PC Tel (PCTI) 10-Q 9 Aug 22 2022 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2022	Aug. 09, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Entity Registrant Name	PCTEL, Inc.
Entity Central Index Key	0001057083
Entity Incorporation, State or Country Code	DE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock
Trading Symbol	PCTI
Security Exchange Name	NASDAQ
Entity File Number	000-27115
Entity Tax Identification Number	77-0364943
Entity Address, Address Line One	471 Brighton Drive
Entity Address, City or Town	Bloomingdale
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60108
City Area Code	630
Local Phone Number	372-6800
Entity Common Stock Shares Outstanding		18,677,851
Document Quarterly Report	true
Document Transition Report	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
ASSETS
Cash and cash equivalents	$ 5,797	$ 8,192
Short-term investment securities	22,276	22,562
Accounts receivable, net of allowances of $79 and $64 at June 30, 2022 and December 31, 2021, respectively	19,311	18,905
Inventories, net	14,189	13,691
Prepaid expenses and other assets	1,774	1,747
Total current assets	63,347	65,097
Property and equipment, net	10,784	11,949
Long-term investment securities	250	0
Goodwill	5,986	6,334
Intangible assets, net	1,231	1,579
Other noncurrent assets	2,314	2,438
TOTAL ASSETS	83,912	87,397
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	5,630	5,360
Accrued liabilities	9,867	11,117
Total current liabilities	15,497	16,477
Long-term liabilities	3,732	3,999
Total liabilities	19,229	20,476
Stockholders’ equity:
Common stock, $0.001 par value, 50,000,000 shares authorized at June 30, 2022 and December 31, 2021, respectively, and 18,677,851 and 18,238,030 shares issued and outstanding at June 30, 2022 and December 31, 2021	19	18
Additional paid-in capital	123,844	123,998
Accumulated deficit	(57,888)	(56,735)
Accumulated other comprehensive loss	(1,292)	(360)
Total stockholders’ equity	64,683	66,921
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 83,912	$ 87,397

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) (unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Statement Of Financial Position [Abstract]
Allowance for accounts receivable	$ 79	$ 64
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	18,677,851	18,238,030
Common stock, shares outstanding	18,677,851	18,238,030

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
REVENUES	$ 24,976	$ 21,681	$ 47,518	$ 39,388
COST OF REVENUES	13,549	11,739	26,758	21,108
GROSS PROFIT	11,427	9,942	20,760	18,280
OPERATING EXPENSES:
Research and development	3,356	3,221	6,605	6,416
Sales and marketing	3,908	3,388	7,310	6,151
General and administrative	3,451	3,335	6,694	6,411
Amortization of intangible assets	67	55	138	55
Restructuring expenses	317	60	1,252	60
Total operating expenses	11,099	10,059	21,999	19,093
OPERATING INCOME (LOSS)	328	(117)	(1,239)	(813)
Other income (expense), net	114	(45)	125	(6)
INCOME (LOSS) BEFORE INCOME TAXES	442	(162)	(1,114)	(819)
Expense for income taxes	31	7	39	12
NET INCOME (LOSS)	$ 411	$ (169)	$ (1,153)	$ (831)
Net Income (Loss) per Share:
Basic	$ 0.02	$ (0.01)	$ (0.06)	$ (0.05)
Diluted	$ 0.02	$ (0.01)	$ (0.06)	$ (0.05)
Weighted Average Shares:
Basic	18,156,561	18,240,811	18,064,616	18,157,941
Diluted	18,156,561	18,240,811	18,064,616	18,157,941

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 411	$ (169)	$ (1,153)	$ (831)
OTHER COMPREHENSIVE LOSS:
Foreign currency translation adjustments	(706)	(70)	(932)	(86)
COMPREHENSIVE LOSS	$ (295)	$ (239)	$ (2,085)	$ (917)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid - In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
BALANCE at beginning of year at Dec. 31, 2020	$ 71,398	$ 18	$ 128,250	$ (56,888)	$ 18
Stock-based compensation expense	1,657	1	1,656	0	0
Issuance of shares for stock purchase plans and stock options	418	0	418	0	0
Cancellation of shares for payment of withholding tax	(782)	0	(782)	0	0
Repurchase of common stock	(733)	0	(733)	0	0
Dividends paid	(2,018)	0	(2,018)	0	0
Net (loss) income	(831)	0	0	(831)	0
Change in cumulative translation adjustment, net	(86)	0	0	0	(86)
BALANCE at end of year at Jun. 30, 2021	69,023	19	126,791	(57,719)	(68)
BALANCE at beginning of year at Mar. 31, 2021	69,645	19	127,174	(57,550)	2
Stock-based compensation expense	1,039	0	1,039	0	0
Issuance of shares for stock purchase plans and stock options	410	0	410	0	0
Cancellation of shares for payment of withholding tax	(123)	0	(123)	0	0
Repurchase of common stock	(702)	0	(702)	0	0
Dividends paid	(1,007)	0	(1,007)	0	0
Net (loss) income	(169)	0	0	(169)	0
Change in cumulative translation adjustment, net	(70)	0	0	0	(70)
BALANCE at end of year at Jun. 30, 2021	69,023	19	126,791	(57,719)	(68)
BALANCE at beginning of year at Dec. 31, 2021	66,921	18	123,998	(56,735)	(360)
Stock-based compensation expense	1,860	1	1,859	0	0
Issuance of shares for stock purchase plans and stock options	404	0	404	0	0
Cancellation of shares for payment of withholding tax	(396)	0	(396)	0	0
Dividends paid	(2,021)	0	(2,021)	0	0
Net (loss) income	(1,153)	0	0	(1,153)	0
Change in cumulative translation adjustment, net	(932)	0	0	0	(932)
BALANCE at end of year at Jun. 30, 2022	64,683	19	123,844	(57,888)	(1,292)
BALANCE at beginning of year at Mar. 31, 2022	64,512	18	123,379	(58,299)	(586)
Stock-based compensation expense	1,086	1	1,085	0	0
Issuance of shares for stock purchase plans and stock options	404	0	404	0	0
Cancellation of shares for payment of withholding tax	(4)	0	(4)	0	0
Dividends paid	(1,020)	0	(1,020)	0	0
Net (loss) income	411	0	0	411	0
Change in cumulative translation adjustment, net	(706)	0	0	0	(706)
BALANCE at end of year at Jun. 30, 2022	$ 64,683	$ 19	$ 123,844	$ (57,888)	$ (1,292)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) (unaudited) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement Of Stockholders Equity [Abstract]
Cash dividend per share	$ 0.055	$ 0.055	$ 0.11	$ 0.11

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating Activities:
Net loss	$ (1,153)	$ (831)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	1,562	1,493
Intangible asset amortization	177	70
Stock-based compensation	1,860	1,657
Loss on disposal of property and equipment	7	3
Restructuring costs	(328)	45
Bad debt provision	17	(34)
Changes in operating assets and liabilities:
Accounts receivable	(614)	1,260
Inventories	(715)	(1,121)
Prepaid expenses and other assets	100	532
Accounts payable	435	(630)
Income taxes payable	(1)	(18)
Other accrued liabilities	(900)	624
Deferred revenue	(126)	63
Net cash provided by operating activities	321	3,113
Investing Activities:
Capital expenditures	(420)	(1,266)
Purchases of investments	(15,587)	(16,058)
Redemptions/maturities of short-term investments	15,623	26,278
Cash paid for acquisition, net of cash acquired	0	(6,277)
Net cash (used in) provided by investing activities	(384)	2,677
Financing Activities:
Proceeds from issuance of common stock	404	418
Payment of withholding tax on stock-based compensation	(396)	(782)
Principal payments on finance leases	(37)	(35)
Purchase of common stock from repurchase program	0	(733)
Cash dividends	(2,021)	(2,018)
Net cash used in financing activities	(2,050)	(3,150)
Net (decrease) increase in cash and cash equivalents	(2,113)	2,640
Effect of exchange rate changes on cash	(282)	24
Cash and cash equivalents, beginning of period	8,192	5,761
Cash and Cash Equivalents, End of Period	$ 5,797	$ 8,425

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2022
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	1. Basis of Presentation The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments of a normal, recurring nature that are Throughout this Quarterly Report on Form 10-Q, including under Part 1, Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” we disclose certain macroeconomic impacts of the novel coronavirus (“COVID-19”) pandemic and the ensuing supply chain disruption. The full extent to which the COVID-19 pandemic will directly or indirectly impact the Company’s business, results of operations and financial condition will depend on future developments that remain highly uncertain at this time. Nature of Operations PCTEL, Inc. (“PCTEL” or “the Company”) was incorporated in California in 1994 and reincorporated in Delaware in 1998. The Company is a leading global provider of wireless technology, including purpose-built Industrial IoT devices, antenna systems, and test and measurement solutions. PCTEL solves complex wireless challenges to help organizations stay connected, transform, and grow. and it has expertise in RF, digital and mechanical engineering. The Company has two businesses (antennas & Industrial IoT devices and test & measurement products). These businesses are supported by the Company’s talent and expertise in RF, digital, and mechanical engineering. The Company’s principal executive offices are located at 471 Brighton Drive, Bloomingdale, Illinois 60108. The telephone number at that address is (630) 372-6800 and the website is www.pctel.com. Additional information about the Company can be obtained on the Company’s website; however, the information within, or that can be accessed through, the Company’s website is not part of this Quarterly Report on Form 10-Q. Basis of Consolidation The unaudited interim condensed consolidated financial statements of the Company include the condensed consolidated balance sheets for the period ended June 30, 2022 and December 31, 2021, the condensed consolidated statement of cash flows for the six months ended June 30, 2022 and 2021, and the condensed consolidated statements of operations, condensed consolidated statements of comprehensive (loss) income, and the condensed consolidated statements of stockholders’ equity for the three and six months ended June 30, 2022 and 2021, respectively. The interim condensed consolidated financial statements are unaudited and reflect all adjustments of a normal recurring nature that are, in the opinion of management, necessary for a fair presentation of the interim period financial statements. The condensed consolidated balance sheet as of December 31, 2021 is derived from the audited financial statements as of December 31, 2021. The unaudited interim condensed consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. The significant accounting policies followed by the Company are set forth in the 2021 Form 10-K. There were no material changes in the Company’s significant accounting policies during the three and six months ended June 30, 2022. In addition, the Company reaffirms the use of estimates in the preparation of the financial statements as set forth in the 2021 Form 10-K. These unaudited interim condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the 2021 Form 10-K. The results of operations for the period ended June 30, 2022 may not be indicative of the results for the period ending December 31, 2022. Foreign Operations Cross-border transactions, both with external parties and in our internal operations, result in exposure to foreign exchange rate fluctuations. We are exposed to currency risk by having foreign locations with suppliers and employees located outside the U.S. Fluctuations could have an adverse effect on our results of operations and cash flows. We manage certain operating activities at the local level with revenues, costs, assets, and liabilities generally being denominated in local currencies. However, our results of operations and assets and liabilities are reported in U.S. dollars and thus will fluctuate with changes in exchange rates between such local currencies and the U.S. dollar. Gains and losses resulting from transactions originally in foreign currencies and then translated into U.S. dollars are included in the condensed consolidated statements of operations. For the six months ended June 30 , 202 2 , approximately 11 % of revenues and % of expenses were transacted in foreign currencies as compared to 6 % and % for the six months ended June 3 0 , 20 2 1 . Net foreign exchange gains ( losses ) resulting from foreign currency transactions included in other income, net were $ 75 and $ (53) for the three months ended June 30, 202 2 and 202 1 , respectively. Net foreign exchange gains (losses) resulting from foreign currency transactions included in other income, net was $ 73 and $ (45) for the six months ended June 30 , 202 2 and 202 1 , respectively. Recent Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (“FASB”) issued Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (ASU 2017-14). This new guidance eliminates the requirement to calculate the implied fair value of goodwill to measure a goodwill impairment charge. Instead, entities will record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value. The changes are effective for smaller reporting companies for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, and early adoption is permitted. The Company is currently evaluating the impact that this guidance will have on its consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This update provides optional expedients and exceptions for applying generally accepted accounting principles to certain contract modifications and hedging relationships that reference London Inter-bank Offered Rate (LIBOR) or another reference rate expected to be discontinued. Topic 848 is effective upon issuance and generally can be applied through December 31, 2022. The Company does not expect the adoption of this standard to have an impact on the financial statements or the related disclosures. In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. This update requires that an acquirer recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606 as if the acquirer had originated the contracts. This ASU should be applied prospectively to business combinations occurring on or after the effective date of the update. This update is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period, but should be applied to all acquisitions occurring in the annual period of adoption. The Company is currently evaluating the impact of this ASU on our consolidated financial statements and related disclosures. In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 831): Disclosures by Business Entities about Government Assistance. This update, which aims to increase transparency of government assistance, requires annual disclosures about transactions with a government that are accounted for by applying a grant or contribution accounting model. Under this ASU, an entity is required to disclose (1) the types of assistance, (2) an entity’s accounting for assistance, and (3) the effect of the assistance on an entity’s financial statements. This Update is effective for all entities within their scope for financial statements issued for annual periods beginning after December 15, 2021. Early adoption is permitted. The Company evaluated the effect of adoption of the update and concluded it does not have an impact on the consolidated financial statements or the related disclosures. In June 2022, the FASB issues ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. This update clarifies the guidance in Topic 820 on the fair value measurement of an equity security that is subject to contractual restrictions that prohibit the sale of an equity security. This update also requires specific disclosures related to such an equity security including (1) the fair value of such equity securities reflected in the balance sheet, (2) the nature and remaining duration of the corresponding restrictions, and (3) any circumstances that could cause a lapse in the restrictions. This ASU is effective for all public business entities in fiscal years beginning after December 15, 2023, and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact of this ASU on our consolidated financial statements and related disclosures.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	2. Fair Value of Financial Instruments The Company follows accounting guidance for fair value measurements and disclosures, which establishes a fair value hierarchy that requires the Company to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, a three-tier fair value hierarchy has been established, which prioritizes the inputs used in measuring fair value as follows: Level 1: inputs are unadjusted quoted prices in active markets for identical assets or liabilities. Level 2: inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of assets or liabilities. Level 3: unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Cash equivalents are measured at fair value and investments are recognized at amortized cost in the Company’s financial statements. Accounts receivable is a financial asset with a carrying value that approximates fair value due to the short-term nature of these assets. Accounts payable, accrued employee compensation and certain operating liabilities are financial liabilities with a carrying value that approximates fair value due to the short-term nature of these liabilities.

Income (Loss) per Share

Income (Loss) per Share	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Income (Loss) per Share	3. Income (Loss) per Share The following table is the computation of basic and diluted income per share: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Basic Income Per Share computation: Numerator: Net Income (loss) $ 411 $ (169 ) $ (1,153 ) $ (831 ) Denominator: Weighted shares outstanding - basic 18,156,561 18,240,811 18,064,616 18,157,941 Net Income (loss) per common share - basic $ 0.02 $ (0.01 ) $ (0.06 ) $ (0.05 ) Diluted Income Per Share computation: Denominator: Weighted shares outstanding - basic 18,156,561 18,240,811 18,064,616 18,157,941 Weighted shares outstanding - diluted 18,156,561 18,240,811 18,064,616 18,157,941 Net Income (loss) per common share - diluted $ 0.02 $ (0.01 ) $ (0.06 ) $ (0.05 )

Business Combinations

Business Combinations	6 Months Ended
	Jun. 30, 2022
Business Combinations [Abstract]
Business Combination	4. Business Combinations On April 30, 2021, the Company acquired all the outstanding stock of Smarteq Wireless Aktiebolag (“Smarteq”), a Swedish company based in Kista, Sweden that designs antennas for specialized Industrial IoT and vehicular applications, pursuant to a Share Sale and Purchase Agreement (the “SPA”) between PCTEL and Allgon Aktiebolag, a Swedish company and holder of the outstanding stock of Smarteq. Smarteq owns all the outstanding stock of SAS Smarteq France (“Smarteq France”), which engages in sales of Smarteq products. Pursuant to the SPA, the Company acquired Smarteq for a cash purchase price consisting of SEK 53.0 million plus working capital adjustments of SEK 1.6 million and an adjustment for the net cash at closing of SEK 2.1 million for total cash consideration of SEK 56.8 million ($6.8 million), all of which was provided from PCTEL’s existing cash. The Company believes the acquisition of Smarteq provides a strong local presence, expertise, and channel partners to accelerate revenue growth in Europe, as well as a complementary portfolio of products. The results for Smarteq are combined with the Company’s antenna and Industrial IoT device product line. The Company applied the provisions of Accounting Standards Codification (“ASC”) 805, Business Combinations, in accounting for its acquisitions. It requires the Company to recognize separately from goodwill the assets acquired, and the liabilities assumed, at the acquisition date fair values. Goodwill as of the acquisition date is measured as the excess of consideration transferred over the acquisition date fair values of the net assets acquired and the liabilities assumed. The Company used its best estimates and assumptions where applicable to accurately value assets acquired and liabilities assumed at the acquisition date. The operating results of the acquired business are included in the Company’s Consolidated Financial Statements from the date of the acquisition. Fair Value of Purchase Consideration: The following table summarizes the fair value of purchase consideration to acquire Smarteq: Fair value of purchase consideration Cash $ 6,785 Working capital adjustment (5 ) Total purchase consideration $ 6,780 Purchase Price Allocation: The Company acquired all of the assets and liabilities of Smarteq, including cash of $0.5 million and debt of $0.1 million. The following is an allocation of the purchase price as of the April 30, 2021 closing date based upon the fair value of the assets acquired and liabilities assumed by the Company in the acquisition: Purchase Price Allocation: Cash $ 503 Accounts receivable 1,415 Prepaid expenses and other assets 109 Inventories 1,286 Right of use assets 232 Property and equipment 131 Intangible assets 1,983 Accounts payable (981 ) Accrued liabilities (837 ) Lease liabilities - short-term (102 ) Lease liabilities - long-term (112 ) Debt (91 ) Identifiable assets acquired $ 3,536 Goodwill 3,244 Total purchase price $ 6,780 The following is a summary of identifiable intangible assets acquired and the related expected lives for the finite-lived intangible assets: Finite-lived assets: Customer relationships $ 787 Trade names 639 Technology 438 Other intangible assets 119 $ 1,983 Intangible Assets: Useful Life Customer relationships 5 years Trade names 5 years Technology 5 years Other intangible assets .5 to 5 years Assumptions in the Allocations of Purchase Price The Company prepared the purchase price allocation for the acquired Smarteq assets and in doing so utilized reports of a third-party valuation expert to calculate the fair value of the identifiable intangible assets. Estimates of fair value required management to make significant estimates and assumptions. The goodwill recognized is attributable primarily to the acquired workforce, expected synergies, and other benefits that the Company believes will result from integrating the Smarteq operations with the operations of the Company. The Company completed the final purchase price allocation. The fair value of the customer relationships was determined using the multi-period excess earnings method (“MPEEM”). MPEEM estimates the value of an intangible asset by quantifying the amount of residual (or excess) cash flows generated by the future customer cash flows and discounting those cash flows to the present value. Future cash flows for customers were estimated based on forecasted revenue and costs, taking into account the growth rates, customer attrition, and contributory charges. The fair value of the customer backlog was calculated using the present value of the cash flows associated with the acquired backlog. The fair values of the trade names, developed technology, and exclusive rights were determined using the relief-from-royalty method. The relief-from-royalty method is a specific application of the discounted-cash-flow method, which is a form of the income approach. It is based on the principle that ownership of the intangible asset relieves the owner of the need to pay a royalty to another party in exchange for rights to use the asset. Key assumptions to estimate the hypothetical royalty rate include observable royalty rates, which are royalty rates in negotiated licenses and market-based royalty rates which are royalty rates found in available market data for licenses involving similar assets. The fair value of covenants not to compete was estimated using the with-or-without method. The with-and-without method estimates the value of an intangible asset by quantifying the loss of economic profits under a hypothetical condition where only the subject intangible does not exist and needs to be re-created. Projected revenues, operating expenses and cash flows are calculated in each "with" and "without" scenario and the difference in the cash flow is discounted to present value. Inventory was valued at net realizable value. Raw materials were valued at book value and finished goods were valued assuming hypothetical revenues from finished goods adjusted for disposal costs, profit attributable to the seller and holding costs. An inventory step-up of $0.5 million is included in the purchase price allocation above. The inventory step-up was calculated based on the net realizable value, on a part-by-part basis, of the inventory on the opening balance sheet. The amortization of the inventory step-up was recorded based on the consumption of those parts and was fully recognized The Company assumed gross accounts receivable of $1.4 million. Based on Smarteq’s bad debt experience and a review of the receivables, the Company does not anticipate an issue with collectability. The Company assumed liabilities in the acquisition which primarily consist of accounts payable, accrued employee compensation and certain operating liabilities. The fair value of the liabilities assumed are valued at their cash settlement value. As part of the acquisition of Smarteq on April 30, 2021, the Company assumed an office lease. The office in Kista, Sweden has 4,080 square feet used for engineering, sales, and administration and the lease term is through July 31, 2023. On the acquisition date, the Company recorded $0.2 million for each of the right-of-use assets and the lease liabilities. The Company assumed Smarteq France’s five-year The Company recorded net deferred tax assets of $2.4 million, primarily relating to deferred tax assets for net operating losses. The Company also booked a deferred tax asset for inventory reserves and deferred tax liabilities related to intangible asset amortization that is not deductible for income taxes. The Company booked a full valuation allowance against the net deferred tax assets. While the Company expects book and tax profits in 2022 and future periods, Smarteq has recorded a three-year cumulative tax loss. Based on this objective evidence and uncertainty associated with the COVID-19 pandemic, the Company recorded a full valuation allowance on the opening balance sheet. Goodwill recorded in connection with the acquisition was $3.2 million. The Company did not deduct any of the acquired goodwill for tax purposes. The Company recorded $0.3 million of transaction costs in general and administrative expenses in the statement of operations. The transaction costs were not deductible for income tax purposes. Supplemental pro forma financial information The following unaudited pro forma financial information presents the combined results of operations for each of the periods presented as if the Smarteq acquisition had occurred as of January 1, 2021: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Net Revenue - pro forma combined $ 24,976 $ 22,558 $ 47,518 $ 42,106 Net Income (Loss) - pro forma combined 411 170 (1,067 ) (651 ) Weighted Average Shares: Basic 18,157 18,241 18,065 18,158 Diluted 18,157 18,241 18,065 18,158 Net Income (Loss) per Share: Basic $ 0.02 $ 0.01 $ (0.06 ) $ (0.04 ) Diluted $ 0.02 $ 0.01 $ (0.06 ) $ (0.04 ) The following adjustments were included in the unaudited pro forma combined net revenues: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Net Revenue $ 24,976 $ 21,681 $ 47,518 $ 39,388 Add: Net Revenue - acquired business 0 877 0 2,718 Net Revenue - pro forma combined $ 24,976 $ 22,558 $ 47,518 $ 42,106 The following adjustments were included in the unaudited pro forma combined net income (loss): Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Net Income (Loss) $ 411 $ (169 ) $ (1,153 ) $ (831 ) Add: Results of operations of acquired business 0 $ 88 0 183 Less: pro forma adjustments Amortization of intangibles 0 (31 ) 0 (134 ) Inventory fair value adjustments 0 168 0 (159 ) Acquisition related expenses 0 121 86 304 Interest income 0 (7 ) 0 (14 ) Net Income (Loss) - pro forma combined $ 411 $ 170 $ (1,067 ) $ (651 ) The unaudited pro forma financial information has been adjusted to reflect the amortization expense for acquired intangibles, removal of historical intangible asset amortization and recognition of expense associated with the step-up of inventory. The pro forma data is presented for illustrative purposes only, and the historical results of Smarteq are based on its books and records prior to the acquisition and was not necessarily indicative of the consolidated results of operations of the combined business had the acquisition actually occurred as of January 1, 2021. In addition, future results may vary significantly from the pro forma results reflected herein and should not be relied upon as an indication of the results of future operations of the combined business. The unaudited pro forma financial information does not reflect any operating efficiencies and cost savings that may be realized from the integration of the acquired entity.

Cash, Cash Equivalents and Inve

Cash, Cash Equivalents and Investments	6 Months Ended
	Jun. 30, 2022
Cash And Cash Equivalents [Abstract]
Cash, Cash Equivalents and Investments	5. Cash, Cash Equivalents and Investments The Company’s cash, cash equivalents, and investments consisted of the following: June 30, December 31, 2022 2021 Cash $ 4,570 $ 6,789 Cash equivalents 1,227 1,403 Short-term investments 22,276 22,562 Long-term investments 250 0 Total $ 28,323 $ 30,754 Cash and Cash Equivalents At June 30, 2022 and December 31, 2021, cash and cash equivalents included bank balances and investments with original maturities of less than 90 days The cash in foreign accounts was as follows: June 30, December 31, 2022 2021 China $ 2,431 $ 2,801 Europe 1,171 1,108 Total $ 3,602 $ 3,909 As of June 30, 2022, the Company has no intention of repatriating the cash in its foreign bank accounts. If the Company decides to repatriate the cash in the foreign bank accounts, it may have trouble doing so in a timely manner. The Company may also be exposed to foreign currency fluctuations and taxes if it repatriates these funds. Investments At June 30, 2022 and December 31, 2021, the Company’s investments consisted of corporate bonds with ratings at the purchase date of A or higher, mutual funds and certificates of deposit. The investments at June 30, 2022 and December 31, 2021 were classified as held-to-maturity. The bonds, mutual funds and certificates of deposit classified as short-term investments have original maturities greater than 90 days and mature within one year. The bonds and certificates of deposit classified as long-term investments have maturities greater than one year but less than two years. The Company’s bond investments are recorded at the purchase price and carried at amortized cost. Under ASU 2016-13, the Company classifies its held-to-maturity investment portfolio by the investment type and further classifies the corporate bonds by the bond ratings. For estimating potential credit losses, the Company considers historical loss data and bond rating, as well as current and future economic conditions. Cash equivalents and investments were as follows at June 30 June 30, 2022 December 31, 2021 Level 1 Level 2 Total Level 1 Level 2 Total Cash equivalents: Money market funds $ 1,227 $ 0 $ 1,227 $ 1,403 $ 0 $ 1,403 Total cash equivalents $ 1,227 $ 0 $ 1,227 $ 1,403 $ 0 $ 1,403 Short-term investments: Corporate bonds $ 0 $ 19,776 $ 19,776 $ 0 $ 19,659 $ 19,659 Mutual funds 750 0 750 0 0 0 Certificates of deposit 1,750 0 1,750 2,903 0 2,903 Total short-term investments $ 2,500 $ 19,776 $ 22,276 $ 2,903 $ 19,659 $ 22,562 Long-term investments: Corporate bonds $ 0 $ 250 $ 250 $ 0 $ 0 $ 0 Total long-term investments $ 0 $ 250 $ 250 $ 0 $ 0 $ 0 Cash equivalents and investments - book value $ 3,727 $ 20,026 $ 23,753 $ 4,306 $ 19,659 $ 23,965 Unrealized gains (losses) $ 0 $ (4 ) $ (4 ) $ 1 $ (2 ) $ (1 ) Cash equivalents and investments - fair value $ 3,727 $ 20,022 $ 23,749 $ 4,307 $ 19,657 $ 23,964 The Company categorizes its financial instruments within a fair value hierarchy according to accounting guidance for fair value. The fair value hierarchy is described under the Fair Value of Financial Instruments in Note 2. For the Level 1 investments, the Company uses fair value estimates based on quoted prices in active markets for identical assets or liabilities. For the Level 2 investments, the Company uses quoted prices of similar assets in active markets. The fair values in the table above reflect net unrealizable losses of $4 at June 30, 2022, and net unrealized losses of $1 at December 31, 2021.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2022
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	6. Goodwill and Intangible Assets Goodwill The change in the carrying amount of goodwill during the six months ended June 30, 2022 is as follows: Amount Balance at December 31, 2021 $ 6,334 Foreign currency translation (348 ) Balance at June 30, 2022 $ 5,986 The Company performs an annual impairment test of goodwill as of the end of the first month of the fourth fiscal quarter (October 31), or at an interim date if an event occurs or if circumstances change that would indicate that an impairment loss may have been incurred. In performing the annual impairment test, the Company may consider qualitative factors that would indicate possible impairment. A quantitative fair value assessment is also performed at the reporting unit level. If the fair value exceeds the carrying value, then goodwill is not impaired, and no further testing is performed. If the carrying value exceeds the fair value, the implied fair value of goodwill is then compared against the carrying value of goodwill to determine the amount of impairment. In addition to the annual impairment test, the Company is required to regularly assess whether a triggering event has occurred which would require interim impairment testing. The Company considered the current and expected future economic and market conditions surrounding the COVID-19 pandemic and its impact on each of the reporting units. Further, the Company assessed the current market capitalization and financial forecasts. There were no triggering events during the six months ended June 30, 2022 or June 30, 2021. The Company will continue to monitor goodwill for impairment going forward. Intangible Assets The Company amortized intangible assets with finite lives on a straight-line basis over the estimated useful lives, which ranged from one to five years. The summary of amortization expense in the condensed consolidated statement of operations is as follows: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Cost of revenues $ 19 $ 15 $ 39 $ 15 Operating expenses 67 55 138 55 Total $ 86 $ 70 $ 177 $ 70 The summary of other intangible assets, net is as follows: June 30, 2022 December 31, 2021 Accumulated Net Book Accumulated Net Book Cost Amortization Value Cost Amortization Value Customer contracts and relationships $ 17,525 $ 17,031 $ 494 $ 17,609 $ 16,978 $ 631 Patents and technology 10,002 9,727 275 10,049 9,698 351 Trademarks and trade names 1,494 1,094 400 1,563 1,051 512 Other intangible assets 97 35 62 110 25 85 Total $ 29,118 $ 27,887 $ 1,231 $ 29,331 $ 27,752 $ 1,579 In April 2021, the Company recorded $2.0 million of finite-lived intangible assets for the acquisition of Smarteq, and during the six months ended June 30, 2022, the Company recorded amortization expense of $0.2 million and foreign currency translation adjustment of $ million . Prior to the acquisition of Smarteq in April 2021, the Company’s intangible assets were fully amortized as of February 2020. D uring the three months ended June 30, 2021, the Company recorded amortization expense of $ 0.1 million. The assigned lives and weighted average amortization periods by intangible asset category are summarized below: Intangible Assets Assigned Life Weighted Average Amortization Period Customer contracts and relationships 5 years 5.0 Patents and technology 5 years 5.0 Trademarks and trade names 5 years 5.0 Other intangible assets .5 to 5 years 3.6 The future amortization expenses is as follows: Fiscal Year Amount 2022 (remaining six months) $ 165 2023 331 2024 318 2025 312 2026 105 Thereafter 0 Total $ 1,231

Balance Sheet Information

Balance Sheet Information	6 Months Ended
	Jun. 30, 2022
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Balance Sheet Information	7. Balance Sheet Information Accounts Receivable Accounts receivable are recorded at invoiced amounts with standard net terms that range between 30 and 90 days. The Company extends credit to its customers based on an evaluation of a customer’s financial condition and collateral is generally not required. The Company records reserves for credit losses and credit allowances that reduce the value of accounts receivable to fair value. The allowances for accounts receivable consisted of the following: June 30, 2022 December 31, 2021 Credit loss provision $ 35 $ 26 Credit allowances 44 38 Total allowances $ 79 $ 64 The Company is exposed to credit losses primarily through the sale of products. The Company’s methodology for expected losses on accounts receivable uses historical collection experience, current and future economic market conditions, and a review of the current status of customers’ trade accounts receivable. Due to the short-term nature of accounts receivable, the estimate of the amount of accounts receivable that may not be collected is based on aging of the account receivable balances and the financial condition of customers. Additionally, specific allowance amounts are established to record the appropriate provision for customers that have a higher probability of default. The Company’s monitoring activities include timely account reconciliation, dispute resolution, payment confirmation, consideration of customers' financial condition and macroeconomic conditions. Balances are written off when determined to be uncollectible. The Company’s allowance for credit losses was $35 at June 30, 2022 and $26 at December 31, 2021. The following table summarizes the allowance for credit losses activity during the six months ended June 30, 2022: Balance at December 31, 2021 $ 26 Current period benefit for credit losses 9 Balance at June 30, 2022 $ 35 Inventories Inventories are stated at the lower of cost or net realizable value and include material, labor and overhead costs using the first-in, first-out method of costing. Inventories as of June 30, 2022 and December 31, 2021 were composed of raw materials, work-in-process and finished goods. The Company had consigned inventory with customers of $0.4 million at June 30, 2022 and December 31, 2021. The Company records allowances to reduce the value of inventory to the lower of cost or net realizable value, including allowances for excess and obsolete inventory. Reserves for excess inventory are calculated based on an estimate of inventory in excess of normal and planned usage. Obsolete reserves are based on identification of inventory where the carrying value is above net realizable value. The allowance for inventory losses was $3.3 million at June 30, 2022 and $4.1 million at December 31, 2021. Inventories, net consisted of the following: June 30, 2022 December 31, 2021 Raw materials $ 6,981 $ 6,171 Work-in-process 962 690 Finished goods 6,246 6,830 Inventories, net $ 14,189 $ 13,691 Prepaid Expenses and Other Assets Prepaid assets are stated at cost and are amortized over the useful lives (up to one year) of the assets. Property and Equipment Property and equipment are stated at cost and are depreciated using the straight-line method over the estimated useful lives of the assets. The Company depreciates computer equipment and software licenses over three to five years, office equipment, manufacturing and test equipment, and motor vehicles over five years, furniture and fixtures over seven years, and buildings over thirty years. Leasehold improvements are amortized over the shorter of the corresponding lease term or useful life. Depreciation expense and gains and losses on the disposal of property and equipment are included in cost of revenues and operating expenses in the condensed consolidated statements of operations. Maintenance and repairs are expensed as incurred. Property and equipment consisted of the following: June 30, 2022 December 31, 2021 Building $ 6,922 $ 6,892 Computers and office equipment 10,342 10,604 Manufacturing and test equipment 15,463 16,305 Furniture and fixtures 1,455 1,455 Leasehold improvements 1,965 3,021 Motor vehicles 20 20 Total property and equipment 36,167 38,297 Less: Accumulated depreciation and amortization (27,153 ) (28,118 ) Land 1,770 1,770 Property and equipment, net $ 10,784 $ 11,949 Depreciation and amortization expense was approximately $0.8 million for each of the three months ended June 30, 2022 and 2021. Depreciation and amortization expense was approximately $1.6 million and $1.5 million for the six months ended June 30, 2022 and 2021, respectively. Amortization for finance leases is included in depreciation and amortization expense. See Note 11 for information related to finance leases. Liabilities Accrued liabilities consisted of the following: June 30, 2022 December 31, 2021 Accrued receipts $ 3,340 $ 4,302 Payroll and other employee benefits 2,001 2,266 Paid time off 1,484 1,284 Right of Use Assets 575 537 Deferred revenues 410 538 Customer refunds for estimated returns 310 248 Professional fees and contractors 293 233 Warranties 272 257 Income and sales taxes 278 415 Employee stock purchase plan 235 253 Real estate taxes 156 156 Restructuring 40 368 Other 473 260 Total $ 9,867 $ 11,117 Long-term liabilities consisted of the following: June 30, 2022 December 31, 2021 Operating leases $ 3,374 $ 3,600 Finance leases 69 92 Deferred revenue 190 181 Other 99 126 Total $ 3,732 $ 3,999

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	8. Stock-Based Compensation The condensed consolidated statements of operations include $1.1 million and $1.0 million of stock compensation expense for the three months ended June 30, 2022 and 2021, respectively. The condensed consolidated statements of operations include $1.9 million and $1.7 million of stock compensation expense for the six months ended June 30, 2022 and 2021, respectively. T The stock-based compensation expense by type is as follows: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Service-based awards $ 383 $ 640 $ 703 $ 1,095 Performance-based awards (short-term incentive plan) 263 138 343 196 Performance-based awards (long-term incentive plan) 364 194 671 233 Employee stock purchase plan 76 67 143 133 Total $ 1,086 $ 1,039 $ 1,860 $ 1,657 Total stock-based compensation is reflected in the condensed consolidated statements of operations as follows: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Cost of revenues $ 31 $ 65 $ 96 $ 134 Research and development 172 140 308 282 Sales and marketing 255 226 452 386 General and administrative 628 608 1,004 855 Total $ 1,086 $ 1,039 $ 1,860 $ 1,657 The following table presents a summary of the remaining unrecognized share-based compensation expense related to outstanding share-based awards as of June 30, 2022: Award Type Remaining Unrecognized Compensation Expense Weighted Average Life (Years) Service-based awards $ 2,378 1.4 Performance-based awards $ 2,490 1.9 Service-Based Awards Restricted Stock The Company grants both service-based and performance-based stock awards to employees pursuant to the PCTEL, Inc. 2019 Stock Incentive Plan. When service-based restricted stock is granted, the Company records deferred stock compensation within additional paid-in capital, representing the fair value of the common stock on the date the restricted shares are granted. The Company records stock compensation expense on a straight-line basis over the vesting period of the applicable service-based restricted shares. During the second quarter of 2022, the Company awarded executives and key managers long-term incentives comprised one-third of service-based restricted stock and two-thirds of performance-based restricted stock. During the second quarter of 2022, the Company awarded executives and key managers long-term incentives comprised one-third of service-based restricted stock and two-thirds of performance-based restricted stock. The Company awarded service-based restricted stock to all other participating employees. The following table summarizes service-based restricted stock activity for the six months ended June 30, 2022: Shares Weighted Average Fair Value Unvested Restricted Stock Awards - December 31, 2021 326,336 $ 7.76 Shares awarded 233,744 4.66 Shares vested (166,473 ) 7.30 Shares cancelled (2,135 ) 5.70 Unvested Restricted Stock Awards - June 30, 2022 391,472 $ 6.12 The intrinsic value of service-based restricted shares that vested during the six months ended June 30, 2022 and 2021 was $0.8 million and $2.2 million, respectively. Restricted Stock Units The Company grants service-based restricted stock units as employee incentives. Restricted stock units are primarily granted to foreign employees for long-term incentive purposes. Employee restricted stock units are service-based awards and are amortized over the vesting period. At the vesting date, these units are converted to shares of common stock. The Company records expense on a straight-line basis for restricted stock units. The following table summarizes the restricted stock unit activity during the six months ended June 30, 2022: Shares Weighted Average Fair Value Unvested Restricted Stock Units - December 31, 2021 21,437 $ 7.23 Units awarded 26,667 4.40 Units vested/Shares awarded (4,501 ) 7.33 Units cancelled (2,000 ) 6.98 Unvested Restricted Stock Units - June 30, 2022 41,603 $ 5.42 The intrinsic value of service-based restricted stock units that vested and were issued as shares during the six months ended June 30, 2022 and 2021 was $21 and $42, respectively. Stock Options The Company may grant employees stock options to purchase common stock. The Company issues stock options with exercise prices no less than the fair value of the Company’s stock on the grant date. Employee stock options are subject to installment vesting. Stock options may be exercised at any time prior to their expiration date or within 180 days of termination of employment, or such shorter time as may be provided in the related stock option agreement. The stock options outstanding at June 30, 2022 have a seven-year The following table summarizes information about stock options outstanding under all stock option plans at June 30, 2022: Options Outstanding Options Exercisable Range of Exercise Prices Number Outstanding Weighted Average Contractual Life (Years) Intrinsic Value Weighted- Average Exercise Price Number Exercisable Weighted Average Contractual Life (Years) Intrinsic Value Weighted Average Exercise Price $ 5.06 - $ 6.98 4,000 1.92 $ 0 $ 6.02 4,000 1.92 $ 0 $ 6.02 The intrinsic value is based on the share price of $4.09 at June 30, 2022. For outstanding employee stock options, the Company calculated the fair value of each stock option on the date of grant using the Black-Scholes option-pricing model. Because the Company’s employee stock options have characteristics significantly different from those of traded options, and because changes in the subjective input assumptions can materially affect the fair value estimate, the existing models may not necessarily provide a reliable single measure of the fair value of the employee stock options. In addition, option valuation models require the input of highly subjective assumptions including the expected stock price volatility and expected option life. The dividend yield rate is calculated by dividing the Company’s annual dividend by the closing price on the grant date. The risk-free interest rate is based on the U.S. Treasury yields with a remaining term that approximates the expected life of the options granted. The expected volatility is based on a five-year Performance-Based Equity Awards Short-Term Incentive Plan The Company granted short-term inventive awards to executives, key managers, and non-sales employees under the Company’s 2022 Short-Term Incentive Plan (“STIP”) based on upon achievement of specifically identified corporate annual 2022 adjusted EBITDA and revenue goals. The 2022 STIP awards, like the 2021 STIP awards, will be paid 50% in cash and 50% in the Company’s stock. In the first quarter 2022, the Board of Directors exercised its discretion to approve bonus awards. The first quarter 2022 bonus was equal to those payable for achievement of the 2021 STIP adjusted EBITDA goal at the threshold level. No awards were received by 2021 STIP participants with respect to the revenue goal. These payments were made during the first quarter 2022, 50% in the Company’s common stock for a total of $0.3 million and 50% in cash for executives and key managers and 100% in cash for all other participants. Long-Term Incentive Plan The Company grants performance-based awards to executives and key managers to encourage sustainable growth, consistent earnings, and management retention. Based on the fair value of the shares on the grant date, the Company records stock compensation expense over the performance period based on the estimated achievement of the award. The following table summarizes the performance award activity: Awards at Target Weighted Average Fair Value Unvested Performance Awards - December 31, 2021 333,153 $ 8.44 Awards granted 269,618 4.84 Awards cancelled (18,800 ) 8.01 Unvested Performance Awards - June 30, 2022 583,971 $ 6.79 The Company granted performance awards under its long-term incentive plan to executives and key managers in February 2022 (“2022 LTIP”). The performance period for the 2022 LTIP is from January 1, 2022 through December 31, 2024. At target, the total fair market value of the award was $1.3 million based on the average share price of $4.84 on the grant date. On the award date, the aggregate number of shares that could be earned at target was 269,618 and the maximum number of aggregate shares that could be earned was 471,832. Under the 2022 LTIP and similar plans from 2021 and 2020, shares of the Company’s stock can be earned based on achievement of a three-year revenue growth target with a penalty if a certain Adjusted EBITDA level is not maintained. If the Company achieves less than the target growth over the performance period, the participant will receive fewer shares than the target award, determined on a straight-line basis. If the Company achieves greater than the target growth, the participant will receive more shares than the target award on an accelerated basis. Participants are required to be in service at the determination date of the award following the end of the performance period in order to receive the award. Shares earned will be fully vested shares. The Company records stock compensation expense over the performance period based on the Company’s estimate of the aggregate number of shares that will be earned under the incentive plan. The following table summarizes the active performance-based long-term incentive plans at June 30, 2022: Number of Shares Share Price That Could Be Earned: LTIP award on Grant Date Target Maximum Performance Period 2020 LTIP $ 8.70 135,889 237,806 January 1, 2020 through December 31, 2022 2021 LTIP $ 8.25 179,797 314,645 January 1, 2021 through December 31, 2023 2022 LTIP $ 4.84 268,285 469,499 January 1, 2022 through December 31, 2024 583,971 1,021,949 Employee Stock Purchase Plan (“ESPP”) The ESPP enables eligible employees to purchase common stock at the lower of 85% of the fair market value of the common stock on the first or last day of each offering period. Each offering period is approximately six months. Based on the 15% discount and the fair value of the option feature of the ESPP, it is considered compensatory. Compensation expense is calculated using the fair value of the employees’ purchase rights under the Black-Scholes model. The Company calculated the fair value of each employee stock purchase grant on the date of grant using the Black-Scholes option-pricing model using the following assumptions: Employee Stock Purchase Plan 2022 2021 Dividend yield 4.7 % 3.1 % Risk-free interest rate 1.7 % 0.1 % Expected volatility 48 % 48 % Expected life (in years) 0.5 0.5 The dividend yield rate was calculated by dividing the Company’s annual dividend by the closing price on the grant date. The risk-free interest rate was based on the U.S. Treasury yields with a remaining term that approximates the expected life of the options granted. The volatility was based on a five-year historical period of the Company’s stock price. The expected life was based on the offering period. Board of Director Equity Awards The Company grants equity awards to members of its Board of Directors as an annual retainer and for committee service. These awards are shares of the Company’s stock that vest one year after issuance. In addition, new directors receive a one-time grant that vests over three years. In May 2022, the Company issued 120,768 shares to directors for their annual retainer and committee services. The fair value of the service-based restricted shares for directors that vested during the six months ended June 30, 2022 was $47. The following table summarizes the director awards activity: Shares Weighted Average Fair Value Outstanding - December 31, 2021 11,534 $ 6.57 Shares awarded 120,768 4.02 Shares vested (11,534 ) 6.57 Outstanding - June 30, 2022 120,768 $ 4.02 Employee Withholding Taxes on Stock Awards For ease in administering the issuance of stock awards, the Company holds back shares of vested restricted stock awards, stock option exercises and short-term and long-term incentive plan stock awards for the value of the statutory withholding taxes. For everyone receiving a share award, the Company redeems the shares it computes as the value for the withholding tax and remits this amount to the appropriate tax authority. For withholding taxes related to stock awards, the Company paid $0.4 million and $0.8 million during the six months ended June 30, 2022 and 2021, respectively.

Benefit Plans

Benefit Plans	6 Months Ended
	Jun. 30, 2022
Compensation And Retirement Disclosure [Abstract]
Benefit Plans	9. Benefit Plans Employee Benefit Plans The Company’s 401(k) plan covers all U.S. employees beginning the first day of the month following the first month of their employment. Under this plan, employees may elect to contribute up to 15% of their current compensation to the 401(k) plan up to the statutorily prescribed annual limit. The Company matches employee contributions up to 4% and may also make discretionary contributions to the 401(k) plan. The Company also contributes to various retirement plans for foreign employees. The Company’s contributions to retirement plans during the three and six months ended June 30, 2022 and 2021, respectively, were as follows: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 PCTEL, Inc. 401(k) profit sharing plan - US employees $ 187 $ 184 $ 406 $ 356 Defined contribution plans - Foreign employees 62 119 135 206 Total $ 249 $ 303 $ 541 $ 562

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2022
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	10. Commitments and Contingencies Tianjin Manufacturing Restructuring Due to uncertainties with its Tianjin facility lease and to optimize the cost structure of the antenna product line and create flexibility in antenna manufacturing, the Company initiated a restructuring plan in 2019 to transition manufacturing from its Tianjin, China facility primarily to contract manufacturers in China. The Company substantially completed the transition in the first quarter 2022. For the six months ended June 30, 2022, the Company incurred restructuring expenses of $1.2 million, including $1.1 million for employee severance and benefits related to the separation of 78 employees and $0.1 million related to fixed assets and facilities. Severance costs were paid from the Company’s cash in its China bank accounts. W hen the transition was complete d in April 2022 , the Company vacated the Tianjin manufacturing facility and relocated a small team of employees associated with sourcing, quality, and local customer support in a new leased facility in Tianjin, China. See Note 11 for additional information on the Tianjin lease. Beijing Restructuring As a cost saving initiative, the Company separated 14 employees from its Beijing office in November 2021. The terminated positions were primarily related to antenna engineering and sales support. The Company incurred restructuring expenses of $0.8 million consisting of employee severance and related employee benefits and for professional fees associated with employee separations. The Company engaged four former Beijing employees through a third-party employment agency to provide sales and engineering support. In January 2022, the Company paid $0.4 million related to severance benefits accrued at December 31, 2021. The following table summarizes the restructuring activity during the six months ended June 30 June 30 Tianjin Manufacturing Beijing Total Balance at December 31, 2021 $ 0 $ 368 $ 368 Restructuring expense 1,252 0 1,252 Payments made (1,212 ) (368 ) (1,580 ) Balance at June 30, 2022 $ 40 $ 0 $ 40 The restructuring liability is recorded in accrued liabilities on the condensed consolidated balance sheet at June 30, 2022 and December 31, 2021. Warranty Reserve and Sales Returns The Company allows its major distributors and certain other customers to return unused product under specified terms and conditions. The Company accrues for product returns based on historical sales and return trends. The refund liability related to estimated sales returns was $0.3 million and $0.2 million at June 30, 2022 and December 31, 2021, respectively, and is included within accrued liabilities on the accompanying condensed consolidated balance sheets. The Company offers repair and replacement warranties of up to five years for certain antenna products and test & measurement products. The Company’s warranty reserve is based on historical sales and costs of repair and replacement trends. The warranty reserve was $0.3 million at June 30, 2022 and 2021, respectively, and is included in accrued liabilities in the accompanying condensed consolidated balance sheets. The following table summarizes the warranty activity during the six months ended June 30, 2022 and 2021: Six Months Ended June 30, 2022 2021 Beginning balance $ 257 $ 285 Provisions for warranties 41 57 Consumption of reserves (26 ) (58 ) Ending balance $ 272 $ 284

Leases

Leases	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Leases	11. Leases The Company has operating leases for facilities and finance leases for office equipment. Leases with an initial term of 12 months or less are not recorded in the balance sheet. The Company determines if an arrangement is a lease at inception of a contract. Right of Use (“ROU”) assets represent the Company's right to use an underlying asset during the lease term and lease liabilities represent the Company's obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the lease commencement date based on the net present value of fixed lease payments over the lease term. The Company's lease term is deemed to include options to extend or terminate the lease when it is reasonably certain that it will exercise that option. ROU assets also include any advance lease payments made and exclude lease incentives. As most of the Company's operating leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments on a collateralized basis. Finance lease agreements generally include an interest rate that is used to determine the present value of future lease payments. Operating fixed lease expense and finance lease depreciation expense are recognized on a straight-line basis over the lease term. The Company's lease cost for the three and six months ended June 30, 2022 and 2021, respectively, included the following components: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Operating lease costs $ 130 $ 115 $ 258 $ 212 Short-term lease costs 23 41 50 82 Variable lease costs (2 ) 2 2 4 Amortization of finance lease assets 16 21 35 35 Interest on finance lease liabilities 1 2 3 4 Total lease cost $ 168 $ 181 $ 348 $ 337 The table below summarizes the Company's scheduled future minimum lease payments under operating and finance leases recorded on the balance sheet as of June 30, 2022: Year Operating Leases Finance Leases 2022 (remaining six months) $ 317 $ 27 2023 674 44 2024 588 33 2025 501 15 2026 494 5 Thereafter 2,180 0 Total minimum payments required 4,754 124 Less: amount representing interest 852 8 Present value of net minimum lease payments 3,902 116 Less: current maturities of lease obligations (528 ) (47 ) Long-term lease obligations $ 3,374 $ 69 The weighted average remaining lease terms and discount rates for all the Company’s operating and finance leases were as follows as of June 30, 2022: June 30, 2022 Weighted-average remaining lease term - finance leases 2.8 years Weighted-average remaining lease term - operating leases 7.9 years Weighted-average discount rate - finance leases 3.9% Weighted-average discount rate - operating leases 5.0% The table below presents supplemental cash flow information related to leases during the three and six months ended June 30, 2022 and 2021, respectively: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 186 $ 153 $ 386 $ 253 Operating cash flows for finance leases $ 1 $ 2 $ 3 $ 4 Financing cash flows for finance leases $ 18 $ 19 $ 37 $ 35 The following table summarizes the classification of ROU assets and lease liabilities as of June 30, 2022 and December 31, 2021: Leases Consolidated Balance Sheet Classification June 30, 2022 December 31, 2021 Assets: Operating right-of-use assets Other noncurrent assets $ 2,190 $ 2,289 Finance right-of-use assets Other noncurrent assets 112 148 Total leased assets $ 2,302 $ 2,437 Liabilities: Current Operating lease liabilities Accrued liabilities $ 528 $ 475 Finance lease liabilities Accrued liabilities 47 62 Noncurrent Operating lease liabilities Long-term liabilities 3,374 3,600 Finance lease liabilities Long-term liabilities 69 92 Total lease liabilities $ 4,018 $ 4,229 The Company completed the transition of antenna manufacturing from its Tianjin, China facility to contract manufacturers during the first quarter of 2022. In April 2022, the Company vacated the manufacturing facility and moved a small team of employees associated with sourcing, quality, and local customer support to a new leased facility in Tianjin, China. The Company entered into a two-year As a cost saving initiative, the Company separated all 14 employees from its Beijing office in November 2021 and the Company closed this office in the first quarter of 2022. In April 2022, the Company entered into a two-year As part of the acquisition of Smarteq on April 30, 2021, the Company assumed an office lease and two automotive leases. The office in Kista, Sweden has 4,080 square feet used for engineering, sales, and administration with a lease term ending July 31, 2023. On the acquisition date, the Company recorded $0.2 million for each of the ROU assets and the lease liabilities.

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2022
Subordinated Borrowings [Abstract]
Borrowings	12. Borrowings As part of the Smarteq acquisition, the Company assumed a five-year May 2026.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes The Company recorded income tax expense of $39 and $12 for the six months ended June 30, 2022 and 2021, respectively. The expense recorded for the six months ended June 30, 2022 and 2021 was lower than the statutory rate of 21% because the Company has a full valuation allowance on its deferred tax assets. The Company’s valuation allowance is due to the uncertainty regarding the utilization of the deferred tax assets. The Company had deferred tax assets net of deferred tax liabilities of $15.0 million at June 30, 2022 and $15.3 million at December 31, 2021. By jurisdiction, $11.9 million was associated with the US, $1.1 million was associated with China, and $2.0 million was associated with Sweden. The Company’s gross deferred tax assets consist of federal and state net operating losses (“NOLs”), credits, and timing differences. As part of the acquisition of Smarteq, the recorded deferred tax assets of $2.4 million associated with NOLs, inventory reserves, and recorded tax liabilities associated with acquired intangible assets. Because of the objective evidence of cumulative three-year losses at the acquisition date and uncertainty associated with the COVID-19 pandemic, the Company recorded a full valuation allowance on the deferred tax assets. On a regular basis, the Company evaluates the recoverability of deferred tax assets and the need for a valuation allowance. Such evaluations involve the application of significant judgment. The Company considers multiple factors in its evaluation of the need for a valuation allowance. The Company’s federal NOLs generated in 2018 and future periods will not expire, and the Company’s NOLs and credits generated as of December 31, 2017 have a finite life primarily based on the 20-year carry forward of federal net operating losses. The timing differences have a ratable reversal pattern over 12 years . The Company had a full valuation allowance on its net deferred tax assets in each of its jurisdictions at June 30, 2022 and December 31, 2021. For the U.S tax jurisdiction, the Company recorded pretax book losses for the six months ended June, 30, 2022. In 2021, the Company recorded pretax book income but generated a tax loss and its earnings were below its projections. While the Company has recorded pretax book income for the prior three years and believes its financial outlook remains positive, it incurred losses for the first half of 2022 and did not meet expectations in 2021 for revenues or earnings. The Company’s performance versus its projections in both of the prior two years are considered significant negative evidence that is difficult to overcome on a “more likely than not” standard through objectively verifiable data. While the Company believes its financial outlook remains positive, under the accounting standards, objective verifiable evidence will have greater weight than subjective evidence such as the Company’s projections for future growth. The Company maintained a full valuation allowance on its deferred tax assets because of difficulties with forecasting financial results historically, and due to the uncertainties associated with the COVID-19 pandemic. Until an appropriate level of profitability is attained, the Company expects to maintain a full valuation allowance on its net deferred tax assets. Any U.S. or foreign tax benefits or tax expense recorded on its consolidated statements of operations will be offset with a corresponding valuation allowance until such time that the Company changes its determination related to the realization of deferred tax assets. In the event that the Company changes its determination as to the amount of deferred tax assets that can be realized, the Company will adjust its valuation allowance with a corresponding impact to the provision for income taxes in the period in which such a determination is made. The analysis that the Company prepared to determine the valuation allowance required significant judgment and assumptions regarding future market conditions as well as forecasts for profits, taxable income, and taxable income by jurisdiction. Due to the sensitivity of the analysis, changes to the assumptions in subsequent periods could have a material effect on the valuation allowance. The Company files a consolidated federal income tax return, income tax returns with various states, and foreign income tax returns in various foreign jurisdictions. The Company’s U.S. federal tax returns remain subject to examination for 2018 and subsequent periods. The Company’s U.S. state tax returns remain subject to examination for 2017 and subsequent periods. The Company’s foreign tax returns remain subject to examination for 2011 and subsequent periods. The Company’s gross unrecognized tax benefit was $0.8 million at June 30, 2022 and December 31, 2021. On March 27, 2020, the “Coronavirus Aid, Relief and Economic Security Act” (CARES Act) was signed into law. The CARES Act includes provisions relating to refundable payroll tax credits, deferment of the employer portion of certain payroll taxes, net operating loss carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations and technical corrections to tax depreciation methods for qualified improvement property. Under the CARES Act, the Company deferred the employer portion of social security taxes and applied for a refund of its Alternative Minimum Tax credit. As of June 30, 2022, the Company had deferred $0.2 million of payroll taxes which will be paid on December 31, 2022. The amount to be paid on December 31, 2022 is not deductible for 2021 income tax purposes.

Product Line and Geographic Inf

Product Line and Geographic Information	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Product Line and Geographic Information	14. Product Line and Geographic Information Product Line Information: The following tables are the product line revenues and gross profits for the three and six months ended June 30, 2022 and 2021: Three Months Ended June 30, 2022 Antennas & Industrial IoT Devices Test & Measurement Products Corporate Total Revenues $ 17,555 $ 7,431 $ (10 ) $ 24,976 Gross Profit $ 5,626 $ 5,759 $ 42 $ 11,427 Gross Profit % 32.0 % 77.5 % NA 45.8 % Six Months Ended June 30, 2022 Antennas & Industrial IoT Devices Test & Measurement Products Corporate Total Revenues $ 34,657 $ 13,014 $ (153 ) $ 47,518 Gross Profit $ 10,873 $ 9,921 $ (34 ) $ 20,760 Gross Profit % 31.4 % 76.2 % NA 43.7 % Three Months Ended June 30, 2021 Antennas & Industrial IoT Devices Test & Measurement Products Corporate Total Revenues $ 15,562 $ 6,414 $ (295 ) $ 21,681 Gross Profit $ 5,175 $ 4,834 $ (67 ) $ 9,942 Gross Profit % 33.3 % 75.4 % NA 45.9 % Six Months Ended June 30, 2021 Antennas & Industrial IoT Devices Test & Measurement Products Corporate Total Revenues $ 27,285 $ 12,619 $ (516 ) $ 39,388 Gross Profit $ 8,922 $ 9,422 $ (64 ) $ 18,280 Gross Profit % 32.7 % 74.7 % NA 46.4 % Geographic Information: The Company’s revenue from customers by geographic location, as a percent of total revenues for the three and six months ended June 30, 2022 and 2021, is as follows: Three Months Ended June 30, Six Months Ended June 30, Region 2022 2021 2022 2021 Europe, Middle East & Africa 17% 23% 22% 23% Asia Pacific 5% 7% 6% 7% Other Americas 3% 4% 2% 4% Total Foreign sales 25% 34% 30% 34% Customer Concentration: The following table represents the customers that accounted for 10% or more of revenues during the three and six months ended June 30, 2022 and 2021: Three Months Ended June 30, Six Months Ended June 30, Revenues 2022 2021 2022 2021 Customer C 17% 9% 14% 10% Customer A 12% 3% 7% 5% The following table represents the customers that accounted for 10% or more of total trade accounts receivable: Trade Accounts Receivable June 30, 2022 December 31, 2021 Customer B 13% 4% Customer C 10% 9%

Revenue from Contracts with Cus

Revenue from Contracts with Customers	6 Months Ended
	Jun. 30, 2022
Revenue From Contract With Customer [Abstract]
Revenue from Contracts with Customers	15. Revenue from Contracts with Customers Under Topic 606, a contract with a customer is an agreement that both parties have approved, that creates enforceable rights and obligations, has commercial substance, and specified payment terms, and for which collectability is probable. Once the Company has entered into a contract, it is evaluated to identify performance obligations. For each performance obligation, revenue is recognized as control of promised goods or services transfers to the customer in an amount that reflects the consideration the Company expects to receive in exchange for those goods or services. The amount of revenue recognized takes into account variable consideration, such as returns and volume rebates. A majority of the Company’s revenue is short cycle in nature with shipments within one year from order. The Company's payment terms generally range between 30 to 90 days. All of the Company’s revenue relates to contracts with customers. The Company’s accounting contracts are from purchase orders or purchase orders combined with purchase agreements. The majority of the Company’s revenue is recognized on a “point-in-time” basis and a nominal amount of revenue is recognized “over time”. For the sale of antenna products and test & measurement products, the Company satisfies its performance obligations generally at the time of shipment or upon delivery based on the contractual terms with its customers. For products shipped on consignment, the Company recognizes revenue upon delivery from the consignment location. For its test & measurement software tools, the Company has a performance obligation to provide software maintenance and support for one year. The Company recognizes revenues for the maintenance and support over this period. The Company considers shipping and handling performed by the Company as fulfillment activities. Amounts billed for shipping and handling are included in revenues, while costs incurred for shipping and handling are included in cost of revenues. The Company excludes taxes from the transaction price. Cost of contracts include sales commissions. The Company expenses the cost of contracts when incurred because the amortization period is one year or less. The Company allows its major distributors and certain other customers to return unused product under specified terms and conditions. The Company estimates product returns based on historical sales and return trends and records a corresponding refund liability. The refund liability was $0.3 million and $0.2 million at June 30, 2022 and December 31, 2021, respectively and is included within accrued liabilities in the accompanying condensed consolidated balance sheets. The Company records an asset based on historical experience for the amount of product it expects to return to inventory as a result of customer returns, which is recorded in inventories in the accompanying condensed consolidated balance sheets. The product return asset was $0.1 million at June 30, 2022 and December 31, 2021. There were no contract assets at June 30, 2022 or December 31, 2021. The Company records contract liabilities for deferred revenue and customer prepayments. Contract liabilities are recorded in accrued liabilities in the accompanying condensed consolidated balance sheets. The contract liability was $1.0 million and $0.9 million at June 30, 2022 and December 31, 2021, respectively. The Company recognized revenue of $0.6 million and $0.5 million during the six months ended June 30, 2022 and 2021, respectively, related to contract liabilities that existed at the beginning of the period.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2022
Subsequent Events [Abstract]
Subsequent Events	16. Subsequent Events The Company evaluates subsequent events occurring between the most recent balance sheet date and the date that the financial statements are available to be issued in order to determine whether the subsequent events are to be recorded and/or disclosed in the Company’s financial statements and footnotes. The financial statements are considered to be available to be issued at the time that they are filed with the SEC. There were no subsequent events or transactions that required recognition or disclosure in the unaudited interim condensed consolidated financial statements.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2022
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Nature of Operations	Nature of Operations PCTEL, Inc. (“PCTEL” or “the Company”) was incorporated in California in 1994 and reincorporated in Delaware in 1998. The Company is a leading global provider of wireless technology, including purpose-built Industrial IoT devices, antenna systems, and test and measurement solutions. PCTEL solves complex wireless challenges to help organizations stay connected, transform, and grow. and it has expertise in RF, digital and mechanical engineering. The Company has two businesses (antennas & Industrial IoT devices and test & measurement products). These businesses are supported by the Company’s talent and expertise in RF, digital, and mechanical engineering. The Company’s principal executive offices are located at 471 Brighton Drive, Bloomingdale, Illinois 60108. The telephone number at that address is (630) 372-6800 and the website is www.pctel.com. Additional information about the Company can be obtained on the Company’s website; however, the information within, or that can be accessed through, the Company’s website is not part of this Quarterly Report on Form 10-Q.
Basis of Consolidation	Basis of Consolidation The unaudited interim condensed consolidated financial statements of the Company include the condensed consolidated balance sheets for the period ended June 30, 2022 and December 31, 2021, the condensed consolidated statement of cash flows for the six months ended June 30, 2022 and 2021, and the condensed consolidated statements of operations, condensed consolidated statements of comprehensive (loss) income, and the condensed consolidated statements of stockholders’ equity for the three and six months ended June 30, 2022 and 2021, respectively. The interim condensed consolidated financial statements are unaudited and reflect all adjustments of a normal recurring nature that are, in the opinion of management, necessary for a fair presentation of the interim period financial statements. The condensed consolidated balance sheet as of December 31, 2021 is derived from the audited financial statements as of December 31, 2021. The unaudited interim condensed consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. The significant accounting policies followed by the Company are set forth in the 2021 Form 10-K. There were no material changes in the Company’s significant accounting policies during the three and six months ended June 30, 2022. In addition, the Company reaffirms the use of estimates in the preparation of the financial statements as set forth in the 2021 Form 10-K. These unaudited interim condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the 2021 Form 10-K. The results of operations for the period ended June 30, 2022 may not be indicative of the results for the period ending December 31, 2022.
Foreign Operations	Foreign Operations Cross-border transactions, both with external parties and in our internal operations, result in exposure to foreign exchange rate fluctuations. We are exposed to currency risk by having foreign locations with suppliers and employees located outside the U.S. Fluctuations could have an adverse effect on our results of operations and cash flows. We manage certain operating activities at the local level with revenues, costs, assets, and liabilities generally being denominated in local currencies. However, our results of operations and assets and liabilities are reported in U.S. dollars and thus will fluctuate with changes in exchange rates between such local currencies and the U.S. dollar. Gains and losses resulting from transactions originally in foreign currencies and then translated into U.S. dollars are included in the condensed consolidated statements of operations. For the six months ended June 30 , 202 2 , approximately 11 % of revenues and % of expenses were transacted in foreign currencies as compared to 6 % and % for the six months ended June 3 0 , 20 2 1 . Net foreign exchange gains ( losses ) resulting from foreign currency transactions included in other income, net were $ 75 and $ (53) for the three months ended June 30, 202 2 and 202 1 , respectively. Net foreign exchange gains (losses) resulting from foreign currency transactions included in other income, net was $ 73 and $ (45) for the six months ended June 30 , 202 2 and 202 1 , respectively.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (“FASB”) issued Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (ASU 2017-14). This new guidance eliminates the requirement to calculate the implied fair value of goodwill to measure a goodwill impairment charge. Instead, entities will record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value. The changes are effective for smaller reporting companies for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, and early adoption is permitted. The Company is currently evaluating the impact that this guidance will have on its consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This update provides optional expedients and exceptions for applying generally accepted accounting principles to certain contract modifications and hedging relationships that reference London Inter-bank Offered Rate (LIBOR) or another reference rate expected to be discontinued. Topic 848 is effective upon issuance and generally can be applied through December 31, 2022. The Company does not expect the adoption of this standard to have an impact on the financial statements or the related disclosures. In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. This update requires that an acquirer recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606 as if the acquirer had originated the contracts. This ASU should be applied prospectively to business combinations occurring on or after the effective date of the update. This update is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period, but should be applied to all acquisitions occurring in the annual period of adoption. The Company is currently evaluating the impact of this ASU on our consolidated financial statements and related disclosures. In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 831): Disclosures by Business Entities about Government Assistance. This update, which aims to increase transparency of government assistance, requires annual disclosures about transactions with a government that are accounted for by applying a grant or contribution accounting model. Under this ASU, an entity is required to disclose (1) the types of assistance, (2) an entity’s accounting for assistance, and (3) the effect of the assistance on an entity’s financial statements. This Update is effective for all entities within their scope for financial statements issued for annual periods beginning after December 15, 2021. Early adoption is permitted. The Company evaluated the effect of adoption of the update and concluded it does not have an impact on the consolidated financial statements or the related disclosures. In June 2022, the FASB issues ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. This update clarifies the guidance in Topic 820 on the fair value measurement of an equity security that is subject to contractual restrictions that prohibit the sale of an equity security. This update also requires specific disclosures related to such an equity security including (1) the fair value of such equity securities reflected in the balance sheet, (2) the nature and remaining duration of the corresponding restrictions, and (3) any circumstances that could cause a lapse in the restrictions. This ASU is effective for all public business entities in fiscal years beginning after December 15, 2023, and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact of this ASU on our consolidated financial statements and related disclosures.

Income (Loss) per Share (Tables

Income (Loss) per Share (Tables)	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Computation of Basic and Diluted Income Per Share	The following table is the computation of basic and diluted income per share: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Basic Income Per Share computation: Numerator: Net Income (loss) $ 411 $ (169 ) $ (1,153 ) $ (831 ) Denominator: Weighted shares outstanding - basic 18,156,561 18,240,811 18,064,616 18,157,941 Net Income (loss) per common share - basic $ 0.02 $ (0.01 ) $ (0.06 ) $ (0.05 ) Diluted Income Per Share computation: Denominator: Weighted shares outstanding - basic 18,156,561 18,240,811 18,064,616 18,157,941 Weighted shares outstanding - diluted 18,156,561 18,240,811 18,064,616 18,157,941 Net Income (loss) per common share - diluted $ 0.02 $ (0.01 ) $ (0.06 ) $ (0.05 )

Business Combinations (Tables)

Business Combinations (Tables)	6 Months Ended
	Jun. 30, 2022
Business Combinations [Abstract]
Schedule of Fair Value Purchase Consideration	The following table summarizes the fair value of purchase consideration to acquire Smarteq: Fair value of purchase consideration Cash $ 6,785 Working capital adjustment (5 ) Total purchase consideration $ 6,780
Schedule of Fair Value Recognized Identified Assets Acquired and Liabilities Assumed	The following is an allocation of the purchase price as of the April 30, 2021 closing date based upon the fair value of the assets acquired and liabilities assumed by the Company in the acquisition: Purchase Price Allocation: Cash $ 503 Accounts receivable 1,415 Prepaid expenses and other assets 109 Inventories 1,286 Right of use assets 232 Property and equipment 131 Intangible assets 1,983 Accounts payable (981 ) Accrued liabilities (837 ) Lease liabilities - short-term (102 ) Lease liabilities - long-term (112 ) Debt (91 ) Identifiable assets acquired $ 3,536 Goodwill 3,244 Total purchase price $ 6,780
Schedule of Intangible Assets Acquired and Expected Lives for Finite-Lived Intangible Assets	The following is a summary of identifiable intangible assets acquired and the related expected lives for the finite-lived intangible assets: Finite-lived assets: Customer relationships $ 787 Trade names 639 Technology 438 Other intangible assets 119 $ 1,983 Intangible Assets: Useful Life Customer relationships 5 years Trade names 5 years Technology 5 years Other intangible assets .5 to 5 years
Supplemental Proforma Financial Information	The following unaudited pro forma financial information presents the combined results of operations for each of the periods presented as if the Smarteq acquisition had occurred as of January 1, 2021: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Net Revenue - pro forma combined $ 24,976 $ 22,558 $ 47,518 $ 42,106 Net Income (Loss) - pro forma combined 411 170 (1,067 ) (651 ) Weighted Average Shares: Basic 18,157 18,241 18,065 18,158 Diluted 18,157 18,241 18,065 18,158 Net Income (Loss) per Share: Basic $ 0.02 $ 0.01 $ (0.06 ) $ (0.04 ) Diluted $ 0.02 $ 0.01 $ (0.06 ) $ (0.04 ) The following adjustments were included in the unaudited pro forma combined net revenues: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Net Revenue $ 24,976 $ 21,681 $ 47,518 $ 39,388 Add: Net Revenue - acquired business 0 877 0 2,718 Net Revenue - pro forma combined $ 24,976 $ 22,558 $ 47,518 $ 42,106 The following adjustments were included in the unaudited pro forma combined net income (loss): Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Net Income (Loss) $ 411 $ (169 ) $ (1,153 ) $ (831 ) Add: Results of operations of acquired business 0 $ 88 0 183 Less: pro forma adjustments Amortization of intangibles 0 (31 ) 0 (134 ) Inventory fair value adjustments 0 168 0 (159 ) Acquisition related expenses 0 121 86 304 Interest income 0 (7 ) 0 (14 ) Net Income (Loss) - pro forma combined $ 411 $ 170 $ (1,067 ) $ (651 )

Cash, Cash Equivalents and In_2

Cash, Cash Equivalents and Investments (Tables)	6 Months Ended
	Jun. 30, 2022
Cash And Cash Equivalents [Abstract]
Cash and Cash Equivalents and Investments	The Company’s cash, cash equivalents, and investments consisted of the following: June 30, December 31, 2022 2021 Cash $ 4,570 $ 6,789 Cash equivalents 1,227 1,403 Short-term investments 22,276 22,562 Long-term investments 250 0 Total $ 28,323 $ 30,754
Summary of Cash in Foreign Accounts	The cash in foreign accounts was as follows: June 30, December 31, 2022 2021 China $ 2,431 $ 2,801 Europe 1,171 1,108 Total $ 3,602 $ 3,909
Cash Equivalents and Investments	Cash equivalents and investments were as follows at June 30 June 30, 2022 December 31, 2021 Level 1 Level 2 Total Level 1 Level 2 Total Cash equivalents: Money market funds $ 1,227 $ 0 $ 1,227 $ 1,403 $ 0 $ 1,403 Total cash equivalents $ 1,227 $ 0 $ 1,227 $ 1,403 $ 0 $ 1,403 Short-term investments: Corporate bonds $ 0 $ 19,776 $ 19,776 $ 0 $ 19,659 $ 19,659 Mutual funds 750 0 750 0 0 0 Certificates of deposit 1,750 0 1,750 2,903 0 2,903 Total short-term investments $ 2,500 $ 19,776 $ 22,276 $ 2,903 $ 19,659 $ 22,562 Long-term investments: Corporate bonds $ 0 $ 250 $ 250 $ 0 $ 0 $ 0 Total long-term investments $ 0 $ 250 $ 250 $ 0 $ 0 $ 0 Cash equivalents and investments - book value $ 3,727 $ 20,026 $ 23,753 $ 4,306 $ 19,659 $ 23,965 Unrealized gains (losses) $ 0 $ (4 ) $ (4 ) $ 1 $ (2 ) $ (1 ) Cash equivalents and investments - fair value $ 3,727 $ 20,022 $ 23,749 $ 4,307 $ 19,657 $ 23,964

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2022
Goodwill And Intangible Assets Disclosure [Abstract]
Summary of Carrying Amount of Goodwill	The change in the carrying amount of goodwill during the six months ended June 30, 2022 is as follows: Amount Balance at December 31, 2021 $ 6,334 Foreign currency translation (348 ) Balance at June 30, 2022 $ 5,986
Summary of Amortization Expense	The summary of amortization expense in the condensed consolidated statement of operations is as follows: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Cost of revenues $ 19 $ 15 $ 39 $ 15 Operating expenses 67 55 138 55 Total $ 86 $ 70 $ 177 $ 70
Summary of Other Intangible Assets	The summary of other intangible assets, net is as follows: June 30, 2022 December 31, 2021 Accumulated Net Book Accumulated Net Book Cost Amortization Value Cost Amortization Value Customer contracts and relationships $ 17,525 $ 17,031 $ 494 $ 17,609 $ 16,978 $ 631 Patents and technology 10,002 9,727 275 10,049 9,698 351 Trademarks and trade names 1,494 1,094 400 1,563 1,051 512 Other intangible assets 97 35 62 110 25 85 Total $ 29,118 $ 27,887 $ 1,231 $ 29,331 $ 27,752 $ 1,579
Summary of Assigned Lives and Weighted Average Amortization Periods by Intangible Asset Category	The assigned lives and weighted average amortization periods by intangible asset category are summarized below: Intangible Assets Assigned Life Weighted Average Amortization Period Customer contracts and relationships 5 years 5.0 Patents and technology 5 years 5.0 Trademarks and trade names 5 years 5.0 Other intangible assets .5 to 5 years 3.6
Schedule of Future Amortization Expenses	The future amortization expenses is as follows:

Balance Sheet Information (Tabl

Balance Sheet Information (Tables)	6 Months Ended
	Jun. 30, 2022
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Summary of Allowances for Accounts Receivable	The allowances for accounts receivable consisted of the following: June 30, 2022 December 31, 2021 Credit loss provision $ 35 $ 26 Credit allowances 44 38 Total allowances $ 79 $ 64
Summary of Allowance for credit losses	The following table summarizes the allowance for credit losses activity during the six months ended June 30, 2022: Balance at December 31, 2021 $ 26 Current period benefit for credit losses 9 Balance at June 30, 2022 $ 35
Summary of Inventories, Net	Inventories, net consisted of the following: June 30, 2022 December 31, 2021 Raw materials $ 6,981 $ 6,171 Work-in-process 962 690 Finished goods 6,246 6,830 Inventories, net $ 14,189 $ 13,691
Summary of Property and Equipment	Property and equipment consisted of the following: June 30, 2022 December 31, 2021 Building $ 6,922 $ 6,892 Computers and office equipment 10,342 10,604 Manufacturing and test equipment 15,463 16,305 Furniture and fixtures 1,455 1,455 Leasehold improvements 1,965 3,021 Motor vehicles 20 20 Total property and equipment 36,167 38,297 Less: Accumulated depreciation and amortization (27,153 ) (28,118 ) Land 1,770 1,770 Property and equipment, net $ 10,784 $ 11,949
Summary of Accrued Liabilities	Accrued liabilities consisted of the following: June 30, 2022 December 31, 2021 Accrued receipts $ 3,340 $ 4,302 Payroll and other employee benefits 2,001 2,266 Paid time off 1,484 1,284 Right of Use Assets 575 537 Deferred revenues 410 538 Customer refunds for estimated returns 310 248 Professional fees and contractors 293 233 Warranties 272 257 Income and sales taxes 278 415 Employee stock purchase plan 235 253 Real estate taxes 156 156 Restructuring 40 368 Other 473 260 Total $ 9,867 $ 11,117
Summary of Long-term Liabilities	Long-term liabilities consisted of the following: June 30, 2022 December 31, 2021 Operating leases $ 3,374 $ 3,600 Finance leases 69 92 Deferred revenue 190 181 Other 99 126 Total $ 3,732 $ 3,999

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Stock-Based Compensation Expense by Type	The stock-based compensation expense by type is as follows: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Service-based awards $ 383 $ 640 $ 703 $ 1,095 Performance-based awards (short-term incentive plan) 263 138 343 196 Performance-based awards (long-term incentive plan) 364 194 671 233 Employee stock purchase plan 76 67 143 133 Total $ 1,086 $ 1,039 $ 1,860 $ 1,657
Stock-Based Compensation	Total stock-based compensation is reflected in the condensed consolidated statements of operations as follows: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Cost of revenues $ 31 $ 65 $ 96 $ 134 Research and development 172 140 308 282 Sales and marketing 255 226 452 386 General and administrative 628 608 1,004 855 Total $ 1,086 $ 1,039 $ 1,860 $ 1,657 The following table presents a summary of the remaining unrecognized share-based compensation expense related to outstanding share-based awards as of June 30, 2022: Award Type Remaining Unrecognized Compensation Expense Weighted Average Life (Years) Service-based awards $ 2,378 1.4 Performance-based awards $ 2,490 1.9
Summary of Service-based Restricted Stock Activity	The following table summarizes service-based restricted stock activity for the six months ended June 30, 2022: Shares Weighted Average Fair Value Unvested Restricted Stock Awards - December 31, 2021 326,336 $ 7.76 Shares awarded 233,744 4.66 Shares vested (166,473 ) 7.30 Shares cancelled (2,135 ) 5.70 Unvested Restricted Stock Awards - June 30, 2022 391,472 $ 6.12 The following table summarizes the restricted stock unit activity during the six months ended June 30, 2022: Shares Weighted Average Fair Value Unvested Restricted Stock Units - December 31, 2021 21,437 $ 7.23 Units awarded 26,667 4.40 Units vested/Shares awarded (4,501 ) 7.33 Units cancelled (2,000 ) 6.98 Unvested Restricted Stock Units - June 30, 2022 41,603 $ 5.42
Information about Stock Options Outstanding Under all Stock Plans	The following table summarizes information about stock options outstanding under all stock option plans at June 30, 2022: Options Outstanding Options Exercisable Range of Exercise Prices Number Outstanding Weighted Average Contractual Life (Years) Intrinsic Value Weighted- Average Exercise Price Number Exercisable Weighted Average Contractual Life (Years) Intrinsic Value Weighted Average Exercise Price $ 5.06 - $ 6.98 4,000 1.92 $ 0 $ 6.02 4,000 1.92 $ 0 $ 6.02
Summary of Performance Share Activity	The following table summarizes the performance award activity: Awards at Target Weighted Average Fair Value Unvested Performance Awards - December 31, 2021 333,153 $ 8.44 Awards granted 269,618 4.84 Awards cancelled (18,800 ) 8.01 Unvested Performance Awards - June 30, 2022 583,971 $ 6.79
Summary Of Active Performance-Based Long-Term Incentive Plans	The following table summarizes the active performance-based long-term incentive plans at June 30, 2022: Number of Shares Share Price That Could Be Earned: LTIP award on Grant Date Target Maximum Performance Period 2020 LTIP $ 8.70 135,889 237,806 January 1, 2020 through December 31, 2022 2021 LTIP $ 8.25 179,797 314,645 January 1, 2021 through December 31, 2023 2022 LTIP $ 4.84 268,285 469,499 January 1, 2022 through December 31, 2024 583,971 1,021,949
Calculation of Fair Value of Each Employee Stock Purchase Grant Using Black-Scholes Option-Pricing Model	The Company calculated the fair value of each employee stock purchase grant on the date of grant using the Black-Scholes option-pricing model using the following assumptions: Employee Stock Purchase Plan 2022 2021 Dividend yield 4.7 % 3.1 % Risk-free interest rate 1.7 % 0.1 % Expected volatility 48 % 48 % Expected life (in years) 0.5 0.5
Summary of Director Awards Activity	The following table summarizes the director awards activity: Shares Weighted Average Fair Value Outstanding - December 31, 2021 11,534 $ 6.57 Shares awarded 120,768 4.02 Shares vested (11,534 ) 6.57 Outstanding - June 30, 2022 120,768 $ 4.02

Benefit Plans (Tables)

Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2022
Compensation And Retirement Disclosure [Abstract]
Summary of Contributions to Retirement Plans	The Company’s contributions to retirement plans during the three and six months ended June 30, 2022 and 2021, respectively, were as follows: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 PCTEL, Inc. 401(k) profit sharing plan - US employees $ 187 $ 184 $ 406 $ 356 Defined contribution plans - Foreign employees 62 119 135 206 Total $ 249 $ 303 $ 541 $ 562

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2022
Commitments And Contingencies Disclosure [Abstract]
Summary of Restructuring Activity	The following table summarizes the restructuring activity during the six months ended June 30 June 30 Tianjin Manufacturing Beijing Total Balance at December 31, 2021 $ 0 $ 368 $ 368 Restructuring expense 1,252 0 1,252 Payments made (1,212 ) (368 ) (1,580 ) Balance at June 30, 2022 $ 40 $ 0 $ 40
Summary of Warranty Activity	The following table summarizes the warranty activity during the six months ended June 30, 2022 and 2021: Six Months Ended June 30, 2022 2021 Beginning balance $ 257 $ 285 Provisions for warranties 41 57 Consumption of reserves (26 ) (58 ) Ending balance $ 272 $ 284

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Components of Lease Cost	The Company's lease cost for the three and six months ended June 30, 2022 and 2021, respectively, included the following components: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Operating lease costs $ 130 $ 115 $ 258 $ 212 Short-term lease costs 23 41 50 82 Variable lease costs (2 ) 2 2 4 Amortization of finance lease assets 16 21 35 35 Interest on finance lease liabilities 1 2 3 4 Total lease cost $ 168 $ 181 $ 348 $ 337
Schedule of Future Minimum Lease Payments under Operating and Finance Leases	The table below summarizes the Company's scheduled future minimum lease payments under operating and finance leases recorded on the balance sheet as of June 30, 2022: Year Operating Leases Finance Leases 2022 (remaining six months) $ 317 $ 27 2023 674 44 2024 588 33 2025 501 15 2026 494 5 Thereafter 2,180 0 Total minimum payments required 4,754 124 Less: amount representing interest 852 8 Present value of net minimum lease payments 3,902 116 Less: current maturities of lease obligations (528 ) (47 ) Long-term lease obligations $ 3,374 $ 69
Summary of Weighted Average Remaining Lease Terms and Discount Rates	The weighted average remaining lease terms and discount rates for all the Company’s operating and finance leases were as follows as of June 30, 2022: June 30, 2022 Weighted-average remaining lease term - finance leases 2.8 years Weighted-average remaining lease term - operating leases 7.9 years Weighted-average discount rate - finance leases 3.9% Weighted-average discount rate - operating leases 5.0%
Schedule of Supplemental Cash Flow Information Related to Leases	The table below presents supplemental cash flow information related to leases during the three and six months ended June 30, 2022 and 2021, respectively: Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 186 $ 153 $ 386 $ 253 Operating cash flows for finance leases $ 1 $ 2 $ 3 $ 4 Financing cash flows for finance leases $ 18 $ 19 $ 37 $ 35
Schedule of Classification of ROU Assets and Lease liabilities	The following table summarizes the classification of ROU assets and lease liabilities as of June 30, 2022 and December 31, 2021: Leases Consolidated Balance Sheet Classification June 30, 2022 December 31, 2021 Assets: Operating right-of-use assets Other noncurrent assets $ 2,190 $ 2,289 Finance right-of-use assets Other noncurrent assets 112 148 Total leased assets $ 2,302 $ 2,437 Liabilities: Current Operating lease liabilities Accrued liabilities $ 528 $ 475 Finance lease liabilities Accrued liabilities 47 62 Noncurrent Operating lease liabilities Long-term liabilities 3,374 3,600 Finance lease liabilities Long-term liabilities 69 92 Total lease liabilities $ 4,018 $ 4,229

Product Line and Geographic I_2

Product Line and Geographic Information (Tables)	6 Months Ended
	Jun. 30, 2022
Result of Product Line Revenues and Gross Profits	Product Line Information: The following tables are the product line revenues and gross profits for the three and six months ended June 30, 2022 and 2021: Three Months Ended June 30, 2022 Antennas & Industrial IoT Devices Test & Measurement Products Corporate Total Revenues $ 17,555 $ 7,431 $ (10 ) $ 24,976 Gross Profit $ 5,626 $ 5,759 $ 42 $ 11,427 Gross Profit % 32.0 % 77.5 % NA 45.8 % Six Months Ended June 30, 2022 Antennas & Industrial IoT Devices Test & Measurement Products Corporate Total Revenues $ 34,657 $ 13,014 $ (153 ) $ 47,518 Gross Profit $ 10,873 $ 9,921 $ (34 ) $ 20,760 Gross Profit % 31.4 % 76.2 % NA 43.7 % Three Months Ended June 30, 2021 Antennas & Industrial IoT Devices Test & Measurement Products Corporate Total Revenues $ 15,562 $ 6,414 $ (295 ) $ 21,681 Gross Profit $ 5,175 $ 4,834 $ (67 ) $ 9,942 Gross Profit % 33.3 % 75.4 % NA 45.9 % Six Months Ended June 30, 2021 Antennas & Industrial IoT Devices Test & Measurement Products Corporate Total Revenues $ 27,285 $ 12,619 $ (516 ) $ 39,388 Gross Profit $ 8,922 $ 9,422 $ (64 ) $ 18,280 Gross Profit % 32.7 % 74.7 % NA 46.4 %
Customers Accounted Revenues by Geographic Location	Geographic Information: The Company’s revenue from customers by geographic location, as a percent of total revenues for the three and six months ended June 30, 2022 and 2021, is as follows: Three Months Ended June 30, Six Months Ended June 30, Region 2022 2021 2022 2021 Europe, Middle East & Africa 17% 23% 22% 23% Asia Pacific 5% 7% 6% 7% Other Americas 3% 4% 2% 4% Total Foreign sales 25% 34% 30% 34%
Revenue [Member]
Schedule of Revenues and Total Trade Accounts Receivable Represents Customers Accounted for 10% or More Percentage	The following table represents the customers that accounted for 10% or more of revenues during the three and six months ended June 30, 2022 and 2021: Three Months Ended June 30, Six Months Ended June 30, Revenues 2022 2021 2022 2021 Customer C 17% 9% 14% 10% Customer A 12% 3% 7% 5%
Trade Accounts Receivable [Member]
Schedule of Revenues and Total Trade Accounts Receivable Represents Customers Accounted for 10% or More Percentage	The following table represents the customers that accounted for 10% or more of total trade accounts receivable: Trade Accounts Receivable June 30, 2022 December 31, 2021 Customer B 13% 4% Customer C 10% 9%

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Percentage of revenue transacted in foreign currency			11%	6%
Percentage of expenses transacted in foreign currency			14%	18%
Net foreign exchange gains (losses) resulting from foreign currency transactions included in other income	$ 75	$ (53)	$ 73	$ (45)

Income (Loss) per Share - Compu

Income (Loss) per Share - Computation of Basic and Diluted Income Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
NET INCOME (LOSS)	$ 411	$ (169)	$ (1,153)	$ (831)
Denominator:
Weighted shares outstanding - basic	18,156,561	18,240,811	18,064,616	18,157,941
Net Income (loss) per common share - basic	$ 0.02	$ (0.01)	$ (0.06)	$ (0.05)
Weighted Average Shares:
Weighted shares outstanding - basic	18,156,561	18,240,811	18,064,616	18,157,941
Weighted shares outstanding - diluted	18,156,561	18,240,811	18,064,616	18,157,941
Net Income (loss) per common share - diluted	$ 0.02	$ (0.01)	$ (0.06)	$ (0.05)

Business Combinations - Additio

Business Combinations - Additional Information (Detail) kr in Millions			1 Months Ended	6 Months Ended
	Apr. 30, 2021 USD ($) ft²	Apr. 30, 2021 SEK (kr)	Apr. 30, 2022	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Payments for business acquisition, net of cash				$ 0	$ 6,277,000
Adjusted inventory				500,000
Lease expiration date			Apr. 30, 2024
Right of Use Asset				2,190,000		$ 2,289,000
Operating lease liability				$ 3,902,000
Loan, frequency of periodic payment installments				monthly
Loan payment start month and year				2022-06
Net deferred tax assets				$ 15,000,000		15,300,000
Goodwill				$ 5,986,000		$ 6,334,000
Smarteq [Member]
Business Acquisition [Line Items]
Working capital adjustments	$ 5,000
Total cash consideration	6,785,000
Cash	503,000
Debt	91,000
Gross accounts receivable	$ 1,415,000
Area of lease | ft²	4,080
Lease expiration date	Jul. 31, 2023	Jul. 31, 2023
Right of Use Asset	$ 200,000
Operating lease liability	200,000
Goodwill	3,244,000
Transaction costs	$ 300,000
Smarteq France [Member]
Business Acquisition [Line Items]
Loan term	5 years	5 years
Loan amount	$ 100,000
Loan interest rate	0.57%	0.57%
Loan, frequency of periodic payment installments	monthly	monthly
Loan payment start month and year	2022-06	2022-06
Loan payment end month and year	2026-05	2026-05
Repayments of loan	$ 0
Net deferred tax assets	2,400,000
SPA [Member] | Smarteq [Member]
Business Acquisition [Line Items]
Cash purchase price | kr		kr 53
Working capital adjustments | kr		1.6
Net cash adjustment | kr		2.1
Total cash consideration | kr		kr 56.8
Payments for business acquisition, net of cash	$ 6,800,000

Business Combinations - Schedul

Business Combinations - Schedule of Fair Value Purchase Consideration (Detail) - Smarteq [Member] $ in Thousands	Apr. 30, 2021 USD ($)
Business Acquisition [Line Items]
Cash	$ 6,785
Working capital adjustment	(5)
Total purchase consideration	$ 6,780

Business Combinations - Sched_2

Business Combinations - Schedule of Fair Value Recognized Identified Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Apr. 30, 2021	Jun. 30, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Intangible assets	$ 1,983
Goodwill		$ 5,986	$ 6,334
Smarteq [Member]
Business Acquisition [Line Items]
Cash	503
Accounts receivable	1,415
Prepaid expenses and other assets	109
Inventories	1,286
Right of use assets	232
Property and equipment	131
Intangible assets	1,983
Accounts payable	(981)
Accrued liabilities	(837)
Lease liabilities - short-term	(102)
Lease liabilities - long-term	(112)
Debt	(91)
Identifiable assets acquired	3,536
Goodwill	3,244
Total purchase price	$ 6,780

Business Combinations - Sched_3

Business Combinations - Schedule of Intangible Assets Acquired and Expected Lives for Finite-Lived Intangible Assets (Detail) $ in Thousands	Apr. 30, 2021 USD ($)
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 1,983
Customer Relationships [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 787
Finite-lived intangible assets useful life	5 years
Trade Names [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 639
Finite-lived intangible assets useful life	5 years
Technology [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 438
Finite-lived intangible assets useful life	5 years
Other Intangible Assets [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 119
Other Intangible Assets [Member] | Minimum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Finite-lived intangible assets useful life	6 months
Other Intangible Assets [Member] | Maximum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Finite-lived intangible assets useful life	5 years

Business Combinations - Supplem

Business Combinations - Supplemental Proforma Financial Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Business Combinations [Abstract]
Net Revenue - pro forma combined	$ 24,976	$ 22,558	$ 47,518	$ 42,106
Net Income (Loss) - pro forma combined	$ 411	$ 170	$ (1,067)	$ (651)
Weighted Average Shares:
Basic	18,157	18,241	18,065	18,158
Diluted	18,157	18,241	18,065	18,158
Net Income (Loss) per Share:
Basic	$ 0.02	$ 0.01	$ (0.06)	$ (0.04)
Diluted	$ 0.02	$ 0.01	$ (0.06)	$ (0.04)

Business Combinations - Suppl_2

Business Combinations - Supplemental Proforma Combined Net Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Business Combinations [Abstract]
Net Revenue	$ 24,976	$ 21,681	$ 47,518	$ 39,388
Add: Net Revenue - acquired business	0	877	0	2,718
Net Revenue - pro forma combined	$ 24,976	$ 22,558	$ 47,518	$ 42,106

Business Combinations - Suppl_3

Business Combinations - Supplemental Proforma Combined Net Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Business Combinations [Abstract]
Net Income (Loss)	$ 411	$ (169)	$ (1,153)	$ (831)
Add: Results of operations of acquired business	0	88	0	183
Less: pro forma adjustments
Amortization of intangibles	0	(31)	0	(134)
Inventory fair value adjustments	0	168	0	(159)
Acquisition related expenses	0	121	86	304
Interest income	0	(7)	0	(14)
Net Income (Loss) - pro forma combined	$ 411	$ 170	$ (1,067)	$ (651)

Cash, Cash Equivalents and In_3

Cash, Cash Equivalents and Investments - Cash and Cash Equivalents and Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Cash And Cash Equivalents [Abstract]
Cash	$ 4,570	$ 6,789
Cash equivalents	1,227	1,403
Short-term investments	22,276	22,562
Long-term investments	250	0
Cash and investments	$ 28,323	$ 30,754

Cash, Cash Equivalents and In_4

Cash, Cash Equivalents and Investments - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents maturities	90 days	90 days
Investment of cash equivalents are redeemable upon demand using amortized cost method	$ 1
Investment in money market funds restricted by investment in short term securities, percentage	100%
Short-term investments, maturities, minimum	90 days
Short-term investments, maturities, maximum	1 year
Long-term investments, maturities, minimum	1 year
Long-term investments, maturities, maximum	2 years
Unrealized gains (losses)	$ 4,000	$ 1,000
Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Federal Deposit Insurance Corporation insured limit	$ 250,000

Cash, Cash Equivalents and In_5

Cash, Cash Equivalents and Investments - Summary of Cash in Foreign Accounts (Detail) - Cash [Member] - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Cash And Cash Equivalents [Line Items]
Cash in foreign accounts	$ 3,602	$ 3,909
CHINA [Member]
Cash And Cash Equivalents [Line Items]
Cash in foreign accounts	2,431	2,801
Europe [Member]
Cash And Cash Equivalents [Line Items]
Cash in foreign accounts	$ 1,171	$ 1,108

Cash, Cash Equivalents and In_6

Cash, Cash Equivalents and Investments - Cash Equivalents and Investments (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	$ 1,227	$ 1,403
Short-term investments	22,276	22,562
Long-term investment securities	250	0
Cash equivalents and investments - book value	23,753	23,965
Unrealized gains (losses)	(4)	(1)
Cash equivalents and investments - fair value	23,749	23,964
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	1,227	1,403
Short-term investments	2,500	2,903
Long-term investment securities	0	0
Cash equivalents and investments - book value	3,727	4,306
Unrealized gains (losses)	0	1
Cash equivalents and investments - fair value	3,727	4,307
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Short-term investments	19,776	19,659
Long-term investment securities	250	0
Cash equivalents and investments - book value	20,026	19,659
Unrealized gains (losses)	(4)	(2)
Cash equivalents and investments - fair value	20,022	19,657
Money Market Funds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	1,227	1,403
Money Market Funds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	1,227	1,403
Money Market Funds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Corporate Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	19,776	19,659
Long-term investment securities	250	0
Corporate Bonds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0	0
Long-term investment securities	0	0
Corporate Bonds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	19,776	19,659
Long-term investment securities	250	0
Mutual Fund [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	750	0
Mutual Fund [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	750	0
Mutual Fund [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0	0
Certificates of Deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	1,750	2,903
Certificates of Deposit [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	1,750	2,903
Certificates of Deposit [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	$ 0	$ 0

Goodwill and Intangible Assets

Goodwill and Intangible Assets - Summary of Carrying Amount of Goodwill (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Finite Lived Intangible Assets [Line Items]
Beginning Balance	$ 6,334
Foreign currency translation	(348)
Ending Balance	$ 5,986

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 67	$ 55	$ 138	$ 55
Foreign currency translation adjustment				200
Operating Expense [Member]
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets			$ 100	$ 200
Smarteq Wireless Aktiebolag [Member]
Finite Lived Intangible Assets [Line Items]
Finite-lived intangible assets	$ 2,000
Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets basis over estimated useful lives				1 year
Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets basis over estimated useful lives				5 years

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Summary of Amortization Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Finite Lived Intangible Assets [Line Items]
Amortization expense, total	$ 86	$ 70	$ 177	$ 70
Cost of Revenues [Member]
Finite Lived Intangible Assets [Line Items]
Amortization expense, total	19	15	39	15
Operating Expense [Member]
Finite Lived Intangible Assets [Line Items]
Amortization expense, total	$ 67	$ 55	$ 138	$ 55

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Cost	$ 29,118	$ 29,331
Accumulated Amortization	27,887	27,752
Net Book Value	1,231	1,579
Customer Contracts and Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Cost	17,525	17,609
Accumulated Amortization	17,031	16,978
Net Book Value	494	631
Patents and Technology [Member]
Finite Lived Intangible Assets [Line Items]
Cost	10,002	10,049
Accumulated Amortization	9,727	9,698
Net Book Value	275	351
Trademarks and Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Cost	1,494	1,563
Accumulated Amortization	1,094	1,051
Net Book Value	400	512
Other Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Cost	97	110
Accumulated Amortization	35	25
Net Book Value	$ 62	$ 85

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Summary of Assigned Lives and Weighted Average Amortization Periods by Intangible Asset Category (Detail)	6 Months Ended
	Jun. 30, 2022
Minimum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	1 year
Maximum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	5 years
Customer Contracts and Relationships [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	5 years
Weighted Average Amortization Period	5 years
Patents and Technology [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	5 years
Weighted Average Amortization Period	5 years
Trademarks and Trade Names [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	5 years
Weighted Average Amortization Period	5 years
Other Intangible Assets [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Weighted Average Amortization Period	3 years 7 months 6 days
Other Intangible Assets [Member] | Minimum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	6 months
Other Intangible Assets [Member] | Maximum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	5 years

Goodwill and Intangible Asset_6

Goodwill and Intangible Assets - Schedule of Future Amortization Expenses (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2022 (remaining six months)	$ 165
2023	331
2024	318
2025	312
2026	105
Thereafter	0
Net Book Value	$ 1,231	$ 1,579

Balance Sheet Information - Add

Balance Sheet Information - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Allowance for credit losses	$ 35		$ 35		$ 26
Consigned inventory with customers	400		400		400
Allowance for inventory losses	3,300		3,300		$ 4,100
Depreciation and amortization	$ 800	$ 800	$ 1,600	$ 1,500
Equipment [Member]
Property, Plant and Equipment [Line Items]
Period over which assets are depreciated			5 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Period over which assets are depreciated			7 years
Building [Member]
Property, Plant and Equipment [Line Items]
Period over which assets are depreciated			30 years
Minimum [Member]
Property, Plant and Equipment [Line Items]
Standard term of accounts receivable			30 days
Minimum [Member] | Computer Equipment and Software Licenses [Member]
Property, Plant and Equipment [Line Items]
Period over which assets are depreciated			3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Standard term of accounts receivable			90 days
Useful lives of the assets			1 year
Maximum [Member] | Computer Equipment and Software Licenses [Member]
Property, Plant and Equipment [Line Items]
Period over which assets are depreciated			5 years

Balance Sheet Information - Sum

Balance Sheet Information - Summary of Allowances for Accounts Receivable (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Credit loss provision	$ 35	$ 26
Credit allowances	44	38
Total allowances	$ 79	$ 64

Balance Sheet Information - All

Balance Sheet Information - Allowance for credit losses (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Balance at December 31, 2021	$ 26
Current period benefit for credit losses	9
Balance at June 30, 2022	$ 35

Balance Sheet Information - S_2

Balance Sheet Information - Summary of Inventories, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Inventory Net [Abstract]
Raw materials	$ 6,981	$ 6,171
Work-in-process	962	690
Finished goods	6,246	6,830
Inventories, net	$ 14,189	$ 13,691

Balance Sheet Information - S_3

Balance Sheet Information - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 36,167	$ 38,297
Less: Accumulated depreciation and amortization	(27,153)	(28,118)
Land	1,770	1,770
Property and equipment, net	10,784	11,949
Building [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	6,922	6,892
Computers and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	10,342	10,604
Manufacturing and Test Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	15,463	16,305
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,455	1,455
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,965	3,021
Motor Vehicles [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 20	$ 20

Balance Sheet Information - S_4

Balance Sheet Information - Summary of Accrued Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Payables And Accruals [Abstract]
Accrued receipts	$ 3,340	$ 4,302
Payroll and other employee benefits	2,001	2,266
Paid time off	1,484	1,284
Right of Use Assets	575	537
Deferred revenues	410	538
Customer refunds for estimated returns	310	248
Professional fees and contractors	293	233
Warranties	272	257	$ 284	$ 285
Income and sales taxes	278	415
Employee stock purchase plan	235	253
Real estate taxes	156	156
Restructuring	40	368
Other	473	260
Total	$ 9,867	$ 11,117

Balance Sheet Information - S_5

Balance Sheet Information - Summary of Long-term Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Liabilities Noncurrent [Abstract]
Operating leases	$ 3,374	$ 3,600
Finance leases	69	92
Deferred revenue	190	181
Other	99	126
Total	$ 3,732	$ 3,999

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock compensation expense	$ 1,086	$ 1,039	$ 1,860	$ 1,657

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock-Based Compensation Expense by Type (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Stock Based Compensation [Line Items]
Total	$ 1,086	$ 1,039	$ 1,860	$ 1,657
Service-based Awards [Member]
Stock Based Compensation [Line Items]
Total	383	640	703	1,095
Performance-based Awards - Short-term Incentive Plan [Member]
Stock Based Compensation [Line Items]
Total	263	138	343	196
Performance-based Awards - Long-term Incentive Plan [Member]
Stock Based Compensation [Line Items]
Total	364	194	671	233
Employee Stock Purchase Plan [Member]
Stock Based Compensation [Line Items]
Total	$ 76	$ 67	$ 143	$ 133

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock-Based Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	$ 1,086	$ 1,039	$ 1,860	$ 1,657
Cost of Revenues [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	31	65	96	134
Research and Development [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	172	140	308	282
Sales and Marketing [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	255	226	452	386
General and Administrative [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	$ 628	$ 608	$ 1,004	$ 855

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of Remaining Unrecognized Share-based Compensation Expense Related to Outstanding Share-based Awards (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Service-based Awards [Member]
Stock Based Compensation [Line Items]
Remaining unrecognized share-based compensation expense	$ 2,378
Share based compensation arrangement by share based payment award options weighted average life in years	1 year 4 months 24 days
Performance-based Awards [Member]
Stock Based Compensation [Line Items]
Remaining unrecognized share-based compensation expense	$ 2,490
Share based compensation arrangement by share based payment award options weighted average life in years	1 year 10 months 24 days

Stock-Based Compensation - Su_3

Stock-Based Compensation - Summary of Service-based Restricted Stock Activity (Detail) - Restricted Stock [Member]	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Beginning balance, Shares | shares	326,336
Shares awarded, Shares | shares	233,744
Shares vested, Shares | shares	(166,473)
Shares cancelled, Shares | shares	(2,135)
Unvested Ending balance, Shares | shares	391,472
Unvested Beginning balance, Weighted Average Fair Value | $ / shares	$ 7.76
Shares awarded, Weighted Average Fair Value | $ / shares	4.66
Shares vested, Weighted Average Fair Value | $ / shares	7.30
Shares cancelled, Weighted Average Fair Value | $ / shares	5.70
Unvested Ending balance, Weighted Average Fair Value | $ / shares	$ 6.12

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock Units - Service Based - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vested intrinsic value	$ 800	$ 2,200
Service Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vested intrinsic value	$ 21	$ 42

Stock-Based Compensation - Su_4

Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Detail) - Restricted Stock Units (RSUs)	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Beginning balance, Shares | shares	21,437
Units awarded, Shares | shares	26,667
Units vested/Shares awarded, Shares | shares	(4,501)
Units cancelled, Shares | shares	(2,000)
Unvested Ending balance, Shares | shares	41,603
Unvested Beginning balance, Weighted Average Fair Value | $ / shares	$ 7.23
Units awarded, Weighted Average Fair Value | $ / shares	4.40
Units vested/Shares awarded, Weighted Average Fair Value | $ / shares	7.33
Units cancelled, Weighted Average Fair Value | $ / shares	6.98
Unvested Ending balance, Weighted Average Fair Value | $ / shares	$ 5.42

Stock-Based Compensation - St_2

Stock-Based Compensation - Stock Options - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2022 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Price	$ 4.09
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of termination of employment	180 days
Stock options granted period	7 years
Period of expected life, options granted	5 years

Stock-Based Compensation - Info

Stock-Based Compensation - Information about Stock Options Outstanding Under all Stock Plans (Detail) - Range One [Member] $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range of exercise prices	$ 5.06
Upper range of exercise prices	$ 6.98
Options Outstanding, Number | shares	4,000
Options Outstanding, Weighted Average Contractual Life (Years)	1 year 11 months 1 day
Options Outstanding, Intrinsic Value | $	$ 0
Options Outstanding, Weighted-Average Exercise Price	$ 6.02
Options Exercisable, Number | shares	4,000
Options Exercisable, Weighted Average Contractual Life (Years)	1 year 11 months 1 day
Options Exercisable, Intrinsic Value | $	$ 0
Options Exercisable, Weighted Average Exercise Price	$ 6.02

Stock-Based Compensation - Shor

Stock-Based Compensation - Short-Term Incentive Plan - Additional Information (Detail) - 2022 STIP [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2022	Jun. 30, 2022
Executives and Key Managers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of incentive awards in shares		50%
Percentage of incentive awards in cash		50%
Payments of bonus awards in common stock	$ 0.3
Other Participants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of incentive awards in cash	100%

Stock-Based Compensation - Su_5

Stock-Based Compensation - Summary of Performance Share Activity (Detail) - Performance Related Awards [Member]	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Beginning balance, Shares | shares	333,153
Awards granted | shares	269,618
Shares cancelled, Shares | shares	(18,800)
Unvested Ending balance, Shares | shares	583,971
Unvested Beginning balance, Weighted Average Fair Value | $ / shares	$ 8.44
Shares awarded, Weighted Average Fair Value | $ / shares	4.84
Shares cancelled, Weighted Average Fair Value | $ / shares	8.01
Unvested Ending balance, Weighted Average Fair Value | $ / shares	$ 6.79

Stock-Based Compensation - Long

Stock-Based Compensation - Long-Term Incentive Plan - Additional Information (Detail) - 2022 LTIP $ / shares in Units, $ in Millions	1 Months Ended
	Feb. 28, 2022 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Revenue growth target performance period start date	Jan. 01, 2022
Revenue growth target performance period end date	Dec. 31, 2024
Total fair market value of award at target | $	$ 1.3
Shares awarded, Weighted Average Fair Value | $ / shares	$ 4.84
Number of shares earned	269,618,000
Maximum number of shares that may be issued	471,832,000

Stock-Based Compensation - Su_6

Stock-Based Compensation - Summary Of Active Performance-Based Long-Term Incentive Plans (Detail)	Jun. 30, 2022 shares
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	1,021,949
Target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	583,971
2020 LTIP [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	237,806
2020 LTIP [Member] | Share Price On Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	8.70
2020 LTIP [Member] | Target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	135,889
2021 LTIP [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	314,645
2021 LTIP [Member] | Share Price On Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	8.25
2021 LTIP [Member] | Target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	179,797
2022 LTIP [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	469,499
2022 LTIP [Member] | Share Price On Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	4.84
2022 LTIP [Member] | Target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved	268,285

Stock-Based Compensation - Empl

Stock-Based Compensation - Employee Stock Purchase Plan ("ESPP") - Additional Information (Detail) - Employee Stock Purchase Plan [Member]	6 Months Ended
	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair market value to determine purchase price	85%
Offering period	6 months
Rate of discount on fair market value of common stock under ESPP	15%

Stock-Based Compensation - Calc

Stock-Based Compensation - Calculation of Fair Value of Each Employee Stock Purchase Grant Using the Black-Scholes Option-Pricing Model (Detail) - Employee Stock Purchase Plan [Member]	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Calculation of fair value of each employee stock purchase grant using the Black-Scholes option-pricing model
Dividend yield	4.70%	3.10%
Risk-free interest rate	1.70%	0.10%
Expected volatility	48%	48%
Expected life (in years)	6 months	6 months

Stock-Based Compensation - Boar

Stock-Based Compensation - Board of Director Equity Awards - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	May 31, 2022	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vested intrinsic value		$ 800	$ 2,200
New Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants vesting period		3 years
Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants vesting period		1 year
Common stock issued	120,768
Restricted shares vested intrinsic value		$ 47

Stock-Based Compensation - Su_7

Stock-Based Compensation - Summary of Director Awards Activity (Detail) - Board of Directors [Member]	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Beginning balance, Shares | shares	11,534
Shares awarded, Shares | shares	120,768
Shares vested, Shares | shares	(11,534)
Outstanding, Ending balance, Shares | shares	120,768
Weighted Average Fair Value, Beginning balance | $ / shares	$ 6.57
Shares awarded, Weighted Average Fair Value | $ / shares	4.02
Shares vested, Weighted Average Fair Value | $ / shares	6.57
Weighted Average Fair Value, Ending balance | $ / shares	$ 4.02

Stock-Based Compensation - Em_2

Stock-Based Compensation - Employee Withholding Taxes on Stock Awards - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payment of withholding taxes related to stock awards	$ 396	$ 782
Employee Withholding Taxes on Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payment of withholding taxes related to stock awards	$ 400	$ 800

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Detail) - Employee Benefit Plans [Member]	6 Months Ended
	Jun. 30, 2022
Defined Benefit Plan Disclosure [Line Items]
Maximum percentage of current compensation of employee to contribute in plan	15%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer matches employee contribution percentage	4%

Benefit Plans - Summary of Cont

Benefit Plans - Summary of Contributions to Retirement Plans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Contribution to retirement plans	$ 249	$ 303	$ 541	$ 562
US Employees [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to retirement plans	187	184	406	356
Foreign Employees [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to retirement plans	$ 62	$ 119	$ 135	$ 206

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Nov. 30, 2021 USD ($) Employee	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Employee	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Commitments And Contingencies Disclosure [Line Items]
Restructuring expenses		$ 317	$ 60	$ 1,252	$ 60
Payments for restructuring				1,580
Refund liability		310		310		$ 248
Warranties		272	284	272	284	257	$ 285
Warranty Reserves [Member]
Commitments And Contingencies Disclosure [Line Items]
Refund liability		300		300		$ 200
Warranties		$ 300	$ 300	$ 300	$ 300
Warranty Reserves [Member] | Antenna [Member]
Commitments And Contingencies Disclosure [Line Items]
Repair and replacement warranty				5 years
Beijing Restructuring [Member]
Commitments And Contingencies Disclosure [Line Items]
Restructuring expenses				$ 0
Payments for restructuring				368
Tianjin [Member]
Commitments And Contingencies Disclosure [Line Items]
Restructuring expenses				1,200
Tianjin [Member] | Employee Severance [Member]
Commitments And Contingencies Disclosure [Line Items]
Restructuring expenses				$ 1,100
Number of employees separation | Employee				78
Tianjin [Member] | Fixed Assets and Facilities [Member]
Commitments And Contingencies Disclosure [Line Items]
Restructuring expenses				$ 100
Antenna [Member] | Beijing Restructuring [Member]
Commitments And Contingencies Disclosure [Line Items]
Restructuring expenses	$ 800
Number of employees separation | Employee	14
Number of former employees rehired | Employee	4
Antenna [Member] | Employee Severance [Member] | Beijing Restructuring [Member]
Commitments And Contingencies Disclosure [Line Items]
Payments for restructuring				$ 400

Commitments and Contingencies_2

Commitments and Contingencies - Summary of Restructuring Activity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restructuring Cost And Reserve [Line Items]
Beginning balance			$ 368
Restructuring expense	$ 317	$ 60	1,252	$ 60
Payments made			(1,580)
Ending balance	40		40
Tianjin Manufacturing Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Beginning balance			0
Restructuring expense			1,252
Payments made			(1,212)
Ending balance	40		40
Beijing Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Beginning balance			368
Restructuring expense			0
Payments made			(368)
Ending balance	$ 0		$ 0

Commitments and Contingencies_3

Commitments and Contingencies - Summary of Warranty Activity (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Valuation And Qualifying Accounts [Abstract]
Beginning balance	$ 257	$ 285
Provisions for warranties	41	57
Consumption of reserves	(26)	(58)
Ending balance	$ 272	$ 284

Leases - Components of Lease Co

Leases - Components of Lease Cost (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating lease costs	$ 130	$ 115	$ 258	$ 212
Short-term lease costs	23	41	50	82
Variable lease costs	(2)	2	2	4
Amortization of finance lease assets	16	21	35	35
Interest on finance lease liabilities	1	2	3	4
Total lease cost	$ 168	$ 181	$ 348	$ 337

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments under Operating and Finance Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Operating Leases
2022 (remaining six months)	$ 317
2023	674
2024	588
2025	501
2026	494
Thereafter	2,180
Total minimum payments required	4,754
Less: amount representing interest	852
Present value of net minimum lease payments	3,902
Less: current maturities of lease obligations	(528)	$ (475)
Long-term lease obligations	3,374	3,600
Finance Leases
2022 (remaining six months)	27
2023	44
2024	33
2025	15
2026	5
Thereafter	0
Total minimum payments required	124
Less: amount representing interest	8
Present value of net minimum lease payments	116
Less: current maturities of lease obligations	(47)	(62)
Long-term lease obligations	$ 69	$ 92

Leases - Summary of Weighted Av

Leases - Summary of Weighted Average Remaining Lease Terms and Discount Rates (Detail)	Jun. 30, 2022
Leases [Abstract]
Weighted-average remaining lease term - finance leases	2 years 9 months 18 days
Weighted-average remaining lease term - operating leases	7 years 10 months 24 days
Weighted-average discount rate - finance leases	3.90%
Weighted-average discount rate - operating leases	5%

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating cash flows for operating leases	$ 186	$ 153	$ 386	$ 253
Operating cash flows for finance leases	1	2	3	4
Financing cash flows for finance leases	$ 18	$ 19	$ 37	$ 35

Leases - Schedule of Classifica

Leases - Schedule of Classification of ROU Assets and Lease liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
ASSETS
Operating right-of-use assets	$ 2,190	$ 2,289
Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List	Other noncurrent assets	Other noncurrent assets
Finance right-of-use assets	$ 112	$ 148
Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List	Other noncurrent assets	Other noncurrent assets
Total leased assets	$ 2,302	$ 2,437
Current
Operating lease liabilities	$ 528	$ 475
Operating Lease Liability Current Statement Of Financial Position Extensible List	Accrued liabilities	Accrued liabilities
Finance lease liabilities	$ 47	$ 62
Finance Lease Liability Current Statement Of Financial Position Extensible List	Accrued liabilities	Accrued liabilities
Noncurrent
Operating leases	$ 3,374	$ 3,600
Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List	Long-term liabilities	Long-term liabilities
Finance leases	$ 69	$ 92
Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List	Long-term liabilities	Long-term liabilities
Total lease liabilities	$ 4,018	$ 4,229

Leases - Additional Information

Leases - Additional Information (Detail) $ in Thousands		1 Months Ended		6 Months Ended
	Apr. 30, 2021 USD ($) ft²	Apr. 30, 2022 USD ($) ft² Employee	Nov. 30, 2021 Employee	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Leases [Line Items]
Operating lease term of contract		2 years
Right of Use Asset				$ 2,190	$ 2,289
Lease expiration date		Apr. 30, 2024
Operating lease liability				$ 3,902
Smarteq Wireless Aktiebolag [Member]
Leases [Line Items]
Right of Use Asset	$ 200
Operating lease liability	$ 200
Beijing Design Center [Member]
Leases [Line Items]
Right of Use Asset		$ 100
Number of separate employees | Employee			14
Number of former employees rehired | Employee		4
Engineering Sales And Administration | Smarteq Wireless Aktiebolag [Member]
Leases [Line Items]
Area of lease | ft²	4,080
Lease expiration date	Jul. 31, 2023
Tianjin [Member]
Leases [Line Items]
Lease description				The Company completed the transition of antenna manufacturing from its Tianjin, China facility to contract manufacturers during the first quarter of 2022. In April 2022, the Company vacated the manufacturing facility and moved a small team of employees associated with sourcing, quality, and local customer support to a new leased facility in Tianjin, China. The Company entered into a two-year lease ending December 31, 2023 for 1,694 square feet of space in a new office located in Tianjin, China. The Company recognized a present value of the right of use asset of $0.1 million for this new office lease.
Operating lease term of contract		2 years
Area of lease | ft²		1,694
Right of Use Asset		$ 100
Lease expiration date		Dec. 31, 2023

Borrowings - Additional Informa

Borrowings - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Subordinated Borrowings [Abstract]
Loan period	5 years
Payment of principal loan amount	$ 0.1
Loan interest rate	0.57%
Loan, frequency of periodic payment installments	monthly
Loan payment start month and year	2022-06
Loan maturity term	May 31, 2026

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Income Tax Disclosure [Line Items]
Income tax expense (benefit)	$ 31	$ 7	$ 39	$ 12
Statutory rate			21%	21%
Net deferred tax assets	15,000		$ 15,000		$ 15,300
Operating loss and credit carry forward, expiration period			The Company’s federal NOLs generated in 2018 and future periods will not expire, and the Company’s NOLs and credits generated as of December 31, 2017 have a finite life primarily based on the 20-year carry forward of federal net operating losses. The timing differences have a ratable reversal pattern over 12 years
Net operating loss carry forward period			20 years
Domestic deferred tax assets ratable reversal pattern period			12 years
Gross unrecognized tax benefit	800		$ 800		$ 800
Deferred payroll taxes	200		200
Smarteq Wireless Aktiebolag [Member]
Income Tax Disclosure [Line Items]
Net deferred tax assets	2,400		2,400
Domestic Tax Authority [Member]
Income Tax Disclosure [Line Items]
Net deferred tax assets	11,900		11,900
Foreign Tax Authority | CHINA [Member]
Income Tax Disclosure [Line Items]
Net deferred tax assets	1,100		1,100
Foreign Tax Authority | Sweden [Member]
Income Tax Disclosure [Line Items]
Net deferred tax assets	$ 2,000		$ 2,000

Product Line and Geographic I_3

Product Line and Geographic Information - Result of Product Line Revenues and Gross Profits (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Results of operations by segments
Revenues	$ 24,976	$ 21,681	$ 47,518	$ 39,388
Gross Profit	$ 11,427	$ 9,942	$ 20,760	$ 18,280
Gross Profit %	45.80%	45.90%	43.70%	46.40%
Operating Segments [Member] | Antennas & Industrial IoT Devices [Member]
Results of operations by segments
Revenues	$ 17,555	$ 15,562	$ 34,657	$ 27,285
Gross Profit	$ 5,626	$ 5,175	$ 10,873	$ 8,922
Gross Profit %	32%	33.30%	31.40%	32.70%
Operating Segments [Member] | Test & Measurement Products [Member]
Results of operations by segments
Revenues	$ 7,431	$ 6,414	$ 13,014	$ 12,619
Gross Profit	$ 5,759	$ 4,834	$ 9,921	$ 9,422
Gross Profit %	77.50%	75.40%	76.20%	74.70%
Corporate, Non-Segment [Member]
Results of operations by segments
Revenues	$ (10)	$ (295)	$ (153)	$ (516)
Gross Profit	$ 42	$ (67)	$ (34)	$ (64)

Product Line and Geographic I_4

Product Line and Geographic Information - Customers Accounted Revenues by Geographic Location (Detail) - Revenue [Member] - Geographic Concentration Risk [Member]	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Europe, Middle East, & Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Sales	17%	23%	22%	23%
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Sales	5%	7%	6%	7%
Other Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Sales	3%	4%	2%	4%
Total Foreign Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Sales	25%	34%	30%	34%

Product Line and Geographic I_5

Product Line and Geographic Information - Schedule of Revenues and Total Trade Accounts Receivable Represents Customer Accounted for 10% or More Percentage (Detail) - Customer Concentration Risk	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Revenue, Segment Benchmark | Customer C
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage	17%	9%	14%	10%
Revenue, Segment Benchmark | Customer A
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage	12%	3%	7%	5%
Trade Accounts Receivable [Member] | Customer C
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage			10%		9%
Trade Accounts Receivable [Member] | Customer B
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage			13%		4%

Revenue from Contracts with C_2

Revenue from Contracts with Customers - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Order shipments, description	A majority of the Company’s revenue is short cycle in nature with shipments within one year from order.
Payment terms, description	The Company's payment terms generally range between 30 to 90 days.
Refund liability	$ 310,000		$ 248,000
Contract assets	0		0
Contract with customer liability, revenue recognized	600,000	$ 500,000
Accrued Liabilities [Member]
Disaggregation Of Revenue [Line Items]
Refund liability	300,000		200,000
Contract liability	1,000,000		900,000
Inventories [Member]
Disaggregation Of Revenue [Line Items]
Product return asset	$ 100,000		$ 100,000

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Additional Information1 (Detail)	Jun. 30, 2022
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-07-01
Disaggregation Of Revenue [Line Items]
Period for performance obligation to provide software maintenance and support	1 year