inTEST (INTT) 10-Q 12 Nov 21 2021 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Nov. 03, 2021
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	Q3
Document Fiscal Year Focus	2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
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		10,873,392

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 18,743	$ 10,277
Trade accounts receivable, net of allowance for doubtful accounts of $211 and $212, respectively	12,232	8,435
Inventories	9,359	7,476
Prepaid expenses and other current assets	798	776
Total current assets	41,132	26,964
Property and equipment:
Machinery and equipment	5,414	5,356
Leasehold improvements	2,908	2,636
Gross property and equipment	8,322	7,992
Less: accumulated depreciation	(5,925)	(5,642)
Net property and equipment	2,397	2,350
Right-of-use assets, net	5,819	6,387
Goodwill	13,738	13,738
Intangible assets, net	11,503	12,421
Restricted certificates of deposit	100	140
Other assets	40	30
Total assets	74,729	62,030
Current liabilities:
Accounts payable	3,849	2,424
Accrued wages and benefits	2,881	1,944
Accrued professional fees	827	776
Customer deposits and deferred revenue	2,082	396
Accrued sales commissions	836	472
Current portion of operating lease liabilities	1,207	1,215
Domestic and foreign income taxes payable	1,121	825
Other current liabilities	741	804
Total current liabilities	13,544	8,856
Operating lease liabilities, net of current portion	5,332	6,050
Deferred tax liabilities	1,701	1,922
Other liabilities	436	450
Total liabilities	21,013	17,278
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; 10,819,294 and 10,562,200 shares issued, respectively	108	106
Additional paid-in capital	28,962	26,851
Retained earnings	24,106	17,110
Accumulated other comprehensive earnings	744	889
Treasury stock, at cost; 33,077 shares	(204)	(204)
Total stockholders' equity	53,716	44,752
Total liabilities and stockholders' equity	$ 74,729	$ 62,030

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Allowance for doubtful accounts	$ 211	$ 212
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)	10,819,294	10,562,200
Treasury stock, shares (in shares)	33,077	33,077

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net revenues	$ 21,144	$ 14,443	$ 62,520	$ 38,948
Cost of revenues	10,749	7,993	31,642	21,564
Gross margin	10,395	6,450	30,878	17,384
Operating expenses:
Selling expense	2,841	1,747	7,849	5,560
Engineering and product development expense	1,334	1,316	4,012	3,825
General and administrative expense	3,620	2,799	10,550	8,525
Restructuring and other charges	51	161	303	207
Total operating expenses	7,846	6,023	22,714	18,117
Operating income (loss)	2,549	427	8,164	(733)
Other income (loss)	(17)	6	2	(44)
Earnings (loss) before income tax expense (benefit)	2,532	433	8,166	(777)
Income tax expense (benefit)	357	(25)	1,170	(262)
Net earnings (loss)	$ 2,175	$ 458	$ 6,996	$ (515)
Net earnings (loss) per common share - basic (in dollars per share)	$ 0.21	$ 0.04	$ 0.67	$ (0.05)
Weighted average common shares outstanding - basic (in shares)	10,496,188	10,269,995	10,422,851	10,247,779
Net earnings (loss) per common share - diluted (in dollars per share)	$ 0.20	$ 0.04	$ 0.65	$ (0.05)
Weighted average common shares and common share equivalents outstanding - diluted (in shares)	10,792,290	10,287,562	10,694,351	10,247,779

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Earnings (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net earnings (loss)	$ 2,175	$ 458	$ 6,996	$ (515)
Foreign currency translation adjustments	(68)	101	(145)	98
Comprehensive earnings (loss)	$ 2,107	$ 559	$ 6,851	$ (417)

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 [Member]	Total
Balance (in shares) at Dec. 31, 2019	10,413,982
Balance at Dec. 31, 2019	$ 104	$ 26,256	$ 18,005	$ 673	$ (204)	$ 44,834
Net earnings (loss)	0	0	(1,143)	0	0	(1,143)
Other comprehensive earnings (loss)	0	0	0	(38)	0	(38)
Amortization of deferred compensation related to stock-based awards	$ 0	187	0	0	0	187
Issuance of unvested shares of restricted stock (in shares)	58,160
Issuance of unvested shares of restricted stock	$ 1	(1)	0	0	0	0
Forfeiture of unvested shares of restricted stock (in shares)	(8,315)
Forfeiture of unvested shares of restricted stock	$ 0		0	0	0	0
Forfeiture of unvested shares of restricted stock		0
Repurchase and retirement of common stock (in shares)	(13,767)
Repurchase and retirement of common stock	$ 0	(74)	0	0	0	(74)
Balance (in shares) at Mar. 31, 2020	10,450,060
Balance at Mar. 31, 2020	$ 105	26,368	16,862	635	(204)	43,766
Balance (in shares) at Dec. 31, 2019	10,413,982
Balance at Dec. 31, 2019	$ 104	26,256	18,005	673	(204)	44,834
Net earnings (loss)						(515)
Balance (in shares) at Sep. 30, 2020	10,562,200
Balance at Sep. 30, 2020	$ 106	26,660	17,490	771	(204)	44,823
Balance (in shares) at Mar. 31, 2020	10,450,060
Balance at Mar. 31, 2020	$ 105	26,368	16,862	635	(204)	43,766
Net earnings (loss)	0	0	170	0	0	170
Other comprehensive earnings (loss)	0	0	0	35	0	35
Amortization of deferred compensation related to stock-based awards	$ 0	208	0	0	0	208
Issuance of unvested shares of restricted stock (in shares)	15,840
Issuance of unvested shares of restricted stock	$ 0	0	0	0	0	0
Forfeiture of unvested shares of restricted stock (in shares)	(6,750)
Forfeiture of unvested shares of restricted stock	$ 0		0	0	0	0
Forfeiture of unvested shares of restricted stock		0
Balance (in shares) at Jun. 30, 2020	10,459,150
Balance at Jun. 30, 2020	$ 105	26,576	17,032	670	(204)	44,179
Net earnings (loss)	0	0	458	0	0	458
Other comprehensive earnings (loss)	0	0	0	101	0	101
Amortization of deferred compensation related to stock-based awards	$ 0	85	0	0	0	85
Issuance of unvested shares of restricted stock (in shares)	155,110
Issuance of unvested shares of restricted stock	$ 2	(2)	0	0	0	0
Forfeiture of unvested shares of restricted stock (in shares)	(52,060)
Forfeiture of unvested shares of restricted stock	$ (1)		0	0	0	0
Forfeiture of unvested shares of restricted stock		1
Balance (in shares) at Sep. 30, 2020	10,562,200
Balance at Sep. 30, 2020	$ 106	26,660	17,490	771	(204)	$ 44,823
Balance (in shares) at Dec. 31, 2020	10,562,200					10,562,200
Balance at Dec. 31, 2020	$ 106	26,851	17,110	889	(204)	$ 44,752
Net earnings (loss)	0	0	2,212	0	0	2,212
Other comprehensive earnings (loss)	0	0	0	(101)	0	(101)
Amortization of deferred compensation related to stock-based awards	$ 0	269	0	0	0	269
Issuance of unvested shares of restricted stock (in shares)	81,468
Issuance of unvested shares of restricted stock	$ 1	(1)	0	0	0	0
Stock options exercised (in shares)	99,740
Stock options exercised	$ 1	716	0	0	0	717
Balance (in shares) at Mar. 31, 2021	10,743,408
Balance at Mar. 31, 2021	$ 108	27,835	19,322	788	(204)	$ 47,849
Balance (in shares) at Dec. 31, 2020	10,562,200					10,562,200
Balance at Dec. 31, 2020	$ 106	26,851	17,110	889	(204)	$ 44,752
Net earnings (loss)						$ 6,996
Stock options exercised (in shares)						149,010
Balance (in shares) at Sep. 30, 2021	10,819,294					10,819,294
Balance at Sep. 30, 2021	$ 108	28,962	24,106	744	(204)	$ 53,716
Balance (in shares) at Mar. 31, 2021	10,743,408
Balance at Mar. 31, 2021	$ 108	27,835	19,322	788	(204)	47,849
Net earnings (loss)	0	0	2,609	0	0	2,609
Other comprehensive earnings (loss)	0	0	0	24	0	24
Amortization of deferred compensation related to stock-based awards	$ 0	454	0	0	0	454
Issuance of unvested shares of restricted stock (in shares)	44,741
Issuance of unvested shares of restricted stock	$ 0	0	0	0	0	0
Stock options exercised (in shares)	45,835
Stock options exercised	$ 0	285	0	0	0	285
Forfeiture of unvested shares of restricted stock (in shares)	(18,125)
Forfeiture of unvested shares of restricted stock	$ 0		0	0	0	0
Forfeiture of unvested shares of restricted stock		0
Balance (in shares) at Jun. 30, 2021	10,815,859
Balance at Jun. 30, 2021	$ 108	28,574	21,931	812	(204)	51,221
Net earnings (loss)	0	0	2,175	0	0	2,175
Other comprehensive earnings (loss)	0	0	0	(68)	0	(68)
Amortization of deferred compensation related to stock-based awards	$ 0	371	0	0	0	371
Stock options exercised (in shares)	3,435
Stock options exercised	$ 0	17	0	0	0	$ 17
Balance (in shares) at Sep. 30, 2021	10,819,294					10,819,294
Balance at Sep. 30, 2021	$ 108	$ 28,962	$ 24,106	$ 744	$ (204)	$ 53,716

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings (loss)	$ 6,996	$ (515)
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization	2,166	2,378
Provision for excess and obsolete inventory	154	410
Foreign exchange loss	36	33
Amortization of deferred compensation related to stock-based awards	1,094	480
Loss on disposal of property and equipment	20	56
Deferred income tax benefit	(221)	(81)
Changes in assets and liabilities:
Trade accounts receivable	(3,874)	(237)
Inventories	(2,051)	(146)
Prepaid expenses and other current assets	(26)	95
Restricted certificates of deposit	40	0
Other assets	(10)	(5)
Accounts payable	1,425	215
Accrued wages and benefits	942	18
Accrued professional fees	52	47
Customer deposits and deferred revenue	1,697	936
Accrued sales commissions	366	(2)
Operating lease liabilities	(918)	(977)
Domestic and foreign income taxes payable	302	(240)
Other current liabilities	(60)	(60)
Other liabilities	(7)	(5)
Net cash provided by operating activities	8,123	2,400
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(577)	(520)
Net cash used in investing activities	(577)	(520)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock options exercised	1,019	0
Repurchases of common stock	0	(74)
Proceeds from Paycheck Protection Program loans	0	2,829
Repayments of Paycheck Protection Program loans	0	(2,829)
Proceeds from revolving credit facility	0	2,800
Repayments of revolving credit facility	0	(2,800)
Net cash provided by (used in) financing activities	1,019	(74)
Effects of exchange rates on cash	(99)	55
Net cash provided by all activities	8,466	1,861
Cash and cash equivalents at beginning of period	10,277	7,612
Cash and cash equivalents at end of period	18,743	9,473
Cash payments for:
Domestic and foreign income taxes	$ 1,053	$ 58

Note 1 - Nature of Operations

Note 1 - Nature of Operations	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Nature of Operations [Text Block]	( 1 NATURE OF OPERATIONS We are a global supplier of innovative test and process solutions for use in manufacturing and testing across a wide range of markets including automotive, defense/aerospace, industrial, life sciences, semiconductor and telecommunications. We manage our business as two operating segments which are also our reportable segments and reporting units: Thermal Products ("Thermal") and Electromechanical Solutions ("EMS"). Our Thermal segment designs, manufactures and sells our thermal test and thermal process products while our EMS segment designs, manufactures and sells our semiconductor test products. We manufacture our products in the U.S. Marketing and support activities are conducted worldwide from our facilities in the U.S., Germany, Singapore, the Netherlands and the U.K. The consolidated entity is comprised of inTEST Corporation and our wholly-owned subsidiaries. Our EMS segment sells its products to semiconductor manufacturers and third third Both 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. As a result, our consolidated gross margin can be significantly impacted in any given period by a change in the mix of products sold in that period. We refer to the broader semiconductor market, including the more specialized ATE and wafer processing sectors within that market, as the “Semi Market.” All other markets are designated as “Multimarket.” The Semi Market, which is the principal market in which we operate, is characterized by rapid technological change, competitive pricing pressures and cyclical market patterns. This market is subject to significant economic downturns at various times. Our financial results are affected by a wide variety of factors, including, but not may may may not may not may not may COVID- 19 As of the date of this Quarterly Report on Form 10 While the negative impact of COVID- 19 second 2020 first nine 2021, one

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Significant Accounting Policies [Text Block]	( 2 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Use of 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, 2020 ( “2020 10 March 23, 2021 Reclassification Subsequent Events no nine September 30, 2021 15. Business Combinations third Restructuring and Other Charges In accordance with the guidance in Accounting Standards Codification (“ASC”) Topic 420 may may may 842 360 350 Goodwill, Intangible and Long-Lived Assets 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 in the fourth not not no Long-lived assets, which consist of finite-lived intangible assets, property and equipment and 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 solutions for use in manufacturing and testing across a wide range of markets including automotive, defense/aerospace, industrial, medical, semiconductor and telecommunications . 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 doubtful accounts, is included in current assets on our balance sheet. To the extent that we do not The allowance for doubtful accounts reflects our best estimate of probable losses inherent in the accounts receivable balance. We determine the allowance based on known troubled accounts, if any, historical experience, and other currently available evidence. 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 14 Inventories first first not three January 1, 2021, not twenty-four January 1, 2021, not twelve Leases We account for leases in accordance with ASC Topic 842 January 1, 2019. 842, not 842. not not not 842 none 842 not We determine if an arrangement is a lease at inception. A lease contract is within scope if the contract has an identified asset (property, plant or equipment) and grants the lessee the right to control the use of the asset during the lease term. The identified asset may not not 842. not 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 in our consolidated statements of cash flows. We have made an accounting policy election not 842 one See Note 8 Contingent Liability for Repayment of State and Local Grant Proceeds In connection with leasing a new facility in Rochester, New York, which our subsidiary, Ambrell, occupied in May 2018, 2023. may September 30, 2021, not no September 30, 2021. As of December 31, 2020, not December 31, 2020. December 31, 2021 September 30, 2021, Stock-Based Compensation 718 10. Income Taxes not not Net Earnings (Loss) Per Common Share Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Weighted average common shares outstanding - basic 10,496,188 10,269,995 10,422,851 10,247,779 Potentially dilutive securities: Unvested shares of restricted stock and employee stock options 296,102 17,567 271,500 - Weighted average common shares and common share equivalents outstanding - diluted 10,792,290 10,287,562 10,694,351 10,247,779 Average number of potentially dilutive securities excluded from calculation 237,545 631,392 283,894 722,538 Effect of Recently Issued Amendments to Authoritative Accounting Guidance In June 2016, November 2019, December 15, 2022. first January 1, 2023. not

Note 3 - Restructuring and Othe

Note 3 - Restructuring and Other Charges	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Restructuring, Impairment, and Other Activities Disclosure [Text Block]	( 3 RESTRUCTURING AND OTHER CHARGES EMS Segment Restructuring and Facility Consolidation As discussed in Note 3 2020 10 September 21, 2020, one 3 2020 10 At the time of the consolidation of manufacturing operations, we intended to try to sublease the facility in Fremont, but we did not July 19, 2021, August 2021 November 30, 2025, 14 December 2020. December 2020. During the nine September 30, 2021, first nine 2021 third 2021. Executive Management Changes On June 10, 2021, June 11, 2021 three three not three March 2020 one On June 10, 2021, June 14, 2021 ( June 10, 2021, June 10, 2021 Total costs incurred during the nine September 30, 2021 March 2020 2020 During the nine September 30, 2020, one Accrued Restructuring The liability for accrued restructuring charges is included in other current liabilities on our consolidated balance sheet. Changes in the amount of the liability for accrued restructuring for the nine September 30, 2021 EMS Facility Consolidation Executive Management Changes Total Balance – January 1, 2021 $ 233 $ 107 $ 340 Accruals for severance - 120 120 Accruals for other costs associated with facility consolidation 183 - 183 Cash payments (416 ) (140 ) (556 ) Balance – September 30, 2021 $ - $ 87 $ 87

Note 4 - Goodwill and Intangibl

Note 4 - Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	( 4 GOODWILL AND INTANGIBLE ASSETS We have two operating segments which are also our reporting units: Thermal and EMS. Goodwill and intangible assets on our balance sheets are the result of our acquisitions of Sigma Systems Corp. ("Sigma") in October 2008, January 2012 May 2017. Goodwill Goodwill totaled $13,738 at both September 30, 2021 December 31, 2020 Sigma $ 1,656 Thermonics 50 Ambrell 12,032 Total $ 13,738 Intangible Assets nine September 30, 2021 Balance - January 1, 2021 $ 5,711 Amortization (918 ) Balance September 30, 2021 $ 4,793 The following tables provide further detail about our intangible assets as of September 30, 2021 December 31, 2020: September 30, 2021 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Customer relationships $ 10,480 $ 5,767 $ 4,713 Technology 600 528 72 Patents 590 582 8 Software 270 270 - Trade name 140 140 - Total finite-lived intangible assets 12,080 7,287 4,793 Indefinite-lived intangible assets: Trademarks 6,710 - 6,710 Total intangible assets $ 18,790 $ 7,287 $ 11,503 December 31, 2020 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Customer relationships $ 10,480 $ 4,912 $ 5,568 Technology 600 477 123 Patents 590 570 20 Software 270 270 - Trade name 140 140 - Total finite-lived intangible assets 12,080 6,369 5,711 Indefinite-lived intangible assets: Trademarks 6,710 - 6,710 Total intangible assets $ 18,790 $ 6,369 $ 12,421 We generally amortize our finite-lived intangible assets over their estimated useful lives on a straight-line basis, unless an alternate amortization method can 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 Total amortization expense for our finite-lived intangible assets was $309 and $918 for the three nine September 30, 2021, three nine September 30, 2020, five 2021 (remainder) $ 309 2022 $ 1,167 2023 $ 1,067 2024 $ 980 2025 $ 905

Note 5 - Revenue From Contracts

Note 5 - Revenue From Contracts With Customers	9 Months Ended
	Sep. 30, 2021
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. See also Note 14 Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net revenues by customer type: End user $ 17,366 $ 12,651 $ 54,291 $ 34,518 OEM/Integrator 3,778 1,792 8,229 4,430 $ 21,144 $ 14,443 $ 62,520 $ 38,948 Net revenues by product type: Thermal test $ 5,284 $ 3,632 $ 14,126 $ 11,482 Thermal process 6,412 5,574 18,785 13,885 Semiconductor test 7,951 3,604 25,224 9,093 Service/other 1,497 1,633 4,385 4,488 $ 21,144 $ 14,443 $ 62,520 $ 38,948 Net revenues by market: Semi Market $ 13,656 $ 7,387 $ 42,653 $ 19,256 Multimarket: Industrial 5,463 4,220 13,535 12,346 Defense/aerospace 778 2,015 3,175 4,919 Telecommunications 315 419 870 1,427 Other Multimarkets 932 402 2,287 1,000 $ 21,144 $ 14,443 $ 62,520 $ 38,948 There was not nine September 30, 2021.

Note 6 - Major Customers

Note 6 - Major Customers	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	( 6 MAJOR CUSTOMERS During the nine September 30, 2021, 10% nine September 30, 2021. nine September 30, 2020, 10%

Note 7 - Inventories

Note 7 - Inventories	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Inventory Disclosure [Text Block]	( 7 INVENTORIES Inventories held at September 30, 2021 December 31, 2020 September 30, 2021 December 31, 2020 Raw materials $ 6,768 $ 5,371 Work in process 1,148 1,085 Inventory consigned to others 44 45 Finished goods 1,399 975 Total inventories $ 9,359 $ 7,476 Total charges incurred for excess and obsolete inventory for the three nine September 30, 2021 2020, Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Excess and obsolete inventory charges $ 61 $ 105 $ 154 $ 410

Note 8 - Leases

Note 8 - Leases	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	( 8 LEASES We lease our offices, warehouse facilities and certain equipment under non-cancellable operating leases which expire at various dates through 2031. three nine September 30, 2021 2020 Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Operating lease cost $ 247 $ 393 $ 865 $ 1,174 Short-term lease cost $ 20 $ 13 $ 60 $ 35 The following is additional information about our leases as of September 30, 2021: Range of remaining lease terms (in years) 0.5 to 9.6 Weighted average remaining lease term (in years) 6.0 Weighted average discount rate 4.2 % Maturities of lease liabilities as of September 30, 2021 2021 (remainder) $ 358 2022 1,469 2023 1,482 2024 1,474 2025 722 Thereafter 1,845 Total lease payments $ 7,350 Less imputed interest (811 ) Total $ 6,539 Supplemental Cash Flow Information Total amortization of ROU assets was $231 and $760 for the three nine September 30, 2021, three nine September 30, 2020, Nine Months ended September 30, 2021 Non-cash increases in operating lease liabilities and ROU assets as a result of a lease modification for the nine September 30, 2021 Execution of lease for facility in Fremont, California $ 202 On August 16, 2021, Nine Months ended September 30, 2020 Non-cash increases in operating lease liabilities and ROU assets as a result of lease modifications for the nine September 30, 2020 Modification to lease for facility in Fremont, California $ 1,176 Modification to lease for facility in Mt. Laurel, New Jersey $ 2,051 On January 23, 2020, 61 November 1, 2020 November 30, 2025. 3 2020 10 December 31, 2020, July 19, 2021, August 1, 2021 November 30, 2025, 14 December 2020. December 2020. On September 22, 2020, May 1, 2021.

Note 9 - Debt

Note 9 - Debt	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Debt Disclosure [Text Block]	( 9 DEBT Letters of Credit 30 not one Our outstanding letters of credit at September 30, 2021 December 31, 2020 Letters of Credit Amount Outstanding Original L/C Issue Date L/C Expiration Date Lease Expiration Date September 30, 2021 December 31, 2020 Mt. Laurel, NJ 3/29/2010 4/30/2022 4/30/2031 $ 50 $ 90 Mansfield, MA 10/27/2010 12/31/2024 12/31/2024 50 50 $ 100 $ 140 Line of Credit As of September 30, 2021, 10 2020 10 9 10 June 30, 2021, August 12, 2021 October 15, 2021 “October 2021 October 2021 15.

Note 10 - Stock-based Compensat

Note 10 - Stock-based Compensation	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	( 10 STOCK-BASED COMPENSATION As of September 30, 2021, 13 2020 10 September 30, 2021, three nine September 30, 2021 2020, Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Cost of revenues $ 10 $ - $ 17 $ - Selling expense 8 3 17 9 Engineering and product development expense 17 10 43 31 General and administrative expense 336 72 1,017 440 $ 371 $ 85 $ 1,094 $ 480 There was no stock-based compensation expense capitalized in the three nine September 30, 2021 2020. Restricted Stock Awards four one March 31, June 30, September 30, December 31 On August 24, 2020, two third August 24, 2020. September 30, 2021, three On March 10, 2021, third March 10, 2021. September 30, 2021, three On June 14, 2021, two August 24, 2023 June 14, 2021. September 30, 2021, The following table summarizes the activity related to unvested shares of restricted stock for the nine September 30, 2021: Number of Shares Weighted Average Grant Date Fair Value Unvested shares outstanding, January 1, 2021 237,155 $ 4.93 Granted 126,209 11.74 Vested (78,206 ) 7.24 Forfeited (18,125 ) 9.02 Unvested shares outstanding, September 30, 2021 267,033 7.19 The total fair value of the shares that vested during the nine September 30, 2021 2020 Stock Options No may ten four The fair value for stock options granted during the nine September 30, 2021 2020 2021 2020 Risk-free interest rate 1.03 % 0.46 % Dividend yield 0.00 % 0.00 % Expected common stock market price volatility factor .50 .44 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 nine September 30, 2021 2020 nine September 30, 2021: Number of Shares Weighted Average Grant Date Fair Value Options outstanding, January 1, 2021 ( 204,630 438,200 $ 6.25 Granted 282,404 11.77 Exercised (149,010 ) 6.84 Forfeited (80,550 ) 9.55 Options outstanding, September 30, 2021 ( 141,370 491,044 8.70

Note 11 - Stock Repurchase Plan

Note 11 - Stock Repurchase Plan	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Stock Repurchase Plan [Text Block]	( 11 STOCK REPURCHASE PLAN On July 31, 2019, 10b 18 1934, “2019 10b5 1 2019 not 2019 September 18, 2019 March 2, 2020, 2019 2019

Note 12 - Employee Stock Purcha

Note 12 - Employee Stock Purchase Plan	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Employee Stock Purchase Plan [Text Block]	( 12 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.

Note 13 - Employee Benefit Plan

Note 13 - Employee Benefit Plans	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Retirement Benefits [Text Block]	( 13 EMPLOYEE BENEFIT PLANS We have defined contribution 401 18 four three nine September 30, 2021, three nine September 30, 2020, 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 nine September 30, 2021, three nine September 30, 2020,

Note 14 - Segment Information

Note 14 - Segment Information	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	( 14 SEGMENT INFORMATION We have two reportable segments, Thermal and EMS, which are also our reporting units. Thermal includes the operations of Temptronic, Thermonics, Sigma, inTEST Thermal Solutions GmbH (Germany), inTEST Pte, Limited (Singapore) and Ambrell. Sales of this segment consist primarily of temperature management systems which we design, manufacture and market under our Temptronic, Thermonics and Sigma product lines, and precision induction heating systems which are designed, manufactured and marketed by Ambrell. In addition, this segment provides post-warranty service and support. EMS includes the operations of our manufacturing facilities in Mt. Laurel, New Jersey and, prior to the consolidation of manufacturing operations late in the fourth 2020, We operate our business worldwide and sell our products both domestically and internationally. Both of our segments sell to semiconductor manufacturers, third Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net Revenues: Thermal $ 13,042 $ 10,724 $ 36,863 $ 29,534 EMS 8,102 3,719 25,657 9,414 $ 21,144 $ 14,443 $ 62,520 $ 38,948 Earnings (loss) before income tax expense (benefit): Thermal $ 865 $ 478 $ 1,991 $ 39 EMS 2,278 169 7,767 (574 ) Corporate (611 ) (214 ) (1,592 ) (242 ) $ 2,532 $ 433 $ 8,166 $ (777 ) Net earnings (loss): Thermal $ 743 $ 379 $ 1,706 $ 26 EMS 1,957 218 6,654 (380 ) Corporate (525 ) (139 ) (1,364 ) (161 ) $ 2,175 $ 458 $ 6,996 $ (515 ) September 30, 2021 December 31, 2020 Identifiable assets: Thermal $ 51,368 $ 50,782 EMS 16,309 9,667 Corporate 7,052 1,581 $ 74,729 $ 62,030 The following tables provide information about our geographic areas of operation. Net revenues from unaffiliated customers are based on the location to which the goods are shipped. Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net revenues: U.S. $ 6,271 $ 5,562 $ 18,650 $ 16,235 Foreign 14,873 8,881 43,870 22,713 $ 21,144 $ 14,443 $ 62,520 $ 38,948 September 30, 2021 December 31, 2020 Net property and equipment: U.S. $ 2,200 $ 2,053 Foreign 197 297 $ 2,397 $ 2,350

Note 15 - Subsequent Events

Note 15 - Subsequent Events	9 Months Ended
	Sep. 30, 2021
Notes to Financial Statements
Subsequent Events [Text Block]	( 15 SUBSEQUENT EVENTS Acquisition of Z-Sciences On October 6, 2021, 2022. The Z-Sciences acquisition will be accounted for as a purchase business combination and, accordingly, the results will be included in our consolidated results of operations from the date of acquisition. We have not December 31, 2021. Acquisition of Videology On October 28, 2021, two not December 31, 2021. Credit Facility As discussed in Note 9, October 15, 2021 ( October 2021 October 2021 April 10, 2020, December 16, 2020, April 10, 2021. October 2021 October 2021 five October 15, 2026 ( two The principal balance of the revolving credit facility and the principal balance of any amount drawn under the Term Note will accrue 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. Currently, this equates to a rate of approximately 2.2%. Each draw under the delayed draw term note will have an option for us of either (i) up to a five five seven five October 2021 The October 2021 not October 2021 October 2021 October 2021 On October 28, 2021, five October 28, 2021, October 2021

Significant Accounting Policies

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Basis Of Presentation And Use Of Estimates [Policy Text Block]	Basis of Presentation and Use of 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, 2020 ( “2020 10 March 23, 2021
Reclassification, Comparability Adjustment [Policy Text Block]	Reclassification
Subsequent Events, Policy [Policy Text Block]	Subsequent Events no nine September 30, 2021 15.
Business Combinations Policy [Policy Text Block]	Business Combinations third
Restructuring And Other Charges [Policy Text Block]	Restructuring and Other Charges In accordance with the guidance in Accounting Standards Codification (“ASC”) Topic 420 may may may 842 360 350
Goodwill Intangible And Long Lived Assets [Policy Text Block]	Goodwill, Intangible and Long-Lived Assets 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 in the fourth not not no Long-lived assets, which consist of finite-lived intangible assets, property and equipment and 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 solutions for use in manufacturing and testing across a wide range of markets including automotive, defense/aerospace, industrial, medical, semiconductor and telecommunications . 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 doubtful accounts, is included in current assets on our balance sheet. To the extent that we do not The allowance for doubtful accounts reflects our best estimate of probable losses inherent in the accounts receivable balance. We determine the allowance based on known troubled accounts, if any, historical experience, and other currently available evidence. 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 14
Inventory, Policy [Policy Text Block]	Inventories first first not three January 1, 2021, not twenty-four January 1, 2021, not twelve
Lessee, Leases [Policy Text Block]	Leases We account for leases in accordance with ASC Topic 842 January 1, 2019. 842, not 842. not not not 842 none 842 not We determine if an arrangement is a lease at inception. A lease contract is within scope if the contract has an identified asset (property, plant or equipment) and grants the lessee the right to control the use of the asset during the lease term. The identified asset may not not 842. not 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 in our consolidated statements of cash flows. We have made an accounting policy election not 842 one See Note 8
Contingent Liability, Repayment of State and Local Grant Funds Received, Policy [Policy Text Block]	Contingent Liability for Repayment of State and Local Grant Proceeds In connection with leasing a new facility in Rochester, New York, which our subsidiary, Ambrell, occupied in May 2018, 2023. may September 30, 2021, not no September 30, 2021. As of December 31, 2020, not December 31, 2020. December 31, 2021 September 30, 2021,
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]	Net Earnings (Loss) Per Common Share Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Weighted average common shares outstanding - basic 10,496,188 10,269,995 10,422,851 10,247,779 Potentially dilutive securities: Unvested shares of restricted stock and employee stock options 296,102 17,567 271,500 - Weighted average common shares and common share equivalents outstanding - diluted 10,792,290 10,287,562 10,694,351 10,247,779 Average number of potentially dilutive securities excluded from calculation 237,545 631,392 283,894 722,538
New Accounting Pronouncements, Policy [Policy Text Block]	Effect of Recently Issued 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)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Schedule of Weighted Average Number of Shares [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Weighted average common shares outstanding - basic 10,496,188 10,269,995 10,422,851 10,247,779 Potentially dilutive securities: Unvested shares of restricted stock and employee stock options 296,102 17,567 271,500 - Weighted average common shares and common share equivalents outstanding - diluted 10,792,290 10,287,562 10,694,351 10,247,779 Average number of potentially dilutive securities excluded from calculation 237,545 631,392 283,894 722,538

Note 3 - Restructuring and Ot_2

Note 3 - Restructuring and Other Charges (Tables)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	EMS Facility Consolidation Executive Management Changes Total Balance – January 1, 2021 $ 233 $ 107 $ 340 Accruals for severance - 120 120 Accruals for other costs associated with facility consolidation 183 - 183 Cash payments (416 ) (140 ) (556 ) Balance – September 30, 2021 $ - $ 87 $ 87

Note 4 - Goodwill and Intangi_2

Note 4 - Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Schedule of Goodwill [Table Text Block]	Sigma $ 1,656 Thermonics 50 Ambrell 12,032 Total $ 13,738
Schedule of Carrying Value of Finite-lived Intangible Assets [Table Text Block]	Balance - January 1, 2021 $ 5,711 Amortization (918 ) Balance September 30, 2021 $ 4,793
Schedule Of Intangible Assets [Table Text Block]	September 30, 2021 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Customer relationships $ 10,480 $ 5,767 $ 4,713 Technology 600 528 72 Patents 590 582 8 Software 270 270 - Trade name 140 140 - Total finite-lived intangible assets 12,080 7,287 4,793 Indefinite-lived intangible assets: Trademarks 6,710 - 6,710 Total intangible assets $ 18,790 $ 7,287 $ 11,503 December 31, 2020 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Finite-lived intangible assets: Customer relationships $ 10,480 $ 4,912 $ 5,568 Technology 600 477 123 Patents 590 570 20 Software 270 270 - Trade name 140 140 - Total finite-lived intangible assets 12,080 6,369 5,711 Indefinite-lived intangible assets: Trademarks 6,710 - 6,710 Total intangible assets $ 18,790 $ 6,369 $ 12,421
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	2021 (remainder) $ 309 2022 $ 1,167 2023 $ 1,067 2024 $ 980 2025 $ 905

Note 5 - Revenue From Contrac_2

Note 5 - Revenue From Contracts With Customers (Tables)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Disaggregation of Revenue [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net revenues by customer type: End user $ 17,366 $ 12,651 $ 54,291 $ 34,518 OEM/Integrator 3,778 1,792 8,229 4,430 $ 21,144 $ 14,443 $ 62,520 $ 38,948 Net revenues by product type: Thermal test $ 5,284 $ 3,632 $ 14,126 $ 11,482 Thermal process 6,412 5,574 18,785 13,885 Semiconductor test 7,951 3,604 25,224 9,093 Service/other 1,497 1,633 4,385 4,488 $ 21,144 $ 14,443 $ 62,520 $ 38,948 Net revenues by market: Semi Market $ 13,656 $ 7,387 $ 42,653 $ 19,256 Multimarket: Industrial 5,463 4,220 13,535 12,346 Defense/aerospace 778 2,015 3,175 4,919 Telecommunications 315 419 870 1,427 Other Multimarkets 932 402 2,287 1,000 $ 21,144 $ 14,443 $ 62,520 $ 38,948

Note 7 - Inventories (Tables)

Note 7 - Inventories (Tables)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Schedule of Inventory, Current [Table Text Block]	September 30, 2021 December 31, 2020 Raw materials $ 6,768 $ 5,371 Work in process 1,148 1,085 Inventory consigned to others 44 45 Finished goods 1,399 975 Total inventories $ 9,359 $ 7,476 Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Excess and obsolete inventory charges $ 61 $ 105 $ 154 $ 410

Note 8 - Leases (Tables)

Note 8 - Leases (Tables)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Lease, Cost [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Operating lease cost $ 247 $ 393 $ 865 $ 1,174 Short-term lease cost $ 20 $ 13 $ 60 $ 35 Range of remaining lease terms (in years) 0.5 to 9.6 Weighted average remaining lease term (in years) 6.0 Weighted average discount rate 4.2 %
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	2021 (remainder) $ 358 2022 1,469 2023 1,482 2024 1,474 2025 722 Thereafter 1,845 Total lease payments $ 7,350 Less imputed interest (811 ) Total $ 6,539
Supplemental Cash Flow Infomation, Lessee [Table Text Block]	Execution of lease for facility in Fremont, California $ 202 Modification to lease for facility in Fremont, California $ 1,176 Modification to lease for facility in Mt. Laurel, New Jersey $ 2,051

Note 9 - Debt (Tables)

Note 9 - Debt (Tables)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Schedule Of Outstanding Letters Of Credit [Table Text Block]	Letters of Credit Amount Outstanding Original L/C Issue Date L/C Expiration Date Lease Expiration Date September 30, 2021 December 31, 2020 Mt. Laurel, NJ 3/29/2010 4/30/2022 4/30/2031 $ 50 $ 90 Mansfield, MA 10/27/2010 12/31/2024 12/31/2024 50 50 $ 100 $ 140

Note 10 - Stock-based Compens_2

Note 10 - Stock-based Compensation (Tables)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Cost of revenues $ 10 $ - $ 17 $ - Selling expense 8 3 17 9 Engineering and product development expense 17 10 43 31 General and administrative expense 336 72 1,017 440 $ 371 $ 85 $ 1,094 $ 480
Schedule of Nonvested Share Activity [Table Text Block]	Number of Shares Weighted Average Grant Date Fair Value Unvested shares outstanding, January 1, 2021 237,155 $ 4.93 Granted 126,209 11.74 Vested (78,206 ) 7.24 Forfeited (18,125 ) 9.02 Unvested shares outstanding, September 30, 2021 267,033 7.19
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	2021 2020 Risk-free interest rate 1.03 % 0.46 % Dividend yield 0.00 % 0.00 % Expected common stock market price volatility factor .50 .44 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 Grant Date Fair Value Options outstanding, January 1, 2021 ( 204,630 438,200 $ 6.25 Granted 282,404 11.77 Exercised (149,010 ) 6.84 Forfeited (80,550 ) 9.55 Options outstanding, September 30, 2021 ( 141,370 491,044 8.70

Note 14 - Segment Information (

Note 14 - Segment Information (Tables)	9 Months Ended
	Sep. 30, 2021
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net Revenues: Thermal $ 13,042 $ 10,724 $ 36,863 $ 29,534 EMS 8,102 3,719 25,657 9,414 $ 21,144 $ 14,443 $ 62,520 $ 38,948 Earnings (loss) before income tax expense (benefit): Thermal $ 865 $ 478 $ 1,991 $ 39 EMS 2,278 169 7,767 (574 ) Corporate (611 ) (214 ) (1,592 ) (242 ) $ 2,532 $ 433 $ 8,166 $ (777 ) Net earnings (loss): Thermal $ 743 $ 379 $ 1,706 $ 26 EMS 1,957 218 6,654 (380 ) Corporate (525 ) (139 ) (1,364 ) (161 ) $ 2,175 $ 458 $ 6,996 $ (515 )
Revenue from External Customers by Geographic Areas [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net revenues: U.S. $ 6,271 $ 5,562 $ 18,650 $ 16,235 Foreign 14,873 8,881 43,870 22,713 $ 21,144 $ 14,443 $ 62,520 $ 38,948
Long-lived Assets by Geographic Areas [Table Text Block]	September 30, 2021 December 31, 2020 Net property and equipment: U.S. $ 2,200 $ 2,053 Foreign 197 297 $ 2,397 $ 2,350
Asset [Member]
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	September 30, 2021 December 31, 2020 Identifiable assets: Thermal $ 51,368 $ 50,782 EMS 16,309 9,667 Corporate 7,052 1,581 $ 74,729 $ 62,030

Note 1 - Nature of Operations (

Note 1 - Nature of Operations (Details Textual)	9 Months Ended
	Sep. 30, 2021
Number of Operating Segments	2

Note 2 - Summary of Significa_3

Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	Sep. 30, 2021USD ($)
Deferred Grant Proceeds	$ 77
City of Rochester and State of New York [Member]
Contingent Liability, Repayment of State and Local Grant Funds Received	463
Covenant, Future Amount Receivable	$ 370

Note 2 - Summary of Significa_4

Note 2 - Summary of Significant Accounting Policies - Weighted Average Common Shares (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Weighted average common shares outstanding - basic (in shares)	10,496,188	10,269,995	10,422,851	10,247,779
Unvested shares of restricted stock and employee stock options (in shares)	296,102	17,567	271,500	0
Weighted average common shares and common share equivalents outstanding - diluted (in shares)	10,792,290	10,287,562	10,694,351	10,247,779
Average number of potentially dilutive securities excluded from calculation (in shares)	237,545	631,392	283,894	722,538

Note 3 - Restructuring and Ot_3

Note 3 - Restructuring and Other Charges (Details Textual) - USD ($) $ in Thousands	Jul. 19, 2021	Jun. 10, 2021	Sep. 30, 2021	Sep. 30, 2020
Incremental Sublease Income Above Impairment Charge	$ 350
Employee Severance [Member]
Restructuring Charges, Total			$ 120
Severance and Other One-Time Termination Benefits [Member]
Restructuring Charges, Total				$ 207
Resignation of Chief Financial Officer [Member]
Restructuring Charges, Total				133
Headcount Reductions and Employee Relocation [Member]
Restructuring Charges, Total				46
EMS Segment Restructuring and Facility Consolidation [Member]
Restructuring Charges, Total				14
Other Restructuring [Member]
Restructuring Charges, Total				$ 14
EMS Segment Restructuring and Facility Consolidation [Member]
Restructuring and Related Costs, Incurred Cost, Total			183
EMS Segment Restructuring and Facility Consolidation [Member] | Employee Severance [Member]
Restructuring Charges, Total			0
Executive Management Changes [Member]
Restructuring and Related Costs, Incurred Cost, Total			370
Executive Management Changes [Member] | Employee Severance [Member]
Restructuring and Related Costs, Incurred Cost, Total		$ 120	120
Restructuring Charges, Total			120
Executive Management Changes [Member] | Employee Severance [Member] | Restructuring and Other Charges [Member]
Restructuring and Related Costs, Incurred Cost, Total			120
Executive Management Changes [Member] | Legal Fees [Member]
Restructuring and Related Costs, Incurred Cost, Total			159
Stock-based Compensation Expense [Member] | Modification Cost [Member]
Restructuring and Related Costs, Incurred Cost, Total			$ 91

Note 3 - Restructuring and Ot_4

Note 3 - Restructuring and Other Charges - Changes in Accrued Restructuring (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021USD ($)
Beginning balance	$ 340
Cash payments	(556)
Balance	87
Employee Severance [Member]
Restructuring chargers, accruals	120
Facility Closing [Member]
Restructuring chargers, accruals	183
EMS Segment Restructuring and Facility Consolidation [Member]
Beginning balance	233
Cash payments	(416)
Balance	0
EMS Segment Restructuring and Facility Consolidation [Member] | Employee Severance [Member]
Restructuring chargers, accruals	0
EMS Segment Restructuring and Facility Consolidation [Member] | Facility Closing [Member]
Restructuring chargers, accruals	183
Executive Management Changes [Member]
Beginning balance	107
Cash payments	(140)
Balance	87
Executive Management Changes [Member] | Employee Severance [Member]
Restructuring chargers, accruals	120
Executive Management Changes [Member] | Facility Closing [Member]
Restructuring chargers, accruals	$ 0

Note 4 - Goodwill and Intangi_3

Note 4 - Goodwill and Intangible Assets (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Number of Operating Segments			2
Goodwill, Ending Balance	$ 13,738		$ 13,738		$ 13,738	$ 13,738
Amortization of Intangible Assets, Total	$ 309	$ 307	$ 918	$ 927

Note 4 - Goodwill and Intangi_4

Note 4 - Goodwill and Intangible Assets - Component of Goodwill (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Goodwill	$ 13,738	$ 13,738	$ 13,738
Sigma [Member]
Goodwill	1,656
Thermonics [Member]
Goodwill	50
Ambrell [Member]
Goodwill	$ 12,032

Note 4 - Goodwill and Intangi_5

Note 4 - Goodwill and Intangible Assets - Changes in the Amount of the Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Balance			$ 5,711
Amortization	$ (309)	$ (307)	(918)	$ (927)
Balance	$ 4,793		$ 4,793

Note 4 - Goodwill and Intangi_6

Note 4 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Finite-lived, Gross Carrying Amount	$ 12,080	$ 12,080
Finite-lived, Accumulated Amortization	7,287	6,369
Net Carrying Amount, finite-lived	4,793	5,711
Intangible Assets, Gross Carrying Amount	18,790	18,790
Net Carrying Amount	11,503	12,421
Trademarks [Member]
Indefinite-lived, Gross Carrying Amount	6,710	6,710
Net Carrying Amount, indefinite-lived	6,710	6,710
Customer Relationships [Member]
Finite-lived, Gross Carrying Amount	10,480	10,480
Finite-lived, Accumulated Amortization	5,767	4,912
Net Carrying Amount, finite-lived	4,713	5,568
Patented Technology [Member]
Finite-lived, Gross Carrying Amount	600	600
Finite-lived, Accumulated Amortization	528	477
Net Carrying Amount, finite-lived	72	123
Patents [Member]
Finite-lived, Gross Carrying Amount	590	590
Finite-lived, Accumulated Amortization	582	570
Net Carrying Amount, finite-lived	8	20
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

Note 4 - Goodwill and Intangi_7

Note 4 - Goodwill and Intangible Assets - Future Amortization Expense (Details) $ in Thousands	Sep. 30, 2021USD ($)
2021 (remainder)	$ 309
2022	1,167
2023	1,067
2024	980
2025	$ 905

Note 5 - Revenue From Contrac_3

Note 5 - Revenue From Contracts With Customers (Details Textual) $ in Thousands	9 Months Ended
	Sep. 30, 2021USD ($)
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		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net revenues	$ 21,144	$ 14,443	$ 62,520	$ 38,948
Semiconductor Market [Member]
Net revenues	13,656	7,387	42,653	19,256
Industrial Market [Member]
Net revenues	5,463	4,220	13,535	12,346
Defense/ Aerospace [Member]
Net revenues	778	2,015	3,175	4,919
Telecommunications Market [Member]
Net revenues	315	419	870	1,427
Other Multi Markets [Member]
Net revenues	932	402	2,287	1,000
Thermal Testing Products [Member]
Net revenues	5,284	3,632	14,126	11,482
Thermal Process [Member]
Net revenues	6,412	5,574	18,785	13,885
Semiconductor Production Test Products [Member]
Net revenues	7,951	3,604	25,224	9,093
Service and Other Products [Member]
Net revenues	1,497	1,633	4,385	4,488
End User [Member]
Net revenues	17,366	12,651	54,291	34,518
OEM and Integrators [Member]
Net revenues	$ 3,778	$ 1,792	$ 8,229	$ 4,430

Note 6 - Major Customers (Detai

Note 6 - Major Customers (Details Textual)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Number of Major Customers	0	0
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Texas Instruments Incorporated [Member]
Concentration Risk, Percentage	14.00%

Note 7 - Inventories - Inventor

Note 7 - Inventories - Inventories (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Raw materials	$ 6,768		$ 6,768		$ 5,371
Work in process	1,148		1,148		1,085
Inventory consigned to others	44		44		45
Finished goods	1,399		1,399		975
Total inventories	9,359		9,359		$ 7,476
Excess and obsolete inventory charges	$ 61	$ 105	$ 154	$ 410

Note 8 - Leases (Details Textua

Note 8 - Leases (Details Textual) $ in Thousands	Aug. 16, 2021USD ($)ft²	Jul. 19, 2021USD ($)	Sep. 22, 2020USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2021USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)
Operating Lease, Right-of-Use Asset, Amortization Expense				$ 231	$ 324		$ 760	$ 977
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability						$ 1,176
Incremental Sublease Income Above Impairment Charge		$ 350
EMS Segment Restructuring and Facility Consolidation [Member]
Operating Lease, Impairment Loss									$ 522
Lease Facility in Fremont, California [Member]
Area of Real Estate Property (Square Foot) | ft²	3,888
Lessee, Operating Lease, Term of Contract (Month)	38 months 15 days
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 202						$ 202
Lease Agreement, EMS Facility in Mt. Laurel, New Jersey [Member]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 2,051
Lessee, Operating Lease, Renewal Term (Month)			120 months

Note 8 - Leases - Lease Costs (

Note 8 - Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating lease cost	$ 247	$ 393	$ 865	$ 1,174
Short-term lease cost	$ 20	$ 13	$ 60	$ 35
Weighted average remaining lease term (in years) (Year)	6 years		6 years
Weighted average discount rate	4.20%		4.20%
Minimum [Member]
Range of remaining lease terms (in years) (Year)			6 months
Maximum [Member]
Range of remaining lease terms (in years) (Year)			9 years 7 months 6 days

Note 8 - Leases - Maturities of

Note 8 - Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Sep. 30, 2021USD ($)
2021 (remainder)	$ 358
2022	1,469
2023	1,482
2024	1,474
2025	722
Thereafter	1,845
Total lease payments	7,350
Less imputed interest	(811)
Total	$ 6,539

Note 8 - Leases - Lease Modific

Note 8 - Leases - Lease Modifications (Details) - USD ($) $ in Thousands	Aug. 16, 2021	Sep. 22, 2020	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Execution of lease for facility in Fremont, California			$ 1,176
Lease Facility in Fremont, California [Member]
Execution of lease for facility in Fremont, California	$ 202			$ 202
Lease Agreement, EMS Facility in Fremont, California [Member]
Modification to lease for facility					$ 1,176
Lease Agreement, EMS Facility in Mt. Laurel, New Jersey [Member]
Execution of lease for facility in Fremont, California		$ 2,051
Modification to lease for facility					$ 2,051

Note 9 - Debt - Outstanding Let

Note 9 - Debt - Outstanding Letters of Credit (Details) - Letter of Credit [Member] - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Letters of Credit Amount Outstanding	$ 100	$ 140
Mt Laurel [Member]
Line of Credit, Issue Date	Mar. 29, 2010
Line of Credit, Expiration Date	Apr. 30, 2022
Lease Expiration Date	Apr. 30, 2031
Letters of Credit Amount Outstanding	$ 50	90
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 10 - Stock-based Compens_3

Note 10 - Stock-based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	Jun. 14, 2021	Mar. 10, 2021	Aug. 24, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total				$ 2,928				$ 2,928
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)								2 years 7 months 6 days
Share-based Payment Arrangement, Amount Capitalized				$ 0	$ 0		$ 0	$ 0
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, Vested in Period, Fair Value								$ 981	$ 296
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)								10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)								$ 5.70	$ 1.48
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)								126,209
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								25.00%
Restricted Stock [Member] | Independent Directors [Member] | Share-based Compensation Award, Tranche Four [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage								25.00%
Restricted Stock [Member] | Independent Directors [Member] | Share-based Payment Arrangement, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage								25.00%
Restricted Stock [Member] | Independent Directors [Member] | Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage								25.00%
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
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] | 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
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range			0.00%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range			150.00%
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			25.00%
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
Restricted Stock [Member] | President [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										100.00%
Restricted Stock [Member] | President [Member] | Share-based Compensation Award, Tranche Four [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			25.00%
Restricted Stock [Member] | President [Member] | Share-based Payment Arrangement, Tranche Three [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			25.00%
Restricted Stock [Member] | President [Member] | Share-based Payment Arrangement, Tranche Two [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			25.00%
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)		18,000
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 Period (Year)						3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage						100.00%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range		0.00%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range		150.00%
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
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, Equity Instruments Other than Options, Grants in Period (in shares)	5,953
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Lower Range	0.00%
Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights Percentage Upper Range	150.00%
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	25.00%
Restricted Stock [Member] | Chief Financial Officer [Member] | Vesting Based On Performance Metrics [Member] | Restricted Stock Vesting on August 24, 2023 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage								100.00%
Restricted Stock [Member] | Chief Financial Officer [Member] | Share-based Compensation Award, Tranche Four [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	25.00%
Restricted Stock [Member] | Chief Financial Officer [Member] | Share-based Payment Arrangement, Tranche Three [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	25.00%
Restricted Stock [Member] | Chief Financial Officer [Member] | Share-based Payment Arrangement, Tranche Two [Member] | Restricted Stock Vesting in Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	25.00%

Note 10 - Stock-based Compens_4

Note 10 - Stock-based Compensation - Allocation of Share-based Compensation Expense (Details) - Restricted Stock [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Allocation of Share-based Compensation Expense	$ 371	$ 85	$ 1,094	$ 480
Cost of Sales [Member]
Allocation of Share-based Compensation Expense	10	0	17	0
Selling and Marketing Expense [Member]
Allocation of Share-based Compensation Expense	8	3	17	9
Research and Development Expense [Member]
Allocation of Share-based Compensation Expense	17	10	43	31
General and Administrative Expense [Member]
Allocation of Share-based Compensation Expense	$ 336	$ 72	$ 1,017	$ 440

Note 10 - Stock-based Compens_5

Note 10 - Stock-based Compensation - Unvested Stock Activity (Details) - Restricted Stock [Member]	9 Months Ended
	Sep. 30, 2021$ / sharesshares
Unvested shares outstanding (in shares) | shares	237,155
Unvested shares outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 4.93
Granted, number of shares (in shares) | shares	126,209
Granted, weighted average exercise price (in dollars per share) | $ / shares	$ 11.74
Vested, number of shares (in shares) | shares	(78,206)
Vested, weighted average exercise price (in dollars per share) | $ / shares	$ 7.24
Forfeited, number of shares (in shares) | shares	(18,125)
Forfeited, weighted average exercise price (in dollars per share) | $ / shares	$ 9.02
Unvested shares outstanding (in shares) | shares	267,033
Unvested shares outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 7.19

Note 10 - Stock-based Compens_6

Note 10 - Stock-based Compensation - Stock Options Valuation Assumptions (Details) - Share-based Payment Arrangement, Option [Member]	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Risk-free interest rate	1.03%	0.46%
Dividend yield	0.00%	0.00%
Expected common stock market price volatility factor	50.00%	44.00%
Weighted average expected life of stock options (years) (Year)	6 years 3 months	6 years 3 months

Note 10 - Stock-based Compens_7

Note 10 - Stock-based Compensation - Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2021$ / sharesshares
Options outstanding, number of shares (in shares) | shares	438,200
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 6.25
Granted, number of shares (in shares) | shares	282,404
Granted, weighted average exercise price (in dollars per share) | $ / shares	$ 11.77
Exercised, number of shares (in shares) | shares	(149,010)
Exercised, weighted average exercise price (in dollars per share) | $ / shares	$ 6.84
Forfeited, number of shares (in shares) | shares	(80,550)
Forfeited, weighted average exercise price (in dollars per share) | $ / shares	$ 9.55
Options outstanding, number of shares (in shares) | shares	491,044
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 8.70

Note 10 - Stock-based Compens_8

Note 10 - Stock-based Compensation - Stock Option Activity (Details) (Parentheticals)	Sep. 30, 2021shares
Options exercisable (in shares)	204,630
Options exercisable (in shares)	141,370

Note 11 - Stock Repurchase Pl_2

Note 11 - Stock Repurchase Plan (Details Textual) - USD ($) $ in Thousands	3 Months Ended	52 Months Ended
	Mar. 31, 2020	Mar. 02, 2020	Jul. 31, 2019
Stock Repurchase Program, Authorized Amount			$ 3,000
Stock Repurchased and Retired During Period, Shares (in shares)		243,075
Stock Repurchased and Retired During Period, Value	$ 74	$ 1,216
Payments for Stock Repurchased Broker Fees		$ 6

Note 12 - Employee Stock Purc_2

Note 12 - Employee Stock Purchase Plan (Details Textual)	Jun. 23, 2021shares
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	250,000

Note 13 - Employee Benefit Pl_2

Note 13 - Employee Benefit Plans (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
401(k) Plan [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			10.00%
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	$ 51	$ 56	$ 322	$ 313
The Ambrell Plan [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			10.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 44	$ 17	$ 131	$ 49
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent			100.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match			50.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount			$ 5

Note 14 - Segment Information_2

Note 14 - Segment Information (Details Textual)	9 Months Ended
	Sep. 30, 2021
Number of Reportable Segments	2

Note 14 - Segment Information -

Note 14 - Segment Information - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Net revenues	$ 21,144			$ 14,443			$ 62,520	$ 38,948
Earnings (loss) before income tax expense (benefit)	2,532			433			8,166	(777)
Net earnings (loss)	2,175	$ 2,609	$ 2,212	458	$ 170	$ (1,143)	6,996	(515)
Corporate, Non-Segment [Member]
Earnings (loss) before income tax expense (benefit)	(611)			(214)			(1,592)	(242)
Net earnings (loss)	(525)			(139)			(1,364)	(161)
Thermal Testing Products [Member] | Operating Segments [Member]
Net revenues	13,042			10,724			36,863	29,534
Earnings (loss) before income tax expense (benefit)	865			478			1,991	39
Net earnings (loss)	743			379			1,706	26
EMS [Member] | Operating Segments [Member]
Net revenues	8,102			3,719			25,657	9,414
Earnings (loss) before income tax expense (benefit)	2,278			169			7,767	(574)
Net earnings (loss)	$ 1,957			$ 218			$ 6,654	$ (380)

Note 14 - Segment Information_3

Note 14 - Segment Information - Identifiable Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Identifiable Assets	$ 74,729	$ 62,030
Corporate, Non-Segment [Member]
Identifiable Assets	7,052	1,581
Thermal Testing Products [Member]
Identifiable Assets	51,368	50,782
EMS [Member]
Identifiable Assets	$ 16,309	$ 9,667

Note 14 - Segment Information_4

Note 14 - Segment Information - Net Revenue From Unaffiliated Customers (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net revenues	$ 21,144	$ 14,443	$ 62,520	$ 38,948
UNITED STATES
Net revenues	6,271	5,562	18,650	16,235
Non-US [Member]
Net revenues	$ 14,873	$ 8,881	$ 43,870	$ 22,713

Note 14 - Segment Information_5

Note 14 - Segment Information - Long-lived Assets by Geographical Area (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property and Equipment	$ 2,397	$ 2,350
UNITED STATES
Property and Equipment	2,200	2,053
Non-US [Member]
Property and Equipment	$ 197	$ 297

Note 15 - Subsequent Events (De

Note 15 - Subsequent Events (Details Textual) - Subsequent Event [Member] - USD ($) $ in Thousands	Oct. 28, 2021	Oct. 15, 2021	Oct. 06, 2021
October 2021 Agreement [Member] | M&T Bank [Member]
Debt Instrument, Term (Year)		5 years
Debt Instrument, Interest Rate in Event of Default		2.00%
October 2021 Agreement [Member] | M&T Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 10,000
October 2021 Agreement [Member] | M&T Bank [Member] | Term Note [Member]
Debt Instrument, Face Amount		$ 25,000
Debt Instrument, Draw Period (Year)		2 years
Debt Instrument, Interest Rate, Stated Percentage		2.20%
Proceeds from Issuance of Long-term Debt, Total	$ 12,000
Debt Instrument, Interest Rate, Effective Percentage	3.20%
Z-Sciences [Member]
Payments to Acquire Businesses, Gross			$ 500
Business Combination, Consideration Transferred, Amount Held in Escrow			$ 200
Videology [Member]
Payments to Acquire Businesses, Gross	$ 12,000
Business Combination, Consideration Transferred, Amount Held in Escrow	$ 1,200