10-Q

  UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

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

For the quarterly period ended August 31, 2020

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 incorporation or organization)	(I.R.S. Employer Identification No.)

400 Kato Terrace Fremont, CA	94539
(Address of principal executive offices)	(Zip Code)

(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 that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).  Yes ☒ No ☐

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 ☒
	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 ☒

Securities registered pursuant to Section 12(b) of the Act:

	Trading
Title of each class	Symbol(s)	Name of each exchange on which registered
Common Stock Par value $0.01 per share	AEHR	The NASDAQ Capital Market

     Number of shares of the registrant’s common stock, $0.01 par value, outstanding as of September 30, 2020 was 23,310,312.

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AEHR TEST SYSTEMS

FORM 10-Q

FOR THE QUARTER ENDED AUGUST 31, 2020

INDEX

PART I.	FINANCIAL INFORMATION
ITEM 1.	Financial Statements (Unaudited)
	Condensed Consolidated Balance Sheets at August 31, 2020 and May 31, 2020	4
	Condensed Consolidated Statements of Operations for the Three Months Ended August 31, 2020 and 2019	5
	Condensed Consolidated Statements of Comprehensive Loss for the Three Months Ended August 31, 2020 and 2019	6
	Condensed Consolidated Statements of Shareholders’ Equity for the Three Months Ended August 31, 2020 and 2019	7
	Condensed Consolidated Statements of Cash Flows for the Three Months Ended August 31, 2020 and 2019	8
	Notes to Condensed Consolidated Financial Statements	9
ITEM 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	22
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risks	26
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	28
	SIGNATURES	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)

	August 31,	May 31,
	2020	2020
		(1)
ASSETS
Current assets:
Cash and cash equivalents	$6,313	$5,433
Accounts receivable, net	1,116	3,717
Inventories	8,102	7,989
Prepaid expenses and other current assets	439	512
Total current assets	15,970	17,651
Property and equipment, net	622	663
Operating lease right-of-use assets	1,952	2,107
Other assets	147	153
Total assets	$18,691	$20,574
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
Accounts payable	$809	$945
Accrued expenses	1,373	1,439
Operating lease liabilities, short-term	671	658
Customer deposits and deferred revenue, short-term	387	170
Current portion of long-term debt	933	653
Total current liabilities	4,173	3,865
Operating lease liabilities, long-term	1,432	1,605
Long-term debt, net of current portion	746	1,026
Deferred revenue, long-term	19	22
Total liabilities	6,370	6,518
Aehr Test Systems shareholders' equity:
Common stock, $0.01 par value:     Authorized: 75,000;     Issued and outstanding: 23,291 shares and 23,107 shares at August 31, 2020 and May 31, 2020, respectively	233	231
Additional paid-in capital	86,356	85,898
Accumulated other comprehensive (loss) income	(67)	2,234
Accumulated deficit	(74,201)	(74,286)
Total Aehr Test Systems shareholders' equity	12,321	14,077
Noncontrolling interest	-	(21)
Total shareholders' equity	12,321	14,056
Total liabilities and shareholders' equity	$18,691	$20,574

(1) The condensed consolidated balance sheet at May 31, 2020 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
	August 31,
	2020	2019
Net sales	$2,012	$5,533
Cost of sales	1,785	3,262
Gross profit	227	2,271
Operating expenses:
Selling, general and administrative	1,514	1,808
Research and development	900	892
Total operating expenses	2,414	2,700
Loss from operations	(2,187)	(429)
Interest (expense) income, net	(13)	12
Net gain from dissolution of Aehr Test Systems Japan	2,186	--
Other (expense) income, net	(94)	10
Loss before income tax benefit (expense)	(108)	(407)
Income tax benefit (expense)	215	(6)
Net income (loss)	107	(413)
Less: Net income attributable to the noncontrolling interest	--	--
Net income (loss) attributable to Aehr Test Systems common shareholders	$107	$(413)
Net income (loss) per share:
Basic and Diluted	$0.00	$(0.02)
Shares used in per share calculations:
Basic	23,248	22,708
Diluted	23,455	22,708

The accompanying notes are an integral part of these

condensed consolidated financial statements.

5

AEHR TEST SYSTEMS

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(in thousands, unaudited)

	Three Months Ended
	August 31,
	2020	2019
Net income (loss)	$107	$(413)
Other comprehensive loss, net of tax:
Net change in cumulative translation adjustment	99	(15)
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan	(2,401)	--
Total comprehensive loss	(2,195)	(428)
Less: Comprehensive income (loss) attributable to the noncontrolling interest	21	(1)
Comprehensive loss, attributable to Aehr Test Systems common shareholders	$(2,216)	$(427)

The accompanying notes are an integral part of these

condensed consolidated financial statements.

6

AEHR TEST SYSTEMS

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

(in thousands)

(unaudited)

	Common Stock		Additional Paid-in	Accumulated  Other Comprehensive	Accumulated	Total Aehr Test Systems Shareholders’	Noncontrolling	Total Shareholders'
Three Months Ended August 31, 2020	Shares	Amount	Capital	Income	Deficit	Equity	Interest	Equity
Balances, May 31, 2020	23,107	$231	$85,898	$2,234	$(74,286)	$14,077	$(21)	$14,056
Issuance of common stock under employee plans	184	2	188	--	--	190	--	190
Stock-based compensation	--	--	270	--	--	270	--	270
Net income	--	--	--	--	107	107	--	107
Foreign currency translation adjustment	--	--	--	100	--	100	(1)	99
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan	--	--	--	(2,401)	(22)	(2,423)	22	(2,401)
Balances, August 31, 2020	23,291	$233	$86,356	$(67)	$(74,201)	$12,321	--	$12,321

	Common Stock		Additional Paid-in	Accumulated Other Comprehensive	Accumulated	Total Aehr Test Systems Shareholders’	Noncontrolling	Total Shareholders'
Three Months Ended August 31, 2019	Shares	Amount	Capital	Income	Deficit	Equity	Interest	Equity
Balances, May 31, 2019	22,669	$227	$84,499	$2,230	$(71,484)	$15,472	$(19)	$15,453
Issuance of common stock under employee plans	52	--	62	--	--	62	--	62
Stock-based compensation	--	--	199	--	--	199	--	199
Net loss	--	--	--	--	(413)	(413)	--	(413)
Foreign currency translation adjustment	--	--	--	(14)	--	(14)	(1)	(15)
Balances, August 31, 2019	22,721	$227	$84,760	$2,216	$(71,897)	$15,306	$(20)	$15,286

The accompanying notes are an integral part of these

condensed consolidated financial statements.

7

AEHR TEST SYSTEMS

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

	Three Months Ended
	August 31,
	2020	2019
Cash flows from operating activities:
Net income (loss)	$107	$(413)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    Stock-based compensation expense	270	199
Depreciation and amortization	82	95
Net gain from dissolution of Aehr Test Systems Japan	(2,186)	--
Income tax benefit related to dissolution of Aehr Test Systems Japan	(215)	--
Changes in operating assets and liabilities:
Accounts receivable	2,642	1,584
Inventories	(112)	(156)
Prepaid expenses and other current assets	80	194
Accounts payable	(173)	(235)
Accrued expenses	(67)	(455)
Customer deposits and deferred revenue	214	(1,006)
Income taxes payable	1	3
Net cash provided by (used in) operating activities	643	(190)
Cash flows from investing activities:
Purchases of property and equipment	(47)	(50)
Net cash used in investing activities	(47)	(50)
Cash flows from financing activities:
Proceeds from issuance of common stock under employee plans, net of taxes paid related to share settlement of equity awards	190	62
Net cash provided by financing activities	190	62
Effect of exchange rates on cash, cash equivalents and restricted cash	94	16
Net increase (decrease) in cash, cash equivalents and restricted cash	880	(162)
Cash, cash equivalents and restricted cash, beginning of period	5,513	5,508
Cash, cash equivalents and restricted cash, end of period	$6,393	$5,346

The accompanying notes are an integral part of these

condensed consolidated financial statements.

8

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 (the “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, 2020 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, 2020. 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 Sharholders' 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.

    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, 2020.There have been no significant changes in the Company’s significant accounting policies during the three months ended August 31, 2020.

2. RECENT ACCOUNTING PRONOUNCEMENTS

Accounting Standards Not Yet Adopted

    Financial Instruments

    In June 2016, the FASB issued an accounting standard update (“ASU”) 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 collectability of the reported amount. Due to a subsequent ASU in November 2019, the accounting standard will be effective for the Company beginning in the first quarter of fiscal 2024 on a modified retrospective basis, and early adoption in fiscal 2021 is permitted. The Company does not expect a material impact of this accounting standard on its consolidated financial statements. 

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3. REVENUE

Revenue recognition

    The Company recognizes revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services by following a five-step process, (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price, and (5) recognize revenue when or as the Company satisfies a performance obligation, as further described below.

    Performance obligations include sales of systems, contactors, spare parts, and services, as well as installation and training services included in customer contracts.

    A contract’s transaction price is allocated to each distinct performance obligation. In determining the transaction price, the Company evaluates whether the price is subject to refund or adjustment to determine the net consideration to which the Company expects to be entitled. The Company generally does not grant return privileges, except for defective products during the warranty period.

    For contracts that contain multiple performance obligations, the Company allocates the transaction price to the performance obligations on a relative standalone selling price basis. Standalone selling prices are based on multiple factors including, but not limited to historical discounting trends for products and services and pricing practices in different geographies.

    Revenue for systems and spares is recognized at a point in time, which is generally upon shipment or delivery. Revenue from services is recognized over time as services are completed or ratably over the contractual period of generally one year or less.

    The Company has elected the practical expedient to not assess whether a contract has a significant financing component as the Company’s standard payment terms are less than one year.

Disaggregation of revenue

    The following tables show revenues by major product categories. Within each product category, contract terms, conditions and economic factors affecting the nature, amount, timing and uncertainty around revenue recognition and cash flow are substantially similar.

    The Company’s revenues by product category are as follows (in thousands):

10

	Three Months Ended
	August 31,
	2020	2019
Type of good / service:
Systems	$801	$2,934
Contactors	627	1,650
Services	584	949
	$2,012	$5,533
Product lines:
Wafer-level	$1,559	$4,826
Test During Burn-In	453	707
	$2,012	$5,533

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

	Three Months Ended
	August 31,
	2020	2019
Geographic region:
United States	$1,041	$5,057
Asia	969	338
Europe	2	138
	$2,012	$5,533

    With the exception of the amount of service contracts and extended warranties, the Company’s product category revenues are recognized at a point in time when control transfers to the customers. The following presents revenue based on timing of recognition (in thousands):

	Three Months Ended
	August 31,
	2020	2019
Timing of revenue recognition:
Products and services transferred at a point in time	$1,570	$4,859
Services transferred over time	442	674
	$2,012	$5,533

Contract balances

    A receivable is recognized in the period the Company delivers goods or provides services or when the Company’s right to consideration is unconditional. The Company usually does not record contract assets because the Company has an unconditional right to payment upon satisfaction of the performance obligation, and therefore, a receivable is more commonly recorded than a contract asset.

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    Contract liabilities include payments received in advance of performance under a contract and are satisfied as the associated revenue is recognized. Contract liabilities are reported on the Condensed Consolidated Balance Sheets at the end of each reporting period as a component of deferred revenue. Contract liabilities as of August 31, 2020 and May 31, 2020 were $406,000 and $192,000, respectively. During the three months ended August 31, 2020, the Company recognized $79,000 of revenues that were included in contract liabilities as of May 31, 2020.

Remaining performance obligations

    On August 31, 2020, the Company had $128,000 of remaining performance obligations, which were comprised of deferred service contracts and extended warranty contracts not yet delivered. The Company expects to recognize approximately 66% of its remaining performance obligations as revenue in fiscal 2021, and an additional 34% in fiscal 2022 and thereafter. The foregoing excludes the value of other remaining performance obligations as they have original durations of one year or less, and also excludes information about variable consideration allocated entirely to a wholly unsatisfied performance obligation.

Costs to obtain or fulfill a contract

    The Company generally expenses sales commissions when incurred as a component of selling, general and administrative expense as the amortization period is typically less than one year. Additionally, the majority of the Company’s cost of fulfillment as a manufacturer of products is classified as inventory and fixed assets, which are accounted for under the respective guidance for those asset types. Other costs of contract fulfillment are immaterial due to the nature of the Company’s products and their respective manufacturing process.

4. 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, restricted stock units (“RSUs”), and Amended and Restated 2006 Employee Stock Purchase Plan (“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 Aehr Test Systems common shareholders (in thousands, except per share data):

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	Three Months Ended
	August 31,
	2020	2019
Numerator: Net income (loss)	$107	$(413)
Denominator for basic net income (loss) per share:
Weighted average shares outstanding	23,248	22,708
Shares used in basic net income (loss) per share calculation	23,248	22,708
Effect of dilutive securities	207	--
Denominator for diluted net income (loss) per share	23,455	22,708
Basic net income (loss) per share	$0.00	$(0.02)
Diluted net income (loss) per share	$0.00	$(0.02)

    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 2,594,000 shares of common stock were outstanding as of August 31, 2020, 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 months ended August 31, 2019, potential common shares were not 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 these periods are the same. Stock options to purchase 3,434,000 shares of common stock, RSUs for 20,000 shares and ESPP rights to purchase 297,000 ESPP shares were outstanding as of August 31, 2019, but were not included in the computation of diluted net loss per share because the inclusion of such shares would be anti-dilutive.

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 August 31, 2020 (in thousands):

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	Balance as of
	August 31, 2020	Level 1	Level 2	Level 3
Money market funds	$80	$80	$--	$--
Assets	$80	$80	$--	$--

    The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of May 31, 2020 (in thousands):

	Balance as of May 31, 2020	Level 1	Level 2	Level 3
Money market funds	$80	$80	$--	$--
Assets	$80	$80	$--	$--

    Included in money market funds as of August 31, 2020 and May 31, 2020 is $80,000 restricted cash representing a security deposit for the Company’s United States manufacturing and office space lease which is included in other assets in the consolidated balance sheet.

    There were no financial liabilities measured at fair value as of August 31, 2020 and May 31, 2020.

    There were no transfers between Level 1 and Level 2 fair value measurements during the three months ended August 31, 2020.

    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.

6. ACCOUNTS RECEIVABLE, NET

Accounts receivable represent customer trade receivables. As of August 31, 2020 and May 31, 2020, there was no allowance for doubtful accounts. 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):

	August 31,	May 31,
	2020	2020
Raw materials and sub-assemblies	$5,571	$5,055
Work in process	2,529	2,917
Finished goods	2	17
	$8,102	$7,989

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8. 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 months ended August 31, 2020 and 2019 (in thousands):

	Three Months Ended
	August 31,
	2020	2019
Balance at the beginning of the period	$246	$154
Accruals for warranties issued during the period	79	62
Adjustments to previously existing warranty accruals	76	-
Consumption of reserves	(71)	(24)
Balance at the end of the period	$330	$192

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

9. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM

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

	August 31,	May 31,
	2020	2020
Customer deposits	$278	$--
Deferred revenue	109	170
	$387	$170

10. 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.

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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.

    On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was passed into law. The CARES Act includes several significant business tax provisions including modification to the taxable income limitation for utilization of net operating losses (“NOLs”) incurred in 2018, 2019 and 2020 and the ability to carry back NOLs from those years for a period of up to five years, an increase to the limitation on deductibility of certain business interest expense, bonus depreciation for purchases of qualified improvement property and special deductions on certain corporate charitable contributions. The Company is currently analyzing the impact of these changes and therefore an estimate of the impact to income taxes is not yet available.

    On June 29, 2020, the Assembly Bill 85 (AB 85) was signed into law as part of the California 2020 Budget Act, which temporarily suspends the use of California net operating losses and imposes a cap on the amount of business incentive tax credits that companies can utilize against their net income for tax years 2020, 2021, and 2022. The Company analyzed the provisions of AB 85 and determined there was no impact on its provision for income taxes for the current period and will continue to evaluate the impact, if any, AB 85 may have on the Company’s condensed consolidated financial statements and disclosures.

11. LEASES

    The Company has only operating leases for real estate including corporate offices, warehouse space and certain equipment. A lease with an initial term of 12 months or less is generally not recorded on the condensed consolidated balance sheet, unless the arrangement includes an option to purchase the underlying asset, or renew the arrangement that the Company is reasonably certain to exercise (short-term leases). The Company recognizes lease expense on a straight-line basis over the lease term for short-term leases that the Company does not record on its balance sheet. The Company’s operating leases have remaining lease terms of 1 month to 3 years.

    The Company determines whether an arrangement is or contains a lease based on the unique facts and circumstances present at the inception of the arrangement. Operating lease liabilities and their corresponding right-of-use assets are recorded based on the present value of lease payments over the expected lease term. The interest rate implicit in lease contracts is typically not readily determinable.

    As such, the Company utilizes the appropriate incremental borrowing rate, which is the rate incurred to borrow on a collateralized basis over a similar term at an amount equal to the lease payments in a similar economic environment. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or incentives received.

    The weighted-average remaining lease term for the Company’s operating leases was 2.9 years at August 31, 2020 and the weighted-average discount rate was 5.49%.

    The Company’s operating lease cost was $186,000 and $183,000 for the three months ended August 31, 2020 and 2019, respectively.

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    The following table presents supplemental cash flow information related to the Company’s operating leases (in thousands):

	Three Months Ended August 31,
	2020	2019
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows from operating leases	$190	$182

    The following table presents the maturities of the Company’s operating lease liabilities as of August 31, 2020 (in thousands):

Fiscal year	Operating Leases
2021 (excluding the first three months of 2021)	$575
2022	779
2023	795
2024	133
2025	--
Thereafter	--
Total future minimum operating lease payments	2,282
Less: imputed interest	179
Present value of operating lease liabilities	$2,103

12. BORROWING AND FINANCING ARRANGEMENTS:

    On January 16, 2020, the Company entered into a Loan and Security Agreement (the “Loan Agreement”) with Silicon Valley Bank (“SVB”). Pursuant to the Loan Agreement, the Company may borrow up to (a) the lesser of (i) the revolving line of $4.0 million or (ii) the amount available under the borrowing base minus (b) the outstanding principal balance of any advances, under a revolving line of credit which is collateralized by all the Company’s assets except intellectual property. The borrowing base is 80% of eligible accounts, as determined by SVB from the Company’s most recent borrowing base statement; provided, however, SVB has the right to decrease the foregoing percentage in its good faith business judgment to mitigate the impact of certain events or conditions, which may adversely affect the collateral or its value. Subject to an event of default, the principal amount outstanding under the revolving line of credit will accrue interest at a floating per annum rate equal to the greater of (a) the prime rate plus an additional percentage of up to 1%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 4.75%. Interest is payable monthly on the last calendar day of each month and the outstanding principal amount, the unpaid interest and all other obligations are due on the maturity date, which is 364 days from the effective date of January 13, 2020. At August 31, 2020, the Company had not drawn against the credit facility and was in compliance with all covenants related to obligations to meet reporting requirements. The balance available to borrow under the line at August 31, 2020 was $159,000. There are no financial covenants in the agreement.

17

13. LONG-TERM DEBT:

    On April 23, 2020, the Company obtained the Paycheck Protection ProgramLoan (the “PPP Loan”) in the aggregate amount of $1,679,000 from SVB. The PPP Loan was evidenced by a promissory note dated April 23, 2020 (the “Note”) that matures on April 23, 2022 and bears interest at a rate of 1% per annum, payable monthly commencing on November 23, 2020. The PPP Loan proceeds were used for payroll, health care benefits, rent and utilities.

    Under the terms of the CARES Act, PPP loan recipients can apply for and be granted forgiveness for all or a portion of loans granted under the PPP. Such forgiveness will be determined, subject to limitations, based on the use of loan proceeds for payment of payroll costs, covered rent and mortgage obligations, and covered utility payments incurred by the Company. The Company intends to apply for forgiveness of the PPP Loan with respect to these covered expenses. No assurance can be given that the Company will obtain forgiveness of the amount due under the loan in whole or in part.

14. STOCK-BASED COMPENSATION

    Stock-based compensation expense consists of expenses for stock options, RSUs and ESPP purchase rights. Stock-based compensation expense for stock options and ESPP purchase rights is 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 Note 11 in the Company’s Annual Report on Form 10-K for fiscal 2020 filed on August 28, 2020 for further information regarding the 2016 Equity Incentive Plan (the “2016 Plan”) and the ESPP.

    The following table summarizes the stock-based compensation expense for the three months ended August 31, 2020 and 2019 (in thousands):

	Three Months Ended
	August 31,
	2020	2019
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Cost of sales	$16	$19
Selling, general and administrative	205	130
Research and development	49	50
Net effect on net income (loss)	$270	$199

    As of August 31, 2020, and August 31, 2019, there were no stock-based compensation expenses capitalized as part of inventory.

    During the three months ended August 31, 2020 and 2019, the Company recorded stock-based compensation expenses related to stock options and RSUs of $245,000 and $150,000, respectively.

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    As of August 31, 2020, the total compensation expense related to unvested stock-based awards under the 2016 Plan, but not yet recognized, was approximately $1,434,000, which is net of estimated forfeitures of $4,000. This expense will be amortized on a straight-line basis over a weighted average period of approximately 2.9 years.

    During the three months ended August 31, 2020 and 2019, the Company recorded stock-based compensation expense related to the ESPP of $25,000 and $49,000, respectively.

    As of August 31, 2020, the total compensation expense related to purchase rights under the ESPP but not yet recognized was approximately $34,000. This expense will be amortized on a straight-line basis over a weighted average period of approximately 0.7 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 expense 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 months ended August 31, 2020 and 2019 were estimated using the following weighted average assumptions in the Black-Scholes option valuation model:

	Three Months Ended
	August 31,
	2020	2019
Expected term (in years)	6	5
Volatility	0.71	0.71
Risk-free interest rate	0.38%	1.88%
Weighted average grant date fair value	$1.16	$0.97

    There were no ESPP purchase rights granted to employees for the three months ended August 31, 2020 and 2019. There were no ESPP shares issued during the three months ended August 31, 2020 and 2019. As of August 31, 2020, there were 233,000 ESPP shares available for issuance.

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    The following tables summarize the Company’s stock option and RSU transactions during the three months ended August 31, 2020 (in thousands):

	Available
	Shares
Balance, May 31, 2020	1,650
Options granted	(200)
RSUs granted	(196)
Options cancelled	188
RSUs cancelled	2
Options expired	(125)
Balance, August 31, 2020	1,319

    The following table summarizes the stock option transactions during the three months ended August 31, 2020 (in thousands, except per share data):

	Outstanding Options
		Weighted
	Number	Average	Aggregate
	of	Exercise	Intrinsic
	Shares	Price	Value
Balances, May 31, 2020	3,153	$2.17	$102
Options granted	200	$1.86
Options cancelled	(188)	$2.18
Options exercised	(148)	$1.30
Balances, August 31, 2020	3,017	$2.19	$148
Options fully vested and expected to vest at August 31, 2020	2,981	$2.19	$145

    The options outstanding and exercisable at August 31, 2020 were in the following exercise price ranges (in thousands, except per share data):

	Options Outstanding			Options Exercisable
	at August 31, 2020			at August 31, 2020
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
$1.22	75	6.54	$1.22	8	6.54	$1.22
$1.64-$1.86	1,105	5.47	$1.70	546	4.72	$1.68
$2.03-$2.46	1,162	3.49	$2.21	846	2.92	$2.19
$2.63-$2.81	464	1.04	$2.70	462	1.03	$2.70
$3.46-$3.93	211	3.90	$3.86	171	3.91	$3.85
$1.22-$3.93	3,017	3.94	$2.19	2,033	3.07	$2.31	$59

    The total intrinsic value of options exercised during the three months ended August 31, 2020 and 2019 was $92,000 and $17,000, respectively. The weighted average remaining contractual life of the options exercisable and expected to be exercisable at August 31, 2020 was 3.93 years.

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    During the three months ended August 31, 2020, RSUs for 161,000 shares were granted to employees, and RSUs for 35,000 shares were granted to non-employee directors, which were immediately fully vested. The market value on the date of the grant of these RSUs was $1.86 per share. During the three months ended August 31, 2020, 3,000 RSUs granted to employees became fully vested. As of August 31, 2020, 166,000 RSUs were unvested which had an intrinsic value of $296,000. During the three months ended August 31, 2019, there were no RSUs granted to employees or non-employee directors. During the three months ended August 31, 2019, 3,000 RSUs granted to employees became fully vested. As of August 31, 2019, 20,000 RSUs were unvested which had an intrinsic value of $26,000.

15. SEGMENT INFORMATION

    The Company has only one reportable segment. The information for revenue category by type, product line, geography and timing of revenue recognition, is summarized in Note “3. REVENUE.”

    Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in thousands):

	August 31,	May 31,
	2020	2020
United States	$621	$662
Asia	1	1
Europe	--	--
	$622	$663

    As of August 31, 2020, the operating lease right-of-use assets of $1,952,000 are allocated in the United States.

    There were no revenues through distributors for the three months ended August 31, 2020 and 2019.

    Sales to the Company’s five largest customers accounted for approximately 81% and 93% of its net sales for the three months ended August 31, 2020 and 2019, respectively. Four customers accounted for approximately 21%,19%, 17%, and 15% of the Company’s net sales in the three months ended August 31, 2020. Two customers accounted for approximately 54% and 22% of the Company’s net sales in the three months ended August 31, 2019. No other customers represented more than 10% of the Company's net sales for either of the three months ended August 31, 2020 and 2019.

 16. DISSOLUTION OF AEHR TEST SYSTEMS JAPAN

    On July 31, 2020, the Company completed the liquidation of Aehr Test Systems Japan K.K. (“ATS-Japan”), a majority owned subsidiary. Accordingly, the Company deconsolidated ATS-Japan and recognized an aggregate net gain of $2,401,000 for the period ended August 31, 2020. The net gain was mainly due to cumulative translation adjustment reclassified into earnings of $2,186,000 and the residual income tax effect in connection with the cumulative translation adjustment released into income tax benefits of $215,000.

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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, 2020 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 when we expect to recognize remaining performance obligations and statements concerning our expectations regarding our operations, business, strategies, prospects, revenues, expenses, costs and resources. These forward-looking statements include management’s judgments, estimates and assumptions and are subject to certain risks and uncertainties that could cause our actual results to differ materially from anticipated results or other expectations reflected in 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.

    Investors and others should note that we announce material financial information to our investors using our investor relations website (https://www.aehr.com/investor-relations/), SEC filings, press releases, public conference calls and webcasts. We use these channels to communicate with our investors and the public about our company, our products and services and other issues. It is possible that the information we post on our investor relations website could be deemed to be material information. Therefore, we encourage investors, the media, and others interested in our company to review the information we post on our investor relations website.

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 FOX full wafer contact parallel test and burn-in system, WaferPak contactors, the DiePak carrier, test fixtures and the Advanced Burn-in and Test System, or ABTS.

    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.

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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, assumptions and judgements, 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, 2020.

    There have been no material changes to our critical accounting policies and estimates during the three months ended August 31, 2020 compared to those discussed in our Annual Report on Form 10-K for the fiscal year ended May 31, 2020.

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
	August 31,
	2020	2019
Net sales	100.0%	100.0%
Cost of sales	88.7	59.0
Gross profit	11.3	41.0
Operating expenses:
Selling, general and administrative	75.3	32.7
Research and development	44.7	16.1
Total operating expenses	120.0	48.8
Loss from operations	(108.7)	(7.8)
Interest (expense) income, net	(0.6)	0.2
Net gain from dissolution of Aehr Test Systems Japan	108.6	--
Other (expense) income, net	(4.7)	0.2
Loss before income tax benefit (expense)	(5.4)	(7.4)
Income tax benefit (expense)	10.7	(0.1)
Net income (loss)	5.3	(7.5)
Less: Net income attributable to the noncontrolling interest	--	--
Net income (loss) attributable to Aehr Test Systems common shareholders	5.3%	(7.5)%

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THREE MONTHS ENDED AUGUST 31, 2020 COMPARED TO THREE MONTHS ENDED AUGUST 31, 2019

    NET SALES. Net sales decreased to $2.0 million for the three months ended August 31, 2020 from $5.5 million for the three months ended August 31, 2019, a decrease of 63.6%. The decrease in net sales for the three months ended August 31, 2020 was primarily due to the decreases in net sales of both our wafer-level products and Test During Burn-in (TDBI) products. Net sales of our wafer-level products for the three months ended August 31, 2020 were $1.6 million, and decreased approximately $3.3 million from the three months ended August 31, 2019. Net sales of our TDBI products for the three months ended August 31, 2020 were $453,000, and decreased $254,000 from the three months ended August 31, 2019.

    GROSS PROFIT. Gross profit decreased to $227,000 for the three months ended August 31, 2020 from $2.3 million for the three months ended August 31, 2019, a decrease of approximately 90.0%. Gross profit margin decreased to 11.3% for the three months ended August 31, 2020 from 41.0% for the three months ended August 31, 2019. The decrease in gross profit margin was primarily due to increased direct material costs as a percentage of sales resulting in a 5.0% gross profit margin reduction, increased warranty provision, mainly due to adjustments related to preexisting warranties, resulting in a 6.5% gross profit margin reduction, and manufacturing inefficiencies due to a lower level of net sales resulting in a 17.4% gross profit margin reduction.

    SELLING, GENERAL AND ADMINISTRATIVE. SG&A expenses decreased to $1.5 million for the three months ended August 31, 2020 from $1.8 million for the three months ended August 31, 2019, a decrease of 16.3%. The decrease in SG&A expenses was primarily due to a decrease in employment related expenses.

    RESEARCH AND DEVELOPMENT. R&D expenses increased to $900,000 for the three months ended August 31, 2020 from $892,000 for the three months ended August 31, 2019, an increase of 0.9%.

    INTEREST (EXPENSE) INCOME, NET. Interest expense, net for the three months ended August 31, 2020 was $13,000 compared with interest income, net of $12,000 for the three months ended August 31, 2019. The interest expense for the three months ended August 31, 2020 was from the PPP Loan that we obtained on April 23, 2020.

    NET GAIN FROM DISSOLUTION OF AEHR TEST SYSTEMS JAPAN. Net gain from dissolution of Aehr Test Systems Japan was $2.2 million for the three months ended August 31, 2020, due to the release of the cumulative translation adjustment in connection with the complete liquidation of Aehr Test Systems Japan subsidiary in July 2020.

    OTHER (EXPENSE) INCOME, NET. Other expense, net was $94,000 for the three months ended August 31, 2020, compared with other income, net of $10,000 for the three months ended August 31, 2019. The change in other (expense) income, net 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 BENEFIT (EXPENSE). Income tax benefit was $215,000 for the three months ended August 31, 2020, compared with income tax expense of $6,000 for the three months ended August 31, 2019. During the three months ended August 31, 2020, the currency translation adjustment balance was released and the residual income tax effect of $215,000 was recorded pursuant to the inter-period allocation rules in connection with the complete liquidation of Aehr Test Systems Japan subsidiary in July 2020.

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LIQUIDITY AND CAPITAL RESOURCES

    Net cash provided by operating activities was $643,000 for the three months ended August 31, 2020 and net cash used in operating activities was $190,000 for the three months ended August 31, 2019. For the three months ended August 31, 2020, net cash provided by operating activities was primarily the result of net income of $107,000, as adjusted to exclude the effect of net gain from dissolution of Aehr Test Systems Japan of $2.4 million including income tax benefit, and a non-cash charge of stock-based compensation expense of $270,000 and depreciation and amortization of $82,000. Other change in cash from operations primarily resulted from a decrease in accounts receivable of $2.6 million. The decrease in accounts receivable was primarily due to a decrease in sales for the three months ended August 31, 2020 compared with the three months ended May 31, 2020. For the three months ended August 31, 2019, net cash used in operating activities was primarily the result of the net loss of $413,000, as adjusted to exclude the effect of a non-cash charge of stock-based compensation expense of $199,000 and depreciation and amortization of $95,000. Other changes in cash from operations primarily resulted from a decrease in accounts receivable of $1.6 million, partially offset by decreases in customer deposits and deferred revenue, accrued expenses and accounts payable of $1.0 million, $455,000 and $235,000, respectively. The decrease in accounts receivable was primarily due to a decrease in sales for the three months ended August 31, 2019 compared with the three months ended May 31, 2019. The decrease in customer deposits and deferred revenue was primarily due to the decrease in backlog of customer orders with down payments. The decrease in accrued expenses was primarily due to the severance payments to terminated employees impacted by the restructuring plan implemented during fiscal year 2019. The decrease in accounts payable was primarily due to the decrease in inventory purchases for the three months ended August 31, 2019 compared with the three months ended May 31, 2019.

    Net cash used in investing activities was $47,000 and $50,000 for the three months ended August 31, 2020 and 2019, respectively. Net cash used in investing activities during the three months ended August 31, 2020 and 2019 was due to purchases of property and equipment.

    Net cash provided by financing activities was $190,000 and $62,000 for the three months ended August 31, 2020 and 2019, respectively. Net cash provided by financing activities during the three months ended August 31, 2020 and 2019 was due to proceeds from the issuance of common stock under employee plans.

    The effect of fluctuation in exchange rates increased cash by $94,000 and $16,000 for the three months ended August 31, 2020 and 2019, respectively. The changes were due to the fluctuation in the value of the dollar compared to foreign currencies.

    As of August 31, 2020 and May 31, 2020, we had working capital of $11.8 million and $13.8 million, respectively.

    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 February 2018 and expires in July 2023. 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.

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    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 special purpose or 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 the Company's Annual Report on Form 10-K for the year ended May 31, 2020.

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS

    We had no holdings of derivative financial or commodity instruments as of August 31, 2020 or May 31, 2020.

    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. 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 to 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.

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.

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    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.

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, 2020 filed with the Securities and Exchange Commission on August 28, 2020.

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.

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Item 6. EXHIBITS

Exhibit No.	Description
3.2(1)	Amended and Restated Bylaws of the 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 3.1 previously filed with the Company’s Current Report on Form 8-K filed September 9, 2020 (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.

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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: October 14, 2020	By:	/s/ GAYN ERICKSON
		Gayn Erickson
		President and Chief Executive Officer (Principal Executive Officer)

Date: October 14, 2020	By:	/s/ KENNETH B. SPINK
		Kenneth B. Spink
		Vice President of Finance and Chief Financial Officer (Principal Financial and Accounting Officer)

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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: October 14, 2020
	/s/ GAYN ERICKSON
	Gayn Erickson
	President and Chief Executive Officer (Principal 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: October 14, 2020
	/s/ KENNETH B. SPINK
	Kenneth B. Spink
	Vice President of Finance and Chief Financial Officer (Principal Financial and Accounting Officer)

  

EX-32.1

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 August 31, 2020 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: October 14, 2020
	/s/ GAYN ERICKSON
	Gayn Erickson
	President and Chief Executive Officer (Principal 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 August 31, 2020 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: October 14, 2020
	/s/ KENNETH B. SPINK
	Kenneth B. Spink
	Vice President of Finance and Chief Financial Officer (Principal Financial and Accounting Officer)

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Document and Entity Information - shares	3 Months Ended
	Aug. 31, 2020	Sep. 30, 2020
Cover [Abstract]
Entity Registrant Name	AEHR TEST SYSTEMS
Entity Central Index Key	0001040470
Document Type	10-Q
Document Period End Date	Aug. 31, 2020
Amendment Flag	false
Current Fiscal Year End Date	--05-31
Entity Interactive Data Current	Yes
Entity Incorporation, State or Country Code	CA
Entity File Number	000-22893
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		23,310,312
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2021

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Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020	[1]
ASSETS
Cash and cash equivalents	$ 6,313	$ 5,433
Accounts receivable, net	1,116	3,717
Inventories	8,102	7,989
Prepaid expenses and other current assets	439	512
Total current assets	15,970	17,651
Property and equipment, net	622	663
Operating lease right-of-use assets	1,952	2,107
Other assets	147	153
Total assets	18,691	20,574
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	809	945
Accrued expenses	1,373	1,439
Operating lease liabilities, short-term	671	658
Customer deposits and deferred revenue, short-term	387	170
Current portion of long-term debt	933	653
Total current liabilities	4,173	3,865
Operating lease liabilities, long-term	1,432	1,605
Long-term debt, net of current portion	746	1,026
Deferred revenue, long -term	19	22
Total liabilities	6,370	6,518
Aehr Test Systems shareholders' equity:
Common stock, $0.01 par value: Authorized: 75,000 shares; Issued and outstanding: 23,291 shares and 23,107 shares at August 31, 2020 and May 31, 2020, respectively	233	231
Additional paid-in capital	86,356	85,898
Accumulated other comprehensive (loss) income	(67)	2,234
Accumulated deficit	(74,201)	(74,286)
Total Aehr Test Systems shareholders' equity	12,321	14,077
Noncontrolling interest	0	(21)
Total shareholders' equity	12,321	14,056
Total liabilities and shareholders' equity	$ 18,691	$ 20,574

[1] The condensed consolidated balance sheet at May 31, 2020 has been derived from the audited consolidated financial statements at that date.

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Aug. 31, 2020	May 31, 2020
Statement of Financial Position [Abstract]
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in thousands)	75,000	75,000
Common stock, shares issued (in thousands)	23,291	23,107
Common stock, shares outstanding (in thousands)	23,291	23,107

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Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Income Statement [Abstract]
Net sales	$ 2,012	$ 5,533
Cost of sales	1,785	3,262
Gross profit	227	2,271
Operating expenses:
Selling, general and administrative	1,514	1,808
Research and development	900	892
Total operating expenses	2,414	2,700
Loss from operations	(2,187)	(429)
Interest (expense) income, net	(13)	12
Net gain from dissolution of Aehr Test Systems Japan	2,186	0
Other (expense) income, net	(94)	10
Loss before income tax benefit (expense)	(108)	(407)
Income tax benefit (expense)	215	(6)
Net income (loss)	107	(413)
Less: Net income attributable to the noncontrolling interest	0	0
Net income (loss) attributable to Aehr Test Systems common shareholders	$ 107	$ (413)
Net income (loss) per share: basic and diluted	$ .00	$ (0.02)
Shares used in per share calculations: basic (in thousands)	23,248	22,708
Shares used in per share calculations: diluted (in thousands)	23,455	22,708

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Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 107	$ (413)
Other comprehensive loss, net of tax:
Net change in cumulative translation adjustment	99	(15)
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan	(2,401)	0
Total comprehensive loss	(2,195)	(428)
Less: Comprehensive income (loss) attributable to the noncontrolling interest	21	(1)
Comprehensive loss, attributable to Aehr Test Systems common shareholders	$ (2,216)	$ (427)

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Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Total Aehr Test Systems Shareholders' Equity	Noncontrolling Interest	Total
Beginning balance, shares (in thousands) at May. 31, 2019	22,669
Beginning balance, amount at May. 31, 2019	$ 227	$ 84,499	$ 2,230	$ (71,484)	$ 15,472	$ (19)	$ 15,453
Issuance of common stock under employee plans, shares (in thousands)	52
Issuance of common stock under employee plans, amount		62			62		62
Stock-based compensation		199			199		199
Net income (loss)				(413)	(413)		(413)
Foreign currency translation adjustment			(14)		(14)	(1)	(15)
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan							0
Ending balance, shares (in thousands) at Aug. 31, 2019	22,721
Ending balance, amount at Aug. 31, 2019	$ 227	84,760	2,216	(71,897)	15,306	(20)	15,286
Beginning balance, shares (in thousands) at May. 31, 2020	23,107
Beginning balance, amount at May. 31, 2020	$ 231	85,898	2,234	(74,286)	14,077	(21)	14,056	[1]
Issuance of common stock under employee plans, shares (in thousands)	184
Issuance of common stock under employee plans, amount	$ 2	188			190		190
Stock-based compensation		270			270		270
Net income (loss)				107	107		107
Foreign currency translation adjustment			100		100	(1)	99
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan			(2,401)	(22)	(2,423)	22	(2,401)
Ending balance, shares (in thousands) at Aug. 31, 2020	23,291
Ending balance, amount at Aug. 31, 2020	$ 233	$ 86,356	$ (67)	$ (74,201)	$ 12,321	$ 0	$ 12,321

[1] The condensed consolidated balance sheet at May 31, 2020 has been derived from the audited consolidated financial statements at that date.

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 107	$ (413)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Stock-based compensation expense	270	199
Depreciation and amortization	82	95
Net gain from dissolution of Aehr Test Systems Japan	(2,186)	0
Income tax benefit related to dissolution of Aehr Test Systems Japan	(215)	0
Changes in operating assets and liabilities:
Accounts receivable	2,642	1,584
Inventories	(112)	(156)
Prepaid expenses and other assets	80	194
Accounts payable	(173)	(235)
Accrued expenses	(67)	(455)
Customer deposits and deferred revenue	214	(1,006)
Income taxes payable	1	3
Net cash provided by (used in) operating activities	643	(190)
Cash flows from investing activities:
Purchases of property and equipment	(47)	(50)
Net cash used in investing activities	(47)	(50)
Cash flows from financing activities:
Proceeds from issuance of common stock under employee plans, net of taxes paid related to share settlement of equity awards	190	62
Net cash provided by financing activities	190	62
Effect of exchange rates on cash, cash equivalents and restricted cash	94	16
Net increase (decrease) in cash, cash equivalents and restricted cash	880	(162)
Cash, cash equivalents and restricted cash, beginning of period	5,513	5,508
Cash, cash equivalents and restricted cash, end of period	$ 6,393	$ 5,346

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1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

3 Months Ended

Aug. 31, 2020

Accounting Policies [Abstract]

1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCCOUNTING POLICIES

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 (the “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, 2020 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, 2020. 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.

    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, 2020. There have been no significant changes in the Company’s significant accounting policies during the three months ended August 31, 2020.

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2. RECENT ACCOUNTING PRONOUNCEMENTS

3 Months Ended

Aug. 31, 2020

Accounting Standards Update and Change in Accounting Principle [Abstract]

2. RECENT ACCOUNTING PRONOUNCEMENTS

2. RECENT ACCOUNTING PRONOUNCEMENTS

Accounting Standards Not Yet Adopted

    Financial Instruments

    In June 2016, the FASB issued an accounting standard update (“ASU”) 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 collectability of the reported amount. Due to a subsequent ASU in November 2019, the accounting standard will be effective for the Company beginning in the first quarter of fiscal 2024 on a modified retrospective basis, and early adoption in fiscal 2021 is permitted. The Company does not expect a material impact of this accounting standard on its consolidated financial statements.

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3. REVENUE

3 Months Ended

Aug. 31, 2020

Revenue from Contract with Customer [Abstract]

3. REVENUE

3. REVENUE

Revenue recognition

    The Company recognizes revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services by following a five-step process, (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price, and (5) recognize revenue when or as the Company satisfies a performance obligation, as further described below.

    Performance obligations include sales of systems, contactors, spare parts, and services, as well as installation and training services included in customer contracts.

    A contract’s transaction price is allocated to each distinct performance obligation. In determining the transaction price, the Company evaluates whether the price is subject to refund or adjustment to determine the net consideration to which the Company expects to be entitled. The Company generally does not grant return privileges, except for defective products during the warranty period.

    For contracts that contain multiple performance obligations, the Company allocates the transaction price to the performance obligations on a relative standalone selling price basis. Standalone selling prices are based on multiple factors including, but not limited to historical discounting trends for products and services and pricing practices in different geographies.

    Revenue for systems and spares is recognized at a point in time, which is generally upon shipment or delivery. Revenue from services is recognized over time as services are completed or ratably over the contractual period of generally one year or less.

    The Company has elected the practical expedient to not assess whether a contract has a significant financing component as the Company’s standard payment terms are less than one year.

Disaggregation of revenue

    The following tables show revenues by major product categories. Within each product category, contract terms, conditions and economic factors affecting the nature, amount, timing and uncertainty around revenue recognition and cash flow are substantially similar.

    The Company’s revenues by product category are as follows (in thousands): 

	Three Months Ended
	August 31,
	2020		2019
Type of good / service:
Systems	$	801	$	2,934
Contactors		627		1,650
Services		584		949
	$	2,012	$	5,533
Product lines:
Wafer-level	$	1,559	$	4,826
Test During Burn-In		453		707
	$	2,012	$	5,533

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

	Three Months Ended
	August 31,
	2020		2019
Geographic region:
United States	$	1,041	$	5,057
Asia		969		338
Europe		2		138
	$	2,012	$	5,533

    With the exception of the amount of service contracts and extended warranties, the Company’s product category revenues are recognized at a point in time when control transfers to the customers. The following presents revenue based on timing of recognition (in thousands):

	Three Months Ended
	August 31,
	2020		2019
Timing of revenue recognition:
Products and services transferred at a point in time	$	1,570	$	4,859
Services transferred over time		442		674
	$	2,012	$	5,533

Contract balances

    A receivable is recognized in the period the Company delivers goods or provides services or when the Company’s right to consideration is unconditional. The Company usually does not record contract assets because the Company has an unconditional right to payment upon satisfaction of the performance obligation, and therefore, a receivable is more commonly recorded than a contract asset.

    Contract liabilities include payments received in advance of performance under a contract and are satisfied as the associated revenue is recognized. Contract liabilities are reported on the Condensed Consolidated Balance Sheets at the end of each reporting period as a component of deferred revenue. Contract liabilities as of August 31, 2020 and May 31, 2020 were $406,000 and $192,000, respectively. During the three months ended August 31, 2020, the Company recognized $79,000 of revenues that were included in contract liabilities as of May 31, 2020.

Remaining performance obligations

    On August 31, 2020, the Company had $128,000 of remaining performance obligations, which were comprised of deferred service contracts and extended warranty contracts not yet delivered. The Company expects to recognize approximately 66% of its remaining performance obligations as revenue in fiscal 2021, and an additional 34% in fiscal 2022 and thereafter. The foregoing excludes the value of other remaining performance obligations as they have original durations of one year or less, and also excludes information about variable consideration allocated entirely to a wholly unsatisfied performance obligation.

Costs to obtain or fulfill a contract

    The Company generally expenses sales commissions when incurred as a component of selling, general and administrative expense as the amortization period is typically less than one year. Additionally, the majority of the Company’s cost of fulfillment as a manufacturer of products is classified as inventory and fixed assets, which are accounted for under the respective guidance for those asset types. Other costs of contract fulfillment are immaterial due to the nature of the Company’s products and their respective manufacturing process.

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4. EARNINGS PER SHARE

3 Months Ended

Aug. 31, 2020

Earnings Per Share [Abstract]

4. EARNINGS PER SHARE

4. 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, restricted stock units (“RSUs”), and Amended and Restated 2006 Employee Stock Purchase Plan (“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 Aehr Test Systems common shareholders (in thousands, except per share data):

	Three Months Ended
	August 31,
	2020		2019
Numerator: Net income (loss)	$	107	$	(413	)
Denominator for basic net income (loss) per share:
Weighted average shares outstanding		23,248		22,708
Shares used in basic net income (loss) per share calculation		23,248		22,708
Effect of dilutive securities		207		—
Denominator for diluted net income (loss) per share		23,455		22,708
Basic net income (loss) per share	$	0.00	$	(0.02	)
Diluted net income (loss) per share	$	0.00	$	(0.02	)

    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 2,594,000 shares of common stock were outstanding as of August 31, 2020, 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 months ended August 31, 2019, potential common shares were not 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 these periods are the same. Stock options to purchase 3,434,000 shares of common stock, RSUs for 20,000 shares and ESPP rights to purchase 297,000 ESPP shares were outstanding as of August 31, 2019, but were not included in the computation of diluted net loss per share because the inclusion of such shares would be anti-dilutive.

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5. FAIR VALUE OF FINANCIAL INSTRUMENTS

3 Months Ended

Aug. 31, 2020

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 August 31, 2020 (in thousands):

	Balance as of
	August 31, 2020		Level 1		Level 2		Level 3
Money market funds	$	80	$	80	$	—	$	—
Assets	$	80	$	80	$	—	$	—

    The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of May 31, 2020 (in thousands):

	Balance as of
	May 31, 2020		Level 1		Level 2		Level 3
Money market funds	$	80	$	80	$	—	$	—
Assets	$	80	$	80	$	—	$	—

    Included in money market funds as of August 31, 2020 and May 31, 2020 is $80,000 restricted cash representing a security deposit for the Company’s United States manufacturing and office space lease which is included in other assets in the consolidated balance sheet.

    There were no financial liabilities measured at fair value as of August 31, 2020 and May 31, 2020.

    There were no transfers between Level 1 and Level 2 fair value measurements during the three months ended August 31, 2020.

    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.

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6. ACCOUNTS RECEIVABLE, NET

3 Months Ended

Aug. 31, 2020

Receivables [Abstract]

6. ACCOUNTS RECEIVABLE, NET

6. ACCOUNTS RECEIVABLE, NET

    Accounts receivable represent customer trade receivables. As of August 31, 2020 and May 31, 2020, there was no allowance for doubtful accounts. 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

3 Months Ended

Aug. 31, 2020

Inventory Disclosure [Abstract]

7. INVENTORIES

7. INVENTORIES

    Inventories are comprised of the following (in thousands):

	August 31,		May 31,
	2020		2020
Raw materials and sub-assemblies	$	5,571	$	5,055
Work in process		2,529		2,917
Finished goods		2		17
	$	8,102	$	7,989

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8. PRODUCT WARRANTIES

3 Months Ended

Aug. 31, 2020

Product Warranties Disclosures [Abstract]

8. PRODUCT WARRANTIES

8. 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 months ended August 31, 2020 and 2019 (in thousands):

	Three Months Ended
	August 31,
	2020			2019
Balance at the beginning of the period	$	246		$	154
Accruals for warranties issued during the period		79			62
Adjustments to previously existing warranty accruals		76			—
Consumption of reserves		(71	)		(24	)
Balance at the end of the period	$	330		$	192

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

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9. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM

3 Months Ended

Aug. 31, 2020

Customer Deposits And Deferred Revenue Short-term

9. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM

9. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM

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

	August 31,		May 31,
	2020		2020
Customer deposits	$	278	$	—
Deferred revenue		109		170
	$	387	$	170

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10. INCOME TAXES

3 Months Ended

Aug. 31, 2020

Income Tax Disclosure [Abstract]

10. INCOME TAXES

10. 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.

    On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was passed into law. The CARES Act includes several significant business tax provisions including modification to the taxable income limitation for utilization of net operating losses (“NOLs”) incurred in 2018, 2019 and 2020 and the ability to carry back NOLs from those years for a period of up to five years, an increase to the limitation on deductibility of certain business interest expense, bonus depreciation for purchases of qualified improvement property and special deductions on certain corporate charitable contributions. The Company is currently analyzing the impact of these changes and therefore an estimate of the impact to income taxes is not yet available.

    On June 29, 2020, the Assembly Bill 85 (AB 85) was signed into law as part of the California 2020 Budget Act, which temporarily suspends the use of California net operating losses and imposes a cap on the amount of business incentive tax credits that companies can utilize against their net income for tax years 2020, 2021, and 2022. The Company analyzed the provisions of AB 85 and determined there was no impact on its provision for income taxes for the current period and will continue to evaluate the impact, if any, AB 85 may have on the Company’s condensed consolidated financial statements and disclosures.

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11. LEASES

3 Months Ended

Aug. 31, 2020

Leases [Abstract]

11. LEASES

11. LEASES

    The Company has only operating leases for real estate including corporate offices, warehouse space and certain equipment. A lease with an initial term of 12 months or less is generally not recorded on the condensed consolidated balance sheet, unless the arrangement includes an option to purchase the underlying asset, or renew the arrangement that the Company is reasonably certain to exercise (short-term leases). The Company recognizes lease expense on a straight-line basis over the lease term for short-term leases that the Company does not record on its balance sheet. The Company’s operating leases have remaining lease terms of 1 month to 3 years.

    The Company determines whether an arrangement is or contains a lease based on the unique facts and circumstances present at the inception of the arrangement. Operating lease liabilities and their corresponding right-of-use assets are recorded based on the present value of lease payments over the expected lease term. The interest rate implicit in lease contracts is typically not readily determinable.

    As such, the Company utilizes the appropriate incremental borrowing rate, which is the rate incurred to borrow on a collateralized basis over a similar term at an amount equal to the lease payments in a similar economic environment. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or incentives received.

    The weighted-average remaining lease term for the Company’s operating leases was 2.9 years at August 31, 2020 and the weighted-average discount rate was 5.49%.

    The Company’s operating lease cost was $186,000 and $183,000 for the three months ended August 31, 2020 and 2019, respectively.

    The following table presents supplemental cash flow information related to the Company’s operating leases (in thousands):

	Three Months Ended
	August 31,
	2020		2019
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows from operating leases	$	190	$	182

    The following table presents the maturities of the Company’s operating lease liabilities as of August 31, 2020 (in thousands):

Fiscal year	Operating Leases
2021 (excluding the first three months of 2021)	$	575
2022		779
2023		795
2024		133
2025		—
Thereafter		—
Total future minimum operating lease payments		2,282
Less: imputed interest		179
Present value of operating lease liabilities	$	2,103

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12. BORROWING AND FINANCING ARRANGEMENTS

3 Months Ended

Aug. 31, 2020

Debt Disclosure [Abstract]

12. BORROWING AND FINANCING ARRANGEMENTS

12. BORROWING AND FINANCING ARRANGEMENTS:

    On January 16, 2020, the Company entered into a Loan and Security Agreement (the “Loan Agreement”) with Silicon Valley Bank (“SVB”). Pursuant to the Loan Agreement, the Company may borrow up to (a) the lesser of (i) the revolving line of $4.0 million or (ii) the amount available under the borrowing base minus (b) the outstanding principal balance of any advances, under a revolving line of credit which is collateralized by all the Company’s assets except intellectual property. The borrowing base is 80% of eligible accounts, as determined by SVB from the Company’s most recent borrowing base statement; provided, however, SVB has the right to decrease the foregoing percentage in its good faith business judgment to mitigate the impact of certain events or conditions, which may adversely affect the collateral or its value. Subject to an event of default, the principal amount outstanding under the revolving line of credit will accrue interest at a floating per annum rate equal to the greater of (a) the prime rate plus an additional percentage of up to 1%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 4.75%. Interest is payable monthly on the last calendar day of each month and the outstanding principal amount, the unpaid interest and all other obligations are due on the maturity date, which is 364 days from the effective date of January 13, 2020. At August 31, 2020, the Company had not drawn against the credit facility and was in compliance with all covenants related to obligations to meet reporting requirements. The balance available to borrow under the line at August 31, 2020 was $159,000. There are no financial covenants in the agreement.

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13. LONG-TERM DEBT

3 Months Ended

Aug. 31, 2020

Long-term Debt, Unclassified [Abstract]

13. LONG-TERM DEBT

13. LONG-TERM DEBT:

    On April 23, 2020, the Company obtained the Paycheck Protection Program Loan (the “PPP Loan”) in the aggregate amount of $1,679,000 from SVB. The PPP Loan was evidenced by a promissory note dated April 23, 2020 (the “Note”) that matures on April 23, 2022 and bears interest at a rate of 1% per annum, payable monthly commencing on November 23, 2020. The PPP Loan proceeds were used for payroll, health care benefits, rent and utilities.

    Under the terms of the CARES Act, PPP loan recipients can apply for and be granted forgiveness for all or a portion of loans granted under the PPP. Such forgiveness will be determined, subject to limitations, based on the use of loan proceeds for payment of payroll costs, covered rent and mortgage obligations, and covered utility payments incurred by the Company. The Company intends to apply for forgiveness of the PPP Loan with respect to these covered expenses. No assurance can be given that the Company will obtain forgiveness of the amount due under the loan in whole or in part.

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14. STOCK-BASED COMPENSATION

3 Months Ended

Aug. 31, 2020

Share-based Payment Arrangement [Abstract]

14. STOCK-BASED COMPENSATION

14. STOCK-BASED COMPENSATION

    Stock-based compensation expense consists of expenses for stock options, RSUs and ESPP purchase rights. Stock-based compensation expense for stock options and ESPP purchase rights is 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 Note 11 in the Company’s Annual Report on Form 10-K for fiscal 2020 filed on August 28, 2020 for further information regarding the 2016 Equity Incentive Plan (the “2016 Plan”) and the ESPP.

    The following table summarizes the stock-based compensation expense for the three months ended August 31, 2020 and 2019 (in thousands):

	Three Months Ended
	August 31,
	2020		2019
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Cost of sales	$	16	$	19
Selling, general and administrative		205		130
Research and development		49		50
Net effect on net income (loss)	$	270	$	199

    As of August 31, 2020, and August 31, 2019, there were no stock-based compensation expenses capitalized as part of inventory.

    During the three months ended August 31, 2020 and 2019, the Company recorded stock-based compensation expenses related to stock options and RSUs of $245,000 and $150,000, respectively.

    As of August 31, 2020, the total compensation expense related to unvested stock-based awards under the 2016 Plan, but not yet recognized, was approximately $1,434,000, which is net of estimated forfeitures of $4,000. This expense will be amortized on a straight-line basis over a weighted average period of approximately 2.9 years.

    During the three months ended August 31, 2020 and 2019, the Company recorded stock-based compensation expense related to the ESPP of $25,000 and $49,000, respectively.

    As of August 31, 2020, the total compensation expense related to purchase rights under the ESPP but not yet recognized was approximately $34,000. This expense will be amortized on a straight-line basis over a weighted average period of approximately 0.7 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 expense 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 months ended August 31, 2020 and 2019 were estimated using the following weighted average assumptions in the Black-Scholes option valuation model:

	Three Months Ended
	August 31,
	2020		2019
Expected term (in years)		6		5
Volatility		0.71		0.71
Risk-free interest rate		0.38%		1.88%
Weighted average grant date fair value	$	1.16	$	0.97

    There were no ESPP purchase rights granted to employees for the three months ended August 31, 2020 and 2019. There were no ESPP shares issued during the three months ended August 31, 2020 and 2019. As of August 31, 2020, there were 233,000 ESPP shares available for issuance.

    The following tables summarize the Company’s stock option and RSU transactions during the three months ended August 31, 2020 (in thousands):

	Available
	Shares
Balance, May 31, 2020		1,650
Options granted		(200	)
RSUs granted		(196	)
Options cancelled		188
RSUs cancelled		2
Options expired		(125	)
Balance, August 31, 2020		1,319

    The following table summarizes the stock option transactions during the three months ended August 31, 2020 (in thousands, except per share data):

	Outstanding Options
				Weighted
	Number			Average		Aggregate
	of			Exercise		Intrinsic
	Shares			Price		Value
Balances, May 31, 2020	3,153		$	2.17	$	102
Options granted	200		$	1.86
Options cancelled	(188	)	$	2.18
Options exercised	(148	)	$	1.30
Balances, August 31, 2020	3,017		$	2.19	$	148
Options fully vested and expected to vest at August 31, 2020	2,981		$	2.19	$	145

    The options outstanding and exercisable at August 31, 2020 were in the following exercise price ranges (in thousands, except per share data):

	Options Outstanding						Options Exercisable
	at August 31, 2020						at August 31, 2020
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
$1.22		75		6.54	$	1.22		8		6.54	$	1.22
$1.64-$1.86		1,105		5.47	$	1.70		546		4.72	$	1.68
$2.03-$2.46		1,162		3.49	$	2.21		846		2.92	$	2.19
$2.63-$2.81		464		1.04	$	2.70		462		1.03	$	2.70
$3.46-$3.93		211		3.90	$	3.86		171		3.91	$	3.85
$1.22-$3.93		3,017		3.94	$	2.19		2,033		3.07	$	2.31	$	59

    The total intrinsic value of options exercised during the three months ended August 31, 2020 and 2019 was $92,000 and $17,000, respectively. The weighted average remaining contractual life of the options exercisable and expected to be exercisable at August 31, 2020 was 3.93 years.

    During the three months ended August 31, 2020, RSUs for 161,000 shares were granted to employees, and RSUs for 35,000 shares were granted to non-employee directors, which were immediately fully vested. The market value on the date of the grant of these RSUs was $1.86 per share. During the three months ended August 31, 2020, 3,000 RSUs granted to employees became fully vested. As of August 31, 2020, 166,000 RSUs were unvested which had an intrinsic value of $296,000. During the three months ended August 31, 2019, there were no RSUs granted to employees or non-employee directors. During the three months ended August 31, 2019, 3,000 RSUs granted to employees became fully vested. As of August 31, 2019, 20,000 RSUs were unvested which had an intrinsic value of $26,000.

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15. SEGMENT INFORMATION

3 Months Ended

Aug. 31, 2020

Segment Reporting [Abstract]

15. SEGMENT INFORMATION

15. SEGMENT INFORMATION

    The Company has only one reportable segment. The information for revenue category by type, product line, geography and timing of revenue recognition, is summarized in Note “3. REVENUE.”

    Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in thousands):

	August 31,		May 31,
	2020		2020
United States	$	621	$	662
Asia		1		1
Europe		—		—
	$	622	$	663

    As of August 31, 2020, the operating lease right-of-use assets of $1,952,000 are allocated in the United States.

    There were no revenues through distributors for the three months ended August 31, 2020 and 2019.

    Sales to the Company’s five largest customers accounted for approximately 81% and 93% of its net sales for the three months ended August 31, 2020 and 2019, respectively. Four customers accounted for approximately 21%,19%, 17%, and 15% of the Company’s net sales in the three months ended August 31, 2020. Two customers accounted for approximately 54% and 22% of the Company’s net sales in the three months ended August 31, 2019. No other customers represented more than 10% of the Company's net sales for either of the three months ended August 31, 2020 and 2019.

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16. DISSOLUTION OF AEHR TEST SYSTEMS JAPAN

3 Months Ended

Aug. 31, 2020

Dissolution of Aehr Test Systems Japan

16. DISSOLUTION OF AEHR TEST SYSTEMS JAPAN

16. DISSOLUTION OF AEHR TEST SYSTEMS JAPAN

    On July 31, 2020, the Company completed the liquidation of Aehr Test Systems Japan K.K. (“ATS-Japan”), a majority owned subsidiary. Accordingly, the Company deconsolidated ATS-Japan and recognized an aggregate net gain of $2,401,000 for the period ended August 31, 2020. The net gain was mainly due to cumulative translation adjustment reclassified into earnings of $2,186,000 and the residual income tax effect in connection with the cumulative translation adjustment released into income tax benefits of $215,000.

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

3 Months Ended

Aug. 31, 2020

Accounting Policies [Abstract]

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCCOUNTING POLICIES

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 (the “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, 2020 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, 2020. 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.

SUMMARY OF 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, 2020. There have been no significant changes in the Company’s significant accounting policies during the three months ended August 31, 2020.

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2. RECENT ACCOUNTING PRONOUNCEMENTS (Policies)

3 Months Ended

Aug. 31, 2020

Accounting Standards Update and Change in Accounting Principle [Abstract]

RECENT ACCOUNTING PRONOUNCEMENTS

RECENT ACCOUNTING PRONOUNCEMENTS

Accounting Standards Not Yet Adopted

    Financial Instruments

    In June 2016, the FASB issued an accounting standard update (“ASU”) 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 collectability of the reported amount. Due to a subsequent ASU in November 2019, the accounting standard will be effective for the Company beginning in the first quarter of fiscal 2024 on a modified retrospective basis, and early adoption in fiscal 2021 is permitted. The Company does not expect a material impact of this accounting standard on its consolidated financial statements.

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3. REVENUE (Tables)

3 Months Ended

Aug. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

    The Company’s revenues by product category are as follows (in thousands): 

	Three Months Ended
	August 31,
	2020		2019
Type of good / service:
Systems	$	801	$	2,934
Contactors		627		1,650
Services		584		949
	$	2,012	$	5,533
Product lines:
Wafer-level	$	1,559	$	4,826
Test During Burn-In		453		707
	$	2,012	$	5,533

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

	Three Months Ended
	August 31,
	2020		2019
Geographic region:
United States	$	1,041	$	5,057
Asia		969		338
Europe		2		138
	$	2,012	$	5,533

    With the exception of the amount of service contracts and extended warranties, the Company’s product category revenues are recognized at a point in time when control transfers to the customers. The following presents revenue based on timing of recognition (in thousands):

	Three Months Ended
	August 31,
	2020		2019
Timing of revenue recognition:
Products and services transferred at a point in time	$	1,570	$	4,859
Services transferred over time		442		674
	$	2,012	$	5,533

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4. EARNINGS PER SHARE (Tables)

3 Months Ended

Aug. 31, 2020

Earnings Per Share [Abstract]

Earnings per share

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

	Three Months Ended
	August 31,
	2020		2019
Numerator: Net income (loss)	$	107	$	(413	)
Denominator for basic net income (loss) per share:
Weighted average shares outstanding		23,248		22,708
Shares used in basic net income (loss) per share calculation		23,248		22,708
Effect of dilutive securities		207		—
Denominator for diluted net income (loss) per share		23,455		22,708
Basic net income (loss) per share	$	0.00	$	(0.02	)
Diluted net income (loss) per share	$	0.00	$	(0.02	)

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5. FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

3 Months Ended

Aug. 31, 2020

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 August 31, 2020 (in thousands):

	Balance as of
	August 31, 2020		Level 1		Level 2		Level 3
Money market funds	$	80	$	80	$	—	$	—
Assets	$	80	$	80	$	—	$	—

    The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of May 31, 2020 (in thousands):

	Balance as of
	May 31, 2020		Level 1		Level 2		Level 3
Money market funds	$	80	$	80	$	—	$	—
Assets	$	80	$	80	$	—	$	—

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7. INVENTORIES (Tables)

3 Months Ended

Aug. 31, 2020

Inventory Disclosure [Abstract]

Inventories

    Inventories are comprised of the following (in thousands):

	August 31,		May 31,
	2020		2020
Raw materials and sub-assemblies	$	5,571	$	5,055
Work in process		2,529		2,917
Finished goods		2		17
	$	8,102	$	7,989

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8. PRODUCT WARRANTIES (Tables)

3 Months Ended

Aug. 31, 2020

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 months ended August 31, 2020 and 2019 (in thousands):

	Three Months Ended
	August 31,
	2020			2019
Balance at the beginning of the period	$	246		$	154
Accruals for warranties issued during the period		79			62
Adjustments to previously existing warranty accruals		76			—
Consumption of reserves		(71	)		(24	)
Balance at the end of the period	$	330		$	192

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

3 Months Ended

Aug. 31, 2020

Customer Deposits And Deferred Revenue Short-term

Customer deposits and deferred revenue

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

	August 31,		May 31,
	2020		2020
Customer deposits	$	278	$	—
Deferred revenue		109		170
	$	387	$	170

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11. LEASES (Tables)

3 Months Ended

Aug. 31, 2020

Leases [Abstract]

Supplemental cash flow information related to leases

    The following table presents supplemental cash flow information related to the Company’s operating leases (in thousands):

	Three Months Ended
	August 31,
	2020		2019
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows from operating leases	$	190	$	182

Maturity of operating lease liabilities

    The following table presents the maturities of the Company’s operating lease liabilities as of August 31, 2020 (in thousands):

Fiscal year	Operating Leases
2021 (excluding the first three months of 2021)	$	575
2022		779
2023		795
2024		133
2025		—
Thereafter		—
Total future minimum operating lease payments		2,282
Less: imputed interest		179
Present value of operating lease liabilities	$	2,103

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14. STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Aug. 31, 2020

Share-based Payment Arrangement [Abstract]

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

    The following table summarizes the stock-based compensation expense for the three months ended August 31, 2020 and 2019 (in thousands):

	Three Months Ended
	August 31,
	2020		2019
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Cost of sales	$	16	$	19
Selling, general and administrative		205		130
Research and development		49		50
Net effect on net income (loss)	$	270	$	199

Fair value assumptions for option valuation model

    Fair Value. The fair value of the Company’s stock options granted to employees for the three months ended August 31, 2020 and 2019 were estimated using the following weighted average assumptions in the Black-Scholes option valuation model:

	Three Months Ended
	August 31,
	2020		2019
Expected term (in years)		6		5
Volatility		0.71		0.71
Risk-free interest rate		0.38%		1.88%
Weighted average grant date fair value	$	1.16	$	0.97

Stock option and RSU transactions

    The following tables summarize the Company’s stock option and RSU transactions during the three months ended August 31, 2020 (in thousands):

	Available
	Shares
Balance, May 31, 2020		1,650
Options granted		(200	)
RSUs granted		(196	)
Options cancelled		188
RSUs cancelled		2
Options expired		(125	)
Balance, August 31, 2020		1,319

Stock option transactions

    The following table summarizes the stock option transactions during the three months ended August 31, 2020 (in thousands, except per share data):

	Outstanding Options
				Weighted
	Number			Average		Aggregate
	of			Exercise		Intrinsic
	Shares			Price		Value
Balances, May 31, 2020	3,153		$	2.17	$	102
Options granted	200		$	1.86
Options cancelled	(188	)	$	2.18
Options exercised	(148	)	$	1.30
Balances, August 31, 2020	3,017		$	2.19	$	148
Options fully vested and expected to vest at August 31, 2020	2,981		$	2.19	$	145

Options outstanding

    The options outstanding and exercisable at August 31, 2020 were in the following exercise price ranges (in thousands, except per share data):

	Options Outstanding						Options Exercisable
	at August 31, 2020						at August 31, 2020
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
$1.22		75		6.54	$	1.22		8		6.54	$	1.22
$1.64-$1.86		1,105		5.47	$	1.70		546		4.72	$	1.68
$2.03-$2.46		1,162		3.49	$	2.21		846		2.92	$	2.19
$2.63-$2.81		464		1.04	$	2.70		462		1.03	$	2.70
$3.46-$3.93		211		3.90	$	3.86		171		3.91	$	3.85
$1.22-$3.93		3,017		3.94	$	2.19		2,033		3.07	$	2.31	$	59

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15. SEGMENT INFORMATION (Tables)

3 Months Ended

Aug. 31, 2020

Segment Reporting [Abstract]

Property and equipment by geographic region

    Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in thousands):

	August 31,		May 31,
	2020		2020
United States	$	621	$	662
Asia		1		1
Europe		—		—
	$	622	$	663

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3. REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Net sales	$ 2,012	$ 5,533
Systems
Net sales	801	2,934
Contactors
Net sales	627	1,650
Services
Net sales	584	949
Wafer-level
Net sales	1,559	4,826
Test During Burn-In
Net sales	$ 453	$ 707

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3. REVENUE (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Net sales	$ 2,012	$ 5,533
United States
Net sales	1,041	5,057
Asia
Net sales	969	338
Europe
Net sales	$ 2	$ 138

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3. REVENUE (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Net sales	$ 2,012	$ 5,533
Products and Services Transferred at a Point in Time
Net sales	1,570	4,859
Services Transferred Over Time
Net sales	$ 442	$ 674

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3. REVENUE (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	May 31, 2022	May 31, 2021	May 31, 2020
Revenue from Contract with Customer [Abstract]
Contract liabilities	$ 406			$ 192
Recognition of contract liabilities	79
Remaining performance obligations	$ 128
Remaining performance obligation revenue recognition		34.00%	66.00%

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4. EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Earnings Per Share [Abstract]
Numerator: Net income (loss)	$ 107	$ (413)
Denominator for basic net income (loss) per share: Weighted average shares outstanding (in thousands)	23,248	22,708
Shares used in basic net income (loss) per share calculation (in thousands)	23,248	22,708
Effect of dilutive securities (in thousands)	207	0
Denominator for diluted net income (loss) per share (in thousands)	23,455	22,708
Basic net income (loss) per share	$ .00	$ (.02)
Diluted net income (loss) per share	$ .00	$ (.02)

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4. EARNINGS PER SHARE (Details Narrative) - shares	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Employee Stock Purchase Plan
Options not included in the computation of diluted net income (loss) per share (in thousands)		297
Stock Options
Options not included in the computation of diluted net income (loss) per share (in thousands)	2,594	3,434
Restricted Stock Units
Options not included in the computation of diluted net income (loss) per share (in thousands)		20

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5. FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Assets
Investment securities	$ 80	$ 80
Level 1
Assets
Investment securities	80	80
Level 2
Assets
Investment securities	0	0
Level 3
Assets
Investment securities	0	0
Money Market Funds
Assets
Investment securities	80	80
Money Market Funds | Level 1
Assets
Investment securities	80	80
Money Market Funds | Level 2
Assets
Investment securities	0	0
Money Market Funds | Level 3
Assets
Investment securities	$ 0	$ 0

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5. FAIR VALUE OF FINANCIAL INSTRUMENTS (Details Narrative) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Fair Value Disclosures [Abstract]
Restricted cash representing a security deposit	$ 80	$ 80
Financial liabilities at fair value	0	$ 0
Transfers between Level 1 and Level 2 fair value measurements	$ 0

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6. ACCOUNTS RECEIVABLE, NET (Details Narrative) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]
Allowance for doubtful accounts customer trade receivables	$ 0	$ 0

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7. INVENTORIES (Details) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Inventory, Net [Abstract]
Raw materials and sub-assemblies	$ 5,571	$ 5,055
Work in process	2,529	2,917
Finished goods	2	17
Inventory	$ 8,102	$ 7,989	[1]

[1] The condensed consolidated balance sheet at May 31, 2020 has been derived from the audited consolidated financial statements at that date.

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8. PRODUCT WARRANTIES (Details) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at the beginning of the period	$ 246	$ 154
Accruals for warranties issued during the period	79	62
Adjustments to previously existing warranty accruals	76	0
Consumption of reserves	(71)	(24)
Balance at the end of the period	$ 330	$ 192

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8. PRODUCT WARRANTIES (Details Narrative)	3 Months Ended
	Aug. 31, 2020
Product Warranties Disclosures [Abstract]
Product warranties disclosures	The standard warranty period is one year for systems and ninety days for parts and services

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9. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM (Details) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Customer Deposits And Deferred Revenue Short-term
Customer deposits	$ 278	$ 0
Deferred revenue	109	170
Total	$ 387	$ 170

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11. LEASES (Details) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Cash paid for amounts included in measurement of operating lease liabilities:
Operating cash flows from operating leases	$ 190	$ 182

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11. LEASES (Details 1) $ in Thousands	Aug. 31, 2020 USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2021 (excluding the first three months of 2021)	$ 575
2022	779
2023	795
2024	133
2025	0
Thereafter	0
Total future minimum operating lease payments	2,282
Less: imputed interest	179
Present value of operating lease liabilities	$ 2,103

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11. LEASES (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Operating lease, weighted-average remaining lease term	2 years 10 months 24 days
Operating lease, weighted-average discount rate	5.49%
Operating lease, cost	$ 186	$ 183
Minimum
Operating lease term	1 month
Maximum
Operating lease term	3 years

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12. BORROWING AND FINANCING ARRANGEMENTS (Details Narrative) - Silicon Valley Bank $ in Thousands	3 Months Ended
	Aug. 31, 2020 USD ($)
Line of credit, maximum borrowing capacity	$ 4,000
Variable interest rate	The greater of (a) the prime rate plus an additional percentage of up to 1%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 4.75%.
Borrowing under revolving credit facility	$ 0
Balance available to borrow under the line of credit	$ 159

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13. LONG-TERM DEBT (Details Narrative) - Silicon Valley Bank $ in Thousands	Apr. 23, 2020 USD ($)
PPP loan	$ 1,679
Interest rate	1.00%

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14. STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Total stock-based compensation	$ 270	$ 199
Cost of Sales
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Total stock-based compensation	16	19
Selling, General and Administrative
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Total stock-based compensation	205	130
Research and Development
Stock-based compensation in the form of employee stock options, RSUs and ESPP purchase rights, included in:
Total stock-based compensation	$ 49	$ 50

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14. STOCK-BASED COMPENSATION (Details 1) - Stock Options - $ / shares	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Expected term (in years)	6 years	5 years
Volatility	71.00%	71.00%
Risk-free interest rate	0.38%	1.88%
Weighted average grant date fair value	$ 1.16	$ .97

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14. STOCK-BASED COMPENSATION (Details 2) - Stock Option and RSU Transactions	3 Months Ended
	Aug. 31, 2020 shares
Available shares, beginning (in thousands)	1,650
Options granted (in thousands)	(200)
RSUs granted (in thousands)	(196)
Options cancelled (in thousands)	188
RSUs cancelled (in thousands)	2
Options expired (in thousands)	(125)
Available shares, ending (in thousands)	1,319

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14. STOCK-BASED COMPENSATION (Details 3) - Outstanding Options Stock Option Transactions $ / shares in Units, $ in Thousands	3 Months Ended
	Aug. 31, 2020 USD ($) $ / shares shares
Options outstanding, beginning (in thousands) | shares	3,153
Options granted (in thousands) | shares	200
Options cancelled (in thousands) | shares	(188)
Options exercised (in thousand) | shares	(148)
Options outstanding, ending (in thousands) | shares	3,017
Options fully vested and expected to vest (in thousands) | shares	2,981
Weighted average exercise price outstanding, beginning | $ / shares	$ 2.17
Weighted average exercise price granted | $ / shares	1.86
Weighted average exercise price cancelled | $ / shares	2.18
Weighted average exercise price exercised | $ / shares	1.30
Weighted average exercise price outstanding, ending | $ / shares	2.19
Weighted average exercise price for options fully vested and expected to vest, ending | $ / shares	$ 2.19
Aggregate intrinsic value, beginning balance | $	$ 102
Aggregate intrinsic value, ending balance | $	148
Aggregate intrinsic value for options fully vested and expected to vest, ending | $	$ 145

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14. STOCK-BASED COMPENSATION (Details 4) $ / shares in Units, $ in Thousands	3 Months Ended
	Aug. 31, 2020 USD ($) $ / shares shares
$1.22
Options outstanding, ending (in thousands) | shares	75
Weighted average remaining contractual life (years) options outstanding	6 years 6 months 14 days
Weighted average exercise price outstanding, ending | $ / shares	$ 1.22
Options exercisable shares, ending (in thousands) | shares	8
Weighted average remaining contractual life (years) options exercisable	6 years 6 months 14 days
Weighted average exercise price for options exercisable, ending | $ / shares	$ 1.22
$1.64-$1.86
Options outstanding, ending (in thousands) | shares	1,105
Weighted average remaining contractual life (years) options outstanding	5 years 5 months 19 days
Weighted average exercise price outstanding, ending | $ / shares	$ 1.70
Options exercisable shares, ending (in thousands) | shares	546
Weighted average remaining contractual life (years) options exercisable	4 years 8 months 19 days
Weighted average exercise price for options exercisable, ending | $ / shares	$ 1.68
$2.03-$2.46
Options outstanding, ending (in thousands) | shares	1,162
Weighted average remaining contractual life (years) options outstanding	3 years 5 months 26 days
Weighted average exercise price outstanding, ending | $ / shares	$ 2.21
Options exercisable shares, ending (in thousands) | shares	846
Weighted average remaining contractual life (years) options exercisable	2 years 11 months 1 day
Weighted average exercise price for options exercisable, ending | $ / shares	$ 2.19
$2.63-$2.81
Options outstanding, ending (in thousands) | shares	464
Weighted average remaining contractual life (years) options outstanding	1 year 14 days
Weighted average exercise price outstanding, ending | $ / shares	$ 2.70
Options exercisable shares, ending (in thousands) | shares	462
Weighted average remaining contractual life (years) options exercisable	1 year 11 days
Weighted average exercise price for options exercisable, ending | $ / shares	$ 2.70
$3.46-$3.93
Options outstanding, ending (in thousands) | shares	211
Weighted average remaining contractual life (years) options outstanding	3 years 10 months 24 days
Weighted average exercise price outstanding, ending | $ / shares	$ 3.86
Options exercisable shares, ending (in thousands) | shares	171
Weighted average remaining contractual life (years) options exercisable	3 years 10 months 28 days
Weighted average exercise price for options exercisable, ending | $ / shares	$ 3.85
$1.22-$3.93
Options outstanding, ending (in thousands) | shares	3,017
Weighted average remaining contractual life (years) options outstanding	3 years 11 months 8 days
Weighted average exercise price outstanding, ending | $ / shares	$ 2.19
Options exercisable shares, ending (in thousands) | shares	2,033
Weighted average remaining contractual life (years) options exercisable	3 years 25 days
Weighted average exercise price for options exercisable, ending | $ / shares	$ 2.31
Aggregate intrinsic value for options exercisable | $	$ 59

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14. STOCK-BASED COMPENSATION (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Stock-based compensation costs capitalized as part of inventory	$ 0	$ 0
Intrinsic value of options exercised	$ 92	17
Weighted average remaining contractual life of the options exercisable and expected to be exercisable	3 years 11 months 5 days
Stock Option and RSU Transactions
Stock-based compensation expense related to stock options and RSUs	$ 245	$ 150
Restricted stock units granted (in thousands)	196
Market value on the date of the grant	$ 1.86
Restricted stock units vested (in thousands)	3	3
Restricted stock units unvested (in thousands)	166	20
Restricted stock units unvested intrinsic value	$ 296	$ 26
2016 Equity Incentive Plan
Unrecognized stock-based compensation	1,434
Estimated forfeitures of unvested stock based awards, amount	$ 4
Weighted average period for recognition of costs	2 years 10 months 24 days
Employee Stock Purchase Plan
Weighted average period for recognition of costs	8 months 12 days
Stock-based compensation related to the ESPP	$ 25	$ 49
Compensation cost related to purchase rights under the ESPP but not yet recognized	$ 34
ESPP purchase right granted (in thousands)	0	0
ESPP shares issued (in thousands)	0	0
ESPP shares available for issuance (in thousands)	233

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15. SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Property and equipment, net	$ 622	$ 663	[1]
United States
Property and equipment, net	621	662
Asia
Property and equipment, net	1	1
Europe
Property and equipment, net	$ 0	$ 0

[1] The condensed consolidated balance sheet at May 31, 2020 has been derived from the audited consolidated financial statements at that date.

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15. SEGMENT INFORMATION (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	May 31, 2020	[1]
Operating lease right-of-use assets	$ 1,952		$ 2,107
Five Largest Customers
Customers accounted for 10% or more of total revenues	81.00%	93.00%
Customer A
Customers accounted for 10% or more of total revenues	21.00%	54.00%
Customer B
Customers accounted for 10% or more of total revenues	19.00%	22.00%
Customer C
Customers accounted for 10% or more of total revenues	17.00%
Customer D
Customers accounted for 10% or more of total revenues	15.00%

[1] The condensed consolidated balance sheet at May 31, 2020 has been derived from the audited consolidated financial statements at that date.

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16. DISSOLUTION OF AEHR TEST SYSTEMS JAPAN (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Dissolution of Aehr Test Systems Japan
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Japan	$ (2,401)	$ 0
Net gain from dissolution of Aehr Test Systems Japan	(2,186)	0
Income tax benefit related to dissolution of Aehr Test Systems Japan	$ (215)	$ 0