inTEST (INTT) 10-Q 11 May 23 2023 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2023	May 01, 2023
Document Information [Line Items]
Entity Central Index Key	0001036262
Entity Registrant Name	INTEST CORP
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2023
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	1-36117
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	22-2370659
Entity Address, Address Line One	804 East Gate Drive, Suite 200
Entity Address, City or Town	Mt. Laurel
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	08054
City Area Code	856
Local Phone Number	505-8800
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	INTT
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		11,131,366

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 15,428	$ 13,434
Restricted cash	516	1,142
Trade accounts receivable, net of allowance for credit losses of $497 and $496, respectively	20,991	21,215
Inventories	24,489	22,565
Prepaid expenses and other current assets	2,445	1,695
Total current assets	63,869	60,051
Property and equipment:
Machinery and equipment	6,742	6,625
Leasehold improvements	3,424	3,242
Gross property and equipment	10,166	9,867
Less: accumulated depreciation	(6,959)	(6,735)
Net property and equipment	3,207	3,132
Right-of-use assets, net	5,506	5,770
Goodwill	21,636	21,605
Net Carrying Amount	18,046	18,559
Deferred tax assets	684	280
Restricted certificates of deposit	100	100
Other assets	468	569
Total assets	113,516	110,066
Current liabilities:
Current portion of Term Note	4,100	4,100
Current portion of operating lease liabilities	1,714	1,645
Accounts payable	7,801	7,394
Accrued wages and benefits	3,257	3,907
Accrued professional fees	743	884
Customer deposits and deferred revenue	5,448	4,498
Accrued sales commissions	1,249	1,468
Domestic and foreign income taxes payable	2,273	1,409
Other current liabilities	1,611	1,564
Total current liabilities	28,196	26,869
Operating lease liabilities, net of current portion	4,338	4,705
Term Note, net of current portion	11,017	12,042
Contingent consideration	1,042	1,039
Other liabilities	425	455
Total liabilities	45,018	45,110
Commitments and Contingencies
Stockholders' equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.01 par value; 20,000,000 shares authorized; 11,168,080 and 11,063,271 shares issued, respectively	112	111
Additional paid-in capital	32,673	31,987
Retained earnings	35,671	32,854
Accumulated other comprehensive earnings	289	218
Treasury stock, at cost; 36,329 and 34,308 shares, respectively	(247)	(214)
Total stockholders' equity	68,498	64,956
Total liabilities and stockholders' equity	$ 113,516	$ 110,066

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Allowance for doubtful accounts	$ 497	$ 496
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares issued (in shares)	11,168,080	11,063,271
Treasury stock, shares (in shares)	36,329	34,308

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue	$ 31,919	$ 24,081
Cost of revenue	16,867	13,068
Gross profit	15,052	11,013
Operating expenses:
Selling expense	4,455	3,456
Engineering and product development expense	1,904	1,924
General and administrative expense	5,175	4,831
Total operating expenses	11,534	10,211
Operating income	3,518	802
Interest expense	(182)	(137)
Other income (expense)	58	(10)
Earnings before income tax expense	3,394	655
Income tax expense	577	78
Net earnings	$ 2,817	$ 577
Earnings per common share – basic (in dollars per share)	$ 0.26	$ 0.05
Weighted average common shares outstanding – basic (in shares)	10,755,729	10,617,271
Earnings per common share – diluted (in dollars per share)	$ 0.25	$ 0.05
Weighted average common shares and common share equivalents outstanding – diluted (in shares)	11,088,664	10,842,592

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net earnings	$ 2,817	$ 577
Unrealized gain (loss) on interest rate swap agreement	(99)	289
Foreign currency translation adjustments	170	(116)
Comprehensive earnings	$ 2,888	$ 750

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2021	10,910,460
Balance at Dec. 31, 2021	$ 109	$ 29,931	$ 24,393	$ 594	$ (204)	$ 54,823
Net earnings	0	0	577	0	0	577
Other comprehensive earnings	0	0	0	173	0	173
Amortization of deferred compensation related to stock-based awards	$ 0	372	0	0	0	372
Issuance of unvested shares of restricted stock (in shares)	79,489
Issuance of unvested shares of restricted stock	$ 1	(1)	0	0		0
Shares issued under Employee Stock Purchase Plan (in shares)	5,245
Shares issued under Employee Stock Purchase Plan	$ 0	56	0	0	0	56
Balance (in shares) at Mar. 31, 2022	10,995,194
Balance at Mar. 31, 2022	$ 110	30,358	24,970	767	(204)	56,001
Balance (in shares) at Dec. 31, 2022	11,063,271
Balance at Dec. 31, 2022	$ 111	31,987	32,854	218	(214)	64,956
Net earnings	0	0	2,817	0	0	2,817
Other comprehensive earnings	0	0	0	71	0	71
Amortization of deferred compensation related to stock-based awards	$ 0	474	0	0	0	474
Issuance of unvested shares of restricted stock (in shares)	90,588
Issuance of unvested shares of restricted stock	$ 1	(1)	0	0	0	0
Forfeiture of unvested shares of restricted stock (in shares)	(13,271)
Forfeiture of unvested shares of restricted stock	$ 0	0	0	0	0	$ 0
Stock options exercised (in shares)	25,200					25,200
Stock options exercised	$ 0	165	0	0	0	$ 165
Shares issued under Employee Stock Purchase Plan (in shares)	2,292
Shares issued under Employee Stock Purchase Plan	$ 0	48	0	0	0	48
Shares surrendered to satisfy tax liability at vesting of stock-based awards	$ 0	0	0	0	(33)	(33)
Balance (in shares) at Mar. 31, 2023	11,168,080
Balance at Mar. 31, 2023	$ 112	$ 32,673	$ 35,671	$ 289	$ (247)	$ 68,498

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 2,817	$ 577
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	1,176	1,279
Provision for excess and obsolete inventory	135	123
Foreign exchange (gain) loss	(18)	40
Amortization of deferred compensation related to stock-based awards	474	372
Discount on shares sold under Employee Stock Purchase Plan	(8)	(8)
Proceeds from sale of demonstration equipment, net of gain	6	19
Deferred income tax benefit	(404)	(438)
Changes in assets and liabilities:
Trade accounts receivable	291	(832)
Inventories	(2,038)	(2,177)
Prepaid expenses and other current assets	(740)	(374)
Other assets	2	(8)
Operating lease liabilities	(423)	(346)
Accounts payable	403	1,592
Accrued wages and benefits	(654)	(1,179)
Accrued professional fees	(142)	(520)
Customer deposits and deferred revenue	921	(608)
Accrued sales commissions	(221)	(20)
Domestic and foreign income taxes payable	864	(395)
Other current liabilities	43	40
Other liabilities	(16)	60
Net cash provided by (used in) operating activities	2,484	(2,787)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(334)	(335)
Net cash used in investing activities	(334)	(335)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from shares sold under Employee Stock Purchase Plan	40	48
Proceeds from stock options exercised	165	0
Acquisition of treasury stock – shares surrendered by employees to satisfy tax liability	(33)	0
Net cash used in financing activities	(853)	(835)
Effects of exchange rates on cash	71	(27)
Net cash provided by (used in) all activities	1,368	(3,984)
Cash, cash equivalents and restricted cash at beginning of period	14,576	21,195
Cash, cash equivalents and restricted cash at end of period	15,944	17,211
Cash payments for:
Domestic and foreign income taxes	118	966
Term Note [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of Term Note	$ (1,025)	$ (883)

Note 1 - Nature of Operations

Note 1 - Nature of Operations	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Nature of Operations [Text Block]	( 1 NATURE OF OPERATIONS We are a global supplier of innovative test and process technology solutions for use in manufacturing and testing across a wide range of markets including automotive, defense/aerospace, industrial, life sciences, security and semiconductor. We have three The consolidated entity is comprised of inTEST Corporation and our wholly-owned subsidiaries. We manufacture our products in the U.S., Canada and the Netherlands. Marketing and support activities are conducted worldwide from our facilities in the U.S., Canada, Germany, Singapore, the Netherlands and the U.K. We operate our business worldwide and sell our products both domestically and internationally. All of our operating segments have multiple products that we design, manufacture and market to our customers. Due to a number of factors, our products have varying levels of gross margin. The mix of products we sell in any period is ultimately determined by our customers' needs. Therefore, the mix of products sold in any given period can change significantly from the prior period. In addition, we sell our products to a variety of different types of customers with varying levels of discounts and commission expense. As a result of changes in both the mix of products sold as well as customer mix in any given period, our consolidated gross margin can vary significantly from period to period. The semiconductor market (“semi” or the “semi market”) which includes both the broader semiconductor market, as well as the more specialized automated test equipment (“ATE”) and wafer production sectors within the broader semiconductor market, has historically been the largest single market in which we operate. The semi market is characterized by rapid technological change, competitive pricing pressures and cyclical as well as seasonal market patterns. The semi market is also subject to periods of significant expansion or contraction in demand. In addition to the semi market, we sell into a variety of other markets. Our intention is to continue diversifying our markets, our product offerings within the markets we serve and our customer base across all of our markets with the goal of reducing our dependence on any one Our Electronic Test segment sells its products to semiconductor manufacturers and third third December 2021, Our financial results are affected by a wide variety of factors, including, but not may may may not may not may not may

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Significant Accounting Policies [Text Block]	( 2 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Use of Estimates The accompanying consolidated financial statements include our accounts and those of our wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated upon consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP") requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Certain of our accounts, including contingent consideration, inventories, long-lived assets, goodwill, identifiable intangibles and deferred tax assets and liabilities, including related valuation allowances, are particularly impacted by estimates. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the financial position, results of operations, and changes in cash flows for the interim periods presented. Certain footnote information has been condensed or omitted from these consolidated financial statements. Therefore, these consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying footnotes included in our Form 10 December 31, 2022 ( “2022 10 March 22, 2023 Reclassification Subsequent Events no three March 31, 2023. Business Combinations third Cash, Cash Equivalents and Restricted Cash Short-term investments that have maturities of three may not Restricted cash represents amounts deposited at our bank in the Netherlands to support a bank guarantee which one 2022. March 31, 2023 December 31, 2022, The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets and the consolidated statements of cash flows: March 31, 2023 December 31, 2022 Cash and cash equivalents $ 15,428 $ 13,434 Restricted cash 516 1,142 Total cash, cash equivalents and restricted cash $ 15,944 $ 14,576 Trade Accounts Receivable and Allowance for Credit Losses Trade accounts receivable are recorded at the invoiced amount and do not no January 1, 2023, 326 may not no three March 31, 2023 2022. Fair Value of Financial Instruments Our financial instruments include cash and cash equivalents, accounts receivable, accounts payable, accrued expenses, our credit facility, interest rate swaps and our liabilities for contingent consideration. Our cash and cash equivalents, accounts receivable, accounts payable and accrued expenses are carried at cost which approximates fair value, due to the short maturities of the accounts. Our credit facility and our interest rate swap are discussed further below and in Note 9. 820 820 3 Goodwill, Intangible and Long-Lived Assets three We account for goodwill and intangible assets in accordance with ASC Topic 350 fourth may not not not not not The quantitative goodwill impairment test compares the fair value of a reporting unit with its carrying amount, including goodwill. If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is considered not Indefinite-lived intangible assets are assessed for impairment annually at the beginning of the fourth not not no Long-lived assets, which consist of finite-lived intangible assets, property and equipment and right-of-use (“ROU”) assets, are assessed for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not no Revenue Recognition 606 may Revenue is recorded in an amount that reflects the consideration we expect to receive in exchange for those products or services. We do not 30 90 not Nature of Products and Services We are a global supplier of innovative test and process technology solutions for use in manufacturing and testing in targeted markets including automotive, defense/aerospace, industrial, life sciences, security and semiconductor. We sell thermal management products including ThermoStreams, ThermoChambers, process chillers, refrigerators and freezers, which we sell under our Temptronic, Sigma, Thermonics and North Sciences product lines, and Ambrell Corporation’s (“Ambrell”) precision induction heating systems, including EKOHEAT® and EASYHEAT TM We lease certain of our equipment under short-term leasing agreements with original lease terms of six not Types of Contracts with Customers Our contracts with customers are generally structured as individual purchase orders which specify the exact products or services being sold or equipment being leased along with the selling price, service fee or monthly lease amount for each individual item on the purchase order. Payment terms and any other customer-specific acceptance criteria are also specified on the purchase order. We generally do not Contract Balances We record accounts receivable at the time of invoicing. Accounts receivable, net of the allowance for credit losses, is included in current assets on our balance sheet. To the extent that we do not As discussed above, we follow the guidance in ASC Topic 326 Costs to Obtain a Contract with a Customer The only costs we incur associated with obtaining contracts with customers are sales commissions that we pay to our internal sales personnel or third third not Product Warranties In connection with the sale of our products, we generally provide standard one two not not See Notes 5 13 Inventories Inventories are valued at cost on a first first not three not twenty-four three March 31, 2023 2022, Leases We account for leases in accordance with ASC Topic 842 may not not 842. not ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. None may not We have lease agreements which contain both lease and non-lease components, which are generally accounted for separately. In addition to the monthly rental payments due, most of our leases for our offices and warehouse facilities include non-lease components representing our portion of the common area maintenance, property taxes and insurance charges incurred by the landlord for the facilities which we occupy. These amounts are not Operating lease payments are included in cash outflows from operating activities on our consolidated statements of cash flows. Amortization of ROU assets is presented separately from the change in operating lease liabilities and is included in Depreciation and Amortization on our consolidated statements of cash flows. We have made an accounting policy election not 842 one See Note 8 Interest Rate Swap Agreement We are exposed to interest rate risk on our floating-rate debt. We have entered into an interest rate swap agreement to effectively convert our floating-rate debt to a fixed-rate basis for a portion of our floating rate debt, as discussed further in Notes 3 9. 815 Contingent Liability for Repayment of State and Local Grant Funds Received In connection with leasing a facility in Rochester, New York, which our subsidiary, Ambrell, occupied in May 2018, three March 31, 2022. 2024. may March 31, 2023, not no March 31, 2023. March 31, 2023, Stock-Based Compensation 718 10. Income Taxes not not Earnings (Loss) Per Common Share The table below sets forth, for the periods indicated, a reconciliation of weighted average common shares outstanding - basic to weighted average common shares and common share equivalents outstanding - diluted and the average number of potentially dilutive securities that were excluded from the calculation of diluted earnings (loss) per share because their effect was anti-dilutive: Three Months Ended March 31, 2023 2022 Weighted average common shares outstanding–basic 10,755,729 10,617,271 Potentially dilutive securities: Unvested shares of restricted stock and employee stock options 332,935 225,321 Weighted average common shares and common share equivalents outstanding–diluted 11,088,664 10,842,592 Average number of potentially dilutive securities excluded from calculation 154,429 318,574 Effect of Recently Adopted Amendments to Authoritative Accounting Guidance In June 2016, November 2019, December 15, 2022. first January 1, 2023. not

Note 3 - Fair Value Measurement

Note 3 - Fair Value Measurements	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Fair Value Disclosures [Text Block]	( 3 FAIR VALUE MEASUREMENTS ASC Topic 820 ASC 820 820 three Level 1 Level 2 not Level 3 To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by us in determining fair value is greatest for instruments categorized in Level 3. Recurring Fair Value Measurements The interest rate swap agreement we entered into in connection with our Term Note, as discussed further in Notes 2 9 2 3 December 21, 2021, 3 2022 10 The following fair value hierarchy table presents information about assets and (liabilities) measured at fair value on a recurring basis: Amounts at Fair Value Measurement Using Fair Value Level 1 Level 2 Level 3 As of March 31, 2023 Contingent consideration liability – Acculogic $ (1,367 ) $ - $ - $ (1,367 ) Interest rate swap $ 429 $ - $ 429 $ - Amounts at Fair Value Measurement Using Fair Value Level 1 Level 2 Level 3 As of December 31, 2022 Contingent consideration liability – Acculogic $ (1,363 ) $ - $ - $ (1,363 ) Interest rate swap $ 528 $ - $ 528 $ - Changes in the fair value of our Level 3 three March 31, 2023 Three Months Ended March 31, 2023 Balance at beginning of period $ 1,363 Impact of foreign currency translation adjustments 4 Balance at end of period $ 1,367

Note 4 - Goodwill and Intangibl

Note 4 - Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	( 4 GOODWILL AND INTANGIBLE ASSETS We have three Goodwill three March 31, 2023 Balance - January 1, 2023 $ 21,605 Impact of foreign currency translation adjustments 31 Balance - March 31, 2023 $ 21,636 Goodwill was comprised of the following at March 31, 2023 December 31, 2022: March 31, December 31, 2023 2022 Electronic Test $ 3,377 $ 3,369 Environmental Technologies 1,817 1,817 Process Technologies 16,442 16,419 Total goodwill $ 21,636 $ 21,605 Intangible Assets three March 31, 2023 Balance - January 1, 2023 $ 8,369 Impact of foreign currency translation adjustments 6 Balance - March 31, 2023 $ 8,375 Changes in the amount of the carrying value of finite-lived intangible assets for the three March 31, 2023 Balance - January 1, 2023 $ 10,190 Impact of foreign currency translation adjustments 25 Amortization (544 ) Balance - March 31, 2023 $ 9,671 Intangible assets were allocated to our reporting segments at March 31, 2023 December 31, 2022 March 31, December 31, 2023 2022 Electronic Test 4,019 4,139 Environmental Technologies 823 832 Process Technologies 13,204 13,588 Total intangible assets $ 18,046 $ 18,559 The following tables provide further detail about our intangible assets as of March 31, 2023 December 31, 2022: March 31, 2023 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Customer relationships $ 16,334 $ 8,431 $ 7,903 Technology 2,863 1,095 1,768 Patents 590 590 - Backlog 494 494 - Software 270 270 - Trade name 140 140 - Total finite-lived intangible assets 20,691 11,020 9,671 Indefinite-lived intangible assets: Trademarks 8,375 - 8,375 Total intangible assets $ 29,066 $ 11,020 $ 18,046 December 31, 2022 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Customer relationships $ 16,313 $ 7,990 $ 8,323 Technology 2,855 988 1,867 Patents 590 590 - Backlog 492 492 - Software 270 270 - Trade name 140 140 - Total finite-lived intangible assets 20,660 10,470 10,190 Indefinite-lived intangible assets: Trademarks 8,369 - 8,369 Total intangible assets $ 29,029 $ 10,470 $ 18,559 We generally amortize our finite-lived intangible assets over their estimated useful lives based on the pattern in which the economic benefits of the intangible assets are expected to be consumed, or on a straight-line basis, if an alternate amortization method cannot be reliably determined. Any such alternate amortization method would be based on the pattern in which the economic benefits of the intangible asset are expected to be consumed. None The following table sets forth the estimated annual amortization expense for each of the next five 2023 (remainder) $ 1,549 2024 $ 1,971 2025 $ 1,762 2026 $ 1,153 2027 $ 658

Note 5 - Revenue From Contracts

Note 5 - Revenue From Contracts With Customers	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	( 5 REVENUE FROM CONTRACTS WITH CUSTOMERS The following tables provide additional information about our revenue from contracts with customers, including revenue by customer and product type and revenue by market. The information about revenue by customer and product type for the three March 31, 2022 13 Three Months Ended March 31, 2023 2022 Revenue by customer type: End user $ 21,594 $ 17,142 OEM/Integrator 10,215 6,939 $ 31,919 $ 24,081 Revenue by product type: Thermal test $ 5,820 $ 5,057 Thermal process 9,822 6,996 Semiconductor test 8,105 6,008 Video imaging 2,648 1,850 Flying probe and in-circuit testers 1,160 1,688 Service/other 4,364 2,482 $ 31,919 $ 24,081 Revenue by market: Semiconductor $ 17,683 $ 13,390 Industrial 3,137 2,799 Automotive (including Electric Vehicles) 2,597 2,756 Life Sciences 1,513 699 Defense/aerospace 2,839 1,493 Security 966 574 Other 3,184 2,370 $ 31,919 $ 24,081 There were no significant changes in the amount of the allowance for credit losses for the three March 31, 2023.

Note 6 - Major Customers

Note 6 - Major Customers	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	( 6 MAJOR CUSTOMERS During the three March 31, 2023, No 10% three March 31, 2023. three March 31, 2022, no 10%

Note 7 - Inventories

Note 7 - Inventories	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Inventory Disclosure [Text Block]	( 7 INVENTORIES Inventories held at March 31, 2023 December 31, 2022 March 31, 2023 December 31, 2022 Raw materials $ 18,465 $ 16,888 Work in process 2,372 2,432 Inventory consigned to others 52 59 Finished goods 3,600 3,186 Total inventories $ 24,489 $ 22,565

Note 8 - Leases

Note 8 - Leases	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	( 8 LEASES As previously discussed in Note 2, 842. 2031. three March 31, 2023 2022, Three Months Ended March 31, 2023 2022 Operating lease cost $ 400 $ 326 Short-term lease cost $ 3 $ 30 The following is additional information about our leases as of March 31, 2023: Range of remaining lease terms (in years) .3 to 8.1 Weighted average remaining lease term (in years) 4.8 Weighted average discount rate 4.4% Maturities of lease liabilities as of March 31, 2023 2023 $ 1,454 2024 1,892 2025 994 2026 694 2027 696 Thereafter 944 Total lease payments $ 6,674 Less imputed interest (622 ) Total $ 6,052 Cash Flow Information Total amortization of ROU assets for the three March 31, 2023 2022 During the three March 31, 2023, one

Note 9 - Debt

Note 9 - Debt	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Debt Disclosure [Text Block]	( 9 DEBT Letters of Credit 30 not one March 31, 2023 December 31, 2022 L/C Lease Letters of Credit Amount Outstanding Facility Original L/C Issue Date Expiration Date Expiration Date Mar. 31, 2023 Dec. 31, 2022 Mt. Laurel, NJ 3/29/2010 4/30/2024 4/30/2031 $ 50 $ 50 Mansfield, MA 10/27/2010 12/31/2024 12/31/2024 50 50 $ 100 $ 100 Credit Facility On October 15, 2021 ( October 28, 2021, December 30, 2021, The Loan Agreement included a $25,000 non-revolving delayed draw term note (the “Term Note”) and a $10,000 revolving credit facility (the “Revolving Facility” and together with the Term Note, the “Credit Facility”). The Credit Facility had a five October 15, 2026, two On September 20, 2022, may March 31, 2023 September 19, 2027 ( March 31, 2023, not The principal balance of the Revolving Facility and the principal balance of any amount drawn under the Term Note accrues interest based on the secured overnight financing rate for U.S. government securities (“SOFR”) or a bank-defined base rate plus an applicable margin, depending on leverage. Each draw under the Term Note will have an option for us of either (i) up to a five five seven five three March 31, 2023 2022 not On October 28, 2021, five On December 29, 2021, not March 31, 2023, May 1, 2023, The following table sets forth the maturities of long-term debt for each of the next five 2023 (remainder) $ 3,075 2024 4,100 2025 4,100 2026 3,842 $ 15,117

Note 10 - Stock-based Compensat

Note 10 - Stock-based Compensation Plan	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Share-Based Payment Arrangement [Text Block]	( 10 STOCK-BASED COMPENSATION PLAN As of March 31, 2023, 15 2022 10 Our unvested restricted stock awards and stock options are accounted for based on their grant date fair value. As of March 31, 2023, The following table summarizes the compensation expense we recorded during the three March 31, 2023 2022 Three Months Ended March 31, 2023 2022 Cost of revenue $ 19 $ 11 Selling expense 10 7 Engineering and product development expense 10 19 General and administrative expense 435 335 $ 474 $ 372 There was no compensation expense capitalized in three March 31, 2023 2022. Stock Options No may ten four three March 31, 2023 2022 2023 2022 Risk-free interest rate 3.94 % 1.81 % Dividend yield 0.00 % 0.00 % Expected common stock market price volatility factor .57 .54 Weighted average expected life of stock options (years) 6.25 6.25 The per share weighted average fair value of stock options issued during the three March 31, 2023 2022 The following table summarizes the activity related to stock options for the three March 31, 2023: Number of Shares Weighted Average Exercise Price Options outstanding, January 1, 2023 ( 167,886 580,419 $ 8.91 Granted 90,392 16.06 Exercised (25,200 ) 6.55 Canceled (23,859 ) 9.09 Options outstanding, March 31, 2023 ( 185,246 621,752 10.04 Restricted Stock Awards four one March 31, June 30, September 30, December 31 Since August 2020, On August 24, 2020, two third August 24, 2020. March 31, 2023, On March 10, 2021, third March 10, 2021. March 31, 2023, not first 2023 On June 14, 2021, two August 24, 2023 June 14, 2021. March 31, 2023, On October 1, 2021, January 1, 2025 October 1, 2021. March 31, 2023, On March 9, 2022, third March 9, 2022. March 31, 2023, On March 8, 2023, two third March 8, 2023. December 31, 2025 March 31, 2023, The following table summarizes the activity related to unvested restricted stock awards for the three March 31, 2023: Number of Shares Weighted Average Grant Date Fair Value Unvested shares outstanding, January 1, 2023 288,450 $ 7.80 Granted 90,588 16.06 Vested (21,066 ) 12.21 Forfeited (13,271 ) 9.88 Unvested shares outstanding, March 31, 2023 344,701 9.71 The total fair value of the restricted stock awards that vested during the three March 31, 2023 2022

Note 11 - Employee Stock Purcha

Note 11 - Employee Stock Purchase Plan	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Employee Stock Purchase Plan [Text Block]	( 11 EMPLOYEE STOCK PURCHASE PLAN The inTEST Corporation Employee Stock Purchase Plan (the “ESPP”) was adopted by the Board in April 2021 June 23, 2021 October 1, 2021. The ESPP provides that an aggregate of up to 250,000 shares of our common stock will be available for issuance under the ESPP. The shares of our common stock purchasable under the ESPP will be shares of authorized but unissued or reacquired shares, including shares repurchased by us on the open market. On March 31, 2023, March 31, 2023,

Note 12 - Employee Benefit Plan

Note 12 - Employee Benefit Plans	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Retirement Benefits [Text Block]	( 12 EMPLOYEE BENEFIT PLANS We have defined contribution 401 18 four three March 31, 2023 2022 All permanent employees of Ambrell are immediately eligible to participate in the Ambrell Corporation Savings & Profit Sharing Plan (the "Ambrell Plan") upon employment and are eligible for employer matching contributions after completing six three March 31, 2023 2022

Note 13 - Segment Information

Note 13 - Segment Information	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	( 13 SEGMENT INFORMATION We have three third Our management team, including our CEO who is also our Chief Operating Decision Maker as defined under U.S. GAAP, evaluates the performance of our operating segments primarily on income from divisional operations which represents earnings before income tax expense and excludes interest expense, other income (expense), corporate expenses and acquired intangible amortization. Three Months Ended March 31, 2023 2022 Revenue: Electronic Test $ 10,371 $ 8,778 Environmental Technologies 8,042 6,993 Process Technologies 13,506 8,310 Total revenue $ 31,919 $ 24,081 Income from divisional operations: Electronic Test $ 2,578 $ 1,887 Environmental Technologies 1,013 802 Process Technologies 2,676 730 Total income from divisional operations 6,267 3,419 Corporate expenses (2,205 ) (1,835 ) Acquired intangible amortization (544 ) (782 ) Interest expense (182 ) (137 ) Other income (expense) 58 (10 ) Earnings before income tax expense $ 3,394 $ 655 March 31, December 31, 2023 2022 Identifiable assets: Electronic Test $ 31,303 $ 31,143 Environmental Technologies 18,362 18,040 Process Technologies 57,672 56,866 Corporate 6,179 4,017 $ 113,516 $ 110,066 The following table provides information about our geographic areas of operation. Revenue is based on the location to which the goods are shipped. Three Months Ended March 31, 2023 2022 Revenue: U.S. $ 11,090 $ 9,234 Foreign 20,829 14,847 $ 31,919 $ 24,081 March 31, December 31, 2023 2022 Property and equipment: U.S. $ 2,537 $ 2,658 Foreign 670 474 $ 3,207 $ 3,132

Significant Accounting Policies

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Basis Of Presentation And Use Of Estimates [Policy Text Block]	Basis of Presentation and Use of Estimates The accompanying consolidated financial statements include our accounts and those of our wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated upon consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP") requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Certain of our accounts, including contingent consideration, inventories, long-lived assets, goodwill, identifiable intangibles and deferred tax assets and liabilities, including related valuation allowances, are particularly impacted by estimates. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the financial position, results of operations, and changes in cash flows for the interim periods presented. Certain footnote information has been condensed or omitted from these consolidated financial statements. Therefore, these consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying footnotes included in our Form 10 December 31, 2022 ( “2022 10 March 22, 2023
Reclassification, Comparability Adjustment [Policy Text Block]	Reclassification
Subsequent Events, Policy [Policy Text Block]	Subsequent Events no three March 31, 2023.
Business Combinations Policy [Policy Text Block]	Business Combinations third
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]	Cash, Cash Equivalents and Restricted Cash Short-term investments that have maturities of three may not Restricted cash represents amounts deposited at our bank in the Netherlands to support a bank guarantee which one 2022. March 31, 2023 December 31, 2022, The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets and the consolidated statements of cash flows: March 31, 2023 December 31, 2022 Cash and cash equivalents $ 15,428 $ 13,434 Restricted cash 516 1,142 Total cash, cash equivalents and restricted cash $ 15,944 $ 14,576
Receivable [Policy Text Block]	Trade Accounts Receivable and Allowance for Credit Losses Trade accounts receivable are recorded at the invoiced amount and do not no January 1, 2023, 326 may not no three March 31, 2023 2022.
Fair Value Measurement, Policy [Policy Text Block]	Fair Value of Financial Instruments Our financial instruments include cash and cash equivalents, accounts receivable, accounts payable, accrued expenses, our credit facility, interest rate swaps and our liabilities for contingent consideration. Our cash and cash equivalents, accounts receivable, accounts payable and accrued expenses are carried at cost which approximates fair value, due to the short maturities of the accounts. Our credit facility and our interest rate swap are discussed further below and in Note 9. 820 820 3
Goodwill Intangible And Long Lived Assets [Policy Text Block]	Goodwill, Intangible and Long-Lived Assets three We account for goodwill and intangible assets in accordance with ASC Topic 350 fourth may not not not not not The quantitative goodwill impairment test compares the fair value of a reporting unit with its carrying amount, including goodwill. If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is considered not Indefinite-lived intangible assets are assessed for impairment annually at the beginning of the fourth not not no Long-lived assets, which consist of finite-lived intangible assets, property and equipment and right-of-use (“ROU”) assets, are assessed for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not no
Revenue [Policy Text Block]	Revenue Recognition 606 may Revenue is recorded in an amount that reflects the consideration we expect to receive in exchange for those products or services. We do not 30 90 not Nature of Products and Services We are a global supplier of innovative test and process technology solutions for use in manufacturing and testing in targeted markets including automotive, defense/aerospace, industrial, life sciences, security and semiconductor. We sell thermal management products including ThermoStreams, ThermoChambers, process chillers, refrigerators and freezers, which we sell under our Temptronic, Sigma, Thermonics and North Sciences product lines, and Ambrell Corporation’s (“Ambrell”) precision induction heating systems, including EKOHEAT® and EASYHEAT TM We lease certain of our equipment under short-term leasing agreements with original lease terms of six not Types of Contracts with Customers Our contracts with customers are generally structured as individual purchase orders which specify the exact products or services being sold or equipment being leased along with the selling price, service fee or monthly lease amount for each individual item on the purchase order. Payment terms and any other customer-specific acceptance criteria are also specified on the purchase order. We generally do not Contract Balances We record accounts receivable at the time of invoicing. Accounts receivable, net of the allowance for credit losses, is included in current assets on our balance sheet. To the extent that we do not As discussed above, we follow the guidance in ASC Topic 326 Costs to Obtain a Contract with a Customer The only costs we incur associated with obtaining contracts with customers are sales commissions that we pay to our internal sales personnel or third third not Product Warranties In connection with the sale of our products, we generally provide standard one two not not See Notes 5 13
Inventory, Policy [Policy Text Block]	Inventories Inventories are valued at cost on a first first not three not twenty-four three March 31, 2023 2022,
Lessee, Leases [Policy Text Block]	Leases We account for leases in accordance with ASC Topic 842 may not not 842. not ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. None may not We have lease agreements which contain both lease and non-lease components, which are generally accounted for separately. In addition to the monthly rental payments due, most of our leases for our offices and warehouse facilities include non-lease components representing our portion of the common area maintenance, property taxes and insurance charges incurred by the landlord for the facilities which we occupy. These amounts are not Operating lease payments are included in cash outflows from operating activities on our consolidated statements of cash flows. Amortization of ROU assets is presented separately from the change in operating lease liabilities and is included in Depreciation and Amortization on our consolidated statements of cash flows. We have made an accounting policy election not 842 one See Note 8
Derivatives, Policy [Policy Text Block]	Interest Rate Swap Agreement We are exposed to interest rate risk on our floating-rate debt. We have entered into an interest rate swap agreement to effectively convert our floating-rate debt to a fixed-rate basis for a portion of our floating rate debt, as discussed further in Notes 3 9. 815
Contingent Liability, Repayment of State and Local Grant Funds Received, Policy [Policy Text Block]	Contingent Liability for Repayment of State and Local Grant Funds Received In connection with leasing a facility in Rochester, New York, which our subsidiary, Ambrell, occupied in May 2018, three March 31, 2022. 2024. may March 31, 2023, not no March 31, 2023. March 31, 2023,
Share-Based Payment Arrangement [Policy Text Block]	Stock-Based Compensation 718 10.
Income Tax, Policy [Policy Text Block]	Income Taxes not not
Earnings Per Share, Policy [Policy Text Block]	Earnings (Loss) Per Common Share The table below sets forth, for the periods indicated, a reconciliation of weighted average common shares outstanding - basic to weighted average common shares and common share equivalents outstanding - diluted and the average number of potentially dilutive securities that were excluded from the calculation of diluted earnings (loss) per share because their effect was anti-dilutive: Three Months Ended March 31, 2023 2022 Weighted average common shares outstanding–basic 10,755,729 10,617,271 Potentially dilutive securities: Unvested shares of restricted stock and employee stock options 332,935 225,321 Weighted average common shares and common share equivalents outstanding–diluted 11,088,664 10,842,592 Average number of potentially dilutive securities excluded from calculation 154,429 318,574
New Accounting Pronouncements, Policy [Policy Text Block]	Effect of Recently Adopted Amendments to Authoritative Accounting Guidance In June 2016, November 2019, December 15, 2022. first January 1, 2023. not

Note 2 - Summary of Significa_2

Note 2 - Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule of Cash, Cash Equivalents and Restricted Cash [Table Text Block]	March 31, 2023 December 31, 2022 Cash and cash equivalents $ 15,428 $ 13,434 Restricted cash 516 1,142 Total cash, cash equivalents and restricted cash $ 15,944 $ 14,576
Schedule of Weighted Average Number of Shares [Table Text Block]	Three Months Ended March 31, 2023 2022 Weighted average common shares outstanding–basic 10,755,729 10,617,271 Potentially dilutive securities: Unvested shares of restricted stock and employee stock options 332,935 225,321 Weighted average common shares and common share equivalents outstanding–diluted 11,088,664 10,842,592 Average number of potentially dilutive securities excluded from calculation 154,429 318,574

Note 3 - Fair Value Measureme_2

Note 3 - Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]	Amounts at Fair Value Measurement Using Fair Value Level 1 Level 2 Level 3 As of March 31, 2023 Contingent consideration liability – Acculogic $ (1,367 ) $ - $ - $ (1,367 ) Interest rate swap $ 429 $ - $ 429 $ - Amounts at Fair Value Measurement Using Fair Value Level 1 Level 2 Level 3 As of December 31, 2022 Contingent consideration liability – Acculogic $ (1,363 ) $ - $ - $ (1,363 ) Interest rate swap $ 528 $ - $ 528 $ -
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	Three Months Ended March 31, 2023 Balance at beginning of period $ 1,363 Impact of foreign currency translation adjustments 4 Balance at end of period $ 1,367

Note 4 - Goodwill and Intangi_2

Note 4 - Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule of Changes in Goodwill [Table Text Block]	Balance - January 1, 2023 $ 21,605 Impact of foreign currency translation adjustments 31 Balance - March 31, 2023 $ 21,636
Schedule of Goodwill [Table Text Block]	March 31, December 31, 2023 2022 Electronic Test $ 3,377 $ 3,369 Environmental Technologies 1,817 1,817 Process Technologies 16,442 16,419 Total goodwill $ 21,636 $ 21,605
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]	Balance - January 1, 2023 $ 8,369 Impact of foreign currency translation adjustments 6 Balance - March 31, 2023 $ 8,375
Schedule of Finite-Lived Intangible Assets [Table Text Block]	Balance - January 1, 2023 $ 10,190 Impact of foreign currency translation adjustments 25 Amortization (544 ) Balance - March 31, 2023 $ 9,671
Schedule Of Intangible Assets [Table Text Block]	March 31, December 31, 2023 2022 Electronic Test 4,019 4,139 Environmental Technologies 823 832 Process Technologies 13,204 13,588 Total intangible assets $ 18,046 $ 18,559 March 31, 2023 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Customer relationships $ 16,334 $ 8,431 $ 7,903 Technology 2,863 1,095 1,768 Patents 590 590 - Backlog 494 494 - Software 270 270 - Trade name 140 140 - Total finite-lived intangible assets 20,691 11,020 9,671 Indefinite-lived intangible assets: Trademarks 8,375 - 8,375 Total intangible assets $ 29,066 $ 11,020 $ 18,046 December 31, 2022 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Customer relationships $ 16,313 $ 7,990 $ 8,323 Technology 2,855 988 1,867 Patents 590 590 - Backlog 492 492 - Software 270 270 - Trade name 140 140 - Total finite-lived intangible assets 20,660 10,470 10,190 Indefinite-lived intangible assets: Trademarks 8,369 - 8,369 Total intangible assets $ 29,029 $ 10,470 $ 18,559
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	2023 (remainder) $ 1,549 2024 $ 1,971 2025 $ 1,762 2026 $ 1,153 2027 $ 658

Note 5 - Revenue From Contrac_2

Note 5 - Revenue From Contracts With Customers (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Disaggregation of Revenue [Table Text Block]	Three Months Ended March 31, 2023 2022 Revenue by customer type: End user $ 21,594 $ 17,142 OEM/Integrator 10,215 6,939 $ 31,919 $ 24,081 Revenue by product type: Thermal test $ 5,820 $ 5,057 Thermal process 9,822 6,996 Semiconductor test 8,105 6,008 Video imaging 2,648 1,850 Flying probe and in-circuit testers 1,160 1,688 Service/other 4,364 2,482 $ 31,919 $ 24,081 Revenue by market: Semiconductor $ 17,683 $ 13,390 Industrial 3,137 2,799 Automotive (including Electric Vehicles) 2,597 2,756 Life Sciences 1,513 699 Defense/aerospace 2,839 1,493 Security 966 574 Other 3,184 2,370 $ 31,919 $ 24,081

Note 7 - Inventories (Tables)

Note 7 - Inventories (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule of Inventory, Current [Table Text Block]	March 31, 2023 December 31, 2022 Raw materials $ 18,465 $ 16,888 Work in process 2,372 2,432 Inventory consigned to others 52 59 Finished goods 3,600 3,186 Total inventories $ 24,489 $ 22,565

Note 8 - Leases (Tables)

Note 8 - Leases (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Lease, Cost [Table Text Block]	Three Months Ended March 31, 2023 2022 Operating lease cost $ 400 $ 326 Short-term lease cost $ 3 $ 30 Range of remaining lease terms (in years) .3 to 8.1 Weighted average remaining lease term (in years) 4.8 Weighted average discount rate 4.4%
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]	2023 $ 1,454 2024 1,892 2025 994 2026 694 2027 696 Thereafter 944 Total lease payments $ 6,674 Less imputed interest (622 ) Total $ 6,052

Note 9 - Debt (Tables)

Note 9 - Debt (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule Of Outstanding Letters Of Credit [Table Text Block]	L/C Lease Letters of Credit Amount Outstanding Facility Original L/C Issue Date Expiration Date Expiration Date Mar. 31, 2023 Dec. 31, 2022 Mt. Laurel, NJ 3/29/2010 4/30/2024 4/30/2031 $ 50 $ 50 Mansfield, MA 10/27/2010 12/31/2024 12/31/2024 50 50 $ 100 $ 100
Schedule of Maturities of Long-Term Debt [Table Text Block]	2023 (remainder) $ 3,075 2024 4,100 2025 4,100 2026 3,842 $ 15,117

Note 10 - Stock-based Compens_2

Note 10 - Stock-based Compensation Plan (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Three Months Ended March 31, 2023 2022 Cost of revenue $ 19 $ 11 Selling expense 10 7 Engineering and product development expense 10 19 General and administrative expense 435 335 $ 474 $ 372
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	2023 2022 Risk-free interest rate 3.94 % 1.81 % Dividend yield 0.00 % 0.00 % Expected common stock market price volatility factor .57 .54 Weighted average expected life of stock options (years) 6.25 6.25
Share-Based Payment Arrangement, Option, Activity [Table Text Block]	Number of Shares Weighted Average Exercise Price Options outstanding, January 1, 2023 ( 167,886 580,419 $ 8.91 Granted 90,392 16.06 Exercised (25,200 ) 6.55 Canceled (23,859 ) 9.09 Options outstanding, March 31, 2023 ( 185,246 621,752 10.04
Nonvested Restricted Stock Shares Activity [Table Text Block]	Number of Shares Weighted Average Grant Date Fair Value Unvested shares outstanding, January 1, 2023 288,450 $ 7.80 Granted 90,588 16.06 Vested (21,066 ) 12.21 Forfeited (13,271 ) 9.88 Unvested shares outstanding, March 31, 2023 344,701 9.71

Note 13 - Segment Information (

Note 13 - Segment Information (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three Months Ended March 31, 2023 2022 Revenue: Electronic Test $ 10,371 $ 8,778 Environmental Technologies 8,042 6,993 Process Technologies 13,506 8,310 Total revenue $ 31,919 $ 24,081 Income from divisional operations: Electronic Test $ 2,578 $ 1,887 Environmental Technologies 1,013 802 Process Technologies 2,676 730 Total income from divisional operations 6,267 3,419 Corporate expenses (2,205 ) (1,835 ) Acquired intangible amortization (544 ) (782 ) Interest expense (182 ) (137 ) Other income (expense) 58 (10 ) Earnings before income tax expense $ 3,394 $ 655
Revenue from External Customers by Geographic Areas [Table Text Block]	Three Months Ended March 31, 2023 2022 Revenue: U.S. $ 11,090 $ 9,234 Foreign 20,829 14,847 $ 31,919 $ 24,081
Long-Lived Assets by Geographic Areas [Table Text Block]	March 31, December 31, 2023 2022 Property and equipment: U.S. $ 2,537 $ 2,658 Foreign 670 474 $ 3,207 $ 3,132
Asset [Member]
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	March 31, December 31, 2023 2022 Identifiable assets: Electronic Test $ 31,303 $ 31,143 Environmental Technologies 18,362 18,040 Process Technologies 57,672 56,866 Corporate 6,179 4,017 $ 113,516 $ 110,066

Note 1 - Nature of Operations (

Note 1 - Nature of Operations (Details Textual)	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Number of Operating Segments	3	3

Note 2 - Summary of Significa_3

Note 2 - Summary of Significant Accounting Policies (Details Textual) € in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2023 EUR (€)	Dec. 31, 2022 EUR (€)	May 31, 2018 USD ($)
Restricted Cash	$ 516		$ 1,142
Number of Operating Segments	3		3
Inventory Write-down	$ 135	$ 123
Deferred Grant Proceeds	286
City of Rochester and State of New York [Member]
Contingent Liability, Repayment of State and Local Grant Funds Received		$ 87				$ 550
Covenant, Future Amount Receivable	193
Bank Guarantee on Customer Order Deposit [Member]
Restricted Cash	$ 516		$ 1,142	€ 476	€ 1,067

Note 2 - Summary of Significa_4

Note 2 - Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash and cash equivalents	$ 15,428	$ 13,434
Restricted cash	516	1,142
Total cash, cash equivalents and restricted cash	$ 15,944	$ 14,576

Note 2 - Summary of Significa_5

Note 2 - Summary of Significant Accounting Policies - Weighted Average Common Shares (Details) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Weighted average common shares outstanding–basic (in shares)	10,755,729	10,617,271
Unvested shares of restricted stock and employee stock options (in shares)	332,935	225,321
Weighted average common shares and common share equivalents outstanding–diluted (in shares)	11,088,664	10,842,592
Average number of potentially dilutive securities excluded from calculation (in shares)	154,429	318,574

Note 3 - Fair Value Measureme_3

Note 3 - Fair Value Measurements - Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Interest Rate Swap [Member]
Interest rate swap	$ 429
Interest rate swap		$ 528
Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member]
Interest rate swap	0
Interest rate swap		0
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Interest rate swap	429
Interest rate swap		528
Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member]
Interest rate swap	0
Interest rate swap		0
Acculogic [Member]
Contingent consideration liability	(1,367)	(1,363)
Acculogic [Member] | Fair Value, Inputs, Level 1 [Member]
Contingent consideration liability	0	0
Acculogic [Member] | Fair Value, Inputs, Level 2 [Member]
Contingent consideration liability	0	0
Acculogic [Member] | Fair Value, Inputs, Level 3 [Member]
Contingent consideration liability	$ (1,367)	$ (1,363)

Note 3 - Fair Value Measureme_4

Note 3 - Fair Value Measurements - Changes in the Fair Value of Level 3 Contingent Consideration Liabilities (Details) - Contingent Consideration Liabilities [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Balance	$ 1,363
Impact of foreign currency translation adjustments	4
Balance	$ 1,367

Note 4 - Goodwill and Intangi_3

Note 4 - Goodwill and Intangible Assets - Changes in Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Balance	$ 21,605
Impact of foreign currency translation adjustments	31
Balance	$ 21,636

Note 4 - Goodwill and Intangi_4

Note 4 - Goodwill and Intangible Assets - Component of Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Goodwill	$ 21,636	$ 21,605
Electronic Test [Member]
Goodwill	3,377	3,369
Environmental Technologies [Member]
Goodwill	1,817	1,817
Process Technologies [Member]
Goodwill	$ 16,442	$ 16,419

Note 4 - Goodwill and Intangi_5

Note 4 - Goodwill and Intangible Assets - Changes in the Amount of the Carrying Value of Indefinite-lived Intangible Assets (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Balance	$ 8,369
Impact of foreign currency translation adjustments	6
Balance	$ 8,375

Note 4 - Goodwill and Intangi_6

Note 4 - Goodwill and Intangible Assets - Changes in the Amount of the Carrying Value of Intangible Assets (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Balance	$ 10,190
Impact of foreign currency translation adjustments	25
Amortization	(544)
Balance	$ 9,671

Note 4 - Goodwill and Intangi_7

Note 4 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Net Carrying Amount	$ 18,046	$ 18,559
Finite-lived, Gross Carrying Amount	20,691	20,660
Finite-lived, Accumulated Amortization	11,020	10,470
Net Carrying Amount, finite-lived	9,671	10,190
Indefinite-lived, Gross Carrying Amount	8,375	8,369
Net Carrying Amount, indefinite-lived	8,375	8,369
Intangible Assets, Gross Carrying Amount	29,066	29,029
Net Carrying Amount	18,046	18,559
Trademarks [Member]
Indefinite-lived, Gross Carrying Amount	8,375	8,369
Net Carrying Amount, indefinite-lived	8,375	8,369
Customer Relationships [Member]
Finite-lived, Gross Carrying Amount	16,334	16,313
Finite-lived, Accumulated Amortization	8,431	7,990
Net Carrying Amount, finite-lived	7,903	8,323
Patented Technology [Member]
Finite-lived, Gross Carrying Amount	2,863	2,855
Finite-lived, Accumulated Amortization	1,095	988
Net Carrying Amount, finite-lived	1,768	1,867
Patents [Member]
Finite-lived, Gross Carrying Amount	590	590
Finite-lived, Accumulated Amortization	590	590
Net Carrying Amount, finite-lived	0	0
Customer Backlog [Member]
Finite-lived, Gross Carrying Amount	494	492
Finite-lived, Accumulated Amortization	494	492
Net Carrying Amount, finite-lived	0	0
Computer Software, Intangible Asset [Member]
Finite-lived, Gross Carrying Amount	270	270
Finite-lived, Accumulated Amortization	270	270
Net Carrying Amount, finite-lived	0	0
Trade Names [Member]
Finite-lived, Gross Carrying Amount	140	140
Finite-lived, Accumulated Amortization	140	140
Net Carrying Amount, finite-lived	0	0
Electronic Test [Member]
Net Carrying Amount	4,019	4,139
Net Carrying Amount	4,019	4,139
Environmental Technologies [Member]
Net Carrying Amount	823	832
Net Carrying Amount	823	832
Process Technologies [Member]
Net Carrying Amount	13,204	13,588
Net Carrying Amount	$ 13,204	$ 13,588

Note 4 - Goodwill and Intangi_8

Note 4 - Goodwill and Intangible Assets - Future Amortization Expense (Details)	Mar. 31, 2023 USD ($)
2023 (remainder)	$ 1,549
2024	1,971
2025	1,762
2026	1,153
2027	$ 658

Note 5 - Revenue From Contrac_3

Note 5 - Revenue From Contracts With Customers (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease), Total	$ 0

Note 5 - Revenue From Contrac_4

Note 5 - Revenue From Contracts With Customers - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue	$ 31,919	$ 24,081
Semiconductor Market [Member]
Revenue	17,683	13,390
Industrial Market [Member]
Revenue	3,137	2,799
Automotive [Member]
Revenue	2,597	2,756
Life Sciences [Member]
Revenue	1,513	699
Defense/ Aerospace [Member]
Revenue	2,839	1,493
Security [Member]
Revenue	966	574
Other Multi Markets [Member]
Revenue	3,184	2,370
Thermal Testing Products [Member]
Revenue	5,820	5,057
Thermal Process [Member]
Revenue	9,822	6,996
Semiconductor Production Test Products [Member]
Revenue	8,105	6,008
Video Imaging [Member]
Revenue	2,648	1,850
Flying Probe and In-circuit Testers [Member]
Revenue	1,160	1,688
Service and Other Products [Member]
Revenue	4,364	2,482
End User [Member]
Revenue	21,594	17,142
OEM and Integrators [Member]
Revenue	$ 10,215	$ 6,939

Note 6 - Major Customers (Detai

Note 6 - Major Customers (Details Textual)	3 Months Ended
	Mar. 31, 2023
Number of Major Customers	1
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Texas Instruments Incorporated [Member]
Concentration Risk, Percentage	13%

Note 7 - Inventories - Inventor

Note 7 - Inventories - Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Raw materials	$ 18,465	$ 16,888
Work in process	2,372	2,432
Inventory consigned to others	52	59
Finished goods	3,600	3,186
Total inventories	$ 24,489	$ 22,565

Note 8 - Leases (Details Textua

Note 8 - Leases (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Mar. 31, 203
Operating Lease, Right-of-Use Asset, Periodic Reduction	$ 391,000	$ 309,000
Operating Lease, Right-of-Use Asset	5,506,000		$ 5,770,000
Environmental Technologies in Germany [Member]
Lessee, Operating Lease, Term of Contract (Month)				25 months
Operating Lease, Right-of-Use Asset	$ 90,000
Process Technologies [Member]
Lessee, Operating Lease, Term of Contract (Month)	36 months
Operating Lease, Right-of-Use Asset	$ 30

Note 8 - Leases - Lease Costs (

Note 8 - Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating lease cost	$ 400	$ 326
Short-term lease cost	$ 3	$ 30
Weighted average remaining lease term (in years) (Year)	4 years 9 months 18 days
Weighted average discount rate	4.40%
Minimum [Member]
Range of remaining lease terms (in years) (Year)	3 months 18 days
Maximum [Member]
Range of remaining lease terms (in years) (Year)	8 years 1 month 6 days

Note 8 - Leases - Maturities of

Note 8 - Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Mar. 31, 2023 USD ($)
2023	$ 1,454
2024	1,892
2025	994
2026	694
2027	696
Thereafter	944
Total lease payments	6,674
Less imputed interest	(622)
Total	$ 6,052

Note 9 - Debt (Details Textual)

Note 9 - Debt (Details Textual) - USD ($) $ in Thousands				3 Months Ended
	Dec. 29, 2021	Oct. 28, 2021	Oct. 15, 2021	Mar. 31, 2023	Mar. 31, 2022	May 01, 2023	Dec. 31, 2022	Sep. 20, 2022
Interest Expense				$ 182	$ 137
October 2021 Agreement [Member] | M&T Bank [Member]
Debt Instrument, Term (Year)			5 years
Debt Instrument, Interest Rate in Event of Default			2%
October 2021 Agreement [Member] | M&T Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 10,000
Interest Expense				$ 182	$ 137
October 2021 Agreement [Member] | M&T Bank [Member] | Term Note [Member]
Debt Instrument, Face Amount			$ 25,000
Debt Instrument, Draw Period (Year)			2 years
Proceeds from Issuance of Long-term Debt, Total	$ 8,500	$ 12,000
Debt Instrument, Interest Rate, Effective Percentage		3.20%		6.70%
October 2021 Agreement [Member] | M&T Bank [Member] | Term Note [Member] | Subsequent Event [Member]
Debt Instrument, Interest Rate, Effective Percentage						6.90%
Amended Loan Agreement [Member] | M&T Bank [Member]
Long-Term Line of Credit, Total							$ 0
Amended Loan Agreement [Member] | M&T Bank [Member] | Term Note [Member]
Debt Instrument, Face Amount								$ 50,500
Debt Instrument, Unused Borrowing Capacity, Amount							$ 30,000

Note 9 - Debt - Outstanding Let

Note 9 - Debt - Outstanding Letters of Credit (Details) - Letter of Credit [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Letters of Credit Amount Outstanding	$ 100	$ 100
Mt Laurel [Member]
Line of Credit, Issue Date	Mar. 29, 2010
Line of Credit, Expiration Date	Apr. 30, 2024
Lease Expiration Date	Apr. 30, 2031
Letters of Credit Amount Outstanding	$ 50	50
Mansfield [Member]
Line of Credit, Issue Date	Oct. 27, 2010
Line of Credit, Expiration Date	Dec. 31, 2024
Lease Expiration Date	Dec. 31, 2024
Letters of Credit Amount Outstanding	$ 50	$ 50

Note 9 - Debt - Future Maturiti

Note 9 - Debt - Future Maturities of Long-term Debt (Details) $ in Thousands	Mar. 31, 2023 USD ($)
2023 (remainder)	$ 3,075
2024	4,100
2025	4,100
2026	3,842
Long-Term Debt	$ 15,117

Note 10 - Stock-based Compens_3

Note 10 - Stock-based Compensation Plan (Details Textual) - USD ($)							1 Months Ended	3 Months Ended		12 Months Ended
	Mar. 08, 2023	Mar. 09, 2022	Oct. 01, 2021	Jun. 14, 2021	Mar. 10, 2021	Aug. 24, 2020	Aug. 31, 2020	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount								$ 4,537
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)								2 years 3 months 18 days
Share-based Payment Arrangement, Amount Capitalized									$ 0	$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)								$ 9.32	$ 5.19
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value								$ 381,000	$ 188,000
Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)										10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)										4 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)								90,588
Restricted Stock [Member] | Vesting Based On Performance Metrics [Member] | Restricted Stock Vesting in Three Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage							100%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range							0%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range							150%			150%
Restricted Stock [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)										4 years
Restricted Stock [Member] | Independent Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)										1 year
Restricted Stock [Member] | Independent Directors [Member] | Share-Based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage										25%
Restricted Stock [Member] | President [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)						141,610
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted, Fair Value						$ 650,000
Restricted Stock [Member] | President [Member] | Restricted Stock Vesting in Three Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)						75,162
Restricted Stock [Member] | President [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)						4 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)						66,448
Restricted Stock [Member] | President [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Restricted Stock Vesting in Three Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)						3 years
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range						0%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range						150%
Restricted Stock [Member] | President [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage						25%
Restricted Stock [Member] | Members of The Senior Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			5,000		18,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expected to Forfeit, Outstanding, Number (in shares)										6,000
Restricted Stock [Member] | Members of The Senior Management [Member] | Share-Based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage										100%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range					0%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range					150%
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number (in shares)										12,000
Restricted Stock [Member] | Members of The Senior Management [Member] | Vesting Based On Performance Metrics [Member] | Restricted Stock Vesting on January 1, 2025 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage											100%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range			0%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range			150%
Restricted Stock [Member] | Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)				7,941
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted, Fair Value				$ 133,000
Restricted Stock [Member] | Chief Financial Officer [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)				4 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)				1,988
Restricted Stock [Member] | Chief Financial Officer [Member] | Restricted Stock Vesting on August 24, 2023 [Member]
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range				0%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range				150%						150%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)				5,953
Restricted Stock [Member] | Chief Financial Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				25%
Restricted Stock [Member] | Chief Executive Officer and Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	100%									100%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range	0%	0%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range	150%	150%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	18,888	20,493
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Value	$ 303	$ 200,000

Note 10 - Stock-based Compens_4

Note 10 - Stock-based Compensation Plan - Allocation of Share-based Compensation Expense (Details) - Restricted Stock [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-Based Payment Arrangement, Expense	$ 474	$ 372
Cost of Sales [Member]
Share-Based Payment Arrangement, Expense	19	11
Selling and Marketing Expense [Member]
Share-Based Payment Arrangement, Expense	10	7
Research and Development Expense [Member]
Share-Based Payment Arrangement, Expense	10	19
General and Administrative Expense [Member]
Share-Based Payment Arrangement, Expense	$ 435	$ 335

Note 10 - Stock-based Compens_5

Note 10 - Stock-based Compensation Plan - Stock Options Valuation Assumptions (Details) - Share-Based Payment Arrangement, Option [Member]	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Risk-free interest rate	3.94%	1.81%
Dividend yield	0%	0%
Expected common stock market price volatility factor	57%	54%
Weighted average expected life of stock options (years) (Year)	6 years 3 months	6 years 3 months

Note 10 - Stock-based Compens_6

Note 10 - Stock-based Compensation Plan - Stock Option Activity (Details)	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Options outstanding, number of shares (in shares)	580,419
Granted, number of shares (in shares)	90,392
Granted (in dollars per share) | $ / shares	$ 16.06
Exercised, number of shares (in shares)	(25,200)
Exercised, weighted average exercise price (in dollars per share) | $ / shares	$ 6.55
Canceled, number of shares (in shares)	(23,859)
Canceled, weighted average exercise price (in dollars per share) | $ / shares	$ 9.09
Options outstanding, number of shares (in shares)	621,752
Options outstanding, March 31, 2023 (185,246 exercisable) (in dollars per share) | $ / shares	$ 10.04

Note 10 - Stock-based Compens_7

Note 10 - Stock-based Compensation Plan - Stock Option Activity (Details) (Parentheticals) - shares	Mar. 31, 2023	Jan. 01, 2023
Options exercisable (in shares)	185,246	167,886

Note 10 - Stock-based Compens_8

Note 10 - Stock-based Compensation Plan - Unvested Stock Activity (Details) - Restricted Stock [Member]	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Unvested shares outstanding (in shares) | shares	288,450
Unvested shares outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 7.80
Granted, number of shares (in shares) | shares	90,588
Granted, weighted average exercise price (in dollars per share) | $ / shares	$ 16.06
Vested, number of shares (in shares) | shares	(21,066)
Vested, weighted average exercise price (in dollars per share) | $ / shares	$ 12.21
Forfeited, number of shares (in shares) | shares	(13,271)
Forfeited, weighted average exercise price (in dollars per share) | $ / shares	$ 9.88
Unvested shares outstanding (in shares) | shares	344,701
Unvested shares outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 9.71

Note 11 - Employee Stock Purc_2

Note 11 - Employee Stock Purchase Plan (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Jun. 23, 2021
Stock Issued During Period, Value, Employee Stock Purchase Plan		$ 48	$ 56
Share Price (in dollars per share)	$ 20.74	$ 20.74
Share-based Compensation Arrangement by Share-based Payment Award, Discount Amount		$ 8	$ 8
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)				250,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)	2,292,000	33,445
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 40	$ 281
Shares Issued, Price Per Share (in dollars per share)	$ 17.63	$ 17.63
Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Purchase Date		15%
Share-based Compensation Arrangement by Share-based Payment Award, Discount Amount		$ 8
Share-Based Payment Arrangement, Expense		$ 49

Note 12 - Employee Benefit Pl_2

Note 12 - Employee Benefit Plans (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
401(k) Plan [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	10%
Defined Contribution Plan Maximum Annual Employer Matching Contribution Per Emplyee Amount	$ 5
Defined Contribution Plan Employer Matching Contribution Vesting Period (Year)	4 years
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 239	$ 216
The Ambrell Plan [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			10%
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 133	$ 101
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent			100%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match			50%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount			$ 5

Note 13 - Segment Information_2

Note 13 - Segment Information (Details Textual)	3 Months Ended
	Mar. 31, 2023
Number of Reportable Segments	3

Note 13 - Segment Information -

Note 13 - Segment Information - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net revenues	$ 31,919	$ 24,081
Earnings before income tax expense	3,394	655
Earnings before income tax expense	3,394	655
Acquired intangible amortization	(544)	(782)
Interest expense	182	137
Other income (expense)	58	(10)
Operating Segments [Member]
Net revenues	31,919	24,081
Earnings before income tax expense	6,267	3,419
Earnings before income tax expense	6,267	3,419
Operating Segments [Member] | Electronic Test [Member]
Net revenues	10,371	8,778
Earnings before income tax expense	2,578	1,887
Earnings before income tax expense	2,578	1,887
Operating Segments [Member] | Environmental Technologies [Member]
Net revenues	8,042	6,993
Earnings before income tax expense	1,013	802
Earnings before income tax expense	1,013	802
Operating Segments [Member] | Process Technologies [Member]
Net revenues	13,506	8,310
Earnings before income tax expense	2,676	730
Earnings before income tax expense	2,676	730
Corporate, Non-Segment [Member]
Earnings before income tax expense	(2,205)	(1,835)
Earnings before income tax expense	$ (2,205)	$ (1,835)

Note 13 - Segment Information_3

Note 13 - Segment Information - Identifiable Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Identifiable Assets	$ 113,516	$ 110,066
Corporate, Non-Segment [Member]
Identifiable Assets	6,179	4,017
Electronic Test [Member]
Identifiable Assets	31,303	31,143
Environmental Technologies [Member]
Identifiable Assets	18,362	18,040
Process Technologies [Member]
Identifiable Assets	$ 57,672	$ 56,866

Note 13 - Segment Information_4

Note 13 - Segment Information - Net Revenue From Unaffiliated Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue	$ 31,919	$ 24,081
UNITED STATES
Revenue	11,090	9,234
Non-US [Member]
Revenue	$ 20,829	$ 14,847

Note 13 - Segment Information_5

Note 13 - Segment Information - Long-lived Assets by Geographical Area (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Property and Equipment	$ 3,207	$ 3,132
UNITED STATES
Property and Equipment	2,537	2,658
Non-US [Member]
Property and Equipment	$ 670	$ 474