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 February 29, 2024

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)

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

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

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 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, indicated 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 ☒

There were 28,914,729 shares of the Registrant’s Common Stock outstanding as of April 1, 2024.

TABLE OF CONTENTS

	Page
PART I  FINANCIAL INFORMATION
Item 1. Condensed Consolidated Financial Statements (Unaudited)	3
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
Item 3. Quantitative and Qualitative Disclosures About Market Risk	24
Item 4. Controls and Procedures	24
PART II  OTHER INFORMATION
Item 1. Legal Proceedings	25
Item 1A. Risk Factors	25
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	25
Item 3. Defaults Upon Senior Securities	25
Item 4. Mine Safety Disclosures	25
Item 5. Other Information	25
Item 6. Exhibits	26
SIGNATURES	27

2

PART I — FINANCIAL INFORMATION

Item 1. Financial Statements

AEHR TEST SYSTEMS
CONDENSED CONSOLIDATED BALANCE SHEETS
(Unaudited)
	February 29,			May 31,
(In thousands, except par value)	2024			2023
ASSETS
Current assets:
Cash and cash equivalents	$	47,581		$	30,054
Short-term investments		-			17,853
Accounts receivable, net		5,468			16,594
Inventories		38,085			23,908
Prepaid expenses and other current assets		1,215			621
Total current assets		92,349			89,030
Property and equipment, net		3,150			2,759
Operating lease right-of-use assets, net		5,863			6,123
Other non-current assets		234			231
Total assets	$	101,596		$	98,143
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	4,979		$	9,206
Accrued expenses		3,287			4,143
Operating lease liabilities, short-term		428			137
Deferred revenue, short-term		486			2,822
Total current liabilities		9,180			16,308
Operating lease liabilities, long-term		5,878			6,163
Deferred revenue, long-term		-			31
Other long-term liabilities		41			41
Total liabilities		15,099			22,543
Commitments and contingencies (Note 6)
Shareholders’ equity:
Preferred stock, $0.01 par value: Authorized: 10,000 shares;
Issued and outstanding: none		-			-
Common stock, $0.01 par value: Authorized: 75,000 shares;
Issued and outstanding: 28,906 shares and 28,539 shares at February 29, 2024 and May 31, 2023, respectively		289			285
Additional paid-in-capital		129,366			127,776
Accumulated other comprehensive loss		(144	)		(155	)
Accumulated deficit		(43,014	)		(52,306	)
Total shareholders' equity		86,497			75,600
Total liabilities and shareholders’ equity	$	101,596		$	98,143

 The Condensed Consolidated Balance Sheet as of May 31, 2023 has been derived from the audited consolidated financial statements at that date.

See accompanying Notes to Condensed Consolidated Financial Statements (unaudited)

3

AEHR TEST SYSTEMS
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(Unaudited)
	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,		February 28,
(In thousands, except per share data)	2024			2023			2024		2023
Revenue:
Product	$	6,730		$	16,120		$	45,924	$	39,715
Services		833			1,086			3,694		2,977
Total revenue		7,563			17,206			49,618		42,692
Cost of revenue:
Product		3,948			7,728			23,574		19,739
Services		459			603			1,949		1,686
Total cost of revenue		4,407			8,331			25,523		21,425
Gross profit		3,156			8,875			24,095		21,267
Operating expenses:
Research and development		2,139			1,832			6,568		4,881
Selling, general and administrative		3,063			3,250			9,990		8,650
Total operating expenses		5,202			5,082			16,558		13,531
Income (loss) from operations		(2,046	)		3,793			7,537		7,736
Interest income, net		584			374			1,796		758
Other income (expense), net		(2	)		(18	)		2		1
Income (loss) before provision for income taxes		(1,464	)		4,149			9,335		8,495
Provision for income taxes		7			17			43		49
Net income (loss)	$	(1,471	)	$	4,132		$	9,292	$	8,446
Net income (loss) per share:
Basic	$	(0.05	)	$	0.15		$	0.32	$	0.31
Diluted	$	(0.05	)	$	0.14		$	0.31	$	0.29
Shares used in per share calculations:
Basic		28,866			27,893			28,773		27,571
Diluted		28,866			29,373			29,670		29,080

See accompanying Notes to Condensed Consolidated Financial Statements (unaudited)

4

AEHR TEST SYSTEMS
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(Unaudited)
	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,			February 28,
(In thousands)	2024			2023			2024			2023
Net income (loss)	$	(1,471	)	$	4,132		$	9,292		$	8,446
Other comprehensive income (loss), net of tax:
Net change in cumulative translation adjustment		(10	)		9			(6	)		(35	)
Net change in unrealized gain (loss) on investments		-			(16	)		17			(22	)
Comprehensive income (loss)	$	(1,481	)	$	4,125		$	9,303		$	8,389

See accompanying Notes to Condensed Consolidated Financial Statements (unaudited)

5

AEHR TEST SYSTEMS
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
(Unaudited)
									Accumulated
						Additional			Other						Total
	Common Stock					Paid-in			Comprehensive			Accumulated			Shareholders'
(In thousands)	Shares			Amount		Capital			Income (loss)			Deficit			Equity
Three Months Ended February 29, 2024
Balances, November 30, 2023		28,826		$	288	$	128,543		$	(134	)	$	(41,543	)	$	87,154
Issuance of common stock under employee plans		81			1		177			-			-			178
Shares repurchased for tax withholdings on vesting of restricted stock units		(1	)		-		(20	)		-			-			(20	)
Stock-based compensation		-			-		666			-			-			666
Net loss		-			-		-			-			(1,471	)		(1,471	)
Foreign currency translation adjustment		-			-		-			(10	)		-			(10	)
Balances, February 29, 2024		28,906		$	289	$	129,366		$	(144	)	$	(43,014	)	$	86,497

									Accumulated
						Additional			Other						Total
	Common Stock					Paid-in			Comprehensive			Accumulated			Shareholders'
(In thousands)	Shares			Amount		Capital			Income (loss)			Deficit			Equity
Nine Months Ended February 29, 2024
Balances, May 31, 2023		28,539		$	285	$	127,776		$	(155	)	$	(52,306	)	$	75,600
Issuance of common stock under employee plans		402			4		1,266			-			-			1,270
Issuance cost of common stock offering		-			-		(72	)		-			-			(72	)
Shares repurchased for tax withholdings on vesting of restricted stock units		(35	)		-		(1,480	)		-			-			(1,480	)
Stock-based compensation		-			-		1,876			-			-			1,876
Net income		-			-		-			-			9,292			9,292
Foreign currency translation adjustment		-			-		-			(6	)		-			(6	)
Net unrealized gains on investments		-			-		-			17			-			17
Balances, February 29, 2024		28,906		$	289	$	129,366		$	(144	)	$	(43,014	)	$	86,497

See accompanying Notes to Condensed Consolidated Financial Statements (unaudited)

6

AEHR TEST SYSTEMS
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
(Unaudited)
									Accumulated
						Additional			Other						Total
	Common Stock					Paid-in			Comprehensive			Accumulated			Shareholders'
(In thousands)	Shares			Amount		Capital			Income (loss)			Deficit			Equity
Three Months Ended February 28, 2023
Balances, November 30, 2022		27,732		$	277	$	119,094		$	(155	)	$	(62,549	)	$	56,667
Issuance of common stock under employee plans		395			4		849			-			-			853
Shares repurchased for tax withholdings on vesting of restricted stock units		(16	)		-		(464	)		-			-			(464	)
Proceeds from public offering, net of issuance costs		209			2		6,851			-			-			6,853
Stock-based compensation		-			-		600			-						600
Net income		-			-		-			-			4,132			4,132
Net unrealized loss on investments		-			-		-			(16	)		-			(16	)
Foreign currency translation adjustment		-			-		-			9			-			9
Balances, February 28, 2023		28,320		$	283	$	126,930		$	(162	)	$	(58,417	)	$	68,634

										Accumulated
							Additional			Other						Total
	Common Stock						Paid-in			Comprehensive			Accumulated			Shareholders'
(In thousands)	Shares			Amount			Capital			Income (loss)			Deficit			Equity
Nine Months Ended February 28, 2023
Balances, May 31, 2022		27,120		$	271		$	117,686		$	(105	)	$	(66,863	)	$	50,989
Issuance of common stock under employee plans		1,156			11			1,954			-			-			1,965
Shares repurchased for tax withholdings on vesting of restricted stock units		(165	)		(1	)		(1,679	)		-			-			(1,680	)
Proceeds from public offering, net of issuance costs		209			2			6,851			-			-			6,853
Stock-based compensation		-			-			2,118			-			-			2,118
Net income		-			-			-			-			8,446			8,446
Net unrealized loss on investments		-			-			-			(22	)		-			(22	)
Foreign currency translation adjustment		-			-			-			(35	)		-			(35	)
Balances, February 28, 2023		28,320		$	283		$	126,930		$	(162	)	$	(58,417	)	$	68,634

See accompanying Notes to Condensed Consolidated Financial Statements (unaudited) 

7

AEHR TEST SYSTEMS
Condensed Consolidated Statements of Cash Flows
(Unaudited)
	Nine Months Ended
	February 29,			February 28,
(In thousands)	2024			2023
Cash flows from operating activities:
Net income	$	9,292		$	8,446
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense		1,744			2,095
Depreciation and amortization		469			337
Accretion of investment discount		(130	)		(305	)
Amortization of operating lease right-of-use assets		522			479
Provision for doubtful accounts		-			24
Changes in operating assets and liabilities:
Accounts receivable		11,130			1,414
Inventories		(14,182	)		(6,783	)
Prepaid expenses and other current assets		(600	)		(167	)
Accounts payable		(4,232	)		822
Accrued expenses		(874	)		(126	)
Deferred revenue		(2,368	)		(1,633	)
Operating lease liabilities		(257	)		(469	)
Income taxes payable		18			9
Net cash provided by operating activities		532			4,143
Cash flows from investing activities:
Purchases of property and equipment		(703	)		(178	)
Proceeds from maturities of investments		18,000			8,000
Purchases of investments		-			(33,294	)
Net cash provided by (used in) investing activities		17,297			(25,472	)
Cash flows from financing activities:
Proceeds from issuance of common stock under employee plans		1,270			1,965
Shares repurchased for tax withholdings on vesting of restricted stock units		(1,480	)		(1,680	)
Proceeds from issuance of common stock from public offering, net of issuance costs		(72	)		6,853
Net cash provided by (used in) financing activities		(282	)		7,138
Effect of exchange rate changes on cash, cash equivalents and restricted cash		(20	)		(35	)
Net increase (decrease) in cash, cash equivalents and restricted cash		17,527			(14,226	)
Cash, cash equivalents and restricted cash, beginning of period (1)		30,204			31,564
Cash, cash equivalents and restricted cash, end of period (1)	$	47,731		$	17,338

(1) Includes restricted cash in other assets.

See accompanying Notes to Condensed Consolidated Financial Statements (unaudited)

8

AEHR TEST SYSTEMS

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

Organization – Aehr Test Systems (the “Company”) was incorporated in California in May 1977 and develops and manufactures test and burn-in equipment used in the semiconductor industry. The Company’s principal products are the FOX-XP, FOX-NP, and FOX-CP wafer contact and singulated die/module parallel test and burn-in systems, the WaferPak full wafer contactor, the DiePak carrier, the WaferPak aligner, the DiePak autoloader, and test fixtures.

Basis of Presentation – The unaudited Condensed Consolidated Financial Statements included in this quarterly report on Form 10-Q include the accounts of the Company and its wholly-owned subsidiaries and have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial reporting and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim reporting. Accordingly, the unaudited Condensed Consolidated Financial Statements do not include certain information and footnote disclosures normally included in the annual consolidated financial statements. 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, 2023 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 should be read in conjunction with the Consolidated Financial Statements contained in the Company's Annual Report on Form 10-K for the year ended May 31, 2023.

Principles of Consolidation – The Company’s Condensed Consolidated Financial Statements include the accounts of the Company and its wholly-owned subsidiaries and all significant intercompany accounts and transactions have been eliminated upon consolidation.

Critical Accounting Policies and use of Estimates – The Company’s significant accounting policies are disclosed in the Company’s Annual Report on Form 10-K for the year ended May 31, 2023. There have been no significant changes in the Company’s significant accounting policies during the three and nine months ended February 29, 2024. 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, the 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. Significant estimates in these Condensed Consolidated Financial Statements include valuation of inventory at the lower of cost or net realizable value and warranty reserves. Actual results could differ from those estimates.

Reclassifications - Certain reclassifications have been made to the prior period Condensed Consolidated Financial Statements to conform to the current period presentation. The reclassifications had no impact on net income, total assets, total liabilities, or shareholders’ equity.

Concentration of Credit Risk – Financial instruments which subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. The Company performs credit evaluations of its customers’ financial condition and generally requires no collateral. The Company had revenues from individual customers in excess of 10% of total revenues as follows: 

	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,			February 28,
	2024			2023			2024			2023
Customer A		59.6	%		82.5	%		65.8	%		77.5	%
Customer B		19.3	%		11.6	%	*				15.7	%
Customer C	*			*				17.2	%	*

 * Amount was less than 10% of total revenue

9

The Company had gross accounts receivable from individual customers in excess of 10% of gross accounts receivable as follows: 

	February 29,			May 31,
	2024			2023
Customer A		70.2	%		81.6	%
Customer B		18.0	%	*
Customer C	*				16.5	%

* Amount was less than 10% of total gross accounts receivable

Recent Accounting Pronouncements — The Company's accounts receivable are recorded at invoiced amounts less allowance for any credit losses. According to the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13 that the Company adopted on June 1, 2023, the Company recognizes credit losses based on forward-looking current expected credit losses ("CECL"). The Company makes estimates of expected credit losses based upon its assessment of various factors, including the age of accounts receivable balances, credit quality of its customers, current economic conditions, reasonable and supportable forecasts of future economic conditions, and other factors that may affect its ability to collect from customers. The allowance for credit losses is recognized in the condensed consolidated statements of operations. The uncollectible accounts receivable are written off in the period in which a determination is made that all commercially reasonable means of recovering them have been exhausted. The total allowance for credit losses was $0 at both February 29, 2024 and May 31, 2023, and there was no write-off of accounts receivable for the periods presented. The adoption of ASU 2016-13 did not have a material impact on the Company’s Condensed Consolidated Financial Statements.

Recent Accounting Pronouncements Not Yet Adopted

Improvements to Reportable Segment Disclosures: In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (ASU 2023-07), which requires disclosure of incremental segment information on an annual and interim basis. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024 on a retrospective basis. The Company is currently evaluating the effect of this pronouncement on its disclosures.

Improvements to Income Tax Disclosures: In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which expands the disclosures required for income taxes. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendment should be applied on a prospective basis while retrospective application is permitted. The Company is currently evaluating the effect of this pronouncement on its disclosures.

2. FAIR VALUE OF FINANCIAL INSTRUMENTS

Fair Value of Measurements — The Company measures its cash equivalents and money market funds at fair value on a recurring basis. Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. Assets and liabilities recorded at fair value are measured and classified in accordance with a three-tier fair value hierarchy based on the observability of the inputs available in the market used to measure fair value:

Level 1 — Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 — Inputs that are based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant inputs are observable in the market or can be derived from observable market data. Where applicable, these models project future cash flows and discount the future amounts to a present value using market-based observable inputs including interest rate curves, foreign exchange rates, and credit ratings.

Level 3 — Unobservable inputs that are supported by little or no market activities.

The following table represents the Company’s assets measured at fair value on a recurring basis as of February 29, 2024, and the basis for that measurement:

10

	Balance as of
(In thousands)	February 29, 2024		Level 1		Level 2		Level 3
Money market funds	$	44,189	$	44,189	$	-	$	-
Total	$	44,189	$	44,189	$	-	$	-

The following table represents the Company’s assets measured at fair value on a recurring basis as of May 31, 2023, and the basis for that measurement:

	Balance as of
(In thousands)	May 31, 2023		Level 1		Level 2		Level 3
Money market funds	$	27,022	$	27,022	$	-	$	-
U. S. treasury securities		17,853		17,853		-		-
Total	$	44,875	$	44,875	$	-	$	-

Included in money market funds as of February 29, 2024 and May 31, 2023 is $150,000 restricted cash representing a security deposit for the Company’s United States manufacturing and office space lease. There were no financial liabilities measured at fair value as of February 29, 2024 and May 31, 2023. There were no transfers between Level 1 and Level 2 fair value measurements during the three and nine months ended February 29, 2024. The carrying amounts of financial instruments, including cash equivalents, accounts receivable, accounts payable and certain other accrued liabilities, approximate fair value due to their short maturities.

The following table summarizes the Company’s cash, cash equivalents and investments by security type as of February 29, 2024 and May 31, 2023, respectively:

			Gross
Balances as of February 29, 2024			Unrealized		Estimated
(In thousands)	Cost		Loss		Fair Value
Cash	$	3,542	$	-	$	3,542
Cash equivalents:
Money market funds	$	44,039	$	-	$	44,039
Total cash and cash equivalents	$	47,581	$	-	$	47,581
Long-term investments:
Money market funds	$	150	$	-	$	150
Total cash, cash equivalents and investments	$	47,731	$	-	$	47,731

			Gross
Balances as of May 31, 2023			Unrealized			Estimated
(In thousands)	Cost		Loss			Fair Value
Cash	$	3,182	$	-		$	3,182
Cash equivalents:
Money market funds	$	26,872	$	-		$	26,872
Total cash and cash equivalents	$	30,054	$	-		$	30,054
Short term investments:
U. S. treasury securities	$	17,870	$	(17	)	$	17,853
Long-term investments:
Money market funds	$	150	$	-		$	150
Total cash, cash equivalents and investments	$	48,074	$	(17	)	$	48,057

11

Long-term investments are included in other assets on the accompanying Condensed Consolidated Balance Sheets. Unrealized gains and temporary losses on investments classified as available-for-sale debt securities are included within accumulated other comprehensive loss, net of any related tax effect. Upon realization, those amounts are reclassified from accumulated other comprehensive loss to results of operations.

3. BALANCE SHEET INFORMATION

Inventories

Inventories consisted of the following:

	February 29,		May 31,
(In thousands)	2024		2023
Raw materials and sub-assemblies	$	24,770	$	15,953
Work in process		11,080		5,764
Finished goods		2,235		2,191
	$	38,085	$	23,908

Property and equipment

Property and equipment, net consisted of the following:

	Useful life	February 29,			May 31,
(In thousands)	(in years)	2024			2023
Leasehold improvements	*	$	1,643		$	1,310
Machinery and equipment	3 - 5		5,775			5,445
Test equipment	4 - 5		3,030			2,998
Furniture and fixtures	2 - 5		717			706
			11,165			10,459
Less: accumulated depreciation and amortization			(8,015	)		(7,700	)
		$	3,150		$	2,759

* Lesser of estimated useful life or lease term.

Product warranties

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

The following is a summary of changes in the Company's liability for product warranties during the three and nine months ended February 29, 2024 and February 28, 2023:

	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,			February 28,
(In thousands)	2024			2023			2024			2023
Balance at the beginning of the period	$	221		$	311		$	267		$	410
Accruals for warranties issued during the period		117			84			344			207
Adjustments to previously existing warranty accruals		-			-			-			61
Consumption of reserves		(123	)		(107	)		(396	)		(390	)
Balance at the end of the period	$	215		$	288		$	215		$	288

The accrued warranty balance is included in accrued expenses on the accompanying Condensed Consolidated Balance Sheets.

12

Deferred revenue

Deferred revenue, short-term consisted of the following:

	February 29,		May 31,
(In thousands)	2024		2023
Customer deposits	$	418	$	2,690
Deferred revenue		68		132
	$	486	$	2,822

4. INCOME TAX  

The Company is subject to U.S federal and state and foreign income taxes as a corporation. The Company’s tax provision and the resulting effective tax rate for the interim period is determined based upon its estimated annual effective tax rate adjusted for the effect of discrete items arising in that quarter. The Company recorded a provision for income taxes of $7,000 and $43,000 for the three and nine months ended February 29, 2024, respectively, which consisted primarily of foreign withholding taxes and foreign income taxes. The Company recorded a provision for income taxes of $17,000 and $49,000 for the three and nine months ended February 28, 2023, respectively, which consisted primarily of foreign withholding taxes and foreign 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 was more likely than not that certain deferred tax assets would not be realized. The Company continues to reassess the need for a valuation allowance on a quarterly basis.

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 recognizes interest and penalties related to unrecognized tax benefits as a component of income taxes.

5. BORROWING 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 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.

13

On January 14, 2021, the Company entered into the First Amendment to Loan and Security Agreement (the “Amendment”) with SVB. The Amendment, among other things, extended the Revolving Line Maturity Date to July 14, 2021; provided, however, that if the Company achieved specified operating metrics on a consolidated basis on or prior to May 31, 2021 the Amended Revolving Line Maturity Date would be extended to January 13, 2022.

On January 11, 2022, the Company entered into the Second Amendment to the Loan and Security Agreement (the “Second Amendment”) with SVB. The Second Amendment, among other things, (A) increased the available amount of the line up to the lesser of (i) $10 million or (ii) the available amount under the borrowing base, under a revolving line of credit, (B) allowed for borrowing up to $3 million of the available balance based upon eligible customer purchase orders, (C) reduced the interest rate for account advances under the line to the greater of (a) prime rate plus an additional percentage up to 1.0%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 3.25%, reduces the interest rate for purchase order advances under the line to the greater of (a) prime rate plus an additional percentage up to 1.5%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 3.75%, and (D) extended the maturity date to January 13, 2023. 

On January 10, 2023, the Company entered into the Third Amendment to the Loan and Security Agreement (the “Third Amendment”) with SVB. The Third Amendment, among other things, extends the Revolving Line Maturity Date to January 13, 2024, provided, however, that (i) if the Company submits a fiscal year 2024 plan of record that is generally acceptable to SVB, and (ii) the minimum net liquidity at the end of November 30, 2023 is at least $20.0 million, the Amended Revolving Line Maturity Date would be extended to January 13, 2025.

The Company terminated the revolving line on January 4, 2024.

6. COMMITMENTS AND CONTINGENCIES

Purchase Obligations

The Company has purchase obligations to certain suppliers. In some cases, the products the Company purchases are unique and have provisions against cancellation of the order.

Contingencies

The Company may, from time to time, be involved in legal proceedings arising in the ordinary course of business. While there can be no assurances as to the ultimate outcome of any litigation involving the Company, management does not believe any pending legal proceedings will result in judgment or settlement that will have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows.

In the normal course of business to facilitate sales of its products, the Company indemnifies other parties, including customers, with respect to certain matters, for example, including against losses arising from a breach of representations or covenants, or from intellectual property infringement or other claims. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. In addition, the Company has entered into indemnification agreements with its officers and directors, and the Company’s bylaws contain similar indemnification obligations to the Company’s agents.

It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, payments made by the Company under these agreements have not had a material impact on the Company’s operating results, financial position or cash flow.

7. SHAREHOLDERS’ EQUITY

On August 25, 2021, the Board of Directors authorized management to take actions necessary for the execution of a $75 million shelf registration. A Registration Statement on Form S-3 was filed with the SEC on September 3, 2021. A Prospectus Supplement for an "At the Market" ("ATM") sale of $25 million of common stock was subsequently filed on September 17, 2021. On October 8, 2021, the Company executed the ATM offering by selling 1,696,729 shares of common stock at an average selling price of $14.73 per share. The gross proceeds to the Company were $25.0 million, before commission fees of $0.7 million and offering expenses of $0.3 million. Another Prospectus Supplement for an ATM sale of $25 million of common stock was subsequently filed on February 8, 2023. The Company partially executed the ATM offering by selling 208,917 shares of common stock at an average selling price of $34.78 per share. The gross proceeds to the Company during the quarter ended February 28, 2023 were $7.3 million, before commissions of $0.2 million and offering expenses of $0.2 million. As of February 29, 2024, the remaining amount of the ATM offering was $17.7 million.

8. ACCUMULATED OTHER COMPREHENSIVE LOSS

Changes in the components of accumulated other comprehensive loss, net of tax, were as follows (in thousands):

	Cumulative			Unrealized loss
(In thousands)	translation adjustment			on investments, net			Total
Balance as of May 31, 2023	$	(138	)	$	(17	)	$	(155	)
Other comprehensive income (loss) before reclassifications		(6	)		17			11
Balance as of February 29,  2024	$	(144	)	$	-		$	(144	)

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9. 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, 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 and evidenced by transfer of title and risk of loss to the customer. Revenue from services is recognized over time as the customer receives the benefit 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.

The Company sells its products primarily through a direct sales force. In certain international markets, the Company sells its products through independent distributors.

Disaggregation of revenue

The following presents information about the Company’s net revenues in different geographic areas, which are based upon ship-to locations, and by product category:

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Asia	$	5,167	$	14,849	$	43,320	$	34,873
United States		1,640		2,343		3,105		7,761
Europe		756		14		3,193		58
	$	7,563	$	17,206	$	49,618	$	42,692

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Systems	$	1,971	$	9,821	$	20,750	$	26,315
Contactors		4,759		6,299		25,174		13,400
Services		833		1,086		3,694		2,977
	$	7,563	$	17,206	$	49,618	$	42,692

15

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

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Timing of revenue recognition:
Products and services transferred at a point in time	$	7,240	$	16,863	$	48,225	$	41,523
Services transferred over time		323		343		1,393		1,169
	$	7,563	$	17,206	$	49,618	$	42,692

Contract balances   

Accounts receivable are recognized in the period the Company delivers goods or provides services and when the Company’s right to consideration is unconditional.  Contract assets include unbilled receivables which represent revenues that are earned in advance of scheduled billings to customers. These amounts are primarily related to product sales where transfer of control has occurred but the Company has not yet invoiced. As of February 29, 2024, unbilled receivables were $345,000 and were included in prepaid expenses and other current assets on the accompanying Condensed Consolidated Balance Sheets. Contract assets were not significant as of May 31, 2023.

Contract liabilities include payments received in advance of performance under a contract and are satisfied as the associated revenue is recognized. Contract liabilities as of February 29, 2024 and May 31, 2023 were $486,000 and $2,853,000, respectively, and were included in deferred revenue, short-term and deferred revenue, long-term on the accompanying Condensed Consolidated Balance Sheets. During the three and nine months ended February 29, 2024, the Company recognized $31,000 and $2,802,000 in revenue, respectively, which were included in contract liabilities as of May 31, 2023.

Remaining performance obligations

On February 29, 2024, the Company had $68,000 of remaining performance obligations, which were comprised of service contracts and extended warranty contracts not yet delivered. The Company expects to recognize approximately 30.2% of its remaining performance obligations as revenue in the remainder of fiscal 2024, and an additional 69.8% in fiscal 2025. The foregoing excludes the value of other remaining performance obligations, as they have original durations of one year or less and 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 expenses 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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10. STOCK-BASED COMPENSATION

Stock-based compensation expense consists of expenses for stock options, restricted stock units (“RSUs”), performance RSUs (“PRSUs”), restricted shares, performance restricted shares and employee stock purchase plan (“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, PRSUs, restricted shares and performance restricted shares, stock-based compensation expense is based on the fair value of the Company’s common stock at the grant date and is recognized as expense over the employee’s requisite service period. All of the Company’s stock-based compensation is accounted for as equity instruments. See Note 13 in the Company’s Annual Report on Form 10-K for fiscal 2023 filed on August 28, 2023 for further information regarding the 2016 Equity Incentive Plan and the ESPP. On October 23, 2023, the shareholders of the Company approved the 2023 Equity Incentive Plan and on October 27, 2023, the Company filed the Form S-8 to issue awards during this quarter onwards from a pool of 1,500,000 shares. Full value awards, which are equity awards other than options, stock appreciation rights or other awards that are based solely on an increase in value of the shares following the grant date, when granted or forfeited will be counted as the same number of common stock shares added or deducted to the remaining available shares for issuance under the 2023 Equity Incentive Plan. 

The following table summarizes the stock-based compensation expense for the three and nine months ended February 29, 2024 and February 28, 2023:

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Cost of sales	$	58	$	75	$	222	$	252
Research and development		148		158		440		513
Selling, general and administrative		377		359		1,081		1,330
	$	583	$	592	$	1,743	$	2,095

Stock-based compensation expense totaling $252,000 and $120,000 was capitalized as part of inventory as of February 29, 2024 and as of May 31, 2023, respectively.

The Company’s nonvested RSU, PRSU and restricted shares activities during the three and nine months ended February 29, 2024 were as follows:

				Weighted
				Average Grant
				Date Fair
	Shares			Value
	(in thousands)			Per Share
Unvested, May 31, 2023		345		$	6.40
Granted		-
Vested		(77	)		7.16
Forfeited		(52	)		5.79
Unvested, August 31, 2023		216		$	6.27
Granted		203			31.51
Vested		(28	)		8.02
Forfeited		(1	)		29.79
Unvested, November 30, 2023		390		$	19.28
Granted		1			22.57
Vested		(32	)		12.42
Forfeited		(6	)		6.21
Unvested, February 29, 2024		353		$	20.16

Under the ESPP, the Company issued 24,000 and 109,000 shares, respectively, during the nine months ended February 29, 2024 and February 28, 2023. As of February 29, 2024 and February 28, 2023, ESPP shares available for issuance totaled 373,000 and 499,000, respectively.

11. NET INCOME (LOSS) PER SHARE

Basic net income (loss) per share is determined using the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is determined using the weighted average number of common shares and potential common shares (representing the hypothetical number of incremental shares issuable under the assumed exercise of outstanding stock options, and vesting of outstanding RSUs and ESPP shares) during the period using the treasury stock method. The calculation of dilutive shares outstanding excludes securities that would have an antidilutive effect on net income (loss) per share.

17

The following table presents the computation of basic and diluted net income (loss) per share: 

	Three Months Ended					Nine Months Ended
	February 29,			February 28,		February 29,		February 28,
(In thousands, except per share data)	2024			2023		2024		2023
Numerator:
Net income (loss)	$	(1,471	)	$	4,132	$	9,292	$	8,446
Denominator:
Basic weighted average shares outstanding		28,866			27,893		28,773		27,571
Dilutive effect of common equivalent shares outstanding		-			1,480		897		1,509
Diluted weighted average shares outstanding		28,866			29,373		29,670		29,080
Net income per share - Basic	$	(0.05	)	$	0.15	$	0.32	$	0.31
Net income per share - Diluted	$	(0.05	)	$	0.14	$	0.31	$	0.29
Antidilutive employee share-based award shares, excluded		1,203			15		71		15

12. SEGMENT AND CONCENTRATION INFORMATION

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or group, in deciding how to allocate resources and in assessing performance.

The Company’s chief operating decision maker, the chief executive officer, reviews discrete financial information presented on a consolidated basis for purposes of regularly making operating decisions and assessing financial performance. Accordingly, the Company considers itself to be in one operating segment.

Long-lived assets, net by geographic area are as follows:

	February 29,		May 31,
(In thousands)	2024		2023
United States	$	3,015	$	2,713
International		135		46
Total long-lived assets, net	$	3,150	$	2,759

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

The following discussion of our financial condition and results of operations contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact may be forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as “may,” “could,” “should,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “potential”, “target” or “continue,” the negative effect of terms like these or other similar expressions. Any statement concerning future financial performance (including future revenues, earnings or growth rates), ongoing business strategies or prospects, and possible actions taken by us or our subsidiaries, which may be provided by us are also forward-looking statements. These forward-looking statements are only predictions. Forward-looking statements are based on current expectations and projections about future events and are inherently subject to a variety of risks and uncertainties, many of which are beyond our control, which could cause actual results to differ materially from those anticipated or projected. All forward-looking statements included in this document are based on information available to us on the date of filing and we further caution investors that our business and financial performance are subject to substantial risks and uncertainties. We assume no obligation to update any such forward-looking statements. In evaluating these statements, you should specifically consider various factors, including the risk factors set forth in Item 1. “Business” and Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended May 31, 2023, filed with the Securities and Exchange Commission on August 28, 2023. All references to “we”, “us”, “our”, “Aehr Test”, “Aehr Test Systems” or the “Company” refer to Aehr Test Systems.  

Overview

We are a leading provider of test solutions for testing, burning-in, and stabilizing semiconductor devices in wafer level, singulated die, and package part form, and have installed thousands of systems worldwide. Increasing quality, reliability, safety, and security needs of semiconductors used across multiple applications, including electric vehicles, electric vehicle charging infrastructure, solar and wind power, computing, data and telecommunications infrastructure, and solid-state memory and storage, are driving additional test requirements, incremental capacity needs, and new opportunities for our test products and solutions.

We have developed and introduced several innovative products including the FOX-P family of test and burn-in systems and FOX WaferPak Aligner, FOX WaferPak Contactor, FOX DiePak Carrier and FOX DiePak Loader. The FOX-XP and FOX-NP systems are full wafer contact and singulated die/module test and burn-in systems that can test, burn-in, and stabilize a wide range of devices such as leading-edge silicon carbide-based and other power semiconductors, 2D and 3D sensors used in mobile phones, tablets, and other computing devices, memory semiconductors, processors, microcontrollers, systems-on-a-chip, and photonics and integrated optical devices. The FOX-CP system is a low-cost single-wafer compact test solution for logic, memory and photonic devices and the newest addition to the FOX-P product family. The FOX WaferPak Contactor contains a unique full wafer contactor capable of testing wafers up to 300mm that enables Integrated Circuit manufacturers to perform test, burn-in, and stabilization of full wafers on the FOX-P systems. The FOX DiePak Carrier allows testing, burning in, and stabilization of singulated bare die and modules up to 1,024 devices in parallel per DiePak on the FOX-NP and FOX-XP systems up to nine DiePaks at a time.

Our net revenue consists primarily of sales of FOX-P systems, WaferPak Aligners and DiePak Loaders, WaferPak contactors, DiePak carriers, test fixtures, upgrades and spare parts, service contracts revenues, and non-recurring engineering 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, transfer of title and risk of loss.

Critical Accounting 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 judgments, including those related to customer programs and incentives, product returns, credit losses, inventories, income taxes, 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, 2023.

There have been no material changes to our critical accounting policies and estimates during the three and nine months ended February 29, 2024 compared to those discussed in our Annual Report on Form 10-K for the fiscal year ended May 31, 2023. 

Results of Operations

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Discussion of Results of Operations for the Three and Nine Months Ended February 29, 2024 compared to the Three and Nine Months Ended February 28, 2023

Revenues

Revenue by Category	Three Months Ended							Nine Months Ended
	February 29,			February 28,			Percent	February 29,			February 28,			Percent
(Dollars in thousands)	2024			2023			Change	2024			2023			Change
Products	$	6,730		$	16,120		(58%)	$	45,924		$	39,715			16	%
Services		833			1,086		(23%)		3,694			2,977			24	%
Total revenues	$	7,563		$	17,206		(56%)	$	49,618		$	42,692			16	%
Products as a percentage of total revenues		89.0	%		93.7	%			92.6	%		93.0	%
Services as a percentage of total revenues		11.0	%		6.3	%			7.4	%		7.0	%

Revenue decreased to $7.6 million for the three months ended February 29, 2024 from $17.2 million for the three months ended February 28, 2023, driven by a decrease in shipments for our products and services due to the recent overall softness in the demand for electric vehicles. Our systems revenue decreased by $7.8 million, our contactors revenue decreased by $1.5 million, and our services revenue decreased by $0.3 million.

Revenue increased to $49.6 million for the nine months ended February 29, 2024 from $42.7 million for the nine months ended February 28, 2023,  primarily driven by strong sales in contactors.  Our contactors revenue increased by $11.8 million, and our services revenue increased by $0.7 million. The increase was partially offset by a decrease in systems revenue of $5.6 million.

Revenue by Geography	Three Months Ended							Nine Months Ended
	February 29,			February 28,			Percent	February 29,			February 28,			Percent
(Dollars in thousands)	2024			2023			Change	2024			2023			Change
Asia	$	5,167		$	14,849		(65%)	$	43,320		$	34,873			24	%
United States		1,640			2,343		(30%)		3,105			7,761		(60		%)
Europe	$	756			14		N.M.		3,193			58		N.M.
Total revenues	$	7,563		$	17,206		(56%)	$	49,618		$	42,692			16	%
Asia as a percentage of total revenues		68.3	%		86.3	%			87.3	%		81.7	%
United States as a percentage of total revenues		21.7	%		13.6	%			6.3	%		18.2	%
Europe as a percentage of total revenues		10.0	%		0.1	%			6.4	%		0.1	%

N.M.-Not meaningful

On a geographic basis, revenues represent products that were shipped to or services that were performed at our customer locations. For the three months ended February 29, 2024 compared to the three months ended February 28, 2023, revenue in Asia and United States decreased, driven by fewer shipments to our customers in Asia and United States due to the recent overall softness in the demand for electric vehicles, partially offset by the increase in revenue from customers in Europe. For the nine months ended February 29, 2024, international revenues increased, compared to the same period in the prior year, primarily as a result of the more shipments to our customers in Asia and Europe, partially offset by the decline in revenue from a customer in the United States.

Gross Margin

20

Gross Profit by Category	Three Months Ended							Nine Months Ended
	February 29,			February 28,			Percent	February 29,			February 28,			Percent
(Dollars in thousands)	2024			2023			Change	2024			2023			Change
Products	$	2,782		$	8,392		(67%)	$	22,350		$	19,976			12	%
Services		374			483		(23%)		1,745			1,291			35	%
Gross profit	$	3,156		$	8,875		(64%)	$	24,095		$	21,267			13	%
Gross Margin by Category
Product		41.3	%		52.1	%			48.7	%		50.3	%
Services		44.9	%		44.5	%			47.2	%		43.4	%
Gross margin		41.7	%		51.6	%			48.6	%		49.8	%

Gross profit decreased to $3.2 million for the three months ended February 29, 2024 from $8.9 million for the three months ended February 28, 2023. Gross margin decreased to 41.7% for the three months ended February 29, 2024 from 51.6% for the three months ended February 28, 2023. The decrease in gross margin of 9.9 percentage points was primarily due to lower shipments resulting in lower manufacturing efficiencies, an increase in costs from design changes, and higher warranty expenses.

Gross profit increased to $24.1 million for the nine months ended February 29, 2024 from $21.3 million for the nine months ended February 28, 2023. Gross margin decreased to 48.6% for the nine months ended February 29, 2024 from 49.8% for the nine months ended February 28, 2023. The decrease in gross margin of 1.2 percentage points was primarily driven by a slight decrease in products gross margin due to higher costs from design changes and logistics, partially offset by improved services gross margin.

Research and Development

	Three Months Ended									Nine Months Ended
	February 29,			February 28,			Percent			February 29,			February 28,			Percent
(Dollars in thousands)	2024			2023			Change			2024			2023			Change
Research and development	$	2,139		$	1,832			17	%	$	6,568		$	4,881			35	%
As a percentage of total revenues		28.3	%		10.6	%					13.2	%		11.4	%

Research and development expenses consist primarily of compensation and benefits for product development personnel, outside development service costs, travel expenses, facilities cost allocations, and stock-based compensation charges. Research and development expenses increased to $2.1 million for the three months ended February 29, 2024, compared to $1.8 million for the three months ended February 28, 2023. The increase of $0.3 million was primarily driven by higher non-recurring engineering services charges, an increase in allocated facility cost and higher employment costs due to an increase in headcount. We anticipate our expenses in research and development will fluctuate in absolute dollars from period to period as a result of the timing of product development projects and revenue generating activity requirements.

Research and development expenses increased to $6.6 million for the nine months ended February 29, 2024, compared to $4.9 million for the nine months ended February 28, 2023. The increase of $1.7 million was primarily due to higher non-recurring engineering services charges of $0.7 million, higher employment-related costs of $0.6 million and an increase in allocated facility cost of $0.2 million.

Selling, General and Administrative

	Three Months Ended							Nine Months Ended
	February 29,			February 28,			Percent	February 29,			February 28,			Percent
(Dollars in thousands)	2024			2023			Change	2024			2023			Change
Selling, general and administrative	$	3,063		$	3,250		(6%)	$	9,990		$	8,650			15	%
As a percentage of total revenues		40.5	%		18.9	%			20.1	%		20.3	%

21

Selling, general and administrative expenses consist primarily of compensation and benefits for sales, marketing and general and administrative personnel, legal and accounting service costs, marketing communications costs, travel expenses, facilities cost allocations, and stock-based compensation charges. Selling, general and administrative expenses decreased to $3.1 million for the three months ended February 29, 2024, compared to $3.3 million for the three months ended February 28, 2023. The decrease was primarily due to the reversal of a prior period accrual for bonuses based on revenue and profitability levels that are now not anticipated to be met.

Selling, general and administrative expenses increased to $10.0 million for the nine months ended February 29, 2024, compared to $8.7 million for the nine months ended February 28, 2023. The increase of $1.3 million was primarily due to an increase in employment-related cost of $1.1 million and an increase in audit and legal service fees of $0.3 million.

Interest and Other Income (Expense), Net

	Three Months Ended									Nine Months Ended
	February 29,			February 28,			Percent			February 29,		February 28,		Percent
(Dollars in thousands)	2024			2023			Change			2024		2023		Change
Interest income	$	584		$	374			56	%	$	1,796	$	758		137	%
Other income (expense), net		(2	)		(18	)	(89		%)		2		1		100	%
Interest and other income (expense), net	$	582		$	356			63	%	$	1,798	$	759		137	%

Interest and other income (expense), net, primarily consists of interest income and foreign currency transaction exchange gains and losses. Interest and other income (expense), net, increased for the three and nine months ended February 29, 2024, compared to the same periods in the prior year, primarily driven by higher interest income earned due to higher average cash and investment balances and higher yields from our investments in money market funds.

Provision for Income Taxes 

	Three Months Ended					Nine Months Ended
	February 29,		February 28,		Percent	February 29,		February 28,		Percent
(Dollars in thousands)	2024		2023		Change	2024		2023		Change
Provision for income taxes	$	7	$	17	(59%)	$	43	$	49	(12%)

Income tax expense was not significant due to the available net operating losses and research and development credits carryforwards.

Liquidity and Capital Resources

Cash, cash equivalents, and restricted cash were $47.7 million as of February 29, 2024, compared to $17.3 million as of February 28, 2023. Short term investments were $0 as of February 29, 2024, compared to $25.6 million of February 28, 2023. We believe that our existing cash resources and anticipated funds from operations will satisfy our cash requirements to fund our operating activities, capital expenditures and other obligations for the next twelve months.

	Nine Months Ended
	February 29,			February 28,
(In thousands)	2024			2023			Change
Operating activities	$	532		$	4,143		$	(3,611	)
Investing activities		17,297			(25,472	)		42,769
Financing activities		(282	)		7,138			(7,420	)
Effect of exchange rate changes on cash, cash equivalents and restricted cash		(20	)		(35	)		15
Net increase in cash, cash equivalents and restricted cash	$	17,527		$	(14,226	)	$	31,753

22

Net Cash Flows Provided by Operating Activities

Cash flow from operating activities during the nine months ended February 29, 2024 mostly consisted of net income, adjusted for certain non-cash items which primarily consisted of depreciation and amortization, share-based compensation expense and amortization of operating lease right-of-use assets. The $3.6 million decrease in cash flows from operating activities for the nine months ended February 29, 2024, compared to the nine months ended February 28, 2023, was driven primarily by an increase in cash used in inventory production and vendor payments due to anticipated customer demand, and a decrease in cash provided by deferred revenue due to timing of customer deposits and revenue recognition, partially offset by an increase in cash provided by collection of accounts receivable and a higher net income.

Net Cash Flows Provided by (Used in) Investing Activities

Net cash provided by investing activities increased by $42.8 million for the nine months ended February 29, 2024 compared to the nine months ended February 28, 2023. The increase was primarily due to the maturity of our short-term investments of $18.0 million during the nine months ended February 29, 2024, while the net purchase of short-term investments was $25.3 million during the nine months ended February 28, 2023.

Net Cash Flows Provided by (Used in) Financing Activities

Net cash provided by financing activities decreased by $7.4 million for the nine months ended February 29, 2024, compared to the nine months ended February 28, 2023. During the nine months ended February 28, 2023, net proceeds from the sale of our common stock under our “At the market” offering program were $6.9 million compared to no such sales during the same period in the current year.

Off-Balance Sheet Agreements

We do not have any off-balance sheet arrangements, investments in special purpose entities or undisclosed borrowings or debt. 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, 2023.

23

Item 3. Quantitative and Qualitative Disclosures about Market Risk

As a smaller reporting company, we are not required to provide the information under this item.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our chief executive officer, or CEO, and chief financial officer, or CFO, evaluated the effectiveness of our "disclosure controls and procedures" as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) as of February 29, 2024, in connection with the filing of this Quarterly Report on Form 10-Q. Based on that evaluation as of February 29, 2024, our CEO and CFO concluded that our disclosure controls and procedures were effective to ensure that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in rules and forms of the SEC and accumulated and communicated to our management as appropriate to allow timely decisions regarding required disclosures.

Changes in Internal Control over Financial Reporting

There were no changes in the Company's internal control over financial reporting during the three months ended February 29, 2024, that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

24

PART II — OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we are subject to various claims and legal proceedings that arise in the ordinary course of business. We accrue for losses related to litigation when a potential loss is probable and the loss can be reasonably estimated in accordance with FASB requirements. During the reported period, we were not a party to any material legal proceedings, thus no loss was probable and no amount was accrued as of February 29, 2024.

Item 1A. Risk Factors

Item 1A, “Risk Factors,” on pages 10 through 16 of the Company’s Annual Report on Form 10-K for the year ended May 31, 2023, provides information on the significant risks associated with our business. There have been no subsequent material changes to these risks.

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

During the fiscal quarter ended February 29, 2024, none of our directors or officers informed us of the adoption or termination of a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408(a).

25

Item 6. Exhibits

Exhibit Number	Description
3.1(1)	Restated Article of Incorporation of Registrant
3.2(2)	Amended and Restated Bylaws of the Registrant
4.1(3)	Form of Common Stock certificate
31.01	Certification of the principal executive officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.†
31.02	Certification of the principal financial and accounting officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.†
32.01	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.**
32.02	Certification 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 the same-numbered exhibit previously filed with the Company’s Registration Statement on Form S-1 filed June 11, 1997 (File No. 333-28987).
2	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).
3	Incorporated by reference to the same-numbered exhibit previously filed with Amendment No.1 to the Company’s Registration Statement on Form S-1 filed July 17, 1997 (File No. 333-28987).
†	Filed herewith.
**	Furnished, and not filed.

26

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
Date:  April 10, 2024	By:	/s/ GAYN ERICKSON
		Gayn Erickson
		President and Chief Executive Officer
		(Principal Executive Officer)

Date: April 10, 2024	By:	/s/ CHRIS P. SIU
		Chris P. Siu
		Executive Vice President of Finance, Chief Financial Officer and Secretary
		(Principal Financial and Accounting Officer)

27

EX-31.01

EXHIBIT 31.01

CERTIFICATIONS

 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 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 that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

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

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

Date: April 10, 2024

EX-31.02

EXHIBIT 31.02

CERTIFICATIONS

I, Chris P. Siu, 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 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 that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

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

By:	/s/ CHRIS P. SIU
	Chris P. Siu
	Executive Vice President of Finance, Chief Financial Officer and Secretary
	(Principal Financial and Accounting Officer)

Date: April 10, 2024

EX-32.01

 EXHIBIT 32.01

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Aehr Test Systems (the “Company”) on Form 10-Q for the quarter ended February 29, 2024, as filed with the Securities and Exchange Commission on April 10, 2024 (the “Report”), I, Gayn Erickson, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1)	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

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

Date: April 10, 2024

EX-31.02

EXHIBIT 32.02

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Aehr Test Systems (the “Company”) on Form 10-Q for the quarter ended February 29, 2024 as filed with the Securities and Exchange Commission on April 10, 2024 (the “Report”), I, Chris P. Siu, Executive Vice President of Finance, Chief Financial Officer and Secretary of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1)	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

By:	/s/ CHRIS P. SIU
	Chris P. Siu
	Executive Vice President of Finance, Chief Financial Officer and Secretary
	(Principal Financial and Accounting Officer)

Date: April 10, 2024 

XML

Cover - shares	9 Months Ended
	Feb. 29, 2024	Apr. 01, 2024
Cover [Abstract]
Entity Registrant Name	AEHR TEST SYSTEMS
Entity Central Index Key	0001040470
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--05-31
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Feb. 29, 2024
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2024
Entity Common Stock Shares Outstanding		28,914,729
Entity File Number	000-22893
Entity Incorporation State Country Code	CA
Entity Tax Identification Number	94-2424084
Entity Address Address Line 1	400 Kato Terrace
Entity Address City Or Town	Fremont
Entity Address State Or Province	CA
Entity Address Postal Zip Code	94539
City Area Code	510
Local Phone Number	623-9400
Security 12b Title	Common Stock par value of $0.01 per share
Trading Symbol	AEHR
Security Exchange Name	NASDAQ
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Feb. 29, 2024	May 31, 2023
Current assets:
Cash and cash equivalents	$ 47,581	$ 30,054
Short-term investments	0	17,853
Accounts receivable, net	5,468	16,594
Inventories	38,085	23,908
Prepaid expenses and other current assets	1,215	621
Total current assets	92,349	89,030
Property and equipment, net	3,150	2,759
Operating lease right-of-use assets, net	5,863	6,123
Other non-current assets	234	231
Total assets	101,596	98,143
Current liabilities:
Accounts payable	4,979	9,206
Accrued expenses	3,287	4,143
Operating lease liabilities, short-term	428	137
Deferred revenue, short-term	486	2,822
Total current liabilities	9,180	16,308
Operating lease liabilities, long-term	5,878	6,163
Deferred revenue, long-term	0	31
Other long-term liabilities	41	41
Total liabilities	15,099	22,543
Shareholders' equity:
Preferred stock, $0.01 par value: Authorized: 10,000 shares; Issued and outstanding: none	0	0
Common stock, $0.01 par value: Authorized: 75,000 shares; Issued and outstanding: 28,906 shares and 28,539 shares at February 29, 2024 and May 31, 2023, respectively	289	285
Additional paid-in-capital	129,366	127,776
Accumulated other comprehensive loss	(144)	(155)
Accumulated deficit	(43,014)	(52,306)
Total shareholders' equity	86,497	75,600
Total liabilities and shareholders' equity	$ 101,596	$ 98,143

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Feb. 29, 2024	May 31, 2023
CONDENSED CONSOLIDATED BALANCE SHEETS
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	28,906,000	28,539,000
Common stock, shares outstanding	28,906,000	28,539,000

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Revenues
Total Revenue	$ 7,563	$ 17,206	$ 49,618	$ 42,692
Cost of revenue:
Total cost of revenue	4,407	8,331	25,523	21,425
Gross profit	3,156	8,875	24,095	21,267
Operating expenses:
Research and development	2,139	1,832	6,568	4,881
Selling, general and administrative	3,063	3,250	9,990	8,650
Total operating expenses	5,202	5,082	16,558	13,531
Income (loss) from operations	(2,046)	3,793	7,537	7,736
Interest income, net	584	374	1,796	758
Other income (expense), net	(2)	(18)	2	1
Income (loss) before provision for income taxes	(1,464)	4,149	9,335	8,495
Provision for income taxes	7	17	43	49
Net income (loss)	$ (1,471)	$ 4,132	$ 9,292	$ 8,446
Net income (loss) per share:
Basic	$ (0.05)	$ 0.15	$ 0.32	$ 0.31
Diluted	$ (0.05)	$ 0.14	$ 0.31	$ 0.29
Shares used in per share calculations:
Basic	28,866	27,893	28,773	27,571
Diluted	28,866	29,373	29,670	29,080
Product [Member]
Revenues
Total Revenue	$ 6,730	$ 16,120	$ 45,924	$ 39,715
Cost of revenue:
Total cost of revenue	3,948	7,728	23,574	19,739
Services [Member]
Revenues
Total Revenue	833	1,086	3,694	2,977
Cost of revenue:
Total cost of revenue	$ 459	$ 603	$ 1,949	$ 1,686

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)
Net income (loss)	$ (1,471)	$ 4,132	$ 9,292	$ 8,446
Other comprehensive income (loss), net of tax:
Net change in cumulative translation adjustment	(10)	9	(6)	(35)
Net change in unrealized gain (loss) on investments	0	(16)	17	(22)
Comprehensive income (loss)	$ (1,481)	$ 4,125	$ 9,303	$ 8,389

XML

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($)	Total	Common Stock	Additional Paid-In Capital	Accumulated other comprehensive loss	Retained Earnings (Accumulated Deficit)
Balance, shares at May. 31, 2022		27,120,000
Balance, amount at May. 31, 2022	$ 50,989,000	$ 271,000	$ 117,686,000	$ (105,000)	$ (66,863,000)
Issuance of common stock under employee plans, shares		1,156,000
Issuance of common stock under employee plans, amount	1,965,000	$ 11,000	1,954,000	0	0
Shares repurchased for tax withholdings on vesting of restricted stock units, shares		(165)
Shares repurchased for tax withholdings on vesting of restricted stock units, amount	(1,680,000)	$ (1,000)	(1,679,000)	0	0
Proceeds from public offering, net of issuance costs		209
Proceeds from public offering, net of issuance costs, amount	6,853	$ 2	6,851	0	0
Stock-based compensation	2,118,000	0	2,118,000	0	0
Net income	8,446,000	0	0	0	8,446,000
Foreign currency translation adjustment	(35,000)	0	0	(35,000)	0
Net unrealized loss on investments	(22,000)	$ 0	0	(22,000)	0
Balance, shares at Feb. 28, 2023		28,320,000
Balance, amount at Feb. 28, 2023	68,634,000	$ 283,000	126,930,000	(162,000)	(58,417,000)
Balance, shares at Nov. 30, 2022		27,732,000
Balance, amount at Nov. 30, 2022	56,667,000	$ 277,000	119,094,000	(155,000)	(62,549,000)
Issuance of common stock under employee plans, shares		395,000
Issuance of common stock under employee plans, amount	853,000	$ 4,000	849,000	0	0
Shares repurchased for tax withholdings on vesting of restricted stock units, shares		(16,000)
Shares repurchased for tax withholdings on vesting of restricted stock units, amount	$ (464,000)	$ 0	$ (464,000)	0	0
Proceeds from public offering, net of issuance costs	6,853	2	6,851
Proceeds from public offering, net of issuance costs, amount		$ 209
Stock-based compensation	$ 600,000	0	$ 600,000	0
Net income	4,132,000	0	0	0	4,132,000
Foreign currency translation adjustment	9,000	0	0	9,000	0
Net unrealized loss on investments	(16,000)	$ 0	0	(16,000)	0
Balance, shares at Feb. 28, 2023		28,320,000
Balance, amount at Feb. 28, 2023	68,634,000	$ 283,000	126,930,000	(162,000)	(58,417,000)
Balance, shares at May. 31, 2023		28,539,000
Balance, amount at May. 31, 2023	75,600,000	$ 285,000	127,776,000	(155,000)	(52,306,000)
Shares repurchased for tax withholdings on vesting of restricted stock units, amount	(1,480,000)
Net income	9,292,000
Balance, shares at Feb. 29, 2024		28,906,000
Balance, amount at Feb. 29, 2024	86,497,000	$ 289,000	129,366,000	(144,000)	(43,014,000)
Balance, shares at May. 31, 2023		28,539,000
Balance, amount at May. 31, 2023	75,600,000	$ 285,000	127,776,000	(155,000)	(52,306,000)
Issuance of common stock under employee plans, shares		402,000
Issuance of common stock under employee plans, amount	1,270,000	$ 4,000	1,266,000	0	0
Shares repurchased for tax withholdings on vesting of restricted stock units, shares		(35,000)
Shares repurchased for tax withholdings on vesting of restricted stock units, amount	(1,480,000)	$ 0	(1,480,000)	0	0
Stock-based compensation	1,876,000	0	1,876,000	0	0
Net income	9,292,000	0	0	0	9,292,000
Foreign currency translation adjustment	(6,000)	0	0	(6,000)	0
Net unrealized loss on investments	17,000	0	0	17,000	0
Issuance cost of common stock offering	(72,000)	$ 0	(72,000)	0	0
Balance, shares at Feb. 28, 2024		28,906,000
Balance, amount at Feb. 28, 2024	86,497,000	$ 289,000	129,366,000	(144,000)	(43,014,000)
Balance, shares at Nov. 30, 2023		28,826,000
Balance, amount at Nov. 30, 2023	87,154,000	$ 288,000	128,543,000	(134,000)	(41,543,000)
Issuance of common stock under employee plans, shares		81,000
Issuance of common stock under employee plans, amount	178,000	$ 1,000	177,000	0	0
Shares repurchased for tax withholdings on vesting of restricted stock units, shares		(1,000)
Shares repurchased for tax withholdings on vesting of restricted stock units, amount	(20,000)	$ 0	(20,000)	0	0
Stock-based compensation	666,000	0	666,000	0	0
Net income	(1,471,000)	0	0	0	(1,471,000)
Foreign currency translation adjustment	(10,000)	$ 0	0	(10,000)	0
Balance, shares at Feb. 29, 2024		28,906,000
Balance, amount at Feb. 29, 2024	$ 86,497,000	$ 289,000	$ 129,366,000	$ (144,000)	$ (43,014,000)

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023
Cash flows from operating activities:
Net income	$ 9,292	$ 8,446
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	1,744	2,095
Depreciation and amortization	469	337
Accretion of investment discount	(130)	(305)
Amortization of operating lease right-of-use assets	522	479
Provision for doubtful accounts	0	24
Changes in operating assets and liabilities:
Accounts receivable	11,130	1,414
Inventories	(14,182)	(6,783)
Prepaid expenses and other current assets	(600)	(167)
Accounts payable	(4,232)	822
Accrued expenses	(874)	(126)
Deferred revenue	(2,368)	(1,633)
Operating lease liabilities	(257)	(469)
Income taxes payable	18	9
Net cash provided by operating activities	532	4,143
Cash flows from investing activities:
Purchases of property and equipment	(703)	(178)
Proceeds from maturities of investments	18,000	8,000
Purchases of investments	0	(33,294)
Net cash provided by (used in) investing activities	17,297	(25,472)
Cash flows from financing activities:
Proceeds from issuance of common stock under employee plans	1,270	1,965
Shares repurchased for tax withholdings on vesting of restricted stock units, amount	(1,480)	(1,680)
Proceeds from issuance of common stock from public offering, net of issuance costs	(72)	6,853
Net cash provided by (used in) financing activities	(282)	7,138
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(20)	(35)
Net increase (decrease) in cash, cash equivalents and restricted cash	17,527	(14,226)
Cash, cash equivalents and restricted cash, beginning of period	30,204	31,564
Cash, cash equivalents and restricted cash, end of period	$ 47,731	$ 17,338

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ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

9 Months Ended

Feb. 29, 2024

ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

1. ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

Organization – Aehr Test Systems (the “Company”) was incorporated in California in May 1977 and develops and manufactures test and burn-in equipment used in the semiconductor industry. The Company’s principal products are the FOX-XP, FOX-NP, and FOX-CP wafer contact and singulated die/module parallel test and burn-in systems, the WaferPak full wafer contactor, the DiePak carrier, the WaferPak aligner, the DiePak autoloader, and test fixtures.

Basis of Presentation – The unaudited Condensed Consolidated Financial Statements included in this quarterly report on Form 10-Q include the accounts of the Company and its wholly-owned subsidiaries and have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial reporting and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim reporting. Accordingly, the unaudited Condensed Consolidated Financial Statements do not include certain information and footnote disclosures normally included in the annual consolidated financial statements. 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, 2023 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 should be read in conjunction with the Consolidated Financial Statements contained in the Company's Annual Report on Form 10-K for the year ended May 31, 2023.

Principles of Consolidation – The Company’s Condensed Consolidated Financial Statements include the accounts of the Company and its wholly-owned subsidiaries and all significant intercompany accounts and transactions have been eliminated upon consolidation.

Critical Accounting Policies and use of Estimates – The Company’s significant accounting policies are disclosed in the Company’s Annual Report on Form 10-K for the year ended May 31, 2023. There have been no significant changes in the Company’s significant accounting policies during the three and nine months ended February 29, 2024. 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, the 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. Significant estimates in these Condensed Consolidated Financial Statements include valuation of inventory at the lower of cost or net realizable value and warranty reserves. Actual results could differ from those estimates.

Reclassifications - Certain reclassifications have been made to the prior period Condensed Consolidated Financial Statements to conform to the current period presentation. The reclassifications had no impact on net income, total assets, total liabilities, or shareholders’ equity.

Concentration of Credit Risk – Financial instruments which subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. The Company performs credit evaluations of its customers’ financial condition and generally requires no collateral. The Company had revenues from individual customers in excess of 10% of total revenues as follows: 

	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,			February 28,
	2024			2023			2024			2023
Customer A		59.6	%		82.5	%		65.8	%		77.5	%
Customer B		19.3	%		11.6	%	*				15.7	%
Customer C	*			*				17.2	%	*

 * Amount was less than 10% of total revenue

The Company had gross accounts receivable from individual customers in excess of 10% of gross accounts receivable as follows: 

	February 29,			May 31,
	2024			2023
Customer A		70.2	%		81.6	%
Customer B		18.0	%	*
Customer C	*				16.5	%

* Amount was less than 10% of total gross accounts receivable

Recent Accounting Pronouncements — The Company's accounts receivable are recorded at invoiced amounts less allowance for any credit losses. According to the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13 that the Company adopted on June 1, 2023, the Company recognizes credit losses based on forward-looking current expected credit losses ("CECL"). The Company makes estimates of expected credit losses based upon its assessment of various factors, including the age of accounts receivable balances, credit quality of its customers, current economic conditions, reasonable and supportable forecasts of future economic conditions, and other factors that may affect its ability to collect from customers. The allowance for credit losses is recognized in the condensed consolidated statements of operations. The uncollectible accounts receivable are written off in the period in which a determination is made that all commercially reasonable means of recovering them have been exhausted. The total allowance for credit losses was $0 at both February 29, 2024 and May 31, 2023, and there was no write-off of accounts receivable for the periods presented. The adoption of ASU 2016-13 did not have a material impact on the Company’s Condensed Consolidated Financial Statements.

Recent Accounting Pronouncements Not Yet Adopted

Improvements to Reportable Segment Disclosures: In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (ASU 2023-07), which requires disclosure of incremental segment information on an annual and interim basis. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024 on a retrospective basis. The Company is currently evaluating the effect of this pronouncement on its disclosures.

Improvements to Income Tax Disclosures: In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which expands the disclosures required for income taxes. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendment should be applied on a prospective basis while retrospective application is permitted. The Company is currently evaluating the effect of this pronouncement on its disclosures.

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FAIR VALUE OF FINANCIAL INSTRUMENTS

9 Months Ended

Feb. 29, 2024

FAIR VALUE OF FINANCIAL INSTRUMENTS

FAIR VALUE OF FINANCIAL INSTRUMENTS

2. FAIR VALUE OF FINANCIAL INSTRUMENTS

Fair Value of Measurements — The Company measures its cash equivalents and money market funds at fair value on a recurring basis. Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. Assets and liabilities recorded at fair value are measured and classified in accordance with a three-tier fair value hierarchy based on the observability of the inputs available in the market used to measure fair value:

Level 1 — Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 — Inputs that are based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant inputs are observable in the market or can be derived from observable market data. Where applicable, these models project future cash flows and discount the future amounts to a present value using market-based observable inputs including interest rate curves, foreign exchange rates, and credit ratings.

Level 3 — Unobservable inputs that are supported by little or no market activities.

The following table represents the Company’s assets measured at fair value on a recurring basis as of February 29, 2024, and the basis for that measurement:

	Balance as of
(In thousands)	February 29, 2024		Level 1		Level 2		Level 3
Money market funds	$	44,189	$	44,189	$	-	$	-
Total	$	44,189	$	44,189	$	-	$	-

The following table represents the Company’s assets measured at fair value on a recurring basis as of May 31, 2023, and the basis for that measurement:

	Balance as of
(In thousands)	May 31, 2023		Level 1		Level 2		Level 3
Money market funds	$	27,022	$	27,022	$	-	$	-
U. S. treasury securities		17,853		17,853		-		-
Total	$	44,875	$	44,875	$	-	$	-

Included in money market funds as of February 29, 2024 and May 31, 2023 is $150,000 restricted cash representing a security deposit for the Company’s United States manufacturing and office space lease. There were no financial liabilities measured at fair value as of February 29, 2024 and May 31, 2023. There were no transfers between Level 1 and Level 2 fair value measurements during the three and nine months ended February 29, 2024. The carrying amounts of financial instruments, including cash equivalents, accounts receivable, accounts payable and certain other accrued liabilities, approximate fair value due to their short maturities.

The following table summarizes the Company’s cash, cash equivalents and investments by security type as of February 29, 2024 and May 31, 2023, respectively:

			Gross
Balances as of February 29, 2024			Unrealized		Estimated
(In thousands)	Cost		Loss		Fair Value
Cash	$	3,542	$	-	$	3,542
Cash equivalents:
Money market funds	$	44,039	$	-	$	44,039
Total cash and cash equivalents	$	47,581	$	-	$	47,581
Long-term investments:
Money market funds	$	150	$	-	$	150
Total cash, cash equivalents and investments	$	47,731	$	-	$	47,731

			Gross
Balances as of May 31, 2023			Unrealized			Estimated
(In thousands)	Cost		Loss			Fair Value
Cash	$	3,182	$	-		$	3,182
Cash equivalents:
Money market funds	$	26,872	$	-		$	26,872
Total cash and cash equivalents	$	30,054	$	-		$	30,054
Short term investments:
U. S. treasury securities	$	17,870	$	(17	)	$	17,853
Long-term investments:
Money market funds	$	150	$	-		$	150
Total cash, cash equivalents and investments	$	48,074	$	(17	)	$	48,057

Long-term investments are included in other assets on the accompanying Condensed Consolidated Balance Sheets. Unrealized gains and temporary losses on investments classified as available-for-sale debt securities are included within accumulated other comprehensive loss, net of any related tax effect. Upon realization, those amounts are reclassified from accumulated other comprehensive loss to results of operations.

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BALANCE SHEET INFORMATION

9 Months Ended

Feb. 29, 2024

BALANCE SHEET INFORMATION

BALANCE SHEET INFORMATION

3. BALANCE SHEET INFORMATION

Inventories

Inventories consisted of the following:

	February 29,		May 31,
(In thousands)	2024		2023
Raw materials and sub-assemblies	$	24,770	$	15,953
Work in process		11,080		5,764
Finished goods		2,235		2,191
	$	38,085	$	23,908

Property and equipment

Property and equipment, net consisted of the following:

	Useful life	February 29,			May 31,
(In thousands)	(in years)	2024			2023
Leasehold improvements	*	$	1,643		$	1,310
Machinery and equipment	3 - 5		5,775			5,445
Test equipment	4 - 5		3,030			2,998
Furniture and fixtures	2 - 5		717			706
			11,165			10,459
Less: accumulated depreciation and amortization			(8,015	)		(7,700	)
		$	3,150		$	2,759

* Lesser of estimated useful life or lease term.

Product warranties

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

The following is a summary of changes in the Company's liability for product warranties during the three and nine months ended February 29, 2024 and February 28, 2023:

	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,			February 28,
(In thousands)	2024			2023			2024			2023
Balance at the beginning of the period	$	221		$	311		$	267		$	410
Accruals for warranties issued during the period		117			84			344			207
Adjustments to previously existing warranty accruals		-			-			-			61
Consumption of reserves		(123	)		(107	)		(396	)		(390	)
Balance at the end of the period	$	215		$	288		$	215		$	288

The accrued warranty balance is included in accrued expenses on the accompanying Condensed Consolidated Balance Sheets.

Deferred revenue

Deferred revenue, short-term consisted of the following:

	February 29,		May 31,
(In thousands)	2024		2023
Customer deposits	$	418	$	2,690
Deferred revenue		68		132
	$	486	$	2,822

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INCOME TAX

9 Months Ended

Feb. 29, 2024

INCOME TAX

INCOME TAX

4. INCOME TAX  

The Company is subject to U.S federal and state and foreign income taxes as a corporation. The Company’s tax provision and the resulting effective tax rate for the interim period is determined based upon its estimated annual effective tax rate adjusted for the effect of discrete items arising in that quarter. The Company recorded a provision for income taxes of $7,000 and $43,000 for the three and nine months ended February 29, 2024, respectively, which consisted primarily of foreign withholding taxes and foreign income taxes. The Company recorded a provision for income taxes of $17,000 and $49,000 for the three and nine months ended February 28, 2023, respectively, which consisted primarily of foreign withholding taxes and foreign 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 was more likely than not that certain deferred tax assets would not be realized. The Company continues to reassess the need for a valuation allowance on a quarterly basis.

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 recognizes interest and penalties related to unrecognized tax benefits as a component of income taxes.

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BORROWING ARRANGEMENTS

9 Months Ended

Feb. 29, 2024

BORROWING ARRANGEMENTS

BORROWING ARRANGEMENTS

5. BORROWING 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 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.

On January 14, 2021, the Company entered into the First Amendment to Loan and Security Agreement (the “Amendment”) with SVB. The Amendment, among other things, extended the Revolving Line Maturity Date to July 14, 2021; provided, however, that if the Company achieved specified operating metrics on a consolidated basis on or prior to May 31, 2021 the Amended Revolving Line Maturity Date would be extended to January 13, 2022.

On January 11, 2022, the Company entered into the Second Amendment to the Loan and Security Agreement (the “Second Amendment”) with SVB. The Second Amendment, among other things, (A) increased the available amount of the line up to the lesser of (i) $10 million or (ii) the available amount under the borrowing base, under a revolving line of credit, (B) allowed for borrowing up to $3 million of the available balance based upon eligible customer purchase orders, (C) reduced the interest rate for account advances under the line to the greater of (a) prime rate plus an additional percentage up to 1.0%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 3.25%, reduces the interest rate for purchase order advances under the line to the greater of (a) prime rate plus an additional percentage up to 1.5%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 3.75%, and (D) extended the maturity date to January 13, 2023. 

On January 10, 2023, the Company entered into the Third Amendment to the Loan and Security Agreement (the “Third Amendment”) with SVB. The Third Amendment, among other things, extends the Revolving Line Maturity Date to January 13, 2024, provided, however, that (i) if the Company submits a fiscal year 2024 plan of record that is generally acceptable to SVB, and (ii) the minimum net liquidity at the end of November 30, 2023 is at least $20.0 million, the Amended Revolving Line Maturity Date would be extended to January 13, 2025.

The Company terminated the revolving line on January 4, 2024.

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COMMITMENTS AND CONTINGENCIES

9 Months Ended

Feb. 29, 2024

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

6. COMMITMENTS AND CONTINGENCIES

Purchase Obligations

The Company has purchase obligations to certain suppliers. In some cases, the products the Company purchases are unique and have provisions against cancellation of the order.

Contingencies

The Company may, from time to time, be involved in legal proceedings arising in the ordinary course of business. While there can be no assurances as to the ultimate outcome of any litigation involving the Company, management does not believe any pending legal proceedings will result in judgment or settlement that will have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows.

In the normal course of business to facilitate sales of its products, the Company indemnifies other parties, including customers, with respect to certain matters, for example, including against losses arising from a breach of representations or covenants, or from intellectual property infringement or other claims. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. In addition, the Company has entered into indemnification agreements with its officers and directors, and the Company’s bylaws contain similar indemnification obligations to the Company’s agents.

It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, payments made by the Company under these agreements have not had a material impact on the Company’s operating results, financial position or cash flow.

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SHAREHOLDERS EQUITY

9 Months Ended

Feb. 29, 2024

SHAREHOLDERS EQUITY

SHAREHOLDERS EQUITY

7. SHAREHOLDERS’ EQUITY

On August 25, 2021, the Board of Directors authorized management to take actions necessary for the execution of a $75 million shelf registration. A Registration Statement on Form S-3 was filed with the SEC on September 3, 2021. A Prospectus Supplement for an "At the Market" ("ATM") sale of $25 million of common stock was subsequently filed on September 17, 2021. On October 8, 2021, the Company executed the ATM offering by selling 1,696,729 shares of common stock at an average selling price of $14.73 per share. The gross proceeds to the Company were $25.0 million, before commission fees of $0.7 million and offering expenses of $0.3 million. Another Prospectus Supplement for an ATM sale of $25 million of common stock was subsequently filed on February 8, 2023. The Company partially executed the ATM offering by selling 208,917 shares of common stock at an average selling price of $34.78 per share. The gross proceeds to the Company during the quarter ended February 28, 2023 were $7.3 million, before commissions of $0.2 million and offering expenses of $0.2 million. As of February 29, 2024, the remaining amount of the ATM offering was $17.7 million.

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ACCUMULATED OTHER COMPREHENSIVE LOSS

9 Months Ended

Feb. 29, 2024

ACCUMULATED OTHER COMPREHENSIVE LOSS

ACCUMULATED OTHER COMPREHENSIVE LOSS

8. ACCUMULATED OTHER COMPREHENSIVE LOSS

Changes in the components of accumulated other comprehensive loss, net of tax, were as follows (in thousands):

	Cumulative			Unrealized loss
(In thousands)	translation adjustment			on investments, net			Total
Balance as of May 31, 2023	$	(138	)	$	(17	)	$	(155	)
Other comprehensive income (loss) before reclassifications		(6	)		17			11
Balance as of February 29,  2024	$	(144	)	$	-		$	(144	)

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REVENUE

9 Months Ended

Feb. 29, 2024

REVENUE

REVENUE

9. 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, 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 and evidenced by transfer of title and risk of loss to the customer. Revenue from services is recognized over time as the customer receives the benefit 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.

The Company sells its products primarily through a direct sales force. In certain international markets, the Company sells its products through independent distributors.

Disaggregation of revenue

The following presents information about the Company’s net revenues in different geographic areas, which are based upon ship-to locations, and by product category:

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Asia	$	5,167	$	14,849	$	43,320	$	34,873
United States		1,640		2,343		3,105		7,761
Europe		756		14		3,193		58
	$	7,563	$	17,206	$	49,618	$	42,692

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Systems	$	1,971	$	9,821	$	20,750	$	26,315
Contactors		4,759		6,299		25,174		13,400
Services		833		1,086		3,694		2,977
	$	7,563	$	17,206	$	49,618	$	42,692

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

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Timing of revenue recognition:
Products and services transferred at a point in time	$	7,240	$	16,863	$	48,225	$	41,523
Services transferred over time		323		343		1,393		1,169
	$	7,563	$	17,206	$	49,618	$	42,692

Contract balances   

Accounts receivable are recognized in the period the Company delivers goods or provides services and when the Company’s right to consideration is unconditional.  Contract assets include unbilled receivables which represent revenues that are earned in advance of scheduled billings to customers. These amounts are primarily related to product sales where transfer of control has occurred but the Company has not yet invoiced. As of February 29, 2024, unbilled receivables were $345,000 and were included in prepaid expenses and other current assets on the accompanying Condensed Consolidated Balance Sheets. Contract assets were not significant as of May 31, 2023.

Contract liabilities include payments received in advance of performance under a contract and are satisfied as the associated revenue is recognized. Contract liabilities as of February 29, 2024 and May 31, 2023 were $486,000 and $2,853,000, respectively, and were included in deferred revenue, short-term and deferred revenue, long-term on the accompanying Condensed Consolidated Balance Sheets. During the three and nine months ended February 29, 2024, the Company recognized $31,000 and $2,802,000 in revenue, respectively, which were included in contract liabilities as of May 31, 2023.

Remaining performance obligations

On February 29, 2024, the Company had $68,000 of remaining performance obligations, which were comprised of service contracts and extended warranty contracts not yet delivered. The Company expects to recognize approximately 30.2% of its remaining performance obligations as revenue in the remainder of fiscal 2024, and an additional 69.8% in fiscal 2025. The foregoing excludes the value of other remaining performance obligations, as they have original durations of one year or less and 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 expenses 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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STOCK-BASED COMPENSATION

9 Months Ended

Feb. 29, 2024

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION

10. STOCK-BASED COMPENSATION

Stock-based compensation expense consists of expenses for stock options, restricted stock units (“RSUs”), performance RSUs (“PRSUs”), restricted shares, performance restricted shares and employee stock purchase plan (“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, PRSUs, restricted shares and performance restricted shares, stock-based compensation expense is based on the fair value of the Company’s common stock at the grant date and is recognized as expense over the employee’s requisite service period. All of the Company’s stock-based compensation is accounted for as equity instruments. See Note 13 in the Company’s Annual Report on Form 10-K for fiscal 2023 filed on August 28, 2023 for further information regarding the 2016 Equity Incentive Plan and the ESPP. On October 23, 2023, the shareholders of the Company approved the 2023 Equity Incentive Plan and on October 27, 2023, the Company filed the Form S-8 to issue awards during this quarter onwards from a pool of 1,500,000 shares. Full value awards, which are equity awards other than options, stock appreciation rights or other awards that are based solely on an increase in value of the shares following the grant date, when granted or forfeited will be counted as the same number of common stock shares added or deducted to the remaining available shares for issuance under the 2023 Equity Incentive Plan. 

The following table summarizes the stock-based compensation expense for the three and nine months ended February 29, 2024 and February 28, 2023:

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Cost of sales	$	58	$	75	$	222	$	252
Research and development		148		158		440		513
Selling, general and administrative		377		359		1,081		1,330
	$	583	$	592	$	1,743	$	2,095

Stock-based compensation expense totaling $252,000 and $120,000 was capitalized as part of inventory as of February 29, 2024 and as of May 31, 2023, respectively.

The Company’s nonvested RSU, PRSU and restricted shares activities during the three and nine months ended February 29, 2024 were as follows:

				Weighted
				Average Grant
				Date Fair
	Shares			Value
	(in thousands)			Per Share
Unvested, May 31, 2023		345		$	6.40
Granted		-
Vested		(77	)		7.16
Forfeited		(52	)		5.79
Unvested, August 31, 2023		216		$	6.27
Granted		203			31.51
Vested		(28	)		8.02
Forfeited		(1	)		29.79
Unvested, November 30, 2023		390		$	19.28
Granted		1			22.57
Vested		(32	)		12.42
Forfeited		(6	)		6.21
Unvested, February 29, 2024		353		$	20.16

Under the ESPP, the Company issued 24,000 and 109,000 shares, respectively, during the nine months ended February 29, 2024 and February 28, 2023. As of February 29, 2024 and February 28, 2023, ESPP shares available for issuance totaled 373,000 and 499,000, respectively.

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NET INCOME (LOSS) PER SHARE

9 Months Ended

Feb. 29, 2024

Net income (loss) per share:

NET INCOME (LOSS) PER SHARE

11. NET INCOME (LOSS) PER SHARE

Basic net income (loss) per share is determined using the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is determined using the weighted average number of common shares and potential common shares (representing the hypothetical number of incremental shares issuable under the assumed exercise of outstanding stock options, and vesting of outstanding RSUs and ESPP shares) during the period using the treasury stock method. The calculation of dilutive shares outstanding excludes securities that would have an antidilutive effect on net income (loss) per share.

The following table presents the computation of basic and diluted net income (loss) per share: 

	Three Months Ended					Nine Months Ended
	February 29,			February 28,		February 29,		February 28,
(In thousands, except per share data)	2024			2023		2024		2023
Numerator:
Net income (loss)	$	(1,471	)	$	4,132	$	9,292	$	8,446
Denominator:
Basic weighted average shares outstanding		28,866			27,893		28,773		27,571
Dilutive effect of common equivalent shares outstanding		-			1,480		897		1,509
Diluted weighted average shares outstanding		28,866			29,373		29,670		29,080
Net income per share - Basic	$	(0.05	)	$	0.15	$	0.32	$	0.31
Net income per share - Diluted	$	(0.05	)	$	0.14	$	0.31	$	0.29
Antidilutive employee share-based award shares, excluded		1,203			15		71		15

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SEGMENT AND CONCENTRATION INFORMATION

9 Months Ended

Feb. 29, 2024

SEGMENT AND CONCENTRATION INFORMATION

SEGMENT AND CONCENTRATION INFORMATION

12. SEGMENT AND CONCENTRATION INFORMATION

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or group, in deciding how to allocate resources and in assessing performance.

The Company’s chief operating decision maker, the chief executive officer, reviews discrete financial information presented on a consolidated basis for purposes of regularly making operating decisions and assessing financial performance. Accordingly, the Company considers itself to be in one operating segment.

Long-lived assets, net by geographic area are as follows:

	February 29,		May 31,
(In thousands)	2024		2023
United States	$	3,015	$	2,713
International		135		46
Total long-lived assets, net	$	3,150	$	2,759

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ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Policies)

9 Months Ended

Feb. 29, 2024

ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

Organization

Organization – Aehr Test Systems (the “Company”) was incorporated in California in May 1977 and develops and manufactures test and burn-in equipment used in the semiconductor industry. The Company’s principal products are the FOX-XP, FOX-NP, and FOX-CP wafer contact and singulated die/module parallel test and burn-in systems, the WaferPak full wafer contactor, the DiePak carrier, the WaferPak aligner, the DiePak autoloader, and test fixtures.

Basis of Presentation

Basis of Presentation – The unaudited Condensed Consolidated Financial Statements included in this quarterly report on Form 10-Q include the accounts of the Company and its wholly-owned subsidiaries and have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial reporting and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim reporting. Accordingly, the unaudited Condensed Consolidated Financial Statements do not include certain information and footnote disclosures normally included in the annual consolidated financial statements. 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, 2023 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 should be read in conjunction with the Consolidated Financial Statements contained in the Company's Annual Report on Form 10-K for the year ended May 31, 2023.

Principles of Consolidation

Principles of Consolidation – The Company’s Condensed Consolidated Financial Statements include the accounts of the Company and its wholly-owned subsidiaries and all significant intercompany accounts and transactions have been eliminated upon consolidation.

Critical Accounting Policies and use of Estimates

Critical Accounting Policies and use of Estimates – The Company’s significant accounting policies are disclosed in the Company’s Annual Report on Form 10-K for the year ended May 31, 2023. There have been no significant changes in the Company’s significant accounting policies during the three and nine months ended February 29, 2024. 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, the 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. Significant estimates in these Condensed Consolidated Financial Statements include valuation of inventory at the lower of cost or net realizable value and warranty reserves. Actual results could differ from those estimates.

Reclassifications

Reclassifications - Certain reclassifications have been made to the prior period Condensed Consolidated Financial Statements to conform to the current period presentation. The reclassifications had no impact on net income, total assets, total liabilities, or shareholders’ equity.

Concentration of Credit Risk

Concentration of Credit Risk – Financial instruments which subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. The Company performs credit evaluations of its customers’ financial condition and generally requires no collateral. The Company had revenues from individual customers in excess of 10% of total revenues as follows: 

	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,			February 28,
	2024			2023			2024			2023
Customer A		59.6	%		82.5	%		65.8	%		77.5	%
Customer B		19.3	%		11.6	%	*				15.7	%
Customer C	*			*				17.2	%	*

 * Amount was less than 10% of total revenue

The Company had gross accounts receivable from individual customers in excess of 10% of gross accounts receivable as follows: 

	February 29,			May 31,
	2024			2023
Customer A		70.2	%		81.6	%
Customer B		18.0	%	*
Customer C	*				16.5	%

* Amount was less than 10% of total gross accounts receivable

Recent Accounting Pronouncements

Recent Accounting Pronouncements — The Company's accounts receivable are recorded at invoiced amounts less allowance for any credit losses. According to the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13 that the Company adopted on June 1, 2023, the Company recognizes credit losses based on forward-looking current expected credit losses ("CECL"). The Company makes estimates of expected credit losses based upon its assessment of various factors, including the age of accounts receivable balances, credit quality of its customers, current economic conditions, reasonable and supportable forecasts of future economic conditions, and other factors that may affect its ability to collect from customers. The allowance for credit losses is recognized in the condensed consolidated statements of operations. The uncollectible accounts receivable are written off in the period in which a determination is made that all commercially reasonable means of recovering them have been exhausted. The total allowance for credit losses was $0 at both February 29, 2024 and May 31, 2023, and there was no write-off of accounts receivable for the periods presented. The adoption of ASU 2016-13 did not have a material impact on the Company’s Condensed Consolidated Financial Statements.

Recent Accounting Pronouncements Not Yet Adopted

Improvements to Reportable Segment Disclosures: In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (ASU 2023-07), which requires disclosure of incremental segment information on an annual and interim basis. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024 on a retrospective basis. The Company is currently evaluating the effect of this pronouncement on its disclosures.

Improvements to Income Tax Disclosures: In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which expands the disclosures required for income taxes. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendment should be applied on a prospective basis while retrospective application is permitted. The Company is currently evaluating the effect of this pronouncement on its disclosures.

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ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Feb. 29, 2024

ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

Schedule of financial instruments

	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,			February 28,
	2024			2023			2024			2023
Customer A		59.6	%		82.5	%		65.8	%		77.5	%
Customer B		19.3	%		11.6	%	*				15.7	%
Customer C	*			*				17.2	%	*

	February 29,			May 31,
	2024			2023
Customer A		70.2	%		81.6	%
Customer B		18.0	%	*
Customer C	*				16.5	%

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Feb. 29, 2024

FAIR VALUE OF FINANCIAL INSTRUMENTS

Fair value by hierarchy

	Balance as of
(In thousands)	February 29, 2024		Level 1		Level 2		Level 3
Money market funds	$	44,189	$	44,189	$	-	$	-
Total	$	44,189	$	44,189	$	-	$	-

	Balance as of
(In thousands)	May 31, 2023		Level 1		Level 2		Level 3
Money market funds	$	27,022	$	27,022	$	-	$	-
U. S. treasury securities		17,853		17,853		-		-
Total	$	44,875	$	44,875	$	-	$	-

Cash, cash equivalents and investments by security type

			Gross
Balances as of February 29, 2024			Unrealized		Estimated
(In thousands)	Cost		Loss		Fair Value
Cash	$	3,542	$	-	$	3,542
Cash equivalents:
Money market funds	$	44,039	$	-	$	44,039
Total cash and cash equivalents	$	47,581	$	-	$	47,581
Long-term investments:
Money market funds	$	150	$	-	$	150
Total cash, cash equivalents and investments	$	47,731	$	-	$	47,731

			Gross
Balances as of May 31, 2023			Unrealized			Estimated
(In thousands)	Cost		Loss			Fair Value
Cash	$	3,182	$	-		$	3,182
Cash equivalents:
Money market funds	$	26,872	$	-		$	26,872
Total cash and cash equivalents	$	30,054	$	-		$	30,054
Short term investments:
U. S. treasury securities	$	17,870	$	(17	)	$	17,853
Long-term investments:
Money market funds	$	150	$	-		$	150
Total cash, cash equivalents and investments	$	48,074	$	(17	)	$	48,057

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BALANCE SHEET INFORMATION (Tables)

9 Months Ended

Feb. 29, 2024

BALANCE SHEET INFORMATION

Inventories

	February 29,		May 31,
(In thousands)	2024		2023
Raw materials and sub-assemblies	$	24,770	$	15,953
Work in process		11,080		5,764
Finished goods		2,235		2,191
	$	38,085	$	23,908

Property and equipment, net

	Useful life	February 29,			May 31,
(In thousands)	(in years)	2024			2023
Leasehold improvements	*	$	1,643		$	1,310
Machinery and equipment	3 - 5		5,775			5,445
Test equipment	4 - 5		3,030			2,998
Furniture and fixtures	2 - 5		717			706
			11,165			10,459
Less: accumulated depreciation and amortization			(8,015	)		(7,700	)
		$	3,150		$	2,759

Liability for product warranties

	Three Months Ended						Nine Months Ended
	February 29,			February 28,			February 29,			February 28,
(In thousands)	2024			2023			2024			2023
Balance at the beginning of the period	$	221		$	311		$	267		$	410
Accruals for warranties issued during the period		117			84			344			207
Adjustments to previously existing warranty accruals		-			-			-			61
Consumption of reserves		(123	)		(107	)		(396	)		(390	)
Balance at the end of the period	$	215		$	288		$	215		$	288

Customer deposits and deferred revenue, short-term

	February 29,		May 31,
(In thousands)	2024		2023
Customer deposits	$	418	$	2,690
Deferred revenue		68		132
	$	486	$	2,822

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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

9 Months Ended

Feb. 29, 2024

ACCUMULATED OTHER COMPREHENSIVE LOSS

Schedule of Changes in the components of accumulated other comprehensive loss, net of tax

	Cumulative			Unrealized loss
(In thousands)	translation adjustment			on investments, net			Total
Balance as of May 31, 2023	$	(138	)	$	(17	)	$	(155	)
Other comprehensive income (loss) before reclassifications		(6	)		17			11
Balance as of February 29,  2024	$	(144	)	$	-		$	(144	)

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REVENUE (Tables)

9 Months Ended

Feb. 29, 2024

REVENUE

Disaggregation of revenue

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Asia	$	5,167	$	14,849	$	43,320	$	34,873
United States		1,640		2,343		3,105		7,761
Europe		756		14		3,193		58
	$	7,563	$	17,206	$	49,618	$	42,692

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Systems	$	1,971	$	9,821	$	20,750	$	26,315
Contactors		4,759		6,299		25,174		13,400
Services		833		1,086		3,694		2,977
	$	7,563	$	17,206	$	49,618	$	42,692

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Timing of revenue recognition:
Products and services transferred at a point in time	$	7,240	$	16,863	$	48,225	$	41,523
Services transferred over time		323		343		1,393		1,169
	$	7,563	$	17,206	$	49,618	$	42,692

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STOCKBASED COMPENSATION (Tables)

9 Months Ended

Feb. 29, 2024

STOCK-BASED COMPENSATION

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

	Three Months Ended				Nine Months Ended
	February 29,		February 28,		February 29,		February 28,
(In thousands)	2024		2023		2024		2023
Cost of sales	$	58	$	75	$	222	$	252
Research and development		148		158		440		513
Selling, general and administrative		377		359		1,081		1,330
	$	583	$	592	$	1,743	$	2,095

Nonvested RSU activity

				Weighted
				Average Grant
				Date Fair
	Shares			Value
	(in thousands)			Per Share
Unvested, May 31, 2023		345		$	6.40
Granted		-
Vested		(77	)		7.16
Forfeited		(52	)		5.79
Unvested, August 31, 2023		216		$	6.27
Granted		203			31.51
Vested		(28	)		8.02
Forfeited		(1	)		29.79
Unvested, November 30, 2023		390		$	19.28
Granted		1			22.57
Vested		(32	)		12.42
Forfeited		(6	)		6.21
Unvested, February 29, 2024		353		$	20.16

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NET INCOME (LOSS) PER SHARE (Tables)

9 Months Ended

Feb. 29, 2024

Net income (loss) per share:

Net income (loss) earnings per share

	Three Months Ended					Nine Months Ended
	February 29,			February 28,		February 29,		February 28,
(In thousands, except per share data)	2024			2023		2024		2023
Numerator:
Net income (loss)	$	(1,471	)	$	4,132	$	9,292	$	8,446
Denominator:
Basic weighted average shares outstanding		28,866			27,893		28,773		27,571
Dilutive effect of common equivalent shares outstanding		-			1,480		897		1,509
Diluted weighted average shares outstanding		28,866			29,373		29,670		29,080
Net income per share - Basic	$	(0.05	)	$	0.15	$	0.32	$	0.31
Net income per share - Diluted	$	(0.05	)	$	0.14	$	0.31	$	0.29
Antidilutive employee share-based award shares, excluded		1,203			15		71		15

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SEGMENT AND CONCENTRATION INFORMATION (Tables)

9 Months Ended

Feb. 29, 2024

SEGMENT AND CONCENTRATION INFORMATION

Property and equipment by geographic region

	February 29,		May 31,
(In thousands)	2024		2023
United States	$	3,015	$	2,713
International		135		46
Total long-lived assets, net	$	3,150	$	2,759

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ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Details)	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	May 31, 2023	Feb. 28, 2023
Revenue | Customer B
Concentration Risk, Percentage	19.30%	11.60%			15.70%
Revenue | Customer C
Concentration Risk, Percentage			17.20%
Revenue | Customer A
Concentration Risk, Percentage	59.60%	82.50%	65.80%		77.50%
Accounts Receivable | Customer B
Concentration Risk, Percentage			18.00%
Accounts Receivable | Customer C
Concentration Risk, Percentage				16.50%
Accounts Receivable | Customer A
Concentration Risk, Percentage			70.20%	81.60%

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ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)	9 Months Ended
	Feb. 29, 2024	May 31, 2023
Allowance for credit losses	$ 0	$ 0
Revenue [Member]
Concentration risk	10.00%

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands	Feb. 29, 2024	May 31, 2023
Assets [Member]
Investment securities	$ 44,189	$ 44,875
U.S. treasury securities
Investment securities		17,853
Level 1 [Member] | Assets [Member]
Investment securities	44,189	44,875
Level 2 [Member] | Assets [Member]
Investment securities	0	0
Level 3 [Member] | Assets [Member]
Investment securities	0	0
Money Market Funds
Investment securities	44,189	27,022
Money Market Funds | Level 1 [Member]
Investment securities	44,189	27,022
Money Market Funds | Level 2 [Member]
Investment securities	0	0
Money Market Funds | Level 3 [Member]
Investment securities	$ 0	0
US Treasury Securities | Level 1 [Member]
Investment securities		$ 17,853

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 1) - USD ($) $ in Thousands	Feb. 29, 2024	May 31, 2023	Feb. 28, 2023	May 31, 2022
Total cash and cash equivalents	$ 47,581	$ 30,054
Total cash, cash equivalents and investments	47,731	30,204	$ 17,338	$ 31,564
Short-term Investments	0	17,853
Cost [Member]
Cash	3,542	3,182
Total cash and cash equivalents	47,581	30,054
Total cash, cash equivalents and investments	47,731	48,074
Cost [Member] | Money Market Funds
Cash equivalents	44,039	26,872
Long-term investments	150	150
Cost [Member] | U S Treasury Securities [Member]
Short-term Investments		17,870
Gross Unrealized Loss
Cash	0	0
Total cash and cash equivalents	0	0
Total cash, cash equivalents and investments	0	(17)
Gross Unrealized Loss | Money Market Funds
Cash equivalents	0	0
Long-term investments	0	0
Gross Unrealized Loss | U S Treasury Securities [Member]
Short-term Investments		(17)
Estimated Fair Value [Member]
Cash	3,542	3,182
Total cash and cash equivalents	47,581	30,054
Total cash, cash equivalents and investments	47,731	48,057
Estimated Fair Value [Member] | Money Market Funds
Cash equivalents	44,039	26,872
Long-term investments	$ 150	150
Estimated Fair Value [Member] | U S Treasury Securities [Member]
Short-term Investments		$ 17,853

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details Narrative) - USD ($)	3 Months Ended
	Aug. 31, 2023	Feb. 29, 2024	May 31, 2023
FAIR VALUE OF FINANCIAL INSTRUMENTS
Transfer between Level 1 and Level 2 fair value measurements	$ 0
Restricted cash		$ 150,000	$ 150,000
Financial liabilities at fair value		$ 0	$ 0

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BALANCE SHEET INFORMATION (Details) - USD ($) $ in Thousands	Feb. 29, 2024	May 31, 2023
BALANCE SHEET INFORMATION
Raw materials and sub-assemblies	$ 24,770	$ 15,953
Work in process	11,080	5,764
Finished goods	2,235	2,191
Inventories	$ 38,085	$ 23,908

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BALANCE SHEET INFORMATION (Details 1) - USD ($) $ in Thousands	Feb. 29, 2024	May 31, 2023
BALANCE SHEET INFORMATION
Leasehold improvements	$ 1,643	$ 1,310
Furniture and fixtures	717	706
Machinery and equipment	5,775	5,445
Test equipment	3,030	2,998
Property and equipment, gross	11,165	10,459
Less: Accumulated depreciation and amortization	(8,015)	(7,700)
Property and equipment, net	$ 3,150	$ 2,759

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BALANCE SHEET INFORMATION (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
BALANCE SHEET INFORMATION
Balance at the beginning of the period	$ 221	$ 311	$ 267	$ 410
Accruals for warranties issued during the period	117	84	344	207
Adjustments to previously existing warranty accruals	0	0	0	61
Consumption of reserves	(123)	(107)	(396)	(390)
Balance at the End of the period	$ 215	$ 288	$ 215	$ 288

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BALANCE SHEET INFORMATION (Details 3) - USD ($) $ in Thousands	Feb. 29, 2024	May 31, 2023
BALANCE SHEET INFORMATION
Customer deposits	$ 418	$ 2,690
Deferred revenue	68	132
Deferred revenue, short-term	$ 486	$ 2,822

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INCOME TAXES (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
INCOME TAX
Provision for income taxes	$ 7	$ 17	$ 43	$ 49

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BORROWING ARRANGEMENTS (Details Narrative) $ in Millions	9 Months Ended
	Feb. 29, 2024 USD ($)
Original Loan and Security Agreement
Line of Credit, maximum borrowing	$ 4.0
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%
Second Amendment To Loan And Security Agreement
Line of Credit, maximum borrowing	$ 10.0
Variable interest rate	the greater of (a) prime rate plus an additional percentage up to 1.0%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 3.25%, reduces the interest rate for purchase order advances under the line to the greater of (a) prime rate plus an additional percentage up to 1.5%, which additional percentage depends on the Company’s adjusted quick ratio, and (b) 3.75%
Revolving line maturity date	Jan. 13, 2023
First Amendment to Loan and Security Agreement
Revolving line maturity date	Jan. 13, 2022
Third Amendment to Loan and Security Agreement
Revolving line maturity date	Jan. 13, 2025
Revolving line termination date	January 4, 2024
Minimum liquidity net	$ 20.0

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SHAREHOLDERS EQUITY (Details Narrative) - USD ($) $ / shares in Units, $ in Millions	Feb. 08, 2023	Oct. 08, 2021	Feb. 29, 2024	Aug. 25, 2021
SHAREHOLDERS EQUITY
Sale of common stock price per share	$ 34.78	$ 14.73
Sale of common stock shares	208,917	1,696,729
Gross proceeds	$ 7.3	$ 25.0
Commission fees	0.2	0.7
Offering expenses	$ 0.2	$ 0.3
Remaining amount of the ATM offering			$ 17.7
Shelf registration amount				$ 75.0

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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) $ in Thousands	9 Months Ended
	Feb. 29, 2024 USD ($)
Balance at the beginning of the year	$ (155)
Other comprehensive loss before reclassifications	11
Balance at the ending of the year	(144)
Unrealized Loss on Investments Net [Member]
Balance at the beginning of the year	(17)
Other comprehensive loss before reclassifications	17
Balance at the ending of the year	0
Cumulative Translation Adjustments [Member]
Balance at the beginning of the year	(138)
Other comprehensive loss before reclassifications	(6)
Balance at the ending of the year	$ (144)

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REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Net sales	$ 7,563	$ 17,206	$ 49,618	$ 42,692
Europe
Net sales	756	14	3,193	58
Asia
Net sales	5,167	14,849	43,320	34,873
US [Member]
Net sales	$ 1,640	$ 2,343	$ 3,105	$ 7,761

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REVENUE (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Net sales	$ 7,563	$ 17,206	$ 49,618	$ 42,692
Systems [Member]
Net sales	1,971	9,821	20,750	26,315
Services [Member]
Net sales	833	1,086	3,694	2,977
Contactors [Member]
Net sales	$ 4,759	$ 6,299	$ 25,174	$ 13,400

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REVENUE (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Net sales	$ 7,563	$ 17,206	$ 49,618	$ 42,692
Products And Services Transferred At A Point In Time [Member]
Net sales	7,240	16,863	48,225	41,523
Services Transferred over Time [Member]
Net sales	$ 323	$ 343	$ 1,393	$ 1,169

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REVENUE (Details Narrative) - USD ($)	3 Months Ended	9 Months Ended
	Feb. 29, 2024	Feb. 29, 2024	May 30, 2025	May 30, 2024	May 31, 2023
Contract liabilities	$ 486,000	$ 486,000			$ 2,853,000
Contract assets	345,000	345,000
Recognition of contract liabilities	31,000	2,802,000
Remaining performance obligations	$ 68,000	$ 68,000
Scenario Forecast [Member] | Subsequent Event
Remaining performance obligation revenue recognition			69.80%	30.20%

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STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Total stock-based compensation	$ 583	$ 592	$ 1,743	$ 2,095
Cost of Sales
Total stock-based compensation	58	75	222	252
Selling, General and Administrative
Total stock-based compensation	377	359	1,081	1,330
Research and Development
Total stock-based compensation	$ 148	$ 158	$ 440	$ 513

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STOCK-BASED COMPENSATION (Details 1) - Nonvested RSU Activty - $ / shares shares in Thousands	3 Months Ended
	Feb. 29, 2024	Nov. 30, 2023	Aug. 31, 2023
Unvested May 31, 2023, beginning (in thousands)	390	216	345
Shares, Granted (in thousands)	1	203
Shares, Vested (in thousands)	(32)	(28)	(77)
Shares, Forfeited (in thousands)	(6)	(1)	(52)
Unvested February 29, 2024, ending (in thousands)	353	390	216
Weighted Average Grant Date Fair Value Per Share, beginning	$ 19.28	$ 6.27	$ 6.40
Granted	22.57	31.51
Vested	12.42	8.02	7.16
Forfeited	6.21	29.79	5.79
Weighted Average Grant Date Fair Value Per Share, Ending	$ 20.16	$ 19.28	$ 6.27

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STOCK-BASED COMPENSATION (Details Narrative) - USD ($)	9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	May 31, 2023
STOCK-BASED COMPENSATION
Awards shares issued	1,500,000
Stock-based compensation expense capitalized	$ 252,000		$ 120,000
Employee stock purchase plan shares available for issuance	373,000	499,000
Employee stock purchase plan shares issued	24,000	109,000

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NET INCOME (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2024	Feb. 28, 2023
Net income (loss) per share:
Net income	$ (1,471)	$ 4,132	$ 9,292	$ 9,292	$ 8,446
Denominator: Weighted average shares outstanding	28,866,000	27,893,000	28,773,000		27,571,000
Dilutive effect of common equivalent shares outstanding	0	1,480,000	897,000		1,509,000
Denominator: Diluted weighted average shares outstanding	28,866,000	29,373,000	29,670,000		29,080,000
Basic net income (loss) per share	$ (0.05)	$ 0.15	$ 0.32		$ 0.31
Diluted net income (loss) per share	$ (0.05)	$ 0.14	$ 0.31		$ 0.29
Antidilutive employee share-based award shares, excluded	1,203,000	15,000	71,000		15,000

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SEGMENT AND CONCENTRATION INFORMATION (Details) - USD ($) $ in Thousands	Feb. 29, 2024	May 31, 2023
Property and equipment, net	$ 3,150	$ 2,759
US [Member]
Property and equipment, net	3,015	2,713
International
Property and equipment, net	$ 135	$ 46