	$(0.15)
Shares used in per share calculations:
Basic	21,645	16,029	21,531	14,673
Diluted	22,883	16,029	22,937	14,673

The accompanying notes are an integral part of these

condensed consolidated financial statements.

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AEHR TEST SYSTEMS

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(in thousands, unaudited)

	Three Months Ended		Six Months Ended
	November 30,		November 30,
	2017	2016	2017	2016
Net income (loss)	$60	$(1,452)	$70	$(2,207)
Other comprehensive income (loss), net of tax:     Net change in unrealized loss on investments	(3)	--	(3)	--
Net change in cumulative translation adjustments	1	(55)	60	(48)
Total comprehensive income (loss)	58	(1,507)	127	(2,255)
Less: Comprehensive income attributable to the noncontrolling interest	--	2	--	1
Comprehensive income (loss), attributable to Aehr Test Systems common shareholders	$58	$(1,509)	$127	$(2,256)

The accompanying notes are an integral part of these

condensed consolidated financial statements.

6

AEHR TEST SYSTEMS

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

	Six Months Ended
	November 30,
	2017	2016
Cash flows from operating activities:
Net income (loss)	$70	$(2,207)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Stock-based compensation expense	580	534
(Recovery of) provision for doubtful accounts	(14)	12
Amortization of debt issuance costs	--	89
Depreciation and amortization	190	129
Changes in operating assets and liabilities:
Accounts receivable	592	(972)
Inventories	(1,249)	1,335
Prepaid expenses and other current assets	(1,135)	(138)
Accounts payable	(1,005)	721
Accrued expenses	5	(201)
Customer deposits and deferred revenue	(178)	(739)
Income taxes payable	(9)	21
Net cash used in operating activities	(2,153)	(1,416)
Cash flows from investing activities:
Purchases of investments	(5,972)	--
Purchases of property and equipment	(313)	(88)
Net cash used in investing activities	(6,285)	(88)
Cash flows from financing activities:
Proceeds from issuance of common stock under private placement, net of issuance costs	--	5,299
Proceeds from issuance of common stock under employee plans, net of taxes paid related to share settlement of equity awards	601	463
Net cash provided by financing activities	601	5,762
Effect of exchange rates on cash and cash equivalents	(7)	(43)
Net (decrease) increase in cash and cash equivalents	(7,844)	4,215
Cash and cash equivalents, beginning of period	17,803	939
Cash and cash equivalents, end of period	$9,959	$5,154
Supplemental disclosure of non-cash flow information:
Fair value of common stock issued to settle accounts payable	$--	$323
Transfers of property and equipment to inventories	$372	$372

The accompanying notes are an integral part of these

condensed consolidated financial statements.

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AEHR TEST SYSTEMS

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCCOUNTING POLICIES

    The accompanying financial information has been prepared by Aehr Test Systems, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission, or SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (GAAP) have been condensed or omitted pursuant to such rules and regulations.

    In the opinion of management, the unaudited condensed consolidated financial statements for the interim periods presented have been prepared on a basis consistent with the May 31, 2017 audited consolidated financial statements and reflect all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the condensed consolidated financial position and results of operations as of and for such periods indicated. These unaudited condensed consolidated financial statements and notes thereto should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended May 31, 2017. Results for the interim periods presented herein are not necessarily indicative of results which may be reported for any other interim period or for the entire fiscal year.

    PRINCIPLES OF CONSOLIDATION. The condensed consolidated financial statements include the accounts of Aehr Test Systems and its subsidiaries (collectively, the "Company"). All significant intercompany balances have been eliminated in consolidation. For the Company’s majority owned subsidiary, Aehr Test Systems Japan K.K., the noncontrolling interest of the portion the Company does not own was reflected on the Condensed Consolidated Balance Sheets in Shareholders’ Equity and in the Condensed Consolidated Statements of Operations.

    ACCOUNTING ESTIMATES. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used to account for sales and revenue allowances, the allowance for doubtful accounts, inventory valuations, income taxes, stock-based compensation expenses, and product warranties, among others. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable under the circumstances. Actual results could differ materially from those estimates.

    REVENUE RECOGNITION. The Company recognizes revenue upon the shipment of products or the performance of services when: (1) persuasive evidence of the arrangement exists; (2) goods or services have been delivered; (3) the price is fixed or determinable; and (4) collectibility is reasonably assured. When a sales agreement involves multiple deliverables, such as extended support provisions, training to be supplied after delivery of the systems, and test programs specific to customers’ routine applications, the multiple deliverables are evaluated to determine the unit of accounting. Judgment is required to properly identify the accounting units of multiple element transactions and the manner in which revenue is allocated among the accounting units. Judgments made, or changes to judgments made, may significantly affect the timing or amount of revenue recognition.

    Revenue related to the multiple elements is allocated to each unit of accounting using the relative selling price hierarchy. Consistent with accounting guidance, the selling price is based upon vendor specific objective evidence (VSOE). If VSOE is not available, third party evidence (TPE) is used to establish the selling price. In the absence of VSOE or TPE, estimated selling price is used.

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    During the first quarter of fiscal 2013, the Company entered into an agreement with a customer to develop a next generation system, and the Company shipped the first system in July 2016. The project identifies multiple milestones with values assigned to each. The consideration earned upon achieving the milestone is required to meet the following conditions prior to recognition: (i) the value is commensurate with the vendor’s performance to meet the milestone, (ii) it relates solely to past performance, (iii) and it is reasonable relative to all of the deliverables and payment terms within the arrangement. Revenue is recognized for the milestone upon acceptance by the customer.

    The Company recognizes revenue in certain circumstances before physical delivery has occurred. In these arrangements, among other things, risk of ownership has passed to the customer, the customer has made a written fixed commitment to purchase the products, the customer has requested the products be held for future delivery as scheduled and designated by them, and no additional performance obligations exist by the Company. For these transactions, the products are segregated from inventory and normal billing and credit terms granted.

    Sales tax collected from customers is not included in net sales but rather recorded as a liability due to the respective taxing authorities. Provisions for the estimated future cost of warranty and installation are recorded at the time the products are shipped.

    Royalty-based revenue related to licensing income from performance test boards and burn-in boards is recognized upon the earlier of the receipt by the Company of the licensee’s report related to its usage of the licensed intellectual property or upon payment by the licensee.

    The Company’s terms of sales with distributors are generally FOB shipping point with payment due within 60 days. All products go through in-house testing and verification of specifications before shipment. Apart from warranty reserves, credits issued have not been material as a percentage of net sales. The Company’s distributors do not generally carry inventories of the Company’s products. Instead, the distributors place orders with the Company at or about the time they receive orders from their customers. The Company’s shipment terms to our distributors do not provide for credits or rights of return. Because the Company’s distributors do not generally carry inventories of our products, they do not have rights to price protection or to return products. At the time the Company ships products to the distributors, the price is fixed. Subsequent to the issuance of the invoice, there are no discounts or special terms. The Company does not give the buyer the right to return the product or to receive future price concessions. The Company’s arrangements do not include vendor consideration.

    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES. The Company’s significant accounting policies are disclosed in the Company’s Annual Report on Form 10-K for the year ended May 31, 2017.There have been no significant changes in our significant accounting policies during the six months ended November 30, 2017.

2. STOCK-BASED COMPENSATION

    Stock-based compensation expense consists of expenses for stock options, restricted stock units, or RSUs, and employee stock purchase plan, or ESPP, purchase rights. Stock-based compensation cost for stock options and ESPP purchase rights are measured at each grant date, based on the fair value of the award using the Black-Scholes option valuation model, and is recognized as expense over the employee’s requisite service period. This model was developed for use in estimating the value of publicly traded options that have no vesting restrictions and are fully transferable. The Company’s employee stock options have characteristics significantly different from those of publicly traded options. For RSUs, stock-based compensation cost is based on the fair value of the Company’s common stock at the grant date. All of the Company’s stock-based compensation is accounted for as an equity instrument. See Notes 11 and 12 in the Company’s Annual Report on Form 10-K for fiscal 2017 filed on August 29, 2017 for further information regarding the 2016 Equity Incentive Plan and the Amended and Restated 2006 ESPP.

9

  The following table summarizes the stock-based compensation expense related to the Company’s stock-based incentive plans for the three and six months ended November 30, 2017 and 2016 (in thousands):

	Three Months Ended		Six Months Ended
	November 30,		November 30,
	2017	2016	2017	2016
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Cost of sales	$57	$23	$79	$47
Selling, general and administrative	218	141	368	388
Research and development	89	51	133	99
Total stock-based compensation	$364	$215	$580	$534

    As of November 30, 2017 and 2016, there were no stock-based compensation costs capitalized as part of inventory.

    During the three months ended November 30, 2017 and 2016, the Company recorded stock-based compensation related to stock options and RSUs of $207,000 and $185,000, respectively. During the six months ended November 30, 2017 and 2016, the Company recorded stock-based compensation related to stock options and RSUs of $408,000 and $464,000, respectively.

    As of November 30, 2017, the total compensation cost related to unvested stock-based awards under the Company’s 2016 Equity Incentive Plans, but not yet recognized, was approximately $1,316,000, which is net of estimated forfeitures of $3,000. This cost will be amortized on a straight-line basis over a weighted average period of approximately 2.5 years.

    During the three months ended November 30, 2017 and 2016, the Company recorded stock-based compensation related to the ESPP of $157,000 and $30,000, respectively. During the six months ended November 30, 2017 and 2016, the Company recorded stock-based compensation related to the ESPP of $172,000 and $70,000, respectively. The increase in the three and six months ended November 30, 2017 is primarily due to employees increasing their ESPP elections during the current ESPP purchase period.

    As of November 30, 2017, the total compensation cost related to purchase rights under the ESPP but not yet recognized was approximately $49,000. This cost will be amortized on a straight-line basis over a weighted average period of approximately 0.3 years.

Valuation Assumptions

    Valuation and Amortization Method. The Company estimates the fair value of stock options granted using the Black-Scholes option valuation model and a single option award approach. The fair value under the single option approach is amortized on a straight-line basis over the requisite service periods of the awards, which is generally the vesting period.

    Expected Term. The Company’s expected term represents the period that the Company’s stock-based awards are expected to be outstanding and was determined based on historical experience, giving consideration to the contractual terms of the stock-based awards, vesting schedules and expectations of future employee behavior as evidenced by changes to the terms of its stock-based awards.

    Volatility. Volatility is a measure of the amounts by which a financial variable such as stock price has fluctuated (historical volatility) or is expected to fluctuate (expected volatility) during a period. The Company uses the historical volatility for the past four or five years, which matches the expected term of most of the option grants, to estimate expected volatility. Volatility for each of the ESPP’s four time periods of six months, twelve months, eighteen months, and twenty-four months is calculated separately and included in the overall stock-based compensation cost recorded.

10

    Risk-Free Interest Rate. The Company bases the risk-free interest rate used in the Black-Scholes option valuation model on the implied yield in effect at the time of option grant on U.S. Treasury zero-coupon issues with a remaining term equivalent to the expected term of the stock awards including the ESPP.

    Fair Value. The fair value of the Company’s stock options granted to employees for the three and six months ended November 30, 2017 and 2016 were estimated using the following weighted average assumptions in the Black-Scholes option valuation model:

	Three Months Ended		Six Months Ended
	November 30,		November 30,
	2017	2016	2017	2016
Expected term (in years)	4	4	4	4
Volatility	0.74	0.81	0.77	0.81
Risk-free interest rate	1.92%	1.10%	1.77%	1.02%
Weighted average grant date fair value	$1.93	$1.66	$2.22	$1.09

    There were no ESPP purchase rights granted for the three and six months ended November 30, 2017 and 2016.

    The following tables summarize the Company’s stock option and RSU transactions during the three and six months ended November 30, 2017 (in thousands):

	Available
	Shares
Balance, May 31, 2017	2,169
Options granted	(224)
RSUs granted	(64)
Shares cancelled	--
Balance, August 31, 2017	1,881
Options granted	(41)
RSUs granted	--
Shares cancelled	--
Balance, November 30, 2017	1,840

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    The following table summarizes the stock option transactions during the three and six months ended November 30, 2017 (in thousands, except per share data):

	Outstanding Options
		Weighted
	Number	Average	Aggregate
	of	Exercise	Intrinsic
	Shares	Price	Value
Balances, May 31, 2017	3,074	$1.73	$8,763
Options granted	224	$3.93
Options cancelled	--	$--
Options exercised	(189)	$1.23
Balances, August 31, 2017	3,109	$1.92	$4,612
Options granted	41	$3.46
Options cancelled	--	$--
Options exercised	(132)	$1.46
Balances, November 30, 2017	3,018	$1.96	$2,230
Options fully vested and expected to vest at November 30, 2017	2,984	$1.95	$2,220

 The options outstanding and exercisable at November 30, 2017 were in the following exercise price ranges (in thousands, except per share data):

	Options Outstanding			Options Exercisable
	at November 30, 2017			at November 30, 2017
Range of Exercise Prices	Number Outstanding Shares	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price	Number Exercisable Shares	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price	Aggregate Intrinsic Value
$0.59-$0.97	424	1.31	$0.68	424	1.31	$0.68
$1.09-$1.36	645	2.11	$1.27	645	2.10	$1.27
$1.68-$2.06	487	4.73	$1.74	276	4.03	$1.79
$2.10-$2.81	1,197	4.01	$2.45	953	3.99	$2.47
$3.46-$3.93	265	6.66	$3.88	22	6.66	$3.88
$0.59-$3.93	3,018	3.57	$1.96	2,320	3.00	$1.74	$1,985

    The total intrinsic value of options exercised during the three and six months ended November 30, 2017 was $269,000 and $745,000, respectively. The total intrinsic value of options exercised during the three and six months ended November 30, 2016 was $359,000 and $411,000, respectively. The weighted average remaining contractual life of the options exercisable and expected to be exercisable at November 30, 2017 was 3.56 years.

    There were no RSUs granted to employees for the three months ended November 30, 2017 or 2016. During the six months ended November 30, 2017, RSUs for 64,000 shares were granted. The market value on the date of the grant of these RSUs was $3.93 per share. During the six months ended November 30, 2016, RSUs for 138,000 shares were granted. The market value on the date of the grant of these RSUs was $1.68 per share. 4,000and 7,000 RSUs became fully vested during the three and six months ended November 30, 2017, respectively. 89,000 RSUs were unvested at November 30, 2017. The intrinsic value of the unvested RSUs at November 30, 2017 was $227,000.

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3. EARNINGS PER SHARE

    Basic earnings per share is determined using the weighted average number of common shares outstanding during the period. Diluted earnings per share is determined using the weighted average number of common shares and potential common shares (representing the dilutive effect of stock options, RSUs and ESPP shares) outstanding during the period using the treasury stock method.

    The following table presents the computation of basic and diluted net income (loss) per share attributable to the Company’s common shareholders (in thousands, except per share data):

	Three Months Ended		Six Months Ended
	November 30,		November 30,
	2017	2016	2017	2016
Numerator: Net income (loss)	$60	$(1,452)	$70	$(2,207)
Denominator for basic net income (loss) per share:
Weighted average shares outstanding	21,645	16,029	21,531	14,673
Shares used in basic net income (loss) per share calculation	21,645	16,029	21,531	14,673
Effect of dilutive securities	1,238	--	1,406	--
Denominator for diluted net income (loss) per share	22,883	16,029	22,937	14,673
Basic net income (loss) per share	$0.00	$(0.09)	$0.00	$(0.15)
Diluted net income (loss) per share	$0.00	$(0.09)	$0.00	$(0.15)

    For the purpose of computing diluted earnings per share, the weighted average number of potential common shares does not include stock options with an exercise price greater than the average fair value of the Company’s common stock for the period, as the effect would be anti-dilutive. Stock options to purchase 263,000 shares of common stock were outstanding as of November 30, 2017 but were not included in the computation of diluted net income per share, because the inclusion of such shares would be anti-dilutive. In the three and six months ended November 30, 2016, potential common shares have not been included in the calculation of diluted net loss per share as the effect would be anti-dilutive. As such, the numerator and the denominator used in computing both basic and diluted net loss per share for this period are the same. Stock options to purchase 3,229,000 shares of common stock, RSUs for 72,000 shares and ESPP rights to purchase 246,000 ESPP shares were outstanding as of November 30, 2016, but were not included in the computation of diluted net loss per share, because the inclusion of such shares would be anti-dilutive. The 2,657,000 shares convertible under the convertible notes outstanding at November 30, 2017 and 2016 were not included in the computation of diluted net income (loss) per share, because the inclusion of such shares would be anti-dilutive.

4. CASH, CASH EQUIVALENTS AND INVESTMENTS

    The following table summarizes the Company’s cash, cash equivalents and investments by security type at November 30, 2017 (in thousands):

13

	Cost	Gross Unrealized Loss	Estimated Fair Value
Cash	$1,802	$--	$1,802
Cash equivalents:
Money market funds	4,164	--	4,164
U.S. Treasury securities	3,993	--	3,993
Total Cash equivalents	8,157	--	8,157
Total Cash and Cash equivalents	$9,959	$--	$9,959
Short-term investments:
U.S. Treasury securities	$5,972	$3	$5,969
Total Cash, Cash equivalents and Investments	$15,931	$3	$15,928

    Unrealized gains and temporary losses on investments classified as available-for-sale are included within accumulated other comprehensive income ("AOCI"), net of any related tax effect. Upon realization, those amounts are reclassified from AOCI to results of operations.

    The unrealized loss as of November 30, 2017 is not considered other-than-temporary.

5. FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company’s financial instruments are measured at fair value consistent with authoritative guidance. This authoritative guidance defines fair value, establishes a framework for using fair value to measure assets and liabilities, and disclosures required related to fair value measurements.

    The guidance establishes a fair value hierarchy based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity’s pricing based upon their own market assumptions. The fair value hierarchy consists of the following three levels:

Level 1 - instrument valuations are obtained from real-time quotes for transactions in active exchange markets involving identical assets.

Level 2 - instrument valuations are obtained from readily-available pricing sources for comparable instruments.

Level 3 - instrument valuations are obtained without observable market values and require a high level of judgment to determine the fair value.

    The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of November 30, 2017 (in thousands):

	Balance as of
	November 30, 2017	Level 1	Level 2	Level 3
Money market funds	$4,164	$4,164	$--	$--
U.S. Treasury securities	9,962	9,962	--	--
Certificate of deposit	50	--	50	--
Assets	$14,176	$14,126	$50	$--

The U.S. Treasury securities have maturities of three and six months.

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     The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of May 31, 2017 (in thousands):

	Balance as of
	May 31, 2017	Level 1	Level 2	Level 3
Money market funds	$15,516	$15,516	$--	$--
Certificate of deposit	50	--	50	--
Assets	$15,566	$15,516	$50	$--

    There were no financial liabilities measured at fair value as of November 30, 2017 and May 31, 2017.

    There were no transfers between Level 1 and Level 2 fair value measurements during the three and six months ended November 30, 2017.

    The carrying amounts of financial instruments including cash, cash equivalents, receivables, accounts payable and certain other accrued liabilities, approximate fair value due to their short maturities. Based on the borrowing rates currently available to the Company for loans with similar terms, the carrying value of the debt approximates the fair value.

    The Company has, at times, invested in debt and equity of private companies, and may do so again in the future, as part of its business strategy.

6. ACCOUNTS RECEIVABLE, NET

    Accounts receivable represent customer trade receivables and is presented net of allowances for doubtful accounts of $47,000 at November 30, 2017 and $61,000 at May 31, 2017. Accounts receivable are derived from the sale of products throughout the world to semiconductor manufacturers, semiconductor contract assemblers, electronics manufacturers and burn-in and test service companies. The Company’s allowance for doubtful accounts is based upon historical experience and review of trade receivables by aging category to identify specific customers with known disputes or collection issues. Uncollectible receivables are recorded as bad debt expense when all efforts to collect have been exhausted and recoveries are recognized when they are received.

7. INVENTORIES

    Inventories are comprised of the following (in thousands):

	November 30,	May 31,
	2017	2017
Raw materials and sub-assemblies	$5,020	$4,268
Work in process	2,970	2,059
Finished goods	235	277
	$8,225	$6,604

8. SEGMENT INFORMATION

    The Company operates in one reportable segment: the design, manufacture and marketing of advanced test and burn-in products to the semiconductor manufacturing industry.

    The following presents information about the Company’s operations in different geographic areas. Net sales are based upon ship-to location (in thousands).

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	United
	States	Asia	Europe	Total
Three months ended November 30, 2017:
Net sales	$1,964	$5,909	$50	$7,923
Property and equipment, net	1,116	39	11	1,166
Six months ended November 30, 2017:
Net sales	$3,254	$11,569	$70	$14,893
Property and equipment, net	1,116	39	11	1,166
Three months ended November 30, 2016:
Net sales	$1,709	$2,256	$251	$4,216
Property and equipment, net	740	39	14	793
Six months ended November 30, 2016:
Net sales	$4,873	$4,166	$495	$9,534
Property and equipment, net	740	39	14	793

    The Company’s Japanese and German subsidiaries primarily comprise the foreign operations. Substantially all of the sales of the subsidiaries are made to unaffiliated Japanese or European customers. Net sales from outside the United States include those of Aehr Test Systems Japan K.K. and Aehr Test Systems GmbH.

    Sales to the Company’s five largest customers accounted for approximately 94% and 96% of its net sales in the three and six months ended November 30, 2017, respectively. Two customers accounted for approximately 43% and 34% of the Company’s net sales in the three months ended November 30, 2017. Two customers accounted for approximately 43%, and 39% of the Company’s net sales in the six months ended November 30, 2017. Sales to the Company’s five largest customers accounted for approximately 96% and 95% of its net sales in the three and six months ended November 30, 2016, respectively. Two customers accounted for approximately 60% and 22% of the Company’s net sales in the three months ended November 30, 2016. Three customers accounted for approximately 50%, 19% and 16% of the Company’s net sales in the six months ended November 30, 2016. No other customers represented more than 10% of the Company’s net sales in the six months ended November 30, 2017 and 2016.

9. PRODUCT WARRANTIES

    The Company provides for the estimated cost of product warranties at the time revenues are recognized on the products shipped. While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company’s warranty obligation is affected by product failure rates, material usage and service delivery costs incurred in correcting a product failure. Should actual product failure rates, material usage or service delivery costs differ from the Company’s estimates, revisions to the estimated warranty liability would be required.

    The standard warranty period is one year for systems and ninety days for parts and service.

    The following is a summary of changes in the Company's liability for product warranties during the three and six months ended November 30, 2017 and 2016 (in thousands):

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	Three Months Ended		Six Months Ended
	November 30,		November 30,
	2017	2016	2017	2016
Balance at the beginning of the period	$119	$90	$113	$155
Accruals for warranties issued during the period	152	11	246	11
Accruals and adjustments (change in estimates) related to pre-existing warranties during the period	--	--	--	(54)
Settlement made during the period (in cash or in kind)	(138)	(29)	(226)	(40)
Balance at the end of the period	$133	$72	$133	$72

    The accrued warranty balance is included in accrued expenses on the accompanying condensed consolidated balance sheets.

10. ACCUMULATED OTHER COMPREHENSIVE INCOME

    Changes in the components of AOCI, net of tax, were as follows (in thousands):

	Cumulative Translation Adjustments	Unrealized Loss on Investments, Net	Total
Balance at May 31, 2017	$2,249	$--	$2,249
Other comprehensive income (loss) before  reclassifications	60	(3)	57
Amounts reclassified out of AOCI	--	--	--
Other comprehensive income (loss), net of tax	60	(3)	57
Balance at November 30, 2017	$2,309	$(3)	$2,306

11. INCOME TAXES

    Income taxes have been provided using the liability method whereby deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and net operating loss and tax credit carryforwards measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse or the carryforwards are utilized. Valuation allowances are established when it is determined that it is more likely than not that such assets will not be realized.

    Since fiscal 2009, a full valuation allowance was established against all deferred tax assets as management determined that it is more likely than not that certain deferred tax assets will not be realized.

    The Company accounts for uncertain tax positions consistent with authoritative guidance. The guidance prescribes a “more likely than not” recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The Company does not expect any material change in its unrecognized tax benefits over the next twelve months. The Company recognizes interest and penalties related to unrecognized tax benefits as a component of income taxes.

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    Although the Company files U.S. federal, various state, and foreign tax returns, the Company’s only major tax jurisdictions are the United States, California, Germany and Japan. Tax years 1997 - 2016 remain subject to examination by the appropriate governmental agencies due to tax loss carryovers from those years.

   On December 22, 2017, the "Tax Cuts and Jobs Act" was signed into law, significantly impacting several sections of the Internal Revenue Code. The Company is currently analyzing the impact of these changes and therefore an estimate of the impact to income taxes is not yet available. 

12. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM

    Customer deposits and deferred revenue, short-term (in thousands):

	November 30,	May 31,
	2017	2017
Customer deposits	$2,755	$3,264
Deferred revenue	387	203
	$3,142	$3,467

13. LONG-TERM DEBT

    On April 10, 2015, the Company entered into a Convertible Note Purchase and Credit Facility Agreement (the “Purchase Agreement”) with QVT Fund LP and Quintessence Fund L.P. (the “Purchasers”) providing for (a) the Company’s sale to the Purchasers of $4,110,000 in aggregate principal amount of 9.0% Convertible Secured Notes due 2017 (the “Convertible Notes”) and (b) a secured revolving loan facility (the “Credit Facility”) in an aggregate principal amount of up to $2,000,000. On August 22, 2016 the Purchase Agreement was amended to extend the maturity date of the Convertible Notes to April 10, 2019, decrease the conversion price from $2.65 per share to $2.30 per share, decrease the forced conversion price from $7.50 per share to $6.51 per share, and allow for additional equity awards.

    The Convertible Notes bear interest at an annual rate of 9.0% and will mature on April 10, 2019 unless repurchased or converted prior to that date. Interest is payable quarterly on March 1, June 1, September 1 and December 1 of each year. Debt issuance costs of $356,000, which were accreted over the term of the original loan using the effective interest rate method, were offset against the loan balance.

    The conversion price for the Convertible Notes is $2.30 per share and is subject to adjustment upon the occurrence of certain specified events. Holders may convert all or any part of the principal amount of their Convertible Notes in integrals of $10,000 at any time prior to the maturity date. Upon conversion, the Company will deliver shares of its common stock to the holder of Convertible Notes electing such conversion. The Company may not redeem the Convertible Notes prior to maturity.

    The maximum amount of $2,000,000 drawn against the Credit Facility has been converted to Convertible Notes, and at November 30, 2017 there was no remaining balance available to be drawn on the Credit Facility.

    The Company’s obligations under the Purchase Agreement are secured by substantially all of the assets of the Company.

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14. RECENT ACCOUNTING PRONOUNCEMENTS

    In May 2014, as part of its ongoing efforts to assist in the convergence of GAAP and International Financial Reporting Standards (“IFRS”), the Financial Accounting Standards Board (“FASB”) issued an accounting standard update related to revenue from contracts with customers. This standard sets forth a new five-step revenue recognition model which replaces the prior revenue recognition guidance in its entirety and is intended to eliminate numerous industry-specific pieces of revenue recognition guidance that have historically existed in GAAP. The underlying principle of the new standard is that a business or other organization will recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects what it expects in exchange for the goods or services. The standard also requires more detailed disclosures and provides additional guidance for transactions that were not addressed completely in the prior accounting guidance. The standard provides alternative methods of initial adoption and will become effective for the Company beginning in the first quarter of fiscal 2019. The FASB has issued several updates to the standard which i) defer the original effective date from January 1, 2017 to January 1, 2018, while allowing for early adoption as of January 1, 2017. ii) clarify the application of the principal versus agent guidance. and iii) clarify the guidance on inconsequential and perfunctory promises and licensing. In May 2016, the FASB issued an update to address certain narrow aspects of the guidance including collectibility criterion, collection of sales taxes from customers, noncash consideration, contract modifications and completed contracts. This issuance does not change the core principle of the guidance in the initial topic issued in May 2014. In December 2016, the FASB issued updated guidance regarding revenue from contracts with customers. Some topics that could impact the Company include corrections and improvements around the following: contract costs impairment testing, disclosure of remaining performance obligations and prior period obligations, contract modifications, and contract asset versus receivable. The Company is currently evaluating the impact of adopting this new guidance on its consolidated financial statements.

    In July 2015, the FASB issued an accounting standard update that requires management to measure inventory at the lower of cost or net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The Company adopted this new standard in fiscal year 2018. The adoption of this guidance does not have a significant impact on the Company’s consolidated financial statements.

    In November 2015, the FASB issued an accounting standard update related to deferred tax assets and liabilities. This standard simplifies the presentation of deferred income taxes to be classified as noncurrent in the consolidated balance sheet. The Company adopted this new standard in fiscal year 2018. The adoption of this guidance does not have a significant impact on the Company’s consolidated financial statements.

    In January 2016, the FASB issued an accounting standard update related to recognition and measurement of financial assets and financial liabilities. This standard changes accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. In addition, it clarifies guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. This standard is effective for us in fiscal year 2020. Early adoption is permitted. The Company is currently evaluating the impact of this new guidance on its consolidated financial statements.

    In February 2016, the FASB issued authoritative guidance related to leases. This guidance requires management to present all leases greater than one year on the balance sheet as a liability to make payments and an asset as the right to use the underlying asset for the lease term. This new standard will be effective for us in fiscal year 2020, with early adoption permitted. The Company is currently evaluating the impact of adopting this new guidance on its consolidated financial statements.

    In March 2016, the FASB released an accounting standard update that simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, forfeitures, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The Company adopted this new standard in fiscal year 2018. The adoption of this guidance does not have a significant impact on the Company’s consolidated financial statements.

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    In June 2016, the FASB issued an accounting standard update that requires measurement and recognition of expected credit losses for financial assets held based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. The accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2021 on a modified retrospective basis, and early adoption in fiscal 2020 is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements.

    In August 2016, the FASB issued authoritative guidance related to the classification of certain cash receipts and cash payments on the statement of cash flows. The accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2019 on a retrospective basis, and early adoption is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated statements of cash flows.

    In October 2016, the FASB issued an accounting standard update that requires recognition of the income tax consequences of intra-entity transfers of assets (other than inventory) at the transaction date. The accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2019 on a modified retrospective basis, and early adoption is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements.

    In November 2016, the FASB issued authoritative guidance related to statements of cash flows. This guidance clarifies that amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of period total amounts shown on the statement of cash flows. The accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2019 on a retrospective basis, and early adoption is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements.

Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

    The following discussion of the financial condition and results of operations should be read in conjunction with the unaudited condensed consolidated financial statements and the related notes that appear elsewhere in this report and with our Annual Report on Form 10-K for the fiscal year ended May 31, 2017 and the consolidated financial statements and notes thereto.

    In addition to historical information, this report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements in this report, including those made by our management, other than statements of historical fact, are forward-looking statements. These statements typically may be identified by the use of forward-looking words or phrases such as "believe," "expect," "intend," "anticipate," "should," "planned," "estimated," and "potential," among others and include, but are not limited to, statements concerning our expectations regarding our operations, business, strategies, prospects, revenues, expenses, costs and resources. These forward-looking statements are subject to certain risks and uncertainties that could cause our actual results to differ materially from those anticipated results or other expectations reflected in the forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in this report and other factors beyond our control, and in particular, the risks discussed in “Part II, Item 1A. Risk Factors” and those discussed in other documents we file with the SEC. All forward-looking statements included in this document are based on our current expectations, and we undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements.

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OVERVIEW

    We were founded in 1977 to develop and manufacture burn-in and test equipment for the semiconductor industry. Since our inception, we have sold more than 2,500 systems to semiconductor manufacturers, semiconductor contract assemblers and burn-in and test service companies worldwide. Our principal products currently are the Advanced Burn-in and Test System, or ABTS, the FOX full wafer contact parallel test and burn-in system, WaferPak contactors, the DiePak carrier and test fixtures.

    Our net sales consist primarily of sales of systems, WaferPak contactors, DiePak Carriers, test fixtures, upgrades and spare parts, revenues from service contracts, and engineering development charges. Our selling arrangements may include contractual customer acceptance provisions, which are mostly deemed perfunctory or inconsequential, and installation of the product occurs after shipment and transfer of title.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

    Our discussion and analysis of our financial condition and results of operations are based upon our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these condensed consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates, including those related to customer programs and incentives, product returns, bad debts, inventories, income taxes, financing operations, warranty obligations, and long-term service contracts. Our estimates are derived from historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Those results form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. For a discussion of the critical accounting policies, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations – Critical Accounting Policies and Estimates” in our Annual Report on Form 10-K for the fiscal year ended May 31, 2017.

    There have been no material changes to our critical accounting policies and estimates during the six months ended November 30, 2017 compared to those discussed in our Annual Report on Form 10-K for the fiscal year ended May 31, 2017.

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RESULTS OF OPERATIONS

    The following table sets forth items in our unaudited condensed consolidated statements of operations as a percentage of net sales for the periods indicated.

	Three Months Ended		Six Months Ended
	November 30,		November 30,
	2017	2016	2017	2016
Net sales	100.0%	100.0%	100.0%	100.0%
Cost of sales	60.5	65.3	59.4	61.5
Gross profit	39.5	34.7	40.6	38.5
Operating expenses:
Selling, general and administrative	23.4	40.5	24.5	35.9
Research and development	13.7	24.7	13.7	22.0
Total operating expenses	37.1	65.2	38.2	57.9
Income (loss) from operations	2.4	(30.5)	2.4	(19.4)
Interest expense, net	(1.3)	(4.3)	(1.4)	(3.8)
Other (expense) income, net	(0.2)	1.1	(0.5)	0.4
Income (loss) before income tax expense	0.9	(33.7)	0.5	(22.8)
Income tax expense	(0.1)	(0.7)	--	(0.3)
Net income (loss)	0.8	(34.4)	0.5	(23.1)
Less: Net income attributable to the noncontrolling interest	--	--	--	--
Net income (loss) attributable to Aehr Test Systems common shareholders	0.8%	(34.4)%	0.5%	(23.1)%

THREE MONTHS ENDED NOVEMBER 30, 2017 COMPARED TO THREE MONTHS ENDED NOVEMBER 30, 2016

    NET SALES. Net sales increased to $7.9 million for the three months ended November 30, 2017 from $4.2 million for the three months ended November 30, 2016, an increase of 87.9%. The increase in net sales for the three months ended November 30, 2017 was primarily due to the increases in both net sales of our Test During Burn-in (TDBI) products and wafer-level products. Net sales of the TDBI products for the three months ended November 30, 2017 were $5.1 million, and increased approximately $2.4 million from the three months ended November 30, 2016. Net sales of the wafer-level products for the three months ended November 30, 2017 were $2.8 million, and increased approximately $1.4 million from the three months ended November 30, 2016.

    GROSS PROFIT. Gross profit increased to $3.1 million for the three months ended November 30, 2017 from $1.5 million for the three months ended November 30, 2016, an increase of 114.0%. Gross profit margin increased to 39.5% for the three months ended November 30, 2017 from 34.7% for the three months ended November 30, 2016. The increase in gross profit margin was primarily due to manufacturing efficiencies due to an increase in net sales resulting in a 6.7% gross profit margin increase, partially offset by an increase in warranty provision resulting in a 1.7% decrease in gross profit margin.

    SELLING, GENERAL AND ADMINISTRATIVE. SG&A expenses increased to $1.9 million for the three months ended November 30, 2017 from $1.7 million for the three months ended November 30, 2016, an increase of 8.6%. The increase in SG&A expenses was primarily due to an increase in employment related expenses.

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    RESEARCH AND DEVELOPMENT. R&D expenses increased to $1.1 million for the three months ended November 30, 2017 from $1.0 million for the three months ended November 30, 2016, an increase of 4.8%. The increase in R&D expenses was primarily due to an increase in employment related expenses.

    INTEREST EXPENSE. Interest expense was $105,000 for the three months ended November 30, 2017 compared with $181,000 for the three months ended November 30, 2016. The decrease in interest expense in the three months ended November 30, 2017 was primarily due to the debt issuance costs related to the convertible notes becoming fully amortized at the end of fiscal 2017.

    OTHER (EXPENSE) INCOME, NET. Other expense, net was $7,000 for the three months ended November 30, 2017 compared with other income, net of $43,000 for the three months ended November 30, 2016. The change between other expense and other income was primarily due to losses or gains realized in connection with the fluctuation in the value of the dollar compared to foreign currencies during the referenced periods.

    INCOME TAX EXPENSE. Income tax expenses were $15,000 and $30,000 for the three months ended November 30, 2017 and 2016, respectively.

SIX MONTHS ENDED NOVEMBER 30, 2017 COMPARED TO SIX MONTHS ENDED NOVEMBER 30, 2016

    NET SALES. Net sales increased to $14.9 million for the six months ended November 30, 2017 from $9.5 million for the six months ended November 30, 2016, an increase of 56.2%. The increase in net sales for the six months ended November 30, 2017 was primarily due to the increases in both net sales of our Test During Burn-in (TDBI) products and wafer-level products. Net sales of the TDBI products for the six months ended November 30, 2017 were $7.9 million, and increased approximately $2.6 million from the six months ended November 30, 2016. Net sales of the wafer-level products for the six months ended November 30, 2017 were $7.0 million, and increased approximately $2.8 million from the six months ended November 30, 2016.

    GROSS PROFIT. Gross profit increased to $6.0 million for the six months ended November 30, 2017 from $3.7 million for the six months ended November 30, 2016, an increase of 64.9%. Gross profit margin increased to 40.6% for the six months ended November 30, 2017 from 38.5% for the six months ended November 30, 2016. The increase in gross profit margin was primarily due to manufacturing efficiencies due to an increase in net sales resulting in a 6.6% gross profit margin increase, partially offset by an increase in warranty provision resulting in a 2.1% decrease in gross profit margin, an increase in shipping cost resulting in a 0.9% decrease in gross profit margin, and an increase in direct material costs resulting in a 1.1% decrease in gross profit margin.

    SELLING, GENERAL AND ADMINISTRATIVE. SG&A expenses increased to $3.6 million for the six months ended November 30, 2017 from $3.4 million for the six months ended November 30, 2016, an increase of 6.5%. The increase in SG&A expenses was primarily due to an increase in employment related expenses.

    RESEARCH AND DEVELOPMENT. R&D expenses decreased to $2.0 million for the six months ended November 30, 2017 from $2.1 million for the six months ended November 30, 2016, a decrease of 2.6%. The decrease in R&D expenses was primarily due to a decrease in project expenses.

    INTEREST EXPENSE. Interest expense was $212,000 for the six months ended November 30, 2017 compared with $359,000 for the six months ended November 30, 2016. The decrease in interest expense in the six months ended November 30, 2017 was primarily due to the debt issuance costs related to the convertible notes becoming fully amortized at the end of fiscal 2017.

    OTHER (EXPENSE) INCOME, NET. Other expense, net was $67,000 for the six months ended November 30, 2017 compared with other income, net of $40,000 for the six months ended November 30, 2016. The change between other expense and other income was primarily due to losses or gains realized in connection with the fluctuation in the value of the dollar compared to foreign currencies during the referenced periods.

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    INCOME TAX EXPENSE. Income tax expenses were $10,000 and $34,000 for the six months ended November 30, 2017 and 2016, respectively.

LIQUIDITY AND CAPITAL RESOURCES

    Net cash used in operating activities was $2.2 million and $1.4 million for the six months ended November 30, 2017 and 2016, respectively. For the six months ended November 30, 2017, net cash used in operating activities was primarily the result of net income of $70,000, as adjusted to exclude the effect of non-cash charge of stock-based compensation expense of $0.6 million and depreciation and amortization expense of $0.2 million. Net cash used in operations was also impacted by an increase in inventories of $1.2 million, an increase in prepaid expenses and other current assets of $1.1 million, a decrease in accounts payable of $1.0 million, and a decrease in customer deposits and deferred revenue of $0.2 million, partially offset by a decrease in accounts receivable of $0.6 million. The increase in inventories is to support future shipments for customer orders. The increase in prepaid expenses and other current assets was primarily due to down payments to certain vendors. The decrease in accounts payable was primarily due to timing of vendor payments. The decrease in customer deposits and deferred revenue was primarily due to the shipments against customer orders with down payments. The decrease in accounts receivable was due to improvements in customer payment terms. For the six months ended November 30, 2016, net cash used in operating activities was primarily the result of net loss of $2.2 million, as adjusted to exclude the effect of non-cash charge of stock-based compensation expense of $0.5 million. Net cash used in operations was also impacted by an increase in accounts receivable of $1.0 million and a decrease in customer deposits and deferred revenue of $0.7 million, partially offset by a decrease in inventories of $1.3 million and an increase in accounts payable of $0.7 million. The increase in accounts receivable was primarily due to large shipments toward the end of the quarter ended November 30, 2016. The decrease in customer deposits and deferred revenue was primarily due to shipments to customers with down payments. The decrease in inventories is primarily due to the sales of systems on-hand at the beginning of the period. The increase in accounts payable was primarily due to inventory and capital equipment purchases.

    Net cash used in investing activities was $6.3 million and $88,000 for the six months ended November 30, 2017 and 2016, respectively. During the six months ended November 30, 2017, net cash used in investing activities was due to the purchase of available for sale securities, which did not affect our liquidity, and the purchases of property and equipment. During the six months ended November 30, 2016, net cash used in investing activities was primarily due to the purchases of property and equipment.

    Financing activities provided cash of $0.6 million and $5.8 million for the six months ended November 30, 2017 and 2016, respectively. Net cash provided by financing activities during the six months ended November 30, 2017 was due to $0.6 million in proceeds from the issuance of common stock under employee plans. Net cash provided by financing activities during the six months ended November 30, 2016 was due to the net proceeds of $5.3 million from the sale of our common stock in a private placement transaction with certain institutional and accredited investors that closed on September 28, 2016 and $0.5 million in proceeds from the issuance of common stock under employee plans.

    The effect of fluctuation in exchange rates used cash of $7,000 for the six months ended November 30, 2017 and $43,000 for the six months ended November 30, 2016. The change in cash used was due to the fluctuation in the value of the dollar compared to foreign currencies.

    As of November 30, 2017 and May 31, 2017, the Company had working capital of $23.2 million and $21.5 million, respectively. Working capital consists of cash and cash equivalents, short-term investments, accounts receivable, inventory and other current assets, less current liabilities.

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    We lease our manufacturing and office space under operating leases. We entered into a non-cancelable operating lease agreement for our United States manufacturing and office facilities, which was renewed in November 2014 and expires in June 2018. Under the lease agreement, we are responsible for payments of utilities, taxes and insurance.

    From time to time, we evaluate potential acquisitions of businesses, products or technologies that complement our business. If consummated, any such transactions may use a portion of our working capital or require the issuance of equity. We have no present understandings, commitments or agreements with respect to any material acquisitions.

    We anticipate that the existing cash balance together with income from operations, collections of existing accounts receivable, revenue from our existing backlog of products, the sale of inventory on hand, and deposits and down payments against significant orders will be adequate to meet our liquidity requirements for the next 12 months.

OFF-BALANCE SHEET ARRANGEMENTS

    We have not entered into any off-balance sheet financing arrangements and have not established any variable interest entities.

OVERVIEW OF CONTRACTUAL OBLIGATIONS

    There have been no material changes in the composition, magnitude or other key characteristics of our contractual obligations or other commitments as disclosed in our Annual Report on Form 10-K for the year ended May 31, 2017.

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS

    We had no holdings of derivative financial or commodity instruments as of November 30, 2017 or May 31, 2017.

    We are exposed to financial market risks, including changes in interest rates and foreign currency exchange rates. We only invest our short-term excess cash in government-backed securities with maturities of 18 months or less. We do not use any financial instruments for speculative or trading purposes. Fluctuations in interest rates would not have a material effect on our financial position, results of operations or cash flows.

    A majority of our revenue and capital spending is transacted in U.S. Dollars. We, however, enter into transactions in other currencies, primarily Euros and Japanese Yen. Since the price is determined at the time a purchase order is accepted, we are exposed to the risks of fluctuations in the foreign currency-U.S. Dollar exchange rates during the lengthy period from purchase order to ultimate payment. This exchange rate risk is partially offset to the extent that our subsidiaries incur expenses payable in their local currency. To date, we have not invested in instruments designed to hedge currency risks. In addition, our subsidiaries typically carry debt or other obligations due us that may be denominated in either their local currency or U.S. Dollars. Since our subsidiaries’ financial statements are based in their local currency and our condensed consolidated financial statements are based in U.S. Dollars, we and our subsidiaries recognize foreign exchange gains or losses in any period in which the value of the local currency rises or falls in relation to the U.S. Dollar. A 10% decrease in the value of the subsidiaries’ local currency as compared with the U.S. Dollar would not be expected to result in a significant change to our net income or loss. There have been no material changes in our risk exposure since the end of the last fiscal year, nor are any material changes to our risk exposure anticipated.

25

Item 4. CONTROLS AND PROCEDURES

    EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES. Our management evaluated, with the participation of our Chief Executive Officer and our Chief Financial Officer, the effectiveness of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on this evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that our disclosure controls and procedures are effective to ensure that information we are required to disclose in reports that we file or submit under the Securities and Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms, and that such information is accumulated and communicated to management as appropriate to allow for timely decisions regarding required disclosure.

    CHANGES IN INTERNAL CONTROLS OVER FINANCIAL REPORTING. There was no change in our internal control over financial reporting, as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, that occurred during the period covered by this Quarterly Report on Form 10-Q that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

INHERENT LIMITATIONS OF INTERNAL CONTROLS. Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that our disclosure controls and procedures or our internal controls will prevent all error and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within us have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of a simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. The design of any system of controls 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 our stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

26

PART II - OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

    None.

Item 1A. RISK FACTORS

    Please refer to the description of the risk factors associated with our business previously disclosed in Part I, Item 1A - "Risk Factors" of our Annual Report on Form 10-K for the year ended May 31, 2017 filed with the Securities and Exchange Commission on August 29, 2017. There have been no material changes from the risk factors previously described under Item 1A of our Annual Report on Form 10-K for the fiscal year ended May 31, 2017.

Item 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

    None.

Item 3. DEFAULTS UPON SENIOR SECURITIES

    None.

Item 4. MINE SAFETY DISCLOSURES

    Not Applicable

Item 5. OTHER INFORMATION

    None.

Item 6. EXHIBITS

    The Exhibits listed on the accompanying "Index to Exhibits" are filed as part of, or incorporated by reference into, this report.

27

SIGNATURES

     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.

	Aehr Test Systems (Registrant)
Date: January 12, 2018	By:	/s/ GAYN ERICKSON
		Gayn Erickson
		President and Chief Executive Officer

Date: January 12, 2018	By:	/s/ KENNETH B. SPINK
		Kenneth B. Spink
		Vice President of Finance and Chief Financial Officer

28

AEHR TEST SYSTEMS

INDEX TO EXHIBITS

Exhibit No.	Description
3.1(1)	Amended and Restated Bylaws of Registrant.
31.1	Certification of Chief Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) promulgated under the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) promulgated under the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.
32.1	Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.*
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

(1)Incorporated by reference to Exhibit No. 3.1 previously filed with the Company’s Current Report on Form 8-K filed October 31, 2017 (File No. 000-22893).

*This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filings 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 in any filings.

 29

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302(a) OF THE

SARBANES-OXLEY ACT

I, Gayn Erickson, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Aehr Test Systems;

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

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

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

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

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

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

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

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

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

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

Date: January 12, 2018

/s/ GAYN ERICKSON

Gayn Erickson 

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 302(a) OF THE

SARBANES-OXLEY ACT

I, Kenneth B. Spink, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Aehr Test Systems;

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

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

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

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

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

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

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

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

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

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

Date: January 12, 2018

/s/ KENNETH B. SPINK

Kenneth B. Spink 

Vice President of Finance and Chief Financial Officer

EX-32

                                                         Exhibit 32

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

    I, Gayn Erickson, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Aehr Test Systems on Form 10-Q for the period ended November 30, 2017 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of Aehr Test Systems.

Date: January 12, 2018

/s/ GAYN ERICKSON

Gayn Erickson 

President and Chief Executive Officer

    I, Kenneth B. Spink, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Aehr Test Systems on Form 10-Q for the period ended November 30, 2017 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of Aehr Test Systems.

Date: January 12, 2018

/s/ KENNETH B. SPINK

Kenneth B. Spink 

Vice President of Finance and Chief Financial Officer

XML

Document and Entity Information - shares	6 Months Ended
	Nov. 30, 2017	Dec. 29, 2017
Document And Entity Information
Entity Registrant Name	AEHR TEST SYSTEMS
Entity Central Index Key	0001040470
Document Type	10-Q
Document Period End Date	Nov. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--05-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		21,802,037
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2018

XML

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Nov. 30, 2017	May 31, 2017	[1]
ASSETS
Cash and cash equivalents	$ 9,959	$ 17,803
Short-term investments	5,969	0
Accounts receivable, net	3,490	4,010
Inventories	8,225	6,604
Prepaid expenses and other current assets	2,098	961
Total current assets	29,741	29,378
Property and equipment, net	1,166	1,419
Other assets	94	95
Total assets	31,001	30,892
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	1,789	2,808
Accrued expenses	1,607	1,609
Customer deposits and deferred revenue, short-term	3,142	3,467
Total current liabilities	6,538	7,884
Long-term debt	6,110	6,110
Deferred revenue, long-term	251	104
Total liabilities	12,899	14,098
Aehr Test Systems shareholders' equity:
Common stock, $0.01 par value: Authorized: 75,000 shares; Issued and outstanding: 21,797 shares and 21,340 shares at November 30, 2017 and May 31, 2017, respectively	218	213
Additional paid-in capital	82,304	81,128
Accumulated other comprehensive income	2,306	2,249
Accumulated deficit	(66,707)	(66,777)
Total Aehr Test Systems shareholders' equity	18,121	16,813
Noncontrolling interest	(19)	(19)
Total shareholders' equity	18,102	16,794
Total liabilities and shareholders' equity	$ 31,001	$ 30,892

[1] The condensed consolidated balance sheet at May 31, 2017 has been derived from the audited consolidated financial statements at that date.

XML

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Nov. 30, 2017	May 31, 2017
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized (in thousands)	75,000	75,000
Common stock, shares issued (in thousands)	21,797	21,340
Common stock, shares outstanding (in thousands)	21,797	21,340

XML

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Income Statement [Abstract]
Net sales	$ 7,923	$ 4,216	$ 14,893	$ 9,534
Cost of sales	4,792	2,753	8,844	5,865
Gross profit	3,131	1,463	6,049	3,669
Operating expenses:
Selling, general and administrative	1,854	1,707	3,645	3,423
Research and development	1,090	1,040	2,045	2,100
Total operating expenses	2,944	2,747	5,690	5,523
Income (loss) from operations	187	(1,284)	359	(1,854)
Interest expense, net	(105)	(181)	(212)	(359)
Other (expense) income, net	(7)	43	(67)	40
Income (loss) before income tax expense	75	(1,422)	80	(2,173)
Income tax expense	(15)	(30)	(10)	(34)
Net income (loss)	60	(1,452)	70	(2,207)
Less: Net income attributable to the noncontrolling interest	0	0	0	0
Net income (loss) attributable to Aehr Test Systems common shareholders	$ 60	$ (1,452)	$ 70	$ (2,207)
Net income (loss) per share basic	$ 0	$ (0.09)	$ 0	$ (0.15)
Net income (loss) per share diluted	$ 0	$ (0.09)	$ 0	$ (0.15)
Shares used in per share calculations: basic (in thousands)	21,645	16,029	21,531	14,673
Shares used in per share calculations: diluted (in thousands)	22,883	16,029	22,937	14,673

XML

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 60	$ (1,452)	$ 70	$ (2,207)
Other comprehensive income (loss), net of tax: Net change in unrealized loss on investments	(3)	0	(3)	0
Net change in cumulative translation adjustments	1	(55)	60	(48)
Total comprehensive income (loss)	58	(1,507)	127	(2,255)
Less: Comprehensive income attributable to the noncontrolling interest	0	2	0	1
Comprehensive income (loss), attributable to Aehr Test Systems common shareholders	$ 58	$ (1,509)	$ 127	$ (2,256)

XML

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Nov. 30, 2017		Nov. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ 70		$ (2,207)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Stock-based compensation expense	580		534
(Recovery of) provision for doubtful accounts	(14)		12
Amortization of debt issuance costs	0		89
Depreciation and amortization	190		129
Changes in operating assets and liabilities:
Accounts receivable	592		(972)
Inventories	(1,249)		1,335
Prepaid expenses and other assets	(1,135)		(138)
Accounts payable	(1,005)		721
Accrued expenses	5		(201)
Customer deposits and deferred revenue	(178)		(739)
Income taxes payable	(9)		21
Net cash used in operating activities	(2,153)		(1,416)
Cash flows from investing activities:
Purchase of investments	(5,972)		0
Purchases of property and equipment	(313)		(88)
Net cash used in investing activities	(6,285)		(88)
Cash flows from financing activities:
Proceeds from issuance of common stock under private placement, net of issuance costs	0		5,299
Proceeds from issuance of common stock under employee plans, net of taxes paid related to share settlement of equity awards	601		463
Net cash provided by financing activities	601		5,762
Effect of exchange rates on cash and cash equivalents	(7)		(43)
Net (decrease) increase in cash and cash equivalents	(7,844)		4,215
Cash and cash equivalents, beginning of period	17,803	[1]	939
Cash and cash equivalents, end of period	9,959		5,154
Supplemental disclosure of non-cash flow information:
Fair value of common stock issued to settle accounts payable	0		323
Transfer of property and equipment to inventories	$ 372		$ 372

[1] The condensed consolidated balance sheet at May 31, 2017 has been derived from the audited consolidated financial statements at that date.

XML

1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCCOUNTING POLICIES

6 Months Ended

Nov. 30, 2017

Disclosure Text Block [Abstract]

1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCCOUNTING POLICIES

1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

    The accompanying financial information has been prepared by Aehr Test Systems, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission, or SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (GAAP) have been condensed or omitted pursuant to such rules and regulations.

    In the opinion of management, the unaudited condensed consolidated financial statements for the interim periods presented have been prepared on a basis consistent with the May 31, 2017 audited consolidated financial statements and reflect all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the condensed consolidated financial position and results of operations as of and for such periods indicated. These unaudited condensed consolidated financial statements and notes thereto should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended May 31, 2017. Results for the interim periods presented herein are not necessarily indicative of results which may be reported for any other interim period or for the entire fiscal year.

    PRINCIPLES OF CONSOLIDATION. The condensed consolidated financial statements include the accounts of Aehr Test Systems and its subsidiaries (collectively, the "Company"). All significant intercompany balances have been eliminated in consolidation. For the Company’s majority owned subsidiary, Aehr Test Systems Japan K.K., the noncontrolling interest of the portion the Company does not own was reflected on the Condensed Consolidated Balance Sheets in Shareholders’ Equity and in the Condensed Consolidated Statements of Operations.

    ACCOUNTING ESTIMATES. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used to account for sales and revenue allowances, the allowance for doubtful accounts, inventory valuations, income taxes, stock-based compensation expenses, and product warranties, among others. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable under the circumstances. Actual results could differ materially from those estimates.

    REVENUE RECOGNITION. The Company recognizes revenue upon the shipment of products or the performance of services when: (1) persuasive evidence of the arrangement exists; (2) goods or services have been delivered; (3) the price is fixed or determinable; and (4) collectibility is reasonably assured. When a sales agreement involves multiple deliverables, such as extended support provisions, training to be supplied after delivery of the systems, and test programs specific to customers’ routine applications, the multiple deliverables are evaluated to determine the unit of accounting. Judgment is required to properly identify the accounting units of multiple element transactions and the manner in which revenue is allocated among the accounting units. Judgments made, or changes to judgments made, may significantly affect the timing or amount of revenue recognition.

    Revenue related to the multiple elements is allocated to each unit of accounting using the relative selling price hierarchy. Consistent with accounting guidance, the selling price is based upon vendor specific objective evidence (VSOE). If VSOE is not available, third party evidence (TPE) is used to establish the selling price. In the absence of VSOE or TPE, estimated selling price is used.

    During the first quarter of fiscal 2013, the Company entered into an agreement with a customer to develop a next generation system, and the Company shipped the first system in July 2016. The project identifies multiple milestones with values assigned to each. The consideration earned upon achieving the milestone is required to meet the following conditions prior to recognition: (i) the value is commensurate with the vendor’s performance to meet the milestone, (ii) it relates solely to past performance, (iii) and it is reasonable relative to all of the deliverables and payment terms within the arrangement. Revenue is recognized for the milestone upon acceptance by the customer.

    The Company recognizes revenue in certain circumstances before physical delivery has occurred. In these arrangements, among other things, risk of ownership has passed to the customer, the customer has made a written fixed commitment to purchase the products, the customer has requested the products be held for future delivery as scheduled and designated by them, and no additional performance obligations exist by the Company. For these transactions, the products are segregated from inventory and normal billing and credit terms granted.

    Sales tax collected from customers is not included in net sales but rather recorded as a liability due to the respective taxing authorities. Provisions for the estimated future cost of warranty and installation are recorded at the time the products are shipped.

    Royalty-based revenue related to licensing income from performance test boards and burn-in boards is recognized upon the earlier of the receipt by the Company of the licensee’s report related to its usage of the licensed intellectual property or upon payment by the licensee.

    The Company’s terms of sales with distributors are generally FOB shipping point with payment due within 60 days. All products go through in-house testing and verification of specifications before shipment. Apart from warranty reserves, credits issued have not been material as a percentage of net sales. The Company’s distributors do not generally carry inventories of the Company’s products. Instead, the distributors place orders with the Company at or about the time they receive orders from their customers. The Company’s shipment terms to our distributors do not provide for credits or rights of return. Because the Company’s distributors do not generally carry inventories of our products, they do not have rights to price protection or to return products. At the time the Company ships products to the distributors, the price is fixed. Subsequent to the issuance of the invoice, there are no discounts or special terms. The Company does not give the buyer the right to return the product or to receive future price concessions. The Company’s arrangements do not include vendor consideration.

    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES. The Company’s significant accounting policies are disclosed in the Company’s Annual Report on Form 10-K for the year ended May 31, 2017. There have been no significant changes in our significant accounting policies during the six months ended November 30, 2017.

XML

2. STOCK-BASED COMPENSATION

6 Months Ended

Nov. 30, 2017

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

2. STOCK-BASED COMPENSATION

2. STOCK-BASED COMPENSATION

    Stock-based compensation expense consists of expenses for stock options, restricted stock units, or RSUs, and employee stock purchase plan, or ESPP, purchase rights. Stock-based compensation cost for stock options and ESPP purchase rights are measured at each grant date, based on the fair value of the award using the Black-Scholes option valuation model, and is recognized as expense over the employee’s requisite service period. This model was developed for use in estimating the value of publicly traded options that have no vesting restrictions and are fully transferable. The Company’s employee stock options have characteristics significantly different from those of publicly traded options. For RSUs, stock-based compensation cost is based on the fair value of the Company’s common stock at the grant date. All of the Company’s stock-based compensation is accounted for as an equity instrument. See Notes 11 and 12 in the Company’s Annual Report on Form 10-K for fiscal 2017 filed on August 29, 2017 for further information regarding the 2016 Equity Incentive Plan and the Amended and Restated 2006 ESPP.

  The following table summarizes the stock-based compensation expense related to the Company’s stock-based incentive plans for the three and six months ended November 30, 2017 and 2016 (in thousands):

	Three Months Ended				Six Months Ended
	November 30,				November 30,
	2017		2016		2017		2016
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Cost of sales	$	57	$	23	$	79	$	47
Selling, general and administrative		218		141		368		388
Research and development		89		51		133		99
Total stock-based compensation	$	364	$	215	$	580	$	534

    As of November 30, 2017 and 2016, there were no stock-based compensation costs capitalized as part of inventory.

    During the three months ended November 30, 2017 and 2016, the Company recorded stock-based compensation related to stock options and RSUs of $207,000 and $185,000, respectively. During the six months ended November 30, 2017 and 2016, the Company recorded stock-based compensation related to stock options and RSUs of $408,000 and $464,000, respectively.

    As of November 30, 2017, the total compensation cost related to unvested stock-based awards under the Company’s 2016 Equity Incentive Plans, but not yet recognized, was approximately $1,316,000, which is net of estimated forfeitures of $3,000. This cost will be amortized on a straight-line basis over a weighted average period of approximately 2.5 years.

    During the three months ended November 30, 2017 and 2016, the Company recorded stock-based compensation related to the ESPP of $157,000 and $30,000, respectively. During the six months ended November 30, 2017 and 2016, the Company recorded stock-based compensation related to the ESPP of $172,000 and $70,000, respectively. The increase in the three and six months ended November 30, 2017 is primarily due to employees increasing their ESPP elections during the current ESPP purchase period.

    As of November 30, 2017, the total compensation cost related to purchase rights under the ESPP but not yet recognized was approximately $49,000. This cost will be amortized on a straight-line basis over a weighted average period of approximately 0.3 years.

Valuation Assumptions

    Valuation and Amortization Method. The Company estimates the fair value of stock options granted using the Black-Scholes option valuation model and a single option award approach. The fair value under the single option approach is amortized on a straight-line basis over the requisite service periods of the awards, which is generally the vesting period.

    Expected Term. The Company’s expected term represents the period that the Company’s stock-based awards are expected to be outstanding and was determined based on historical experience, giving consideration to the contractual terms of the stock-based awards, vesting schedules and expectations of future employee behavior as evidenced by changes to the terms of its stock-based awards.

    Volatility. Volatility is a measure of the amounts by which a financial variable such as stock price has fluctuated (historical volatility) or is expected to fluctuate (expected volatility) during a period. The Company uses the historical volatility for the past four or five years, which matches the expected term of most of the option grants, to estimate expected volatility. Volatility for each of the ESPP’s four time periods of six months, twelve months, eighteen months, and twenty-four months is calculated separately and included in the overall stock-based compensation cost recorded.

    Risk-Free Interest Rate. The Company bases the risk-free interest rate used in the Black-Scholes option valuation model on the implied yield in effect at the time of option grant on U.S. Treasury zero-coupon issues with a remaining term equivalent to the expected term of the stock awards including the ESPP.

    Fair Value. The fair value of the Company’s stock options granted to employees for the three and six months ended November 30, 2017 and 2016 were estimated using the following weighted average assumptions in the Black-Scholes option valuation model:

	Three Months Ended						Six Months Ended
	November 30,						November 30,
	2017			2016			2017			2016
Expected term (in years)		4			4			4			4
Volatility		0.74			0.81			0.77			0.81
Risk-free interest rate		1.92	%		1.10	%		1.77	%		1.02	%
Weighted average grant date fair value	$	1.93		$	1.66		$	2.22		$	1.09

    There were no ESPP purchase rights granted for the three and six months ended November 30, 2017 and 2016.

    The following tables summarize the Company’s stock option and RSU transactions during the three and six months ended November 30, 2017 (in thousands):

	Available
	Shares
Balance, May 31, 2017		2,169
Options granted		(224	)
RSUs granted		(64	)
Shares cancelled		--
Balance, August 31, 2017		1,881
Options granted		(41	)
RSUs granted		--
Shares cancelled		--
Balance, November 30, 2017		1,840

    The following table summarizes the stock option transactions during the three and six months ended November 30, 2017 (in thousands, except per share data):

	Outstanding Options
				Weighted
	Number			Average		Aggregate
	of			Exercise		Intrinsic
	Shares			Price		Value
Balances, May 31, 2017		3,074		$	1.73	$	8,763
Options granted		224		$	3.93
Options cancelled		--		$	--
Options exercised		(189	)	$	1.23
Balances, August 31, 2017		3,109		$	1.92	$	4,612
Options granted		41		$	3.46
Options cancelled		--		$	--
Options exercised		(132	)	$	1.46
Balances, November 30, 2017		3,018		$	1.96	$	2,230
Options fully vested and expected to vest at November 30, 2017		2,984		$	1.95	$	2,220

    The options outstanding and exercisable at November 30, 2017 were in the following exercise price ranges (in thousands, except per share data):

		Options Outstanding						Options Exercisable
		at November 30, 2017						at November 30, 2017
Range of Exercise Prices		Number Outstanding Shares		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Exercisable Shares		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Aggregate Intrinsic Value
$	0.59-$0.97		424		1.31	$	0.68		424		1.31	$	0.68
$	1.09-$1.36		645		2.11	$	1.27		645		2.10	$	1.27
$	1.68-$2.06		487		4.73	$	1.74		276		4.03	$	1.79
$	2.10-$2.81		1,197		4.01	$	2.45		953		3.99	$	2.47
$	3.46-$3.93		265		6.66	$	3.88		22		6.66	$	3.88
$	0.59-$3.93		3,018		3.57	$	1.96		2,320		3.00	$	1.74	$ 1,985

    The total intrinsic value of options exercised during the three and six months ended November 30, 2017 was $269,000 and $745,000, respectively. The total intrinsic value of options exercised during the three and six months ended November 30, 2016 was $359,000 and $411,000, respectively. The weighted average remaining contractual life of the options exercisable and expected to be exercisable at November 30, 2017 was 3.56 years.

    There were no RSUs granted to employees for the three months ended November 30, 2017 or 2016. During the six months ended November 30, 2017, RSUs for 64,000 shares were granted. The market value on the date of the grant of these RSUs was $3.93 per share. During the six months ended November 30, 2016, RSUs for 138,000 shares were granted. The market value on the date of the grant of these RSUs was $1.68 per share. 4,000 and 7,000 RSUs became fully vested during the three and six months ended November 30, 2017, respectively. 89,000 RSUs were unvested at November 30, 2017. The intrinsic value of the unvested RSUs at November 30, 2017 was $227,000.

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3. EARNINGS PER SHARE

6 Months Ended

Nov. 30, 2017

Earnings Per Share [Abstract]

3. EARNINGS PER SHARE

3. EARNINGS PER SHARE

    Basic earnings per share is determined using the weighted average number of common shares outstanding during the period. Diluted earnings per share is determined using the weighted average number of common shares and potential common shares (representing the dilutive effect of stock options, RSUs and ESPP shares) outstanding during the period using the treasury stock method.

    The following table presents the computation of basic and diluted net income (loss) per share attributable to the Company’s common shareholders (in thousands, except per share data):

	Three Months Ended				Six Months Ended
	November 30,				November 30,
	2017		2016		2017		2016
Numerator: Net income (loss)	$	60	$	(1,452)	$	70	$	(2,207)
Denominator for basic net income (loss) per share:
Weighted average shares outstanding		21,645		16,029		21,531		14,673
Shares used in basic net income (loss) per share calculation		21,645		16,029		21,531		14,673
Effect of dilutive securities		1,238		--		1,406		--
Denominator for diluted net income (loss) per share		22,883		16,029		22,937		14,673
Basic net income (loss) per share	$	0.00	$	(0.09)	$	0.00	$	(0.15)
Diluted net income (loss) per share	$	0.00	$	(0.09)	$	0.00	$	(0.15)

    For the purpose of computing diluted earnings per share, the weighted average number of potential common shares does not include stock options with an exercise price greater than the average fair value of the Company’s common stock for the period, as the effect would be anti-dilutive. Stock options to purchase 263,000 shares of common stock were outstanding as of November 30, 2017 but were not included in the computation of diluted net income per share, because the inclusion of such shares would be anti-dilutive. In the three and six months ended November 30, 2016, potential common shares have not been included in the calculation of diluted net loss per share as the effect would be anti-dilutive. As such, the numerator and the denominator used in computing both basic and diluted net loss per share for this period are the same. Stock options to purchase 3,229,000 shares of common stock, RSUs for 72,000 shares and ESPP rights to purchase 246,000 ESPP shares were outstanding as of November 30, 2016, but were not included in the computation of diluted net loss per share, because the inclusion of such shares would be anti-dilutive. The 2,657,000 shares convertible under the convertible notes outstanding at November 30, 2017 and 2016 were not included in the computation of diluted net income (loss) per share, because the inclusion of such shares would be anti-dilutive.

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4. CASH, CASH EQUIVALENTS AND INVESTMENTS

6 Months Ended

Nov. 30, 2017

Cash and Cash Equivalents [Abstract]

4. CASH, CASH EQUIVALENTS AND INVESTMENTS

4. CASH, CASH EQUIVALENTS AND INVESTMENTS

    The following table summarizes the Company’s cash, cash equivalents and investments by security type at November 30, 2017 (in thousands):

	Cost		Gross Unrealized Loss		Estimated Fair Value
Cash	$	1,802	$	--	$	1,802
Cash equivalents:
Money market funds		4,164		--		4,164
U.S. Treasury securities		3,993		--		3,993
Total Cash equivalents		8,157		--		8,157
Total Cash and Cash equivalents	$	9,959	$	--	$	9,959
Short-term investments:
U.S. Treasury securities	$	5,972	$	3	$	5,969
Total Cash, Cash equivalents and Investments	$	15,931	$	3	$	15,928

    Unrealized gains and temporary losses on investments classified as available-for-sale are included within accumulated other comprehensive income (“AOCI”), net of any related tax effect. Upon realization, those amounts are reclassified from AOCI to results of operations.

    The unrealized loss as of November 30, 2017 is not considered other-than-temporary. 

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5. FAIR VALUE OF FINANCIAL INSTRUMENTS

6 Months Ended

Nov. 30, 2017

Fair Value Disclosures [Abstract]

5. FAIR VALUE OF FINANCIAL INSTRUMENTS

5. FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company’s financial instruments are measured at fair value consistent with authoritative guidance. This authoritative guidance defines fair value, establishes a framework for using fair value to measure assets and liabilities, and disclosures required related to fair value measurements.

    The guidance establishes a fair value hierarchy based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity’s pricing based upon their own market assumptions. The fair value hierarchy consists of the following three levels:

Level 1 - instrument valuations are obtained from real-time quotes for transactions in active exchange markets involving identical assets.

Level 2 - instrument valuations are obtained from readily-available pricing sources for comparable instruments.

Level 3 - instrument valuations are obtained without observable market values and require a high level of judgment to determine the fair value.

    The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of November 30, 2017 (in thousands):

	Balance as of
	November 30, 2017		Level 1		Level 2		Level 3
Money market funds	$	4,164	$	4,164	$	--	$	--
U.S. Treasury securities		9,962		9,962		--		--
Certificate of deposit		50		--		50		--
Assets	$	14,176	$	14,126	$	50	$	--

    The U.S. Treasury securities have maturities of three and six months

    The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of May 31, 2017 (in thousands):

	Balance as of
	May 31, 2017		Level 1		Level 2		Level 3
Money market funds	$	15,516	$	15,516	$	--	$	--
Certificate of deposit		50		--		50		--
Assets	$	15,566	$	15,516	$	50	$	--

    There were no financial liabilities measured at fair value as of November 30, 2017 and May 31, 2017.

    There were no transfers between Level 1 and Level 2 fair value measurements during the three and six months ended November 30, 2017.

    The carrying amounts of financial instruments including cash, cash equivalents, receivables, accounts payable and certain other accrued liabilities, approximate fair value due to their short maturities. Based on the borrowing rates currently available to the Company for loans with similar terms, the carrying value of the debt approximates the fair value.

    The Company has, at times, invested in debt and equity of private companies, and may do so again in the future, as part of its business strategy.

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6. ACCOUNTS RECEIVABLE, NET

6 Months Ended

Nov. 30, 2017

Accounts Receivable, Net, Current [Abstract]

6. ACCOUNTS RECEIVABLE, NET

6. ACCOUNTS RECEIVABLE, NET

    Accounts receivable represent customer trade receivables and is presented net of allowances for doubtful accounts of $47,000 at November 30, 2017 and $61,000 at May 31, 2017. Accounts receivable are derived from the sale of products throughout the world to semiconductor manufacturers, semiconductor contract assemblers, electronics manufacturers and burn-in and test service companies. The Company’s allowance for doubtful accounts is based upon historical experience and review of trade receivables by aging category to identify specific customers with known disputes or collection issues. Uncollectible receivables are recorded as bad debt expense when all efforts to collect have been exhausted and recoveries are recognized when they are received.

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7. INVENTORIES

6 Months Ended

Nov. 30, 2017

Inventory Disclosure [Abstract]

7. INVENTORIES

7. INVENTORIES

    Inventories are comprised of the following (in thousands):

	November 30,		May 31,
	2017		2017
Raw materials and sub-assemblies	$	5,020	$	4,268
Work in process		2,970		2,059
Finished goods		235		277
	$	8,225	$	6,604

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8. SEGMENT INFORMATION

6 Months Ended

Nov. 30, 2017

Segment Reporting [Abstract]

8. SEGMENT INFORMATION

8. SEGMENT INFORMATION

    The Company operates in one reportable segment: the design, manufacture and marketing of advanced test and burn-in products to the semiconductor manufacturing industry.

    The following presents information about the Company’s operations in different geographic areas. Net sales are based upon ship-to location (in thousands).

	United
	States		Asia		Europe		Total
Three months ended November 30, 2017:
Net sales	$	1,964	$	5,909	$	50	$	7,923
Property and equipment, net		1,116		39		11		1,166
Six months ended November 30, 2017:
Net sales	$	3,254	$	11,569	$	70	$	14,893
Property and equipment, net		1,116		39		11		1,166
Three months ended November 30, 2016:
Net sales	$	1,709	$	2,256	$	251	$	4,216
Property and equipment, net		740		39		14		793
Six months ended November 30, 2016:
Net sales	$	4,873	$	4,166	$	495	$	9,534
Property and equipment, net		740		39		14		793

    The Company’s Japanese and German subsidiaries primarily comprise the foreign operations. Substantially all of the sales of the subsidiaries are made to unaffiliated Japanese or European customers. Net sales from outside the United States include those of Aehr Test Systems Japan K.K. and Aehr Test Systems GmbH.

    Sales to the Company’s five largest customers accounted for approximately 94% and 96% of its net sales in the three and six months ended November 30, 2017, respectively. Two customers accounted for approximately 43% and 34% of the Company’s net sales in the three months ended November 30, 2017. Two customers accounted for approximately 43%, and 39% of the Company’s net sales in the six months ended November 30, 2017. Sales to the Company’s five largest customers accounted for approximately 96% and 95% of its net sales in the three and six months ended November 30, 2016, respectively. Two customers accounted for approximately 60% and 22% of the Company’s net sales in the three months ended November 30, 2016. Three customers accounted for approximately 50%, 19% and 16% of the Company’s net sales in the six months ended November 30, 2016. No other customers represented more than 10% of the Company’s net sales in the six months ended November 30, 2017 and 2016.

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9. PRODUCT WARRANTIES

6 Months Ended

Nov. 30, 2017

Product Warranties Disclosures [Abstract]

9. PRODUCT WARRANTIES

9. PRODUCT WARRANTIES

    The Company provides for the estimated cost of product warranties at the time revenues are recognized on the products shipped. While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company’s warranty obligation is affected by product failure rates, material usage and service delivery costs incurred in correcting a product failure. Should actual product failure rates, material usage or service delivery costs differ from the Company’s estimates, revisions to the estimated warranty liability would be required.

    The standard warranty period is one year for systems and ninety days for parts and service.

    The following is a summary of changes in the Company's liability for product warranties during the three and six months ended November 30, 2017 and 2016 (in thousands):

	Three Months Ended						Six Months Ended
	November 30,						November 30,
	2017			2016			2017			2016
Balance at the beginning of the period	$	119		$	90		$	113		$	155
Accruals for warranties issued during the period		152			11			246			11
Accruals and adjustments (change in estimates) related to pre-existing warranties during the period		--			--			--			(54	)
Settlement made during the period (in cash or in kind)		(138	)		(29	)		(226	)		(40	)
Balance at the end of the period	$	133		$	72		$	133		$	72

    The accrued warranty balance is included in accrued expenses on the accompanying condensed consolidated balance sheets.

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10. ACCUMULATED OTHER COMPREHENSIVE INCOME

6 Months Ended

Nov. 30, 2017

Equity [Abstract]

10. ACCUMULATED OTHER COMPREHENSIVE INCOME

10. ACCUMULATED OTHER COMPREHENSIVE INCOME

    Changes in the components of AOCI, net of tax, were as follows (in thousands):

	Cumulative Translation Adjustments		Unrealized Loss on Investments, Net			Total
Balance at May 31, 2017	$	2,249	$	--		$	2,249
Other comprehensive income (loss) before  reclassifications		60		(3	)		57
Amounts reclassified out of AOCI		--		--			--
Other comprehensive income (loss), net of tax		60		(3	)		57
Balance at November 30, 2017	$	2,309	$	(3	)	$	2,306

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11. INCOME TAXES

6 Months Ended

Nov. 30, 2017

Income Tax Disclosure [Abstract]

11. INCOME TAXES

11. INCOME TAXES

    Income taxes have been provided using the liability method whereby deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and net operating loss and tax credit carryforwards measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse or the carryforwards are utilized. Valuation allowances are established when it is determined that it is more likely than not that such assets will not be realized.

    Since fiscal 2009, a full valuation allowance was established against all deferred tax assets as management determined that it is more likely than not that certain deferred tax assets will not be realized.

    The Company accounts for uncertain tax positions consistent with authoritative guidance. The guidance prescribes a “more likely than not” recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The Company does not expect any material change in its unrecognized tax benefits over the next twelve months. The Company recognizes interest and penalties related to unrecognized tax benefits as a component of income taxes.

    Although the Company files U.S. federal, various state, and foreign tax returns, the Company’s only major tax jurisdictions are the United States, California, Germany and Japan. Tax years 1997 - 2016 remain subject to examination by the appropriate governmental agencies due to tax loss carryovers from those years.

    On December 22, 2017, the “Tax Cuts and Jobs Act” was signed into law, significantly impacting several sections of the Internal Revenue Code. The Company is currently analyzing the impact of these changes and therefore an estimate of the impact to income taxes is not yet available. 

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12. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM

6 Months Ended

Nov. 30, 2017

Customer Deposits And Deferred Revenue Short-term

12. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM

12. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM

    Customer deposits and deferred revenue, short-term (in thousands):

	November 30,		May 31,
	2017		2017
Customer deposits	$	2,755	$	3,264
Deferred revenue		387		203
	$	3,142	$	3,467

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13. LONG-TERM DEBT

6 Months Ended

Nov. 30, 2017

Long-term Debt, Unclassified [Abstract]

13. LONG-TERM DEBT

13. LONG-TERM DEBT

    On April 10, 2015, the Company entered into a Convertible Note Purchase and Credit Facility Agreement (the “Purchase Agreement”) with QVT Fund LP and Quintessence Fund L.P. (the “Purchasers”) providing for (a) the Company’s sale to the Purchasers of $4,110,000 in aggregate principal amount of 9.0% Convertible Secured Notes due 2017 (the “Convertible Notes”) and (b) a secured revolving loan facility (the “Credit Facility”) in an aggregate principal amount of up to $2,000,000. On August 22, 2016 the Purchase Agreement was amended to extend the maturity date of the Convertible Notes to April 10, 2019, decrease the conversion price from $2.65 per share to $2.30 per share, decrease the forced conversion price from $7.50 per share to $6.51 per share, and allow for additional equity awards.

    The Convertible Notes bear interest at an annual rate of 9.0% and will mature on April 10, 2019 unless repurchased or converted prior to that date. Interest is payable quarterly on March 1, June 1, September 1 and December 1 of each year. Debt issuance costs of $356,000, which were accreted over the term of the original loan using the effective interest rate method, were offset against the loan balance.

    The conversion price for the Convertible Notes is $2.30 per share and is subject to adjustment upon the occurrence of certain specified events. Holders may convert all or any part of the principal amount of their Convertible Notes in integrals of $10,000 at any time prior to the maturity date. Upon conversion, the Company will deliver shares of its common stock to the holder of Convertible Notes electing such conversion. The Company may not redeem the Convertible Notes prior to maturity.

    The maximum amount of $2,000,000 drawn against the Credit Facility has been converted to Convertible Notes, and at November 30, 2017 there was no remaining balance available to be drawn on the Credit Facility.

    The Company’s obligations under the Purchase Agreement are secured by substantially all of the assets of the Company.

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14. RECENT ACCOUNTING PRONOUNCEMENTS

6 Months Ended

Nov. 30, 2017

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

14. RECENT ACCOUNTING PRONOUNCEMENTS

14. RECENT ACCOUNTING PRONOUNCEMENTS

    In May 2014, as part of its ongoing efforts to assist in the convergence of GAAP and International Financial Reporting Standards (“IFRS”), the Financial Accounting Standards Board (“FASB”) issued an accounting standard update related to revenue from contracts with customers. This standard sets forth a new five-step revenue recognition model which replaces the prior revenue recognition guidance in its entirety and is intended to eliminate numerous industry-specific pieces of revenue recognition guidance that have historically existed in GAAP. The underlying principle of the new standard is that a business or other organization will recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects what it expects in exchange for the goods or services. The standard also requires more detailed disclosures and provides additional guidance for transactions that were not addressed completely in the prior accounting guidance. The standard provides alternative methods of initial adoption and will become effective for the Company beginning in the first quarter of fiscal 2019. The FASB has issued several updates to the standard which i) defer the original effective date from January 1, 2017 to January 1, 2018, while allowing for early adoption as of January 1, 2017. ii) clarify the application of the principal versus agent guidance. and iii) clarify the guidance on inconsequential and perfunctory promises and licensing. In May 2016, the FASB issued an update to address certain narrow aspects of the guidance including collectibility criterion, collection of sales taxes from customers, noncash consideration, contract modifications and completed contracts. This issuance does not change the core principle of the guidance in the initial topic issued in May 2014. In December 2016, the FASB issued updated guidance regarding revenue from contracts with customers. Some topics that could impact the Company include corrections and improvements around the following: contract costs impairment testing, disclosure of remaining performance obligations and prior period obligations, contract modifications, and contract asset versus receivable. The Company is currently evaluating the impact of adopting this new guidance on its consolidated financial statements.

    In July 2015, the FASB issued an accounting standard update that requires management to measure inventory at the lower of cost or net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The Company adopted this new standard in fiscal year 2018. The adoption of this guidance does not have a significant impact on the Company’s consolidated financial statements.

    In November 2015, the FASB issued an accounting standard update related to deferred tax assets and liabilities. This standard simplifies the presentation of deferred income taxes to be classified as noncurrent in the consolidated balance sheet. The Company adopted this new standard in fiscal year 2018. The adoption of this guidance does not have a significant impact on the Company’s consolidated financial statements.

    In January 2016, the FASB issued an accounting standard update related to recognition and measurement of financial assets and financial liabilities. This standard changes accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. In addition, it clarifies guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. This standard is effective for us in fiscal year 2020. Early adoption is permitted. The Company is currently evaluating the impact of this new guidance on its consolidated financial statements.

    In February 2016, the FASB issued authoritative guidance related to leases. This guidance requires management to present all leases greater than one year on the balance sheet as a liability to make payments and an asset as the right to use the underlying asset for the lease term. This new standard will be effective for us in fiscal year 2020, with early adoption permitted. The Company is currently evaluating the impact of adopting this new guidance on its consolidated financial statements.

    In March 2016, the FASB released an accounting standard update that simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, forfeitures, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The Company adopted this new standard in fiscal year 2018. The adoption of this guidance does not have a significant impact on the Company’s consolidated financial statements.

    In June 2016, the FASB issued an accounting standard update that requires measurement and recognition of expected credit losses for financial assets held based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. The accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2021 on a modified retrospective basis, and early adoption in fiscal 2020 is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements.

    In August 2016, the FASB issued authoritative guidance related to the classification of certain cash receipts and cash payments on the statement of cash flows. The accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2019 on a retrospective basis, and early adoption is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated statements of cash flows.

    In October 2016, the FASB issued an accounting standard update that requires recognition of the income tax consequences of intra-entity transfers of assets (other than inventory) at the transaction date. The accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2019 on a modified retrospective basis, and early adoption is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements.

    In November 2016, the FASB issued authoritative guidance related to statements of cash flows. This guidance clarifies that amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of period total amounts shown on the statement of cash flows. The accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2019 on a retrospective basis, and early adoption is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements.

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1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCCOUNTING POLICIES (Policies)

6 Months Ended

Nov. 30, 2017

Accounting Policies [Abstract]

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCCOUNTING POLICIES

1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

    The accompanying financial information has been prepared by Aehr Test Systems, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission, or SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (GAAP) have been condensed or omitted pursuant to such rules and regulations.

    In the opinion of management, the unaudited condensed consolidated financial statements for the interim periods presented have been prepared on a basis consistent with the May 31, 2017 audited consolidated financial statements and reflect all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the condensed consolidated financial position and results of operations as of and for such periods indicated. These unaudited condensed consolidated financial statements and notes thereto should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended May 31, 2017. Results for the interim periods presented herein are not necessarily indicative of results which may be reported for any other interim period or for the entire fiscal year.

PRINCIPLES OF CONSOLIDATION

    PRINCIPLES OF CONSOLIDATION. The condensed consolidated financial statements include the accounts of Aehr Test Systems and its subsidiaries (collectively, the "Company"). All significant intercompany balances have been eliminated in consolidation. For the Company’s majority owned subsidiary, Aehr Test Systems Japan K.K., the noncontrolling interest of the portion the Company does not own was reflected on the Condensed Consolidated Balance Sheets in Shareholders’ Equity and in the Condensed Consolidated Statements of Operations.

ACCOUNTING ESTIMATES

ACCOUNTING ESTIMATES. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used to account for sales and revenue allowances, the allowance for doubtful accounts, inventory valuations, income taxes, stock-based compensation expenses, and product warranties, among others. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable under the circumstances. Actual results could differ materially from those estimates.

REVENUE RECOGNITION

    REVENUE RECOGNITION. The Company recognizes revenue upon the shipment of products or the performance of services when: (1) persuasive evidence of the arrangement exists; (2) goods or services have been delivered; (3) the price is fixed or determinable; and (4) collectibility is reasonably assured. When a sales agreement involves multiple deliverables, such as extended support provisions, training to be supplied after delivery of the systems, and test programs specific to customers’ routine applications, the multiple deliverables are evaluated to determine the unit of accounting. Judgment is required to properly identify the accounting units of multiple element transactions and the manner in which revenue is allocated among the accounting units. Judgments made, or changes to judgments made, may significantly affect the timing or amount of revenue recognition.

    Revenue related to the multiple elements is allocated to each unit of accounting using the relative selling price hierarchy. Consistent with accounting guidance, the selling price is based upon vendor specific objective evidence (VSOE). If VSOE is not available, third party evidence (TPE) is used to establish the selling price. In the absence of VSOE or TPE, estimated selling price is used.

    During the first quarter of fiscal 2013, the Company entered into an agreement with a customer to develop a next generation system, and the Company shipped the first system in July 2016. The project identifies multiple milestones with values assigned to each. The consideration earned upon achieving the milestone is required to meet the following conditions prior to recognition: (i) the value is commensurate with the vendor’s performance to meet the milestone, (ii) it relates solely to past performance, (iii) and it is reasonable relative to all of the deliverables and payment terms within the arrangement. Revenue is recognized for the milestone upon acceptance by the customer.

    The Company recognizes revenue in certain circumstances before physical delivery has occurred. In these arrangements, among other things, risk of ownership has passed to the customer, the customer has made a written fixed commitment to purchase the products, the customer has requested the products be held for future delivery as scheduled and designated by them, and no additional performance obligations exist by the Company. For these transactions, the products are segregated from inventory and normal billing and credit terms granted.

    Sales tax collected from customers is not included in net sales but rather recorded as a liability due to the respective taxing authorities. Provisions for the estimated future cost of warranty and installation are recorded at the time the products are shipped.

    Royalty-based revenue related to licensing income from performance test boards and burn-in boards is recognized upon the earlier of the receipt by the Company of the licensee’s report related to its usage of the licensed intellectual property or upon payment by the licensee.

    The Company’s terms of sales with distributors are generally FOB shipping point with payment due within 60 days. All products go through in-house testing and verification of specifications before shipment. Apart from warranty reserves, credits issued have not been material as a percentage of net sales. The Company’s distributors do not generally carry inventories of the Company’s products. Instead, the distributors place orders with the Company at or about the time they receive orders from their customers. The Company’s shipment terms to our distributors do not provide for credits or rights of return. Because the Company’s distributors do not generally carry inventories of our products, they do not have rights to price protection or to return products. At the time the Company ships products to the distributors, the price is fixed. Subsequent to the issuance of the invoice, there are no discounts or special terms. The Company does not give the buyer the right to return the product or to receive future price concessions. The Company’s arrangements do not include vendor consideration.

SIGNIFICANT ACCOUNTING POLICIES

     SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES. The Company’s significant accounting policies are disclosed in the Company’s Annual Report on Form 10-K for the year ended May 31, 2017. There have been no significant changes in our significant accounting policies during the six months ended November 30, 2017.

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2. STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Nov. 30, 2017

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

Compensation costs related to the Company's stock-based compensation

  The following table summarizes the stock-based compensation expense related to the Company’s stock-based incentive plans for the three and six months ended November 30, 2017 and 2016 (in thousands):

	Three Months Ended				Six Months Ended
	November 30,				November 30,
	2017		2016		2017		2016
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Cost of sales	$	57	$	23	$	79	$	47
Selling, general and administrative		218		141		368		388
Research and development		89		51		133		99
Total stock-based compensation	$	364	$	215	$	580	$	534

Assumptions for options valuation model

    Fair Value. The fair value of the Company’s stock options granted to employees for the three and six months ended November 30, 2017 and 2016 were estimated using the following weighted average assumptions in the Black-Scholes option valuation model:

	Three Months Ended						Six Months Ended
	November 30,						November 30,
	2017			2016			2017			2016
Expected term (in years)		4			4			4			4
Volatility		0.74			0.81			0.77			0.81
Risk-free interest rate		1.92	%		1.10	%		1.77	%		1.02	%
Weighted average grant date fair value	$	1.93		$	1.66		$	2.22		$	1.09

Stock option and RSU transactions

    The following tables summarize the Company’s stock option and RSU

transactions during the three and six months ended November 30, 2017 (in thousands):

	Available
	Shares
Balance, May 31, 2017		2,169
Options granted		(224	)
RSUs granted		(64	)
Shares cancelled		--
Balance, August 31, 2017		1,881
Options granted		(41	)
RSUs granted		--
Shares cancelled		--
Balance, November 30, 2017		1,840

Stock option transactions

   The following table summarizes the stock option transactions during the three and six months ended November 30, 2017 (in thousands, except per share data):

	Outstanding Options
				Weighted
	Number			Average		Aggregate
	of			Exercise		Intrinsic
	Shares			Price		Value
Balances, May 31, 2017		3,074		$	1.73	$	8,763
Options granted		224		$	3.93
Options cancelled		--		$	--
Options exercised		(189	)	$	1.23
Balances, August 31, 2017		3,109		$	1.92	$	4,612
Options granted		41		$	3.46
Options cancelled		--		$	--
Options exercised		(132	)	$	1.46
Balances, November 30, 2017		3,018		$	1.96	$	2,230
Options fully vested and expected to vest at November 30, 2017		2,984		$	1.95	$	2,220

Options outstanding

 The options outstanding and exercisable at November 30, 2017 were in the following exercise price ranges (in thousands, except per share data):

		Options Outstanding						Options Exercisable
		at November 30, 2017						at November 30, 2017
Range of Exercise Prices		Number Outstanding Shares		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Exercisable Shares		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Aggregate Intrinsic Value
$	0.59-$0.97		424		1.31	$	0.68		424		1.31	$	0.68
$	1.09-$1.36		645		2.11	$	1.27		645		2.10	$	1.27
$	1.68-$2.06		487		4.73	$	1.74		276		4.03	$	1.79
$	2.10-$2.81		1,197		4.01	$	2.45		953		3.99	$	2.47
$	3.46-$3.93		265		6.66	$	3.88		22		6.66	$	3.88
$	0.59-$3.93		3,018		3.57	$	1.96		2,320		3.00	$	1.74	$ 1,985

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3. EARNINGS PER SHARE (Tables)

6 Months Ended

Nov. 30, 2017

Earnings Per Share [Abstract]

Earnings per share

    The following table presents the computation of basic and diluted net income (loss) per share attributable to the Company’s common shareholders (in thousands, except per share data):

	Three Months Ended				Six Months Ended
	November 30,				November 30,
	2017		2016		2017		2016
Numerator: Net income (loss)	$	60	$	(1,452)	$	70	$	(2,207)
Denominator for basic net income (loss) per share:
Weighted average shares outstanding		21,645		16,029		21,531		14,673
Shares used in basic net income (loss) per share calculation		21,645		16,029		21,531		14,673
Effect of dilutive securities		1,238		--		1,406		--
Denominator for diluted net income (loss) per share		22,883		16,029		22,937		14,673
Basic net income (loss) per share	$	0.00	$	(0.09)	$	0.00	$	(0.15)
Diluted net income (loss) per share	$	0.00	$	(0.09)	$	0.00	$	(0.15)

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4. CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)

6 Months Ended

Nov. 30, 2017

Cash and Cash Equivalents [Abstract]

Cash, cash equivalents and investments by security type

 The following table summarizes the Company’s cash, cash equivalents and investments by security type at November 30, 2017 (in thousands):

	Cost		Gross Unrealized Loss		Estimated Fair Value
Cash	$	1,802	$	--	$	1,802
Cash equivalents:
Money market funds		4,164		--		4,164
U.S. Treasury securities		3,993		--		3,993
Total Cash equivalents		8,157		--		8,157
Total Cash and Cash equivalents	$	9,959	$	--	$	9,959
Short-term investments:
U.S. Treasury securities	$	5,972	$	3	$	5,969
Total Cash, Cash equivalents and Investments	$	15,931	$	3	$	15,928

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5. FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

6 Months Ended

Nov. 30, 2017

Fair Value Disclosures [Abstract]

Fair value by hierarchy

  The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of November 30, 2017 (in thousands):

	Balance as of
	November 30, 2017		Level 1		Level 2		Level 3
Money market funds	$	4,164	$	4,164	$	--	$	--
U.S. Treasury securities		9,962		9,962		--		--
Certificate of deposit		50		--		50		--
Assets	$	14,176	$	14,126	$	50	$	--

     The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of May 31, 2017 (in thousands):

	Balance as of
	May 31, 2017		Level 1		Level 2		Level 3
Money market funds	$	15,516	$	15,516	$	--	$	--
Certificate of deposit		50		--		50		--
Assets	$	15,566	$	15,516	$	50	$	--

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7. INVENTORIES (Tables)

6 Months Ended

Nov. 30, 2017

Inventory Disclosure [Abstract]

Inventories

    Inventories are comprised of the following (in thousands):

	November 30,		May 31,
	2017		2017
Raw materials and sub-assemblies	$	5,020	$	4,268
Work in process		2,970		2,059
Finished goods		235		277
	$	8,225	$	6,604

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8. SEGMENT INFORMATION (Tables)

6 Months Ended

Nov. 30, 2017

Segment Reporting [Abstract]

Company's operations in different geographic areas

    The following presents information about the Company’s operations in different geographic areas. Net sales are based upon ship-to location (in thousands).

	United
	States		Asia		Europe		Total
Three months ended November 30, 2017:
Net sales	$	1,964	$	5,909	$	50	$	7,923
Property and equipment, net		1,116		39		11		1,166
Six months ended November 30, 2017:
Net sales	$	3,254	$	11,569	$	70	$	14,893
Property and equipment, net		1,116		39		11		1,166
Three months ended November 30, 2016:
Net sales	$	1,709	$	2,256	$	251	$	4,216
Property and equipment, net		740		39		14		793
Six months ended November 30, 2016:
Net sales	$	4,873	$	4,166	$	495	$	9,534
Property and equipment, net		740		39		14		793

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9. PRODUCT WARRANTIES (Tables)

6 Months Ended

Nov. 30, 2017

Product Warranties Disclosures [Abstract]

Liability for product warranties

    The following is a summary of changes in the Company's liability for product warranties during the three and six months ended November 30, 2017 and 2016 (in thousands):

	Three Months Ended						Six Months Ended
	November 30,						November 30,
	2017			2016			2017			2016
Balance at the beginning of the period	$	119		$	90		$	113		$	155
Accruals for warranties issued during the period		152			11			246			11
Accruals and adjustments (change in estimates) related to pre-existing warranties during the period		--			--			--			(54	)
Settlement made during the period (in cash or in kind)		(138	)		(29	)		(226	)		(40	)
Balance at the end of the period	$	133		$	72		$	133		$	72

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10. ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)

6 Months Ended

Nov. 30, 2017

Equity [Abstract]

Changes in the components of AOCI

    Changes in the components of AOCI, net of tax, were as follows (in thousands):

	Cumulative Translation Adjustments		Unrealized Loss on Investments, Net			Total
Balance at May 31, 2017	$	2,249	$	--		$	2,249
Other comprehensive income (loss) before  reclassifications		60		(3	)		57
Amounts reclassified out of AOCI		--		--			--
Other comprehensive income (loss), net of tax		60		(3	)		57
Balance at November 30, 2017	$	2,309	$	(3	)	$	2,306

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12. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM (Tables)

6 Months Ended

Nov. 30, 2017

Customer Deposits And Deferred Revenue Short-term Tables

Customer deposits and deferred revenue

    Customer deposits and deferred revenue, short-term (in thousands):

	November 30,		May 31,
	2017		2017
Customer deposits	$	2,755	$	3,264
Deferred revenue		387		203
	$	3,142	$	3,467

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2. STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Stock-based compensation in the form of employee stock options, RSUs and ESPP shares included in:
Total stock-based compensation	$ 364	$ 215	$ 580	$ 534
Cost of Sales
Stock-based compensation in the form of employee stock options, RSUs and ESPP shares included in:
Total stock-based compensation	57	23	79	47
Selling, General and Administrative
Stock-based compensation in the form of employee stock options, RSUs and ESPP shares included in:
Total stock-based compensation	218	141	368	388
Research and Development
Stock-based compensation in the form of employee stock options, RSUs and ESPP shares included in:
Total stock-based compensation	$ 89	$ 51	$ 133	$ 99

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2. STOCK-BASED COMPENSATION (Details 1) - Stock Options - $ / shares	3 Months Ended		6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Expected term (in years)	4 years	4 years	4 years	4 years
Volatility	74.00%	81.00%	77.00%	81.00%
Risk-free interest rate	1.92%	1.10%	1.77%	1.02%
Weighted average grant date fair value	$ 1.93	$ 1.66	$ 2.22	$ 1.09

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2. STOCK-BASED COMPENSATION (Details 2) - Stock Option and RSU Transactions - shares	3 Months Ended			6 Months Ended
	Nov. 30, 2017	Aug. 31, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Available Shares, Beginning (in thousands)	1,881	2,169		2,169
Options granted (in thousands)	(41)	(224)
RSUs granted (in thousands)	0	(64)	0	(64)	(138)
Shares cancelled (in thousands)	0	0
Available Shares, Ending (in thousands)	1,840	1,881		1,840

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2. STOCK-BASED COMPENSATION (Details 3) - Outstanding Options Stock Option Transactions - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Nov. 30, 2017	Aug. 31, 2017
Options Outstanding, Beginning (in thousands)	3,109	3,074
Options granted (in thousands)	41	224
Options cancelled (in thousands)	0	0
Options exercised (in thousand)	(132)	(189)
Options Outstanding, Ending (in thousands)	3,018	3,109
Weighted Average Exercise Price Outstanding, Beginning	$ 1.92	$ 1.73
Weighted Average Exercise Price Granted	3.46	3.93
Weighted Average Exercise Price Cancelled	0.00	0.00
Weighted Average Exercise Price Exercised	1.46	1.23
Weighted Average Exercise Price Outstanding, Ending	$ 1.96	$ 1.92
Aggregate Intrinsic Value, beginning balance	$ 4,612	$ 8,763
Aggregate Intrinsic Value, ending balance	$ 2,230	$ 4,612
Options fully vested and expected to vest, ending (in thousands)	2,984
Weighted Average Exercise Price for Options fully vested and expected to vest, ending	$ 1.95
Aggregate Intrinsic Value for Options fully vested and expected to vest, ending	$ 2,220

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2. STOCK-BASED COMPENSATION (Details 4) $ / shares in Units, $ in Thousands	6 Months Ended
	Nov. 30, 2017 USD ($) $ / shares shares
$0.59-$0.97
Options Outstanding, Ending (in thousands) | shares	424
Weighted Average Remaining Contractual Life (Years) Options Outstanding	1 year 3 months 22 days
Weighted Average Exercise Price Outstanding, Ending | $ / shares	$ 0.68
Options exercisable shares, ending (in thousands) | shares	424
Weighted Average Remaining Contractual Life (Years) Options Exercisable	1 year 3 months 22 days
Weighted Average Exercise Price for Options exercisable, ending | $ / shares	$ 0.68
$1.09-$1.36
Options Outstanding, Ending (in thousands) | shares	645
Weighted Average Remaining Contractual Life (Years) Options Outstanding	2 years 1 month 10 days
Weighted Average Exercise Price Outstanding, Ending | $ / shares	$ 1.27
Options exercisable shares, ending (in thousands) | shares	645
Weighted Average Remaining Contractual Life (Years) Options Exercisable	2 years 1 month 6 days
Weighted Average Exercise Price for Options exercisable, ending | $ / shares	$ 1.27
$1.68-$2.06
Options Outstanding, Ending (in thousands) | shares	487
Weighted Average Remaining Contractual Life (Years) Options Outstanding	4 years 8 months 23 days
Weighted Average Exercise Price Outstanding, Ending | $ / shares	$ 1.74
Options exercisable shares, ending (in thousands) | shares	276
Weighted Average Remaining Contractual Life (Years) Options Exercisable	4 years 11 days
Weighted Average Exercise Price for Options exercisable, ending | $ / shares	$ 1.79
$2.10-$2.81
Options Outstanding, Ending (in thousands) | shares	1,197
Weighted Average Remaining Contractual Life (Years) Options Outstanding	4 years 4 days
Weighted Average Exercise Price Outstanding, Ending | $ / shares	$ 2.45
Options exercisable shares, ending (in thousands) | shares	953
Weighted Average Remaining Contractual Life (Years) Options Exercisable	3 years 11 months 26 days
Weighted Average Exercise Price for Options exercisable, ending | $ / shares	$ 2.47
$3.46-$3.93
Options Outstanding, Ending (in thousands) | shares	265
Weighted Average Remaining Contractual Life (Years) Options Outstanding	6 years 7 months 28 days
Weighted Average Exercise Price Outstanding, Ending | $ / shares	$ 3.88
Options exercisable shares, ending (in thousands) | shares	22
Weighted Average Remaining Contractual Life (Years) Options Exercisable	6 years 7 months 28 days
Weighted Average Exercise Price for Options exercisable, ending | $ / shares	$ 3.88
$0.59-$3.93
Options Outstanding, Ending (in thousands) | shares	3,018
Weighted Average Remaining Contractual Life (Years) Options Outstanding	3 years 6 months 25 days
Weighted Average Exercise Price Outstanding, Ending | $ / shares	$ 1.96
Options exercisable shares, ending (in thousands) | shares	2,320
Weighted Average Remaining Contractual Life (Years) Options Exercisable	3 years
Weighted Average Exercise Price for Options exercisable, ending | $ / shares	$ 1.74
Aggregate Intrinsic Value for Options exercisable, ending | $	$ 1,985

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2. STOCK-BASED COMPENSATION (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Nov. 30, 2017	Aug. 31, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Stock-based compensation costs capitalized as part of inventory	$ 0		$ 0	$ 0	$ 0
Intrinsic value of options exercised	269		359	$ 745	411
Weighted average remaining contractual life of the options exercisable and expected to be exercisable				3 years 6 months 22 days
Stock Option and RSU Transactions
Stock-based compensation expense related to stock options and RSUs	$ 207		$ 185	$ 408	$ 464
Restricted Stock Units granted (in thousands)	0	64	0	64	138
Market value on the date of the grant				$ 3.93	$ 1.68
Restricted Stock Units vested (in thousands)	4			7
Restricted Stock Units unvested (in thousands)	89			89
Restricted Stock Units unvested intrinsic value	$ 227			$ 227
2006 and 2016 Equity Incentive Plans
Unrecognized stock-based compensation	1,316			1,316
Estimated forfeitures of unvested stock based awards, amount	3			$ 3
Weighted average period for recognition of costs				2 years 6 months
Employee Stock Purchase Plan
Weighted average period for recognition of costs				3 months 18 days
Stock-based compensation related to the ESPP	157		$ 30	$ 172	$ 70
Compensation cost related to purchase rights under the ESPP but not yet recognized	$ 49			$ 49
ESPP purchase right granted (in thousands)	0		0	0	0

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3. EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Earnings Per Share [Abstract]
Numerator: Net income (loss)	$ 60	$ (1,452)	$ 70	$ (2,207)
Denominator for basic net income (loss) per share: Weighted average shares outstanding (in thousands)	21,645	16,029	21,531	14,673
Shares used in basic net income (loss) per share calculation (in thousands)	21,645	16,029	21,531	14,673
Effect of dilutive securities (in thousands)	1,238	0	1,406	0
Denominator for diluted net income (loss) per share (in thousands)	22,883	16,029	22,937	14,673
Basic net income (loss) per share	$ 0	$ (0.09)	$ 0	$ (0.15)
Diluted net income (loss) per share	$ 0	$ (0.09)	$ 0	$ (0.15)

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3. EARNINGS PER SHARE (Details Narrative) - shares	6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016
Employee Stock Purchase Plan
Options not included in the computation of diluted net income (loss) per share (in thousands)		246
Convertible Notes
Options not included in the computation of diluted net income (loss) per share (in thousands)	2,657	2,657
Stock Options
Options not included in the computation of diluted net income (loss) per share (in thousands)	263	3,229
Restricted Stock Units
Options not included in the computation of diluted net income (loss) per share (in thousands)		72

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4. CASH, CASH EQUIVALENTS AND INVESTMENTS (Details) - USD ($) $ in Thousands	Nov. 30, 2017	May 31, 2017	[1]	Nov. 30, 2016	May 31, 2016
Cash, cost	$ 1,802
Cash, estimated fair value	1,802
Cash equivalents, cost	8,157
Cash equivalents, estimated fair value	8,157
Cash and cash equivalents, cost	9,959	$ 17,803		$ 5,154	$ 939
Cash and cash equivalents, estimated fair value	9,959	$ 17,803		$ 5,154	$ 939
Short-term investments, gross unrealized loss	3
Cash, cash equivalents, and investments, cost	15,931
Cash, cash equivalents, and investments, gross unrealized loss	3
Cash, cash equivalents, and investments, estimated fair value	15,928
Money Market Funds At Carrying Value
Cash equivalents, cost	4,164
Cash equivalents, estimated fair value	4,164
U.S. Treasury securities
Cash equivalents, cost	3,993
Cash equivalents, estimated fair value	3,993
Short-term investments, cost	5,972
Short-term investments, gross unrealized loss	3
Short-term investments, estimated fair value	5,969
Cash, cash equivalents, and investments, gross unrealized loss	$ 3

[1] The condensed consolidated balance sheet at May 31, 2017 has been derived from the audited consolidated financial statements at that date.

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5. FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands	Nov. 30, 2017	May 31, 2017
Money market funds	$ 4,164	$ 15,516
U.S. Treasury securities	9,962	0
Certificate of deposit	50	50
Assets	14,176	15,566
Level 1
Money market funds	4,164	15,516
U.S. Treasury securities	9,962	0
Certificate of deposit	0	0
Assets	14,126	15,516
Level 2
Money market funds	0	0
U.S. Treasury securities	0	0
Certificate of deposit	50	50
Assets	50	50
Level 3
Money market funds	0	0
U.S. Treasury securities	0	0
Certificate of deposit	0	0
Assets	$ 0	$ 0

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5. FAIR VALUE OF FINANCIAL INSTRUMENTS (Details Narrative) - USD ($) $ in Thousands	Nov. 30, 2017	May 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Transfers between Level 1 and Level 2 fair value measurements	$ 0	$ 0

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6. ACCOUNTS RECEIVABLE, NET (Details Narrative) - USD ($) $ in Thousands	Nov. 30, 2017	May 31, 2017
Accounts Receivable, Net, Current [Abstract]
Allowance for doubtful accounts customer trade receivables	$ 47	$ 61

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7. INVENTORIES (Details) - USD ($) $ in Thousands	Nov. 30, 2017	May 31, 2017
Inventory, Net [Abstract]
Raw materials and sub-assemblies	$ 5,020	$ 4,268
Work in process	2,970	2,059
Finished goods	235	277
Inventory	$ 8,225	$ 6,604	[1]

[1] The condensed consolidated balance sheet at May 31, 2017 has been derived from the audited consolidated financial statements at that date.

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8. SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Net sales	$ 7,923	$ 4,216	$ 14,893	$ 9,534
Property and equipment, net	1,166	793	1,166	793
US
Net sales	1,964	1,709	3,254	4,873
Property and equipment, net	1,116	740	1,116	740
Asia
Net sales	5,909	2,256	11,569	4,166
Property and equipment, net	39	39	39	39
Europe
Net sales	50	251	70	495
Property and equipment, net	$ 11	$ 14	$ 11	$ 14

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8. SEGMENT INFORMATION (Details Narrative)	3 Months Ended		6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Five Largest Customers
Customers accounted for 10% or more of total revenues	94.00%	96.00%	96.00%	95.00%
Customer A
Customers accounted for 10% or more of total revenues	43.00%	60.00%	43.00%	50.00%
Customer B
Customers accounted for 10% or more of total revenues	34.00%	22.00%	39.00%	19.00%
Customer C
Customers accounted for 10% or more of total revenues				16.00%

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9. PRODUCT WARRANTIES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at the beginning of the period	$ 119	$ 90	$ 113	$ 155
Accruals for warranties issued during the period	152	11	246	11
Accruals and adjustments (change in estimates) related to pre-existing warranties during the period	0	0	0	(54)
Settlement made during the period (in cash or in kind)	(138)	(29)	(226)	(40)
Balance at the end of the period	$ 133	$ 72	$ 133	$ 72

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9. PRODUCT WARRANTIES (Details Narrative)

6 Months Ended

Nov. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Standard warranty period

The standard warranty period is one year for systems and ninety days for parts and service.

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10. ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) $ in Thousands	6 Months Ended
	Nov. 30, 2017 USD ($)
Accumulated other comprehensive income, beginning	$ 2,249	[1]
Other comprehensive income (loss) before reclassifications	57
Other comprehensive income (loss), net of tax	57
Accumulated other comprehensive income, ending	2,306
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated other comprehensive income, beginning	2,249
Other comprehensive income (loss) before reclassifications	60
Other comprehensive income (loss), net of tax	60
Accumulated other comprehensive income, ending	2,309
Unrealized loss on Investments, Net
Accumulated other comprehensive income, beginning	0
Other comprehensive income (loss) before reclassifications	(3)
Other comprehensive income (loss), net of tax	(3)
Accumulated other comprehensive income, ending	$ (3)

[1] The condensed consolidated balance sheet at May 31, 2017 has been derived from the audited consolidated financial statements at that date.

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12. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM (Details) - USD ($) $ in Thousands	Nov. 30, 2017	May 31, 2017
Customer Deposits And Deferred Revenue Short-term Details
Customer deposits	$ 2,755	$ 3,264
Deferred revenue	387	203
Total	$ 3,142	$ 3,467

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13. LONG-TERM DEBT (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands

6 Months Ended

Nov. 30, 2017

Nov. 30, 2016

Apr. 10, 2015

Debt Disclosure [Abstract]

Convertible debt, principal amount

$ 6,110

$ 4,110

Convertible note, interest rate

9.00%

Convertible note, maturity

Apr. 10, 2019

Convertible note, interest payment

Interest is payable quarterly on March 1, June 1, September 1 and December 1 of each year.

Debt issuance costs

$ 356

Amortization of debt issuance costs

$ 0

$ 89

Conversion price for the Convertible Notes

$ 2.30

Convertible Notes, Terms of Conversion Feature

    The conversion price for the Convertible Notes is $2.30 per share and is subject to adjustment upon the occurrence of certain specified events. Holders may convert all or any part of the principal amount of their Convertible Notes in integrals of $10,000 at any time prior to the maturity date. Upon conversion, the Company will deliver shares of its common stock to the holder of Convertible Notes electing such conversion. The Company may not redeem the Convertible Notes prior to maturity.

Line of credit, maximum borrowing capacity

$ 2,000