PC Tel (PCTI) 10-Q 10 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Aug. 10, 2020
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
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		18,640,295
Document Quarterly Report	true
Document Transition Report	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 6,458	$ 7,094
Short-term investment securities	29,356	32,556
Accounts receivable, net of allowances of $115 and $104 at June 30, 2020 and December 31, 2019, respectively	15,414	17,380
Inventories, net	11,017	11,935
Prepaid expenses and other assets	1,320	1,842
Total current assets	63,565	70,807
Property and equipment, net	12,488	11,985
Long-term investment securities	3,742	0
Goodwill	3,332	3,332
Intangible assets, net	0	144
Other noncurrent assets	2,579	2,969
TOTAL ASSETS	85,706	89,237
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	4,242	3,190
Accrued liabilities	6,336	9,382
Total current liabilities	10,578	12,572
Long-term liabilities	4,449	3,315
Total liabilities	15,027	15,887
Stockholders’ equity:
Common stock, $0.001 par value, 50,000,000 and 100,000,000 shares authorized at june 30, 2020 and december 31, 2019, respectively, and 18,640,295 and 18,611,289 shares issued and outstanding at june 30, 2020 and december 31, 2019, respectively	19	19
Additional paid-in capital	130,853	133,954
Accumulated deficit	(59,801)	(60,305)
Accumulated other comprehensive loss	(392)	(318)
Total stockholders’ equity	70,679	73,350
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 85,706	$ 89,237

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Allowance for accounts receivable	$ 115	$ 104
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	100,000,000
Common stock, shares issued	18,640,295	18,611,289
Common stock, shares outstanding	18,640,295	18,611,289

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
REVENUES	$ 19,842	$ 23,499	$ 37,348	$ 44,090
COST OF REVENUES	10,321	12,805	19,612	24,737
GROSS PROFIT	9,521	10,694	17,736	19,353
OPERATING EXPENSES:
Research and development	3,070	3,006	6,099	6,009
Sales and marketing	2,397	3,097	5,539	5,895
General and administrative	2,945	3,914	5,747	7,167
Amortization of intangible assets	0	48	33	122
Restructuring expenses	11	0	98	0
Total operating expenses	8,423	10,065	17,516	19,193
OPERATING INCOME	1,098	629	220	160
Other income, net	102	320	300	481
INCOME BEFORE INCOME TAXES	1,200	949	520	641
Expense for income taxes	8	8	16	17
NET INCOME	$ 1,192	$ 941	$ 504	$ 624
Net Income per Share:
Basic	$ 0.07	$ 0.05	$ 0.03	$ 0.04
Diluted	$ 0.07	$ 0.05	$ 0.03	$ 0.03
Weighted Average Shares:
Basic	18,159,029	17,827,759	18,179,906	17,724,995
Diluted	18,213,617	17,934,309	18,351,880	17,915,807
Cash dividend per share	$ 0.055	$ 0.055	$ 0.110	$ 0.110

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME	$ 1,192	$ 941	$ 504	$ 624
OTHER COMPREHENSIVE INCOME (LOSS):
Foreign currency translation adjustments	15	(148)	(74)	5
COMPREHENSIVE INCOME	$ 1,207	$ 793	$ 430	$ 629

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid - In Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
BALANCE at beginning of year at Dec. 31, 2018	$ 69,606	$ 18	$ 133,859	$ (64,055)	$ (216)
Stock-based compensation expense	2,328	0	2,328	0	0
Issuance of shares for stock purchase plans and stock options	338	0	338	0	0
Cancellation of shares for payment of withholding tax	(743)	0	(743)	0	0
Dividends paid	(2,029)	0	(2,029)	0	0
Net income	624	0	0	624	0
Change in cumulative translation adjustment, net	5	0	0	0	5
BALANCE at end of year at Jun. 30, 2019	70,129	18	133,753	(63,431)	(211)
BALANCE at beginning of year at Mar. 31, 2019	68,903	18	133,320	(64,372)	(63)
Stock-based compensation expense	1,446	0	1,446	0	0
Dividends paid	(1,013)	0	(1,013)	0	0
Net income	941	0	0	941	0
Change in cumulative translation adjustment, net	(148)	0	0	0	(148)
BALANCE at end of year at Jun. 30, 2019	70,129	18	133,753	(63,431)	(211)
BALANCE at beginning of year at Dec. 31, 2019	73,350	19	133,954	(60,305)	(318)
Stock-based compensation expense	1,563	1	1,562	0	0
Issuance of shares for stock purchase plans and stock options	496	0	496	0	0
Cancellation of shares for payment of withholding tax	(1,106)	0	(1,106)	0	0
Repurchase of common stock	(2,000)	(1)	(1,999)	0	0
Dividends paid	(2,054)	0	(2,054)	0	0
Net income	504	0	0	504	0
Change in cumulative translation adjustment, net	(74)	0	0	0	(74)
BALANCE at end of year at Jun. 30, 2020	70,679	19	130,853	(59,801)	(392)
BALANCE at beginning of year at Mar. 31, 2020	69,056	18	130,438	(60,993)	(407)
Stock-based compensation expense	1,001	1	1,000	0	0
Issuance of shares for stock purchase plans and stock options	437	0	437	0	0
Dividends paid	(1,022)	0	(1,022)	0	0
Net income	1,192	0	0	1,192	0
Change in cumulative translation adjustment, net	15	0	0	0	15
BALANCE at end of year at Jun. 30, 2020	$ 70,679	$ 19	$ 130,853	$ (59,801)	$ (392)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) (unaudited) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement Of Stockholders Equity [Abstract]
Cash dividend per share	$ 0.055	$ 0.055	$ 0.110	$ 0.110

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating Activities:
Net income	$ 504	$ 624
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,502	1,425
Intangible asset amortization	144	455
Stock-based compensation	1,563	2,328
Loss on disposal of property and equipment	7	30
Restructuring costs	(28)	(14)
Bad debt (recoveries) provision	(110)	11
Changes in operating assets and liabilities:
Accounts receivable	2,065	(234)
Inventories	882	(268)
Prepaid expenses and other assets	871	354
Accounts payable	810	(231)
Income taxes payable	16	(46)
Other accrued liabilities	(1,167)	675
Deferred revenue	19	(40)
Net cash provided by operating activities	7,078	5,069
Investing Activities:
Capital expenditures	(2,418)	(986)
Purchases of investments	(26,323)	(26,823)
Redemptions/maturities of short-term investments	25,781	24,999
Net cash used in investing activities	(2,960)	(2,810)
Financing Activities:
Proceeds from issuance of common stock	496	338
Proceeds from Paycheck Protection Program Loan	3,500	0
Repayment of Paycheck Protection Program Loan	(3,500)	0
Payment of withholding tax on stock-based compensation	(1,106)	(743)
Principle payments on finance leases	(41)	(52)
Purchase of common stock from repurchase program	(2,000)	0
Cash dividends	(2,054)	(2,029)
Net cash used in financing activities	(4,705)	(2,486)
Net decrease in cash and cash equivalents	(587)	(227)
Effect of exchange rate changes on cash	(49)	(36)
Cash and cash equivalents, beginning of period	7,094	4,329
Cash and Cash Equivalents, End of Period	$ 6,458	$ 4,066

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2020
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 measures that the Company has taken in response to the macroeconomic impacts of the novel coronavirus (“COVID-19”). 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”, the “Company”, “we”, “our”, and “us”) is a leading global supplier of wireless network antenna and test solutions. We design and manufacture precision antennas and provide test & measurement products that improve the performance of wireless networks globally. PCTEL products address three market segments: Enterprise Wireless, Intelligent Transportation, and Industrial Internet of Things (“IoT”). PCTEL antennas are deployed in small cells, enterprise Wi-Fi access points, fleet management and transit systems, and in network equipment and devices for the Industrial IoT. PCTEL test & measurement tools improve the performance of wireless networks globally. Mobile operators, neutral hosts, and network equipment manufacturers rely on PCTEL products to analyze, design, and optimize next generation wireless networks. Our strength is solving complex network engineering problems for our customers through our products and solutions. To this end, we are constantly innovating and improving antenna and wireless testing products and capabilities in order to capture the opportunities and meet the challenges of the rapidly evolving wireless industry. We focus on engineering, research and development to maintain and expand our competitiveness. PCTEL was incorporated in California in 1994 and reincorporated in Delaware in 1998. Our principal executive offices are located at 471 Brighton Drive, Bloomingdale, Illinois 60108. Our telephone number at that address is (630) 372-6800 and our website is www.pctel.com. Additional information about our Company can be obtained on our website; however, the information within, or that can be accessed through, our website, is not part of this Quarterly Report on Form 10-Q. Product Lines Antenna Products PCTEL designs and manufactures precision antennas and we offer in-house wireless product development for our customers, including design, testing, radio integration, and manufacturing capabilities. PCTEL antennas are deployed in small cells, enterprise Wi-Fi access points, fleet management and transit systems, and in equipment and devices for the Industrial IoT. Revenue growth in these markets is driven by the increased use and complexity of wireless communications. Consistent with our mission of solving complex network engineering problems and in order to compete effectively in the antenna market, PCTEL maintains expertise in the following areas: radio frequency engineering, wireless network engineering, mechanical engineering, mobile antenna design, manufacturing, and product quality and testing. We seek out product applications that command a premium for product design and performance, and we avoid commodity markets. Our antennas are primarily sold to original equipment manufacturer (“OEM”) providers, where they are designed into the customer’s solution. Test & Measurement Products PCTEL provides radio frequency (“RF”) test & measurement tools that improve the performance of wireless networks globally, with a focus on LTE, public safety, and 5G technologies. Network operators, neutral hosts, and equipment manufacturers rely on our scanning receivers and testing solutions to analyze, design, and optimize next generation wireless networks. Revenue growth in this market is driven by the implementation and roll out of new wireless technology standards (i.e., 3G to 4G; 4G to 5G). Consistent with our mission of solving complex network engineering problems and in order to compete effectively in the RF test & measurement market, PCTEL maintains expertise in the following areas: radio frequency engineering, DSP engineering, wireless network engineering, mechanical engineering, manufacturing, and product quality and testing. Our test & measurement equipment is sold directly to wireless carriers or to OEMs who integrate our products into their solutions, which are then sold to wireless carriers. 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, 2020 and December 31, 2019, and the condensed consolidated statements of operations, statements of comprehensive loss, the condensed consolidated statements of stockholders’ equity and statements of cash flows for the three and six months ended June 30, 2020 and 2019, 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, 2019 is derived from the audited financial statements as of December 31, 2019. 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 2019 Form 10-K. There were no material changes in the Company’s significant accounting policies during the three and six months ended June 30, 2020. In addition, the Company reaffirms the use of estimates in the preparation of the financial statements as set forth in the 2019 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 2019 Form 10-K. The results of operations for the period ended June 30, 2020 may not be indicative of the results for the period ending December 31, 2020. Foreign Operations The Company is exposed to foreign currency fluctuations due to its foreign operations and because products are sold internationally. The functional currency for the Company’s China operations is predominantly the applicable local currency. Accounts of foreign operations are translated into U.S. dollars using the exchange rate in effect at the applicable balance sheet date for assets and liabilities and average monthly rates prevailing during the period for revenue and expense accounts. Adjustments resulting from translation are included in accumulated other comprehensive loss, a separate component of stockholders’ equity. Gains and losses resulting from other 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, 2020, approximately 3% of revenues and 18% of expenses were transacted in foreign currencies as compared to 7% and 29% for the six months ended June 30, 2019. Net foreign exchange gains (losses) resulting from foreign currency transactions included in other income, net were $(18) and $85 for the three months ended June 30, 2020 and 2019, respectively. Net foreign exchange gains resulting from foreign currency transactions included in other income, net was $19 and $28 for the six months ended June 30, 2020 and 2019, respectively. Recent Accounting Pronouncements In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (“Topic 842”), which amended existing guidance to require lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by long-term leases and to disclose additional quantitative and qualitative information about leasing arrangements. This ASU also provides clarifications surrounding the presentation of the effects of leases in the statement of operations and statement of cash flows. The Company adopted Topic 842 on January 1, 2019 using the updated modified transition method. Upon adoption on January 1, 2019, the Company recorded right-of-use assets of $1.5 million and lease liabilities of $1.6 million. The Company elected the practical expedient to account for each separate lease component of a contract and its associated non-lease components as a single lease component, thus causing all fixed payments to be capitalized. The Company also elected the package of practical expedients permitted within the new standard, which among other things, allows the Company to carry forward historical lease classifications. See Note 10 for additional information and disclosures required by this new standard. In June 2016, the FASB issued Accounting Standards Update No. 2016-13, Financial Instruments - Credit Losses (“ASU 2016-13”), which modifies the measurement of expected credit losses of certain financial instruments. The Company adopted ASU 2016-13 on January 1, 2020 using a modified retrospective approach. Adoption of ASU 2016-13 did not have a material impact on the Company’s consolidated financial statements but required changes to its process of estimating expected credit losses. See Note 4 and Note 6 for further information on the Company’s allowance for credit losses. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendments in this update. The Company adopted ASU 2018-15 on January 1, 2020, and it did not have an impact on its consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement.” ASU 2018-13 modifies the disclosure requirements on fair value measurements. The Company adopted ASU 2018-13 on January 1, 2020, and it did not have a material impact on its consolidated financial statements. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies income tax accounting in various areas including, but not limited to, the accounting for hybrid tax regimes, tax implications related to business combinations, and interim period accounting for enacted changes in tax law, along with some codification improvements. The changes related to this update are effective for fiscal years beginning after December 15, 2020, with early adoption permitted. Certain changes in the standard require retrospective or modified retrospective adoption, while other changes must be adopted prospectively. The Company is currently evaluating ASU 2019-12 and its impact on the consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, 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 is currently evaluating the impact of Topic 848 on the consolidated financial statements.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2020
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 is a financial liability with a carrying value that approximates fair value due to the short-term nature of these liabilities.

Income per Share

Income per Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Income per Share	3. 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, 2020 2019 2020 2019 Basic Income Per Share computation: Numerator: Net income $ 1,192 $ 941 $ 504 $ 624 Denominator: Weighted shares outstanding - basic 18,159,029 17,827,759 18,179,906 17,724,995 Net income per common share - basic Net income $ 0.07 $ 0.05 $ 0.03 $ 0.04 Diluted Income Per Share computation: Denominator: Weighted shares outstanding - basic 18,159,029 17,827,759 18,179,906 17,724,995 Restricted shares subject to vesting 44,821 31,667 147,116 80,331 Performance related awards 8,208 74,883 16,416 110,412 Common stock option grants 1,559 0 8,442 69 Weighted shares outstanding - diluted 18,213,617 17,934,309 18,351,880 17,915,807 Net income per common share - diluted Net income $ 0.07 $ 0.05 $ 0.03 $ 0.03

Cash, Cash Equivalents and Inve

Cash, Cash Equivalents and Investments	6 Months Ended
	Jun. 30, 2020
Cash And Cash Equivalents [Abstract]
Cash, Cash Equivalents and Investments	4. Cash, Cash Equivalents and Investments The Company’s cash, cash equivalents, and investments consisted of the following: June 30, December 31, 2020 2019 Cash $ 4,234 $ 5,604 Cash equivalents 2,224 1,490 Short-term investments 29,356 32,556 Long-term investments 3,742 0 Total $ 39,556 $ 39,650 Cash and Cash Equivalents At June 30, 2020 and December 31, 2019, cash and cash equivalents included bank balances and investments with original maturities less than 90 days The Company had $1.1 million and $2.1 million of cash and cash equivalents in bank accounts in China at June 30, 2020 and December 31, 2019, respectively. The Company’s cash in its China bank accounts is not insured. As of June 30, 2020, the Company has no intentions of repatriating the cash in its foreign bank accounts in China. If the Company decides to repatriate the cash these China 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, 2020 and December 31, 2019, the Company’s investments consisted of corporate bonds with ratings at the purchase date of A or higher and certificates of deposit. All the investments at June 30, 2020 and December 31, 2019 were classified as held-to-maturity. The bonds and certificates of deposit classified as short-term investments have original maturities greater than 90 days and mature within one year and 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. Effective January 1, 2020, the Company adopted ASU 2016-13. This ASU replaces the incurred loss impairment model with an expected loss impairment model for financial instruments, including short-term investments. The amendment requires entities to consider forward-looking information to estimate expected credit losses. 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 the historical loss data, the bond ratings, as well as and current and future economic conditions. The Company did not record an estimate for credit losses upon adoption of ASU 2016-13 on January 1, 2020 or during the six months ended June 30, 2020. Cash equivalents and investments were as follows at June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 Level 1 Level 2 Total Level 1 Level 2 Total Cash equivalents: Corporate bonds $ 0 $ 0 $ 0 $ 0 $ 708 $ 708 Money market funds 2,224 0 2,224 782 0 782 Total Cash Equivalents $ 2,224 $ 0 $ 2,224 $ 782 $ 708 $ 1,490 Short-Term Investments: Corporate bonds $ 0 $ 25,782 $ 25,782 $ 0 $ 28,710 $ 28,710 Certificates of deposit 3,574 0 3,574 3,846 0 3,846 Total Short-Term Investments $ 3,574 $ 25,782 $ 29,356 $ 3,846 $ 28,710 $ 32,556 Long-Term Investments: Corporate bonds $ 0 $ 3,232 $ 3,232 $ 0 $ 0 $ 0 Certificates of deposit 510 0 510 0 0 0 Total Long-Term Investments $ 510 $ 3,232 $ 3,742 $ 0 $ 0 $ 0 Cash equivalents and Investments - book value $ 6,308 $ 29,014 $ 35,322 $ 4,628 $ 29,418 $ 34,046 Unrealized gains (losses) $ (1 ) $ 13 $ 12 $ 1 $ (11 ) $ (10 ) Cash equivalents and Investments - fair value $ 6,307 $ 29,027 $ 35,334 $ 4,629 $ 29,407 $ 34,036 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 2 investments, the Company uses quoted prices of similar assets in active markets. The fair values in the table above reflect net unrealized gains of $12 at June 30, 2020, and net unrealized losses of $10 at December 31, 2019.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	5. Goodwill and Intangible Assets Goodwill There were no changes to the goodwill valued at $3.3 million during the three and six months ended June 30, 2020. 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, forecasts and the amount of headroom in the 2019 impairment test. There were no triggering events during the period ended June 30, 2020. The Company will continue to monitor goodwill for impairment going forward. Intangible Assets The Company amortizes intangible assets with finite lives on a straight-line basis over the estimated useful lives, which range from one to six 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, 2020 2019 2020 2019 Cost of revenues $ 0 $ 166 $ 111 $ 333 Operating expenses 0 48 33 122 Total $ 0 $ 214 $ 144 $ 455 The summary of other intangible assets, net is as follows: June 30, 2020 December 31, 2019 Accumulated Net Book Accumulated Net Book Cost Amortization Value Cost Amortization Value Customer contracts and relationships $ 16,880 $ 16,880 $ 0 $ 16,880 $ 16,880 $ 0 Patents and technology 10,114 10,114 0 10,114 10,003 111 Trademarks and trade names 4,834 4,834 0 4,834 4,801 33 Other 2,506 2,506 0 2,506 2,506 0 Total $ 34,334 $ 34,334 $ 0 $ 34,334 $ 34,190 $ 144 The $0.1 million decrease in the net book value of intangible assets at June 30, 2020 compared to December 31, 2019 relates to amortization expense for the six months ended June 30, 2020. 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 to 6 years 5.1 Trademarks and trade names 5 to 6 years 5.6 Other 1 to 6 years 3.0 The Company’s intangible assets were fully amortized as of February 2020. The amortization expense for 2020 is as follows: Fiscal Year Amount 2020 $ 144

Balance Sheet Information

Balance Sheet Information	6 Months Ended
	Jun. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Balance Sheet Information	6. 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 allowances 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, 2020 December 31, 2019 Credit loss provision $ 72 $ 56 Credit allowances 43 48 Total allowances $ 115 $ 104 Effective January 1, 2020, the Company adopted ASU 2016-13. This ASU replaces the incurred loss impairment model with an expected loss impairment model for financial instruments, including accounts receivable. The amendment requires entities to consider forward-looking information to estimate expected credit losses. The Company did not record an adjustment upon adoption of ASU 2016-13. The Company is exposed to credit losses primarily through the sale of products. The Company’s expected loss methodology for accounts receivable is developed using 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 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 considered the current and expected future economic and market conditions surrounding the COVID-19 pandemic and determined that the estimate of credit losses was not significantly impacted. However, the Company has adjusted terms for a few of its customers and it may experience delays with collections due to the COVID-19 pandemic. The Company’s allowance for credit losses was $0.1 million at June 30, 2020 and at December 31, 2019. During the three months ended June 30, 2020, the Company received $0.1 million pursuant to a settlement for a customer accounts receivable balance that was written off in 2018. The following table summarizes the allowance for credit losses activity during the six months ended June 30, 2020: Balance at December 31, 2019 $ 56 Current period benefit for credit losses (111 ) Recovery of amounts previously written off 127 Balance at June 30, 2020 $ 72 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, 2020 and December 31, 2019 were composed of raw materials, work-in-process and finished goods. The Company had consigned inventory with customers of $0.4 million and $0.3 million at June 30, 2020 and December 31, 2019, respectively. 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 the identification of inventory where the carrying value is above net realizable value. The allowance for inventory losses was $3.8 million and $3.4 million at June 30, 2020 and at December 31, 2019, respectively. Inventories, net consisted of the following: June 30, 2020 December 31, 2019 Raw materials $ 6,418 $ 6,502 Work-in-process 1,027 913 Finished goods 3,572 4,520 Inventories, net $ 11,017 $ 11,935 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 30 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 sales 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, 2020 December 31, 2019 Building $ 6,442 $ 6,389 Computers and office equipment 9,880 9,847 Manufacturing and test equipment 14,892 14,192 Furniture and fixtures 1,432 1,314 Leasehold improvements 2,991 2,850 Motor vehicles 20 20 Total property and equipment 35,657 34,612 Less: Accumulated depreciation and amortization (24,939 ) (24,397 ) Land 1,770 1,770 Property and equipment, net $ 12,488 $ 11,985 Depreciation and amortization expense were approximately $0.8 million and $0.7 million for the three months ended June 30, 2020 and 2019, respectively. Depreciation and amortization expense were approximately $1.5 million and $1.4 million for the six months ended June 30, 2020 and 2019, respectively. During the six months ended June 30, 2020, the Company disposed of $0.8 million of fully depreciated property and equipment. Amortization for finance leases is included in depreciation and amortization expense. See Note 10 for information related to finance leases. Liabilities Accrued liabilities consisted of the following: June 30, 2020 December 31, 2019 Inventory receipts $ 2,407 $ 1,431 Paid time off 1,043 855 Payroll and other employee benefits 894 1,605 Professional fees and contractors 295 246 Warranties 268 444 Deferred revenues 259 241 Income and sales taxes 221 133 Employee stock purchase plan 203 228 Operating leases 105 282 Customer refunds for estimated returns 96 147 Real estate taxes 80 152 Finance leases 73 77 Restructuring 16 45 Short-term incentive plan 0 2,553 Leasehold improvements 0 702 Other 376 241 Total $ 6,336 $ 9,382 Long-term liabilities consisted of the following: June 30, 2020 December 31, 2019 Operating leases $ 4,072 $ 3,021 Deferred payroll taxes 138 0 Finance leases 128 164 Deferred revenue 100 119 Other 11 11 Total $ 4,449 $ 3,315

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	7. Stock-Based Compensation The condensed consolidated statements of operations include $1.0 million and $1.4 million of stock compensation expense for the three months ended June 30, 2020 and 2019, respectively. The condensed consolidated statements of operations include $1.6 million and $2.3 million of stock compensation expense for the six months ended June 30, 2020 and 2019, respectively. T The stock-based compensation expense by type is as follows: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Service-based awards $ 865 $ 890 $ 1,287 $ 1,470 Performance-based awards - short-term incentive plan 0 440 0 629 Performance-based awards - long-term incentive plan 77 57 155 114 Employee stock purchase plan 59 59 121 114 Stock options 0 0 0 1 Total $ 1,001 $ 1,446 $ 1,563 $ 2,328 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, 2020 2019 2020 2019 Cost of revenues $ 74 $ 102 $ 146 $ 205 Research and development 145 177 282 349 Sales and marketing 164 183 314 363 General and administrative 618 984 821 1,411 Total $ 1,001 $ 1,446 $ 1,563 $ 2,328 The following table presents a summary of the remaining unrecognized share-based compensation expense related to outstanding share-based awards as of June 30, 2020: Award Type Remaining Unrecognized Compensation Expense Weighted Average Life (Years) Service-based awards $ 2,237 1.6 Performance-based awards $ 1,051 2.5 Stock options $ 1 0.6 Service-Based Awards Restricted Stock The Company grants service-based stock awards to employees under its long-term incentive plan, the PCTEL, Inc. 2019 Stock Incentive Plan (“LTIP”). For the annual awards granted to executives and key managers in the three months ended March 31, 2020 and 2019, respectively, the awards were comprised one-third of service-based restricted awards and two-thirds of performance-based awards. 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. The following table summarizes service-based restricted stock activity for the six months ended June 30, 2020: Shares Weighted Average Fair Value Unvested Restricted Stock Awards - December 31, 2019 477,187 $ 6.11 Shares awarded 201,233 7.91 Shares vested (233,573 ) 6.21 Shares cancelled (3,000 ) 5.92 Unvested Restricted Stock Awards - June 30, 2020 441,847 $ 6.88 In February 2020, the Company issued to employees 153,694 service-based restricted stock awards under the LTIP that vest in three substantially equal annual increments commencing in 2021. At the beginning of the second quarter 2020, as part of our efforts to reduce expenses and conserve cash, the Company reduced the salary of each executive and key manager by 10% and in connection therewith issued restricted stock to such employee equal to 5% of his/her salary. In April 2020, the Company issued to executive employees 47,539 service-based restricted stock awards. The restricted stock was granted under the LTIP and has a one-year vesting period. The intrinsic value of service-based restricted shares that vested during the six months ended June 30, 2020 and 2019 was $1.9 million and $2.1 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, 2020: Shares Weighted Average Fair Value Unvested Restricted Stock Units - December 31, 2019 8,117 $ 5.83 Units awarded 6,448 7.48 Units vested/Shares awarded (5,482 ) 5.80 Unvested Restricted Stock Units - June 30, 2020 9,083 $ 7.02 The intrinsic value of service-based restricted stock units that vested and were issued as shares during the six months ended June 30, 2020 and 2019 was $44 and $30, respectively. Stock Options The Company may grant new 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 typically over a period of four years. 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. Under the LTIP, new options can have a ten-year life. The stock options outstanding at June 30, 2020 have a seven-year A summary of the Company’s stock option activity for the six months ended June 30, 2020 is as follows: Options Outstanding Weighted Average Exercise Price Outstanding at December 31, 2019 150,246 $ 7.11 Options exercised (61,767 ) 7.13 Options forfeited (188 ) 5.00 Options cancelled/expired (72,041 ) 7.23 Outstanding at June 30, 2020 16,250 $ 6.54 Exercisable at June 30, 2020 14,867 $ 6.57 During the six months ended June 30, 2020, the Company received proceeds of $0.1 million from the exercise of options for 9,412 shares and issued 10,194 shares for the exercise of 52,355 options. The intrinsic value of the options exercised was $0.1 million. There were no exercises for the six months ended June 30, 2019. The Company did not grant stock options during the six months ended June 30, 2020 or 2019. The range of exercise prices for options outstanding and exercisable at June 30, 2020, was $5.06 to $8.21. The following table summarizes information about stock options outstanding under all stock option plans: Options Outstanding Options Exercisable Range of Exercise Prices Number Outstanding Weighted Average Contractual Life (Years) Weighted- Average Exercise Price Number Exercisable Weighted Average Exercise Price $ 5.06 7,000 3.21 $5.06 6,457 $5.06 $ 6.98 - $ 7.55 4,750 2.67 7.22 3,910 7.27 $ 8.09 - $ 8.21 4,500 1.42 8.12 4,500 8.12 $ 5.06 - $ 8.21 16,250 2.56 $6.54 14,867 $6.57 The weighted average contractual life and intrinsic value of options outstanding and options exercisable at June 30, 2020, was the following: Weighted Average Contractual Life (years) Intrinsic Value Options Outstanding 2.56 $ 11 Options Exercisable 2.42 $ 10 The intrinsic value is based on the share price of $6.68 at June 30, 2020. There were no stock options granted during the six months ended June 30, 2020. For outstanding stock options, the Company calculated the fair value of each option grant 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 Incentive compensation earned by executives and key managers under the Company’s 2020 Short-Term Incentive Plan (“STIP”) will be settled 50% in cash and 50% in shares of the Company’s stock as was the case with the 2019 STIP. Shares valued at $1.2 million earned pursuant to the 2019 STIP were issued to executives and key managers during the first quarter 2020. For the 2019 STIP, the Company issued 129,285 shares net of shares withheld for taxes. 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: At Target Awards Weighted Average Fair Value Unvested Performance Awards - December 31, 2019 171,437 $ 5.27 Awards granted 145,289 8.70 Unvested Performance Awards - June 30, 2020 316,726 $ 6.84 The Company granted performance awards under its long-term incentive plan to executives and key managers in February 2020 (“2020 LTIP”) and in February 2019 (“2019 LTIP”). Under both the 2020 LTIP and 2019 LTIP, 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 under the 2020 LTIP and 2019 LTIP will be fully vested shares. The performance period for the 2020 LTIP is from January 1, 2020 through December 31, 2022. At target, the total fair market value of the award was $1.3 million based on the share price of $8.70 on the grant date. On the award date, the aggregate number of shares that could be earned at target was 145,289 and the maximum number of aggregate shares that could be earned was 254,256. The performance period for the 2019 LTIP is from January 1, 2019 through December 31, 2021. At target, the total fair market value of the award was $0.9 million based on the share price of $5.27 on the grant date. On the award date, the aggregate number of shares that could be earned at target was 174,117 and the maximum number of aggregate shares that could be earned was 300,015. During the year ended December 31, 2019, the target and maximum shares that can be earned declined by 2,680 and 4,690, respectively due to employee terminations. 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. In May 2019, the stockholders approved the PCTEL, Inc. 2019 Employee Stock Purchase Plan. The 2019 ESPP changed the start of the six-month offering periods to April and October from February and August. Accordingly, no shares were issued during the three months ended March 31, 2020. During the three months ended June 30, 2020, the Company received proceeds of $0.4 million from the issuance of 77,297 shares under the ESPP. The Company received proceeds of $0.3 million from the issuance of 95,376 shares under the ESPP in February 2019. 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 2020 2019 Dividend yield 4.1 % 4.1 % Risk-free interest rate 0.1 % 2.5 % Expected volatility 44 % 34 % 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 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 upon issuance. In addition, new directors receive a one-time grant that vests over three years. In the second quarter 2020, the Company issued 60,998 shares with a fair value of $0.4 million to directors for their annual retainer and committee service. The shares vest immediately upon issuance. The following table summarizes the director awards activity: Shares Weighted Average Fair Value Outstanding - December 31, 2019 4,831 $ 6.90 Shares awarded 60,998 6.59 Shares vested (63,413 ) 6.60 Outstanding - June 30, 2020 2,416 $ 6.90 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 $1.1 million and $0.7 million during the six months ended June 30, 2020 and 2019, respectively. Stock Repurchases On November 6, 2019, the Board of Directors approved a share repurchase program, which was reauthorized on March 10, 2020 pursuant to which the Company was authorized to repurchase up to $7.0 million of its common stock through the end of 2020. The Company spent $2.0 million to repurchase 375,046 shares at an average price of $5.36 during the three months ended March 31, 2020. The Company cancelled the repurchased shares. Due to uncertainties related to the COVID-19 pandemic and to protect the Company’s cash position, on April 1, 2020 the Board of Directors approved the termination of the stock repurchase program. Authorized Shares On May 29, 2020, the Company filed a Certificate of Amendment to its Amended and Restated Certificate of Incorporation (i) changing the Company’s name from “PC-Tel, Inc.” to “PCTEL, Inc.” and (ii) decreasing the number of authorized shares of common stock from 100,000,000 shares to 50,000,000 shares.

Benefit Plans

Benefit Plans	6 Months Ended
	Jun. 30, 2020
Compensation And Retirement Disclosure [Abstract]
Benefit Plans	8. 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, 2020 and 2019, respectively, were as follows: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 PCTEL, Inc. 401(k) profit sharing plan - US employees $ 158 $ 162 $ 396 $ 318 Defined contribution plans - foreign employees 9 112 32 245 Total $ 167 $ 274 $ 428 $ 563 Contributions for foreign employees were lower for the six months ended June 30, 2020 because employer contributions to Chinese government sponsored retirement programs were not required for the first six months of fiscal 2020.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2020
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	9. Commitments and Contingencies China Restructuring On August 7, 2019, the Board of Directors approved a transition plan for the Company’s China manufacturing operations. In order to optimize the cost structure of the antenna product line, reduce fixed costs in China and increase the Company’s competitiveness, the Company is transitioning high-volume manufacturing from its Tianjin, China facility to contract manufacturers in China and elsewhere. The Company incurred restructuring expenses during the six months ended June 30, 2020 of $0.1 million for employee severance related to the separation of 10 employees. The severance payments for these employees were paid in April and May 2020. Commencing in the third quarter 2019 and through the second quarter 2020, the Company has separated 94 Tianjin employees and incurred total restructuring expense of $0.6 million for severance costs. During the remainder of 2020, the Company expects to reduce headcount in Tianjin by an additional 25 to 30 employees and estimates additional restructuring charges of approximately $0.3 million consisting of severance and other non-cash costs. Severance costs are paid from the Company’s cash in its China bank accounts. Lease Termination In 2016, the Company exited from its Colorado office in order to consolidate facility space and in the second quarter 2017 signed a sublease for the office space. The termination date for the lease and the sublease is October 2020. At June 30, 2020, the lease obligation for the Colorado office was $23 and the The following table summarizes the restructuring activity during the six months ended June 30, 2020 and the status of the reserves at June 30, 2020: Lease Severance Termination Total Balance at December 31, 2019 $ 12 $ 33 $ 45 Restructuring expense 98 0 98 Payments made (110 ) (70 ) (180 ) Payments received 0 53 53 Balance at June 30, 2020 $ 0 $ 16 $ 16 The restructuring liability is recorded in accrued liabilities on the condensed consolidated balance sheet at June 30, 2020 and December 31, 2019. 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 $0.1 million at June 30, 2020 and December 31, 2019, 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, 2020 and $0.4 million at June 30, 2019, 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, 2020 and 2019: Six Months Ended June 30, 2020 2019 Beginning balance $ 444 $ 339 Provisions for warranties $ 3 163 Consumption of reserves $ (179 ) (113 ) Ending balance $ 268 $ 389

Leases

Leases	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Leases	10. 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 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 six months ended June 30, 2020 and 2019, respectively, included the following components: Six Months Ended June 30, 2020 2019 Operating lease costs $ 410 $ 435 Short-term lease costs 27 51 Variable lease costs 2 12 Amortization of finance lease assets 41 53 Interest on finance lease liabilities 4 4 Total lease cost $ 484 $ 555 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, 2020: Year Operating Leases Finance Leases 2020 $ 73 $ 40 2021 472 73 2022 558 48 2023 569 32 2024 581 21 Thereafter 3,174 0 Total minimum payments required 5,427 214 Less: amount representing interest 1,250 13 Present value of net minimum lease payments 4,177 201 Less: current maturities of lease obligations (105 ) (73 ) Long-term lease obligations $ 4,072 $ 128 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, 2020: June 30, 2020 Weighted-average remaining lease term - finance leases 3.2 years Weighted-average remaining lease term - operating leases 10.0 years Weighted-average discount rate - finance leases 4.0% Weighted-average discount rate - operating leases 5.0% The table below presents supplemental cash flow information related to leases during the six months ended June 30, 2020 and 2019, respectively: Six Months Ended June 30, 2020 2019 Cash paid for (received) amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 229 $ 470 Operating cash flows from tenant improvements incentives from operating leases $ (1,004 ) $ 0 Operating cash flows for finance leases $ 4 $ 4 Financing cash flows for finance leases $ 41 $ 52 The following table summarizes the classification of ROU assets and lease liabilities as of June 30, 2020 and December 31, 2019: Leases Consolidated Balance Sheet Classification June 30, 2020 December 31, 2019 Assets: Operating right-of-use assets Other noncurrent assets $ 2,384 $ 2,696 Finance right-of-use assets Other noncurrent assets 193 234 Total leased assets $ 2,577 $ 2,930 Liabilities: Current Operating lease liabilities Accrued liabilities $ 105 $ 282 Finance lease liabilities Accrued liabilities 73 77 Noncurrent Operating lease liabilities Long-term liabilities 4,072 3,021 Finance lease liabilities Long-term liabilities 128 164 Total lease liabilities $ 4,378 $ 3,544 In January 2019, the Company entered into an eleven-year In July 2020, the Company signed a one-year .

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	11. Income Taxes The Company recorded income tax expense of $16 and $17 for the six months ended June 30, 2020 and 2019, respectively. The expense recorded for the six months ended June 30, 2020 and 2019 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 $13.5 million at June 30, 2020 and at December 31, 2019. The deferred tax assets consisted of domestic deferred tax assets of $13.0 million and foreign deferred tax assets of $0.5 million. The Company’s gross deferred tax assets consist of federal and state net operating losses (“NOLs”), credits, and timing differences. The Company’s federal NOLs generated in 2019 and 2018 have an infinite life, 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. 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 full valuation allowance against its deferred tax assets was $13.5 million at June 30, 2020 and December 31, 2019. The Company generated book and tax income during 2019, but incurred significant losses in 2018 resulting in a cumulative break-even position for the three years ended December 31, 2019. The Company recorded pretax book income for the six months ended June 30, 2020 and believes its financial outlook remains positive; however, the COVID-19 pandemic has created a high level of uncertainty. Because of difficulties with forecasting financial results historically, and with the uncertainties with the COVID-19 pandemic, the Company maintained a full valuation allowance on its deferred tax assets at June 30, 2020. 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 2017 and subsequent periods. The Company’s U.S. state tax returns remain subject to examination for 2015 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, 2020 and December 31, 2019, respectively . On March 27, 2020, the “Coronavirus Aid, Relief and Economic Security (CARES) Act” was signed into law. The 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 is deferring the employer portion of social security taxes and will apply for a refund of its Alternative Minimum Tax credit. For the six months ended June 30, 2020, the Company has deferred $0.1 million of payroll taxes. The payroll taxes will be deferred until the due dates of December 31, 2021 and December 31, 2022. The Company records a deferred tax asset for the payroll tax liability that is not deductible in 2020 for income tax purposes.

Product Line, Customer and Geog

Product Line, Customer and Geographic Information	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Product Line, Customer and Geographic Information	12. Product Line, Customer 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, 2020 and 2019: Three Months Ended June 30, 2020 Antenna Products Test & Measurement Corporate Total Revenues $ 13,910 $ 6,118 $ (186 ) $ 19,842 Gross Profit $ 4,973 $ 4,609 $ (61 ) $ 9,521 Gross Profit % 35.8 % 75.3 % NA 48.0 % Six Months Ended June 30, 2020 Antenna Products Test & Measurement Corporate Total Revenues $ 25,370 $ 12,201 $ (223 ) $ 37,348 Gross Profit $ 8,892 $ 8,905 $ (61 ) $ 17,736 Gross Profit % 35.0 % 73.0 % NA 47.5 % Three Months Ended June 30, 2019 Antenna Products Test & Measurement Corporate Total Revenues $ 16,014 $ 7,526 $ (41 ) $ 23,499 Gross Profit $ 5,569 $ 5,112 $ 13 $ 10,694 Gross Profit % 34.8 % 67.9 % NA 45.5 % Six Months Ended June 30, 2019 Antenna Products Test & Measurement Corporate Total Revenues $ 31,102 $ 13,062 $ (74 ) $ 44,090 Gross Profit $ 10,430 $ 8,898 $ 25 $ 19,353 Gross Profit % 33.5 % 68.1 % NA 43.9 % 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, 2020 and 2019, is as follows: Three Months Ended June 30, Six Months Ended June 30, Region 2020 2019 2020 2019 Europe, Middle East & Africa 16% 12% 16% 13% Asia Pacific 9% 11% 10% 11% Other Americas 2% 2% 2% 3% Total Foreign sales 27% 25% 28% 27% 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, 2020 and 2019: Three Months Ended June 30, Six Months Ended June 30, Revenues 2020 2019 2020 2019 Customer A 6% 15% 5% 10% The following table represents the customers that accounted for 10% or more of total trade accounts receivable: Trade Accounts Receivable June 30, 2020 December 31, 2019 Customer A 15% 15% Customer B 4% 11%

Revenue from Contracts with Cus

Revenue from Contracts with Customers	6 Months Ended
	Jun. 30, 2020
Revenue From Contract With Customer [Abstract]
Revenue from Contracts with Customers	13. Revenue from Contracts with Customers Under Topic 606, a contract with a customer is an agreement which 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 $0.1 million at June 30, 2020 and December 31, 2019 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, 2020 and December 31, 2019. There were no contract assets at June 30, 2020 or December 31, 2019. 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 $0.3 million and $0.2 million at June 30, 2020 and December 31, 2019, respectively. The Company recognized revenue of $0.4 million and $0.3 million during the three months ended June 30, 2020 and 2019, respectively, related to contract liabilities that existed at the beginning of the period. The Company recognized revenue of $0.4 million and $0.3 million during the six months ended June 30, 2020 and 2019, respectively, related to contract liabilities that existed at the beginning of the period.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	14. 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, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Nature of Operations	Nature of Operations PCTEL, Inc. (“PCTEL”, the “Company”, “we”, “our”, and “us”) is a leading global supplier of wireless network antenna and test solutions. We design and manufacture precision antennas and provide test & measurement products that improve the performance of wireless networks globally. PCTEL products address three market segments: Enterprise Wireless, Intelligent Transportation, and Industrial Internet of Things (“IoT”). PCTEL antennas are deployed in small cells, enterprise Wi-Fi access points, fleet management and transit systems, and in network equipment and devices for the Industrial IoT. PCTEL test & measurement tools improve the performance of wireless networks globally. Mobile operators, neutral hosts, and network equipment manufacturers rely on PCTEL products to analyze, design, and optimize next generation wireless networks. Our strength is solving complex network engineering problems for our customers through our products and solutions. To this end, we are constantly innovating and improving antenna and wireless testing products and capabilities in order to capture the opportunities and meet the challenges of the rapidly evolving wireless industry. We focus on engineering, research and development to maintain and expand our competitiveness. PCTEL was incorporated in California in 1994 and reincorporated in Delaware in 1998. Our principal executive offices are located at 471 Brighton Drive, Bloomingdale, Illinois 60108. Our telephone number at that address is (630) 372-6800 and our website is www.pctel.com. Additional information about our Company can be obtained on our website; however, the information within, or that can be accessed through, our website, is not part of this Quarterly Report on Form 10-Q.
Segment Reporting	Product Lines Antenna Products PCTEL designs and manufactures precision antennas and we offer in-house wireless product development for our customers, including design, testing, radio integration, and manufacturing capabilities. PCTEL antennas are deployed in small cells, enterprise Wi-Fi access points, fleet management and transit systems, and in equipment and devices for the Industrial IoT. Revenue growth in these markets is driven by the increased use and complexity of wireless communications. Consistent with our mission of solving complex network engineering problems and in order to compete effectively in the antenna market, PCTEL maintains expertise in the following areas: radio frequency engineering, wireless network engineering, mechanical engineering, mobile antenna design, manufacturing, and product quality and testing. We seek out product applications that command a premium for product design and performance, and we avoid commodity markets. Our antennas are primarily sold to original equipment manufacturer (“OEM”) providers, where they are designed into the customer’s solution. Test & Measurement Products PCTEL provides radio frequency (“RF”) test & measurement tools that improve the performance of wireless networks globally, with a focus on LTE, public safety, and 5G technologies. Network operators, neutral hosts, and equipment manufacturers rely on our scanning receivers and testing solutions to analyze, design, and optimize next generation wireless networks. Revenue growth in this market is driven by the implementation and roll out of new wireless technology standards (i.e., 3G to 4G; 4G to 5G). Consistent with our mission of solving complex network engineering problems and in order to compete effectively in the RF test & measurement market, PCTEL maintains expertise in the following areas: radio frequency engineering, DSP engineering, wireless network engineering, mechanical engineering, manufacturing, and product quality and testing. Our test & measurement equipment is sold directly to wireless carriers or to OEMs who integrate our products into their solutions, which are then sold to wireless carriers.
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, 2020 and December 31, 2019, and the condensed consolidated statements of operations, statements of comprehensive loss, the condensed consolidated statements of stockholders’ equity and statements of cash flows for the three and six months ended June 30, 2020 and 2019, 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, 2019 is derived from the audited financial statements as of December 31, 2019. 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 2019 Form 10-K. There were no material changes in the Company’s significant accounting policies during the three and six months ended June 30, 2020. In addition, the Company reaffirms the use of estimates in the preparation of the financial statements as set forth in the 2019 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 2019 Form 10-K. The results of operations for the period ended June 30, 2020 may not be indicative of the results for the period ending December 31, 2020.
Foreign Operations	Foreign Operations The Company is exposed to foreign currency fluctuations due to its foreign operations and because products are sold internationally. The functional currency for the Company’s China operations is predominantly the applicable local currency. Accounts of foreign operations are translated into U.S. dollars using the exchange rate in effect at the applicable balance sheet date for assets and liabilities and average monthly rates prevailing during the period for revenue and expense accounts. Adjustments resulting from translation are included in accumulated other comprehensive loss, a separate component of stockholders’ equity. Gains and losses resulting from other 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, 2020, approximately 3% of revenues and 18% of expenses were transacted in foreign currencies as compared to 7% and 29% for the six months ended June 30, 2019. Net foreign exchange gains (losses) resulting from foreign currency transactions included in other income, net were $(18) and $85 for the three months ended June 30, 2020 and 2019, respectively. Net foreign exchange gains resulting from foreign currency transactions included in other income, net was $19 and $28 for the six months ended June 30, 2020 and 2019, respectively.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (“Topic 842”), which amended existing guidance to require lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by long-term leases and to disclose additional quantitative and qualitative information about leasing arrangements. This ASU also provides clarifications surrounding the presentation of the effects of leases in the statement of operations and statement of cash flows. The Company adopted Topic 842 on January 1, 2019 using the updated modified transition method. Upon adoption on January 1, 2019, the Company recorded right-of-use assets of $1.5 million and lease liabilities of $1.6 million. The Company elected the practical expedient to account for each separate lease component of a contract and its associated non-lease components as a single lease component, thus causing all fixed payments to be capitalized. The Company also elected the package of practical expedients permitted within the new standard, which among other things, allows the Company to carry forward historical lease classifications. See Note 10 for additional information and disclosures required by this new standard. In June 2016, the FASB issued Accounting Standards Update No. 2016-13, Financial Instruments - Credit Losses (“ASU 2016-13”), which modifies the measurement of expected credit losses of certain financial instruments. The Company adopted ASU 2016-13 on January 1, 2020 using a modified retrospective approach. Adoption of ASU 2016-13 did not have a material impact on the Company’s consolidated financial statements but required changes to its process of estimating expected credit losses. See Note 4 and Note 6 for further information on the Company’s allowance for credit losses. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendments in this update. The Company adopted ASU 2018-15 on January 1, 2020, and it did not have an impact on its consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement.” ASU 2018-13 modifies the disclosure requirements on fair value measurements. The Company adopted ASU 2018-13 on January 1, 2020, and it did not have a material impact on its consolidated financial statements. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies income tax accounting in various areas including, but not limited to, the accounting for hybrid tax regimes, tax implications related to business combinations, and interim period accounting for enacted changes in tax law, along with some codification improvements. The changes related to this update are effective for fiscal years beginning after December 15, 2020, with early adoption permitted. Certain changes in the standard require retrospective or modified retrospective adoption, while other changes must be adopted prospectively. The Company is currently evaluating ASU 2019-12 and its impact on the consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, 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 is currently evaluating the impact of Topic 848 on the consolidated financial statements.

Income per Share (Tables)

Income per Share (Tables)	6 Months Ended
	Jun. 30, 2020
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, 2020 2019 2020 2019 Basic Income Per Share computation: Numerator: Net income $ 1,192 $ 941 $ 504 $ 624 Denominator: Weighted shares outstanding - basic 18,159,029 17,827,759 18,179,906 17,724,995 Net income per common share - basic Net income $ 0.07 $ 0.05 $ 0.03 $ 0.04 Diluted Income Per Share computation: Denominator: Weighted shares outstanding - basic 18,159,029 17,827,759 18,179,906 17,724,995 Restricted shares subject to vesting 44,821 31,667 147,116 80,331 Performance related awards 8,208 74,883 16,416 110,412 Common stock option grants 1,559 0 8,442 69 Weighted shares outstanding - diluted 18,213,617 17,934,309 18,351,880 17,915,807 Net income per common share - diluted Net income $ 0.07 $ 0.05 $ 0.03 $ 0.03

Cash, Cash Equivalents and In_2

Cash, Cash Equivalents and Investments (Tables)	6 Months Ended
	Jun. 30, 2020
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, 2020 2019 Cash $ 4,234 $ 5,604 Cash equivalents 2,224 1,490 Short-term investments 29,356 32,556 Long-term investments 3,742 0 Total $ 39,556 $ 39,650
Cash Equivalents and Investments	Cash equivalents and investments were as follows at June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 Level 1 Level 2 Total Level 1 Level 2 Total Cash equivalents: Corporate bonds $ 0 $ 0 $ 0 $ 0 $ 708 $ 708 Money market funds 2,224 0 2,224 782 0 782 Total Cash Equivalents $ 2,224 $ 0 $ 2,224 $ 782 $ 708 $ 1,490 Short-Term Investments: Corporate bonds $ 0 $ 25,782 $ 25,782 $ 0 $ 28,710 $ 28,710 Certificates of deposit 3,574 0 3,574 3,846 0 3,846 Total Short-Term Investments $ 3,574 $ 25,782 $ 29,356 $ 3,846 $ 28,710 $ 32,556 Long-Term Investments: Corporate bonds $ 0 $ 3,232 $ 3,232 $ 0 $ 0 $ 0 Certificates of deposit 510 0 510 0 0 0 Total Long-Term Investments $ 510 $ 3,232 $ 3,742 $ 0 $ 0 $ 0 Cash equivalents and Investments - book value $ 6,308 $ 29,014 $ 35,322 $ 4,628 $ 29,418 $ 34,046 Unrealized gains (losses) $ (1 ) $ 13 $ 12 $ 1 $ (11 ) $ (10 ) Cash equivalents and Investments - fair value $ 6,307 $ 29,027 $ 35,334 $ 4,629 $ 29,407 $ 34,036

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
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, 2020 2019 2020 2019 Cost of revenues $ 0 $ 166 $ 111 $ 333 Operating expenses 0 48 33 122 Total $ 0 $ 214 $ 144 $ 455
Summary of Other Intangible Assets	The summary of other intangible assets, net is as follows: June 30, 2020 December 31, 2019 Accumulated Net Book Accumulated Net Book Cost Amortization Value Cost Amortization Value Customer contracts and relationships $ 16,880 $ 16,880 $ 0 $ 16,880 $ 16,880 $ 0 Patents and technology 10,114 10,114 0 10,114 10,003 111 Trademarks and trade names 4,834 4,834 0 4,834 4,801 33 Other 2,506 2,506 0 2,506 2,506 0 Total $ 34,334 $ 34,334 $ 0 $ 34,334 $ 34,190 $ 144
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 to 6 years 5.1 Trademarks and trade names 5 to 6 years 5.6 Other 1 to 6 years 3.0
Schedule of Expected Amortization Expense	The Company’s intangible assets were fully amortized as of February 2020. The amortization expense for 2020 is as follows: Fiscal Year Amount 2020 $ 144

Balance Sheet Information (Tabl

Balance Sheet Information (Tables)	6 Months Ended
	Jun. 30, 2020
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, 2020 December 31, 2019 Credit loss provision $ 72 $ 56 Credit allowances 43 48 Total allowances $ 115 $ 104
Summary of Allowance for credit losses	The following table summarizes the allowance for credit losses activity during the six months ended June 30, 2020: Balance at December 31, 2019 $ 56 Current period benefit for credit losses (111 ) Recovery of amounts previously written off 127 Balance at June 30, 2020 $ 72
Summary of Inventories, Net	Inventories, net consisted of the following: June 30, 2020 December 31, 2019 Raw materials $ 6,418 $ 6,502 Work-in-process 1,027 913 Finished goods 3,572 4,520 Inventories, net $ 11,017 $ 11,935
Summary of Property and Equipment	Property and equipment consisted of the following: June 30, 2020 December 31, 2019 Building $ 6,442 $ 6,389 Computers and office equipment 9,880 9,847 Manufacturing and test equipment 14,892 14,192 Furniture and fixtures 1,432 1,314 Leasehold improvements 2,991 2,850 Motor vehicles 20 20 Total property and equipment 35,657 34,612 Less: Accumulated depreciation and amortization (24,939 ) (24,397 ) Land 1,770 1,770 Property and equipment, net $ 12,488 $ 11,985
Summary of Accrued Liabilities	Accrued liabilities consisted of the following: June 30, 2020 December 31, 2019 Inventory receipts $ 2,407 $ 1,431 Paid time off 1,043 855 Payroll and other employee benefits 894 1,605 Professional fees and contractors 295 246 Warranties 268 444 Deferred revenues 259 241 Income and sales taxes 221 133 Employee stock purchase plan 203 228 Operating leases 105 282 Customer refunds for estimated returns 96 147 Real estate taxes 80 152 Finance leases 73 77 Restructuring 16 45 Short-term incentive plan 0 2,553 Leasehold improvements 0 702 Other 376 241 Total $ 6,336 $ 9,382
Summary of Long-term Liabilities	Long-term liabilities consisted of the following: June 30, 2020 December 31, 2019 Operating leases $ 4,072 $ 3,021 Deferred payroll taxes 138 0 Finance leases 128 164 Deferred revenue 100 119 Other 11 11 Total $ 4,449 $ 3,315

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2020
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, 2020 2019 2020 2019 Service-based awards $ 865 $ 890 $ 1,287 $ 1,470 Performance-based awards - short-term incentive plan 0 440 0 629 Performance-based awards - long-term incentive plan 77 57 155 114 Employee stock purchase plan 59 59 121 114 Stock options 0 0 0 1 Total $ 1,001 $ 1,446 $ 1,563 $ 2,328
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, 2020 2019 2020 2019 Cost of revenues $ 74 $ 102 $ 146 $ 205 Research and development 145 177 282 349 Sales and marketing 164 183 314 363 General and administrative 618 984 821 1,411 Total $ 1,001 $ 1,446 $ 1,563 $ 2,328 The following table presents a summary of the remaining unrecognized share-based compensation expense related to outstanding share-based awards as of June 30, 2020: Award Type Remaining Unrecognized Compensation Expense Weighted Average Life (Years) Service-based awards $ 2,237 1.6 Performance-based awards $ 1,051 2.5 Stock options $ 1 0.6
Summary of Stock Option Activity	A summary of the Company’s stock option activity for the six months ended June 30, 2020 is as follows: Options Outstanding Weighted Average Exercise Price Outstanding at December 31, 2019 150,246 $ 7.11 Options exercised (61,767 ) 7.13 Options forfeited (188 ) 5.00 Options cancelled/expired (72,041 ) 7.23 Outstanding at June 30, 2020 16,250 $ 6.54 Exercisable at June 30, 2020 14,867 $ 6.57
Information about Stock Options Outstanding Under all Stock Plans	The following table summarizes information about stock options outstanding under all stock option plans: Options Outstanding Options Exercisable Range of Exercise Prices Number Outstanding Weighted Average Contractual Life (Years) Weighted- Average Exercise Price Number Exercisable Weighted Average Exercise Price $ 5.06 7,000 3.21 $5.06 6,457 $5.06 $ 6.98 - $ 7.55 4,750 2.67 7.22 3,910 7.27 $ 8.09 - $ 8.21 4,500 1.42 8.12 4,500 8.12 $ 5.06 - $ 8.21 16,250 2.56 $6.54 14,867 $6.57
Weighted Average Contractual Life and Intrinsic Value of the Options Outstanding and Options Exercisable	The weighted average contractual life and intrinsic value of options outstanding and options exercisable at June 30, 2020, was the following: Weighted Average Contractual Life (years) Intrinsic Value Options Outstanding 2.56 $ 11 Options Exercisable 2.42 $ 10
Summary of Performance Share Activity	The following table summarizes the performance award activity: At Target Awards Weighted Average Fair Value Unvested Performance Awards - December 31, 2019 171,437 $ 5.27 Awards granted 145,289 8.70 Unvested Performance Awards - June 30, 2020 316,726 $ 6.84
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 2020 2019 Dividend yield 4.1 % 4.1 % Risk-free interest rate 0.1 % 2.5 % Expected volatility 44 % 34 % Expected life (in years) 0.5 0.5
Board of Directors [Member]
Summary of Director Awards Activity	The following table summarizes the director awards activity: Shares Weighted Average Fair Value Outstanding - December 31, 2019 4,831 $ 6.90 Shares awarded 60,998 6.59 Shares vested (63,413 ) 6.60 Outstanding - June 30, 2020 2,416 $ 6.90
Restricted Stock [Member]
Summary of Service-based Restricted Stock Activity	The following table summarizes service-based restricted stock activity for the six months ended June 30, 2020: Shares Weighted Average Fair Value Unvested Restricted Stock Awards - December 31, 2019 477,187 $ 6.11 Shares awarded 201,233 7.91 Shares vested (233,573 ) 6.21 Shares cancelled (3,000 ) 5.92 Unvested Restricted Stock Awards - June 30, 2020 441,847 $ 6.88
Restricted Stock Units [Member]
Summary of Service-based Restricted Stock Activity	The following table summarizes the restricted stock unit activity during the six months ended June 30, 2020: Shares Weighted Average Fair Value Unvested Restricted Stock Units - December 31, 2019 8,117 $ 5.83 Units awarded 6,448 7.48 Units vested/Shares awarded (5,482 ) 5.80 Unvested Restricted Stock Units - June 30, 2020 9,083 $ 7.02

Benefit Plans (Tables)

Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2020
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, 2020 and 2019, respectively, were as follows: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 PCTEL, Inc. 401(k) profit sharing plan - US employees $ 158 $ 162 $ 396 $ 318 Defined contribution plans - foreign employees 9 112 32 245 Total $ 167 $ 274 $ 428 $ 563

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2020
Commitments And Contingencies Disclosure [Abstract]
Summary of Restructuring Activity	The following table summarizes the restructuring activity during the six months ended June 30, 2020 and the status of the reserves at June 30, 2020: Lease Severance Termination Total Balance at December 31, 2019 $ 12 $ 33 $ 45 Restructuring expense 98 0 98 Payments made (110 ) (70 ) (180 ) Payments received 0 53 53 Balance at June 30, 2020 $ 0 $ 16 $ 16
Summary of Warranty Activity	The following table summarizes the warranty activity during the six months ended June 30, 2020 and 2019: Six Months Ended June 30, 2020 2019 Beginning balance $ 444 $ 339 Provisions for warranties $ 3 163 Consumption of reserves $ (179 ) (113 ) Ending balance $ 268 $ 389

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Components of Lease Cost	The Company's lease cost for the six months ended June 30, 2020 and 2019, respectively, included the following components: Six Months Ended June 30, 2020 2019 Operating lease costs $ 410 $ 435 Short-term lease costs 27 51 Variable lease costs 2 12 Amortization of finance lease assets 41 53 Interest on finance lease liabilities 4 4 Total lease cost $ 484 $ 555
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, 2020: Year Operating Leases Finance Leases 2020 $ 73 $ 40 2021 472 73 2022 558 48 2023 569 32 2024 581 21 Thereafter 3,174 0 Total minimum payments required 5,427 214 Less: amount representing interest 1,250 13 Present value of net minimum lease payments 4,177 201 Less: current maturities of lease obligations (105 ) (73 ) Long-term lease obligations $ 4,072 $ 128
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, 2020: June 30, 2020 Weighted-average remaining lease term - finance leases 3.2 years Weighted-average remaining lease term - operating leases 10.0 years Weighted-average discount rate - finance leases 4.0% 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 six months ended June 30, 2020 and 2019, respectively: Six Months Ended June 30, 2020 2019 Cash paid for (received) amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 229 $ 470 Operating cash flows from tenant improvements incentives from operating leases $ (1,004 ) $ 0 Operating cash flows for finance leases $ 4 $ 4 Financing cash flows for finance leases $ 41 $ 52
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, 2020 and December 31, 2019: Leases Consolidated Balance Sheet Classification June 30, 2020 December 31, 2019 Assets: Operating right-of-use assets Other noncurrent assets $ 2,384 $ 2,696 Finance right-of-use assets Other noncurrent assets 193 234 Total leased assets $ 2,577 $ 2,930 Liabilities: Current Operating lease liabilities Accrued liabilities $ 105 $ 282 Finance lease liabilities Accrued liabilities 73 77 Noncurrent Operating lease liabilities Long-term liabilities 4,072 3,021 Finance lease liabilities Long-term liabilities 128 164 Total lease liabilities $ 4,378 $ 3,544

Product Line, Customer and Ge_2

Product Line, Customer and Geographic Information (Tables)	6 Months Ended
	Jun. 30, 2020
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, 2020 and 2019: Three Months Ended June 30, 2020 Antenna Products Test & Measurement Corporate Total Revenues $ 13,910 $ 6,118 $ (186 ) $ 19,842 Gross Profit $ 4,973 $ 4,609 $ (61 ) $ 9,521 Gross Profit % 35.8 % 75.3 % NA 48.0 % Six Months Ended June 30, 2020 Antenna Products Test & Measurement Corporate Total Revenues $ 25,370 $ 12,201 $ (223 ) $ 37,348 Gross Profit $ 8,892 $ 8,905 $ (61 ) $ 17,736 Gross Profit % 35.0 % 73.0 % NA 47.5 % Three Months Ended June 30, 2019 Antenna Products Test & Measurement Corporate Total Revenues $ 16,014 $ 7,526 $ (41 ) $ 23,499 Gross Profit $ 5,569 $ 5,112 $ 13 $ 10,694 Gross Profit % 34.8 % 67.9 % NA 45.5 % Six Months Ended June 30, 2019 Antenna Products Test & Measurement Corporate Total Revenues $ 31,102 $ 13,062 $ (74 ) $ 44,090 Gross Profit $ 10,430 $ 8,898 $ 25 $ 19,353 Gross Profit % 33.5 % 68.1 % NA 43.9 %
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, 2020 and 2019, is as follows: Three Months Ended June 30, Six Months Ended June 30, Region 2020 2019 2020 2019 Europe, Middle East & Africa 16% 12% 16% 13% Asia Pacific 9% 11% 10% 11% Other Americas 2% 2% 2% 3% Total Foreign sales 27% 25% 28% 27%
Sales [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, 2020 and 2019: Three Months Ended June 30, Six Months Ended June 30, Revenues 2020 2019 2020 2019 Customer A 6% 15% 5% 10%
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, 2020 December 31, 2019 Customer A 15% 15% Customer B 4% 11%

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Aug. 31, 2019	Jan. 01, 2019
Nature Of Operations [Line Items]
Percentage of revenue transacted in foreign currency			3.00%	7.00%
Percentage of expenses transacted in foreign currency			18.00%	29.00%
Net foreign exchange gains (losses) resulting from foreign currency transactions included in other income	$ (18)	$ 85	$ 19	$ 28
Right of Use Asset	2,384		2,384		$ 2,696	$ 2,100
Lease Liability	$ 4,177		$ 4,177
ASU 2016-02 [Member]
Nature Of Operations [Line Items]
Right of Use Asset							$ 1,500
Lease Liability							$ 1,600

Income per Share - Computation

Income 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, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net income	$ 1,192	$ 941	$ 504	$ 624
Denominator:
Weighted shares outstanding - basic	18,159,029	17,827,759	18,179,906	17,724,995
Net income per common share - basic
Net income	$ 0.07	$ 0.05	$ 0.03	$ 0.04
Weighted Average Shares:
Weighted shares outstanding - basic	18,159,029	17,827,759	18,179,906	17,724,995
Common stock option grants	1,559,000	0	8,442,000	69,000
Weighted shares outstanding - diluted	18,213,617	17,934,309	18,351,880	17,915,807
Net income per common share - diluted
Net income	$ 0.07	$ 0.05	$ 0.03	$ 0.03
Restricted Stock [Member]
Weighted Average Shares:
Restricted related awards shares subject to vesting	44,821,000	31,667,000	147,116,000	80,331,000
Performance Related Awards [Member]
Weighted Average Shares:
Restricted related awards shares subject to vesting	8,208,000	74,883,000	16,416,000	110,412,000

Cash, Cash Equivalents and In_3

Cash, Cash Equivalents and Investments - Cash and Cash Equivalents and Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Cash And Cash Equivalents [Abstract]
Cash	$ 4,234	$ 5,604
Cash equivalents	2,224	1,490
Short-term investments	29,356	32,556
Long-term investment securities	3,742	0
Cash and investments	$ 39,556	$ 39,650

Cash, Cash Equivalents and In_4

Cash, Cash Equivalents and Investments - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
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	100.00%
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
Net unrealized gains (losses)	$ 12,000	$ (10,000)
China [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents in foreign bank	1,100,000	$ 2,100,000
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 - Cash Equivalents and Investments (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	$ 2,224	$ 1,490
Short-term investments	29,356	32,556
Long-term investment securities	3,742	0
Cash equivalents and Investments - book value	35,322	34,046
Unrealized gains (losses)	12	(10)
Cash equivalents and Investments - fair value	35,334	34,036
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	2,224	782
Short-term investments	3,574	3,846
Long-term investment securities	510	0
Cash equivalents and Investments - book value	6,308	4,628
Unrealized gains (losses)	(1)	1
Cash equivalents and Investments - fair value	6,307	4,629
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	708
Short-term investments	25,782	28,710
Long-term investment securities	3,232	0
Cash equivalents and Investments - book value	29,014	29,418
Unrealized gains (losses)	13	(11)
Cash equivalents and Investments - fair value	29,027	29,407
Corporate Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	708
Short-term investments	25,782	28,710
Long-term investment securities	3,232	0
Corporate Bonds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	0
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]
Cash equivalents	0	708
Short-term investments	25,782	28,710
Long-term investment securities	3,232	0
Money Market Funds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	2,224	782
Money Market Funds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	2,224	782
Money Market Funds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0	0
Certificates of Deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	3,574	3,846
Long-term investment securities	510	0
Certificates of Deposit [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	3,574	3,846
Long-term investment securities	510	0
Certificates of Deposit [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0	0
Long-term investment securities	$ 0	$ 0

Goodwill and Intangible Assets

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Change in goodwill	$ 0	$ 0
Goodwill	$ 3,332,000	3,332,000	$ 3,332,000
Increase (decrease) in cost of intangible assets		$ 100,000
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		6 years

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Summary Of Amortization Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Finite Lived Intangible Assets [Line Items]
Amortization expense, total	$ 0	$ 214	$ 144	$ 455
Cost of Revenues [Member]
Finite Lived Intangible Assets [Line Items]
Amortization expense, total	0	166	111	333
Operating Expense [Member]
Finite Lived Intangible Assets [Line Items]
Amortization expense, total	$ 0	$ 48	$ 33	$ 122

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Cost	$ 34,334	$ 34,334
Accumulated Amortization	34,334	34,190
Net Book Value	0	144
Customer Contracts and Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Cost	16,880	16,880
Accumulated Amortization	16,880	16,880
Net Book Value	0	0
Patents and Technology [Member]
Finite Lived Intangible Assets [Line Items]
Cost	10,114	10,114
Accumulated Amortization	10,114	10,003
Net Book Value	0	111
Trademarks and Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Cost	4,834	4,834
Accumulated Amortization	4,834	4,801
Net Book Value	0	33
Other [Member]
Finite Lived Intangible Assets [Line Items]
Cost	2,506	2,506
Accumulated Amortization	2,506	2,506
Net Book Value	$ 0	$ 0

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Summary of Assigned Lives and Weighted Average Amortization Periods by Intangible Asset Category (Detail)	6 Months Ended
	Jun. 30, 2020
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	6 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
Weighted Average Amortization Period	5 years 1 month 6 days
Patents and Technology [Member] | Minimum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	5 years
Patents and Technology [Member] | Maximum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	6 years
Trademarks and Trade Names [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Weighted Average Amortization Period	5 years 7 months 6 days
Trademarks and Trade Names [Member] | Minimum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	5 years
Trademarks and Trade Names [Member] | Maximum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	6 years
Other [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Weighted Average Amortization Period	3 years
Other [Member] | Minimum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	1 year
Other [Member] | Maximum [Member]
Summary of assigned lives and weighted average amortization periods by intangible asset category
Assigned Life	6 years

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Schedule of Expected Amortization Expense (Detail) $ in Thousands	Jun. 30, 2020USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020	$ 144

Balance Sheet Information - Add

Balance Sheet Information - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Allowance for doubtful accounts	$ 115		$ 115		$ 104
Recovery of amounts previously written off	100		127
Consigned inventory with customers	400		400		300
Allowance for inventory losses	3,800		3,800		$ 3,400
Depreciation and amortization	$ 800	$ 700	1,500	$ 1,400
Disposal of fully depreciated property and equipment			$ 800
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, 2020	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Credit loss provision	$ 72	$ 56
Credit allowances	43	48
Total allowances	$ 115	$ 104

Balance Sheet Information - All

Balance Sheet Information - Allowance for credit losses (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Balance at December 31, 2019		$ 56
Current period benefit for credit losses		(111)
Recovery of amounts previously written off	$ 100	127
Balance at June 30, 2020	$ 72	$ 72

Balance Sheet Information - S_2

Balance Sheet Information - Summary of Inventories, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Inventory Net [Abstract]
Raw materials	$ 6,418	$ 6,502
Work-in-process	1,027	913
Finished goods	3,572	4,520
Inventories, net	$ 11,017	$ 11,935

Balance Sheet Information - S_3

Balance Sheet Information - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 35,657	$ 34,612
Less: Accumulated depreciation and amortization	(24,939)	(24,397)
Land	1,770	1,770
Property and equipment, net	12,488	11,985
Building [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	6,442	6,389
Computers and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	9,880	9,847
Manufacturing and Test Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	14,892	14,192
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,432	1,314
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	2,991	2,850
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, 2020	Dec. 31, 2019
Payables And Accruals [Abstract]
Inventory receipts	$ 2,407	$ 1,431
Paid time off	1,043	855
Payroll and other employee benefits	894	1,605
Professional fees and contractors	295	246
Warranties	268	444
Deferred revenues	259	241
Income and sales taxes	221	133
Employee stock purchase plan	203	228
Operating leases	105	282
Customer refunds for estimated returns	96	147
Real estate taxes	80	152
Finance leases	73	77
Restructuring	16	45
Short-term incentive plan	0	2,553
Leasehold improvements	0	702
Other	376	241
Total	$ 6,336	$ 9,382

Balance Sheet Information - S_5

Balance Sheet Information - Summary of Long-term Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Liabilities Noncurrent [Abstract]
Operating leases	$ 4,072	$ 3,021
Deferred payroll taxes	138	0
Finance leases	128	164
Deferred revenue	100	119
Other	11	11
Total	$ 4,449	$ 3,315

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock compensation expense	$ 1,001,000	$ 1,446,000	$ 1,563,000	$ 2,328,000
Capitalize stock compensation expense	$ 0		$ 0		$ 0

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, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Stock Based Compensation [Line Items]
Total	$ 1,001	$ 1,446	$ 1,563	$ 2,328
Service-based Awards [Member]
Stock Based Compensation [Line Items]
Total	865	890	1,287	1,470
Performance-based Awards - Short-term Incentive Plan [Member]
Stock Based Compensation [Line Items]
Total	0	440	0	629
Performance-based Awards - Long-term Incentive Plan [Member]
Stock Based Compensation [Line Items]
Total	77	57	155	114
Employee Stock Purchase Plan [Member]
Stock Based Compensation [Line Items]
Total	59	59	121	114
Stock Options [Member]
Stock Based Compensation [Line Items]
Total	$ 0	$ 0	$ 0	$ 1

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock-Based Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	$ 1,001	$ 1,446	$ 1,563	$ 2,328
Cost of Revenues [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	74	102	146	205
Research and Development [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	145	177	282	349
Sales and Marketing [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	164	183	314	363
General and Administrative [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock compensation expense	$ 618	$ 984	$ 821	$ 1,411

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, 2020USD ($)
Service-based Awards [Member]
Stock Based Compensation [Line Items]
Remaining unrecognized share-based compensation expense	$ 2,237
Share based compensation arrangement by share based payment award options weighted average life in years	1 year 7 months 6 days
Performance-based Awards [Member]
Stock Based Compensation [Line Items]
Remaining unrecognized share-based compensation expense	$ 1,051
Share based compensation arrangement by share based payment award options weighted average life in years	2 years 6 months
Stock Options [Member]
Stock Based Compensation [Line Items]
Remaining unrecognized share-based compensation expense	$ 1
Share based compensation arrangement by share based payment award options weighted average life in years	7 months 6 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, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Beginning balance, Shares | shares	477,187
Shares awarded, Shares | shares	201,233
Shares vested, Shares | shares	(233,573)
Shares cancelled, Shares | shares	(3,000)
Unvested Ending balance, Shares | shares	441,847
Unvested Beginning balance, Weighted Average Fair Value | $ / shares	$ 6.11
Shares awarded, Weighted Average Fair Value | $ / shares	7.91
Shares vested, Weighted Average Fair Value | $ / shares	6.21
Shares cancelled, Weighted Average Fair Value | $ / shares	5.92
Unvested Ending balance, Weighted Average Fair Value | $ / shares	$ 6.88

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock Units - Service Based - Additional Information (Detail) shares in Thousands, $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	Apr. 30, 2020shares	Feb. 29, 2020shares	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)
Service Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards issued during the period | shares	47,539	153,694
Stock award vesting term	the Company issued to executive employees 47,539 service-based restricted stock awards. The restricted stock was granted under the LTIP and has a one-year vesting period	Company issued to employees 153,694 service-based restricted stock awards under the LTIP that vest in three substantially equal annual increments commencing in 2021.
Restricted shares vested grant date intrinsic value			$ 8		$ 1,900	$ 2,100
Employee Salary Reduction Percentage			0.10
Restricted Stock Issued Against Salary Percentage			0.05
Service Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vested grant date intrinsic value			$ 0	$ 0	$ 44	$ 30

Stock-Based Compensation - Su_4

Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Detail) - Restricted Stock Units [Member]	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Beginning balance, Shares | shares	8,117
Units awarded, Shares | shares	6,448
Units vested/Shares awarded, Shares | shares	(5,482)
Unvested Ending balance, Shares | shares	9,083
Unvested Beginning balance, Weighted Average Fair Value | $ / shares	$ 5.83
Units awarded, Weighted Average Fair Value | $ / shares	7.48
Units vested/Shares awarded, Weighted Average Fair Value | $ / shares	5.80
Unvested Ending balance, Weighted Average Fair Value | $ / shares	$ 7.02

Stock-Based Compensation - St_2

Stock-Based Compensation - Stock Options - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value based on share price	$ 6.68
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vested in remaining period	4 years
Employee stock options vesting provisions, description	Employee stock options are subject to installment vesting typically over a period of four years.
Period of termination of employment	180 days
Stock options granted period	7 years
Options exercised	61,767
Intrinsic value	$ 0.1
Options Outstanding, Granted	0	0
Lower range of exercise prices	$ 5.06
Upper range of exercise prices	$ 8.21
Period of expected life, options granted	5 years
Stock Options [Member] | Stock Option Plan One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from options exercised	$ 0.1
Options exercised	9,412	0
Stock Options [Member] | Stock Option Plan Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised	52,355
Shares issued	10,194

Stock-Based Compensation - Su_5

Stock-Based Compensation - Summary of Stock Option Activity (Detail) - Stock Options [Member]	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Summary Of Stock Option Activities [Line Items]
Options Outstanding, Beginning balance, Shares | shares	150,246
Options Outstanding, Exercised | shares	(61,767)
Options Outstanding, Forfeited | shares	(188)
Options Outstanding, Cancelled/expired | shares	(72,041)
Options Outstanding, Ending balance, Shares | shares	16,250
Options Exercisable, Ending balance, Shares | shares	14,867
Weighted Average Exercise Price, Beginning balance | $ / shares	$ 7.11
Weighted Average Exercise Price, Exercised | $ / shares	7.13
Weighted Average Exercise Price, Forfeited | $ / shares	5
Weighted Average Exercise Price, Options cancelled/expired | $ / shares	7.23
Weighted Average Exercise Price, Ending balance | $ / shares	6.54
Weighted Average Exercise Price, Exercisable | $ / shares	$ 6.57

Stock-Based Compensation - Info

Stock-Based Compensation - Information about Stock Options Outstanding Under all Stock Plans (Detail)	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise prices	$ 5.06
Options Outstanding, Number | shares	7,000
Options Outstanding, Weighted Average Contractual Life (Years)	3 years 2 months 15 days
Options Outstanding, Weighted-Average Exercise Price	$ 5.06
Options Exercisable, Number | shares	6,457
Options Exercisable, Weighted Average Exercise Price	$ 5.06
Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range of exercise prices	6.98
Upper range of exercise prices	$ 7.55
Options Outstanding, Number | shares	4,750
Options Outstanding, Weighted Average Contractual Life (Years)	2 years 8 months 1 day
Options Outstanding, Weighted-Average Exercise Price	$ 7.22
Options Exercisable, Number | shares	3,910
Options Exercisable, Weighted Average Exercise Price	$ 7.27
Range Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range of exercise prices	8.09
Upper range of exercise prices	$ 8.21
Options Outstanding, Number | shares	4,500
Options Outstanding, Weighted Average Contractual Life (Years)	1 year 5 months 1 day
Options Outstanding, Weighted-Average Exercise Price	$ 8.12
Options Exercisable, Number | shares	4,500
Options Exercisable, Weighted Average Exercise Price	$ 8.12
Range Four [Member]
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	$ 8.21
Options Outstanding, Number | shares	16,250
Options Outstanding, Weighted Average Contractual Life (Years)	2 years 6 months 21 days
Options Outstanding, Weighted-Average Exercise Price	$ 6.54
Options Exercisable, Number | shares	14,867
Options Exercisable, Weighted Average Exercise Price	$ 6.57

Stock-Based Compensation - Weig

Stock-Based Compensation - Weighted Average Contractual Life and Intrinsic Value of Options Outstanding and Options Exercisable (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)
Share Based Compensation Arrangement By Share Based Payment Award Options Additional Disclosures [Abstract]
Options Outstanding Weighted Average Contractual Life (years)	2 years 6 months 21 days
Options Exercisable Weighted Average Contractual Life (years)	2 years 5 months 1 day
Options Outstanding Intrinsic Value	$ 11
Options Exercisable Intrinsic Value	$ 10

Stock-Based Compensation - Shor

Stock-Based Compensation - Short-Term Incentive Plan - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
2020 STIP [Member] | Certain Executives [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of incentive awards in shares	50.00%
Percentage of incentive awards in cash	50.00%
2019 STIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Issued		129,285
2019 STIP [Member] | Certain Executives [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from issuance of shares	$ 1.2

Stock-Based Compensation - Su_6

Stock-Based Compensation - Summary of Performance Share Activity (Detail) - Performance Related Awards [Member]	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Beginning balance, Shares | shares	171,437
Awards granted | shares	145,289
Unvested Ending balance, Shares | shares	316,726
Unvested Beginning balance, Weighted Average Fair Value | $ / shares	$ 5.27
Shares awarded, Weighted Average Fair Value | $ / shares	8.70
Unvested Ending balance, Weighted Average Fair Value | $ / shares	$ 6.84

Stock-Based Compensation - Long

Stock-Based Compensation - Long-Term Incentive Plan - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	1 Months Ended		12 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Dec. 31, 2019
2020 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Revenue growth target performance period start date	Jan. 1, 2020
Revenue growth target performance period end date	Dec. 31, 2022
Total fair market value of award at target	$ 1.3
Shares awarded, Weighted Average Fair Value	$ 8.70
Number of shares earned	145,289
Maximum number of shares that may be issued	254,256
2019 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Revenue growth target performance period start date		Jan. 1, 2019
Revenue growth target performance period end date		Dec. 31, 2021
Total fair market value of award at target		$ 0.9
Shares awarded, Weighted Average Fair Value		$ 5.27
Number of shares earned		174,117	2,680
Maximum number of shares that may be issued		300,015
Maximum number of earned shares declined			4,690

Stock-Based Compensation - Empl

Stock-Based Compensation - Employee Stock Purchase Plan ("ESPP") - Additional Information (Detail) - Employee Stock Purchase Plan [Member] - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 28, 2019	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair market value to determine purchase price				85.00%
Offering period				6 months
Proceeds of from issuance of shares under ESPP	$ 0.3	$ 0.4
Options issued	95,376,000	77,297,000	0
Change in date of plan description				In May 2019, the stockholders approved the PCTEL, Inc. 2019 Employee Stock Purchase Plan. The 2019 ESPP changed the start of the six-month offering periods to April and October from February and August.
Rate of discount on fair market value of common stock under ESPP				15.00%
Period of expected life, options granted				5 years

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, 2020	Jun. 30, 2019
Calculation of fair value of each employee stock purchase grant using the Black-Scholes option-pricing model
Dividend yield	4.10%	4.10%
Risk-free interest rate	0.10%	2.50%
Expected volatility	44.00%	34.00%
Expected life (in years)	6 months	6 months

Stock-Based Compensation - Boar

Stock-Based Compensation - Board of Director Equity Awards - Additional Information (Detail) - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
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]
Common stock issued	60,998

Stock-Based Compensation - Su_7

Stock-Based Compensation - Summary of Director Awards Activity (Detail) - Board of Directors [Member]	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Beginning balance, Shares | shares	4,831,000
Options Outstanding, Granted | shares	60,998
Shares vested, Shares | shares	(63,413)
Outstanding, Ending balance, Shares | shares	2,416,000
Weighted Average Fair Value, Beginning balance | $ / shares	$ 6.90
Shares awarded, Weighted Average Fair Value | $ / shares	6.59
Shares vested, Weighted Average Fair Value | $ / shares	6.60
Weighted Average Fair Value, Ending balance | $ / shares	$ 6.90

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, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payment of withholding taxes related to stock awards	$ 1,106	$ 743
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	$ 1,100	$ 700

Stock-Based Compensation - St_3

Stock-Based Compensation - Stock Repurchases - Additional Information (Detail) - USD ($) shares in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common stock	375,046
Expenses related to repurchase of shares	$ 2,000,000	$ 2,000,000	$ 0
Stock Repurchase Average Price	5,360
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount	$ 7,000,000

Stock-Based Compensation - Auth

Stock-Based Compensation - Authorized Shares - Additional Information (Detail) - shares	Jun. 30, 2020	May 29, 2020	Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Common stock, shares authorized	50,000,000	100,000,000	100,000,000

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Detail) - Employee Benefit Plans [Member]	6 Months Ended
	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Maximum percentage of current compensation of employee to contribute in plan	15.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer matches employee contribution percentage	4.00%

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, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Contribution to retirement plans	$ 167	$ 274	$ 428	$ 563
US Employees [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to retirement plans	158	162	396	318
Foreign Employees [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to retirement plans	$ 9	$ 112	$ 32	$ 245

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) $ in Thousands	Aug. 07, 2019USD ($)	Jun. 30, 2020USD ($)Position	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)PositionEmployee	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Commitments And Contingencies Disclosure [Line Items]
Restructuring and related activities, initiation date	Aug. 7, 2019
Restructuring and related charges, description				The severance payments for these employees were paid in April and May 2020
Additional Restructuring Charges				$ 300
Restructuring expenses	$ 600	$ 11	$ 0	$ 98	$ 0
Number of employees | Employee				10
Lease obligation		4,177		$ 4,177
Refund liability related to estimated sales returns		96		96		$ 147
Warranties		268		268		444
Warranty Reserves [Member]
Commitments And Contingencies Disclosure [Line Items]
Refund liability related to estimated sales returns		100		100		100
Warranties		268	$ 389	$ 268	$ 389	$ 444	$ 339
Warranty Reserves [Member] | Antenna [Member]
Commitments And Contingencies Disclosure [Line Items]
Repair and replacement warranty				5 years
Tianjin [Member]
Commitments And Contingencies Disclosure [Line Items]
Number of employees | Employee				94
Colorado Office [Member]
Commitments And Contingencies Disclosure [Line Items]
Lease obligation		$ 23		$ 23
Lease expiration month and year				2020-10
Sublease payments				$ 7
Minimum [Member]
Commitments And Contingencies Disclosure [Line Items]
Number of expected full-time global workforce positions eliminations | Position		25		25
Maximum [Member]
Commitments And Contingencies Disclosure [Line Items]
Number of expected full-time global workforce positions eliminations | Position		30		30

Commitments and Contingencies_2

Commitments and Contingencies - Summary of Restructuring Activity (Detail) - USD ($) $ in Thousands	Aug. 07, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost And Reserve [Line Items]
Beginning balance				$ 45
Restructuring expenses	$ 600	$ 11	$ 0	98	$ 0
Payments made				(180)
Payments received				53
Ending balance		16		16
Severance [Member]
Restructuring Cost And Reserve [Line Items]
Beginning balance				12
Restructuring expenses				98
Payments made				(110)
Payments received				0
Ending balance		0		0
Lease Termination [Member]
Restructuring Cost And Reserve [Line Items]
Beginning balance				33
Restructuring expenses				0
Payments made				(70)
Payments received				53
Ending balance		$ 16		$ 16

Commitments and Contingencies_3

Commitments and Contingencies - Summary of Warranty Activity (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Changes in warranty reserves
Beginning balance	$ 444
Ending balance	268
Warranty Reserves [Member]
Changes in warranty reserves
Beginning balance	444	$ 339
Provisions for warranties	3	163
Consumption of reserves	(179)	(113)
Ending balance	$ 268	$ 389

Leases - Components of Lease Co

Leases - Components of Lease Cost (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating lease costs	$ 410	$ 435
Short-term lease costs	27	51
Variable lease costs	2	12
Amortization of finance lease assets	41	53
Interest on finance lease liabilities	4	4
Total lease cost	$ 484	$ 555

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments under Operating and Finance Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Operating Leases
2020	$ 73
2021	472
2022	558
2023	569
2024	581
Thereafter	3,174
Total minimum payments required	5,427
Less: amount representing interest	1,250
Present value of net minimum lease payments	4,177
Less: current maturities of lease obligations	(105)	$ (282)
Long-term lease obligations	4,072	3,021
Finance Leases
2020	40
2021	73
2022	48
2023	32
2024	21
Thereafter	0
Total minimum payments required	214
Less: amount representing interest	13
Present value of net minimum lease payments	201
Less: current maturities of lease obligations	(73)	(77)
Long-term lease obligations	$ 128	$ 164

Leases - Summary of Weighted Av

Leases - Summary of Weighted Average Remaining Lease Terms and Discount Rates (Detail)	Jun. 30, 2020
Leases [Abstract]
Weighted-average remaining lease term - finance leases	3 years 2 months 12 days
Weighted-average remaining lease term - operating leases	10 years
Weighted-average discount rate - finance leases	4.00%
Weighted-average discount rate - operating leases	5.00%

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating cash flows for operating leases	$ 229	$ 470
Operating cash flows from tenant improvements incentives from operating leases	(1,004)	0
Operating cash flows for finance leases	4	4
Financing cash flows for finance leases	$ 41	$ 52

Leases - Schedule of Classifica

Leases - Schedule of Classification of ROU Assets and Lease liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Aug. 31, 2019
ASSETS
Operating right-of-use assets	$ 2,384	$ 2,696	$ 2,100
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Finance right-of-use assets	$ 193	234
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Total leased assets	$ 2,577	2,930
Current
Operating leases	$ 105	282
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent
Finance leases	$ 73	77
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent
Noncurrent
Operating leases	$ 4,072	3,021
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LiabilitiesNoncurrent
Finance leases	$ 128	164
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LiabilitiesNoncurrent
Total lease liabilities	$ 4,378	$ 3,544

Leases - Additional Information

Leases - Additional Information (Detail) $ in Thousands	1 Months Ended		6 Months Ended
	Jul. 31, 2020USD ($)ft²	Jan. 31, 2019ft²	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Aug. 31, 2019USD ($)
Leases [Line Items]
Right of Use Asset | $			$ 2,384	$ 2,696	$ 2,100
Rent abatement duration			14 months
Lease description	In July 2020, the Company signed a one-year lease renewal for its Beijing Design Center.  Under the new lease, the square footage was reduced from 11,210 square feet to 5,393 square feet. The lease period ends on June 14, 2021	In January 2019, the Company entered into an eleven-year lease ending February 28, 2031 for 21,030 square feet of office space in Clarksburg, Maryland for the Company’s test & measurement product line. The Company moved the operations for its test & measurement product line from its Germantown, Maryland office to the new office in January 2020.
Total lease obligation | $	$ 100
Test & Measurement Product Line [Member]
Leases [Line Items]
Operating lease term of contract		11 years
Area of lease | ft²		21,030
Tenant improvement incentives in form of cash reimbursements | $			$ 1,500
Lease expiration date		Feb. 28, 2031
Beijing Design Center [Member]
Leases [Line Items]
Operating lease term of contract	1 year
Area of lease | ft²	11,210
Lease expiration date	Jun. 14, 2021
Area of land reduced by square footage under new lease | ft²	5,393

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Line Items]
Income tax expense (benefit)	$ 8	$ 8	$ 16	$ 17
Statutory rate			21.00%	21.00%
Net deferred tax assets	13,500		$ 13,500		$ 13,500
Operating loss and credit carry forward, expiration period			The Company’s federal NOLs generated in 2019 and 2018 have an infinite life, 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.
Net operating loss carry forward period			20 years
Domestic deferred tax assets ratable reversal pattern period			12 years
Deferred tax assets, valuation allowance	13,500		$ 13,500		$ 13,500
Cumulative terms of US book income turned to loss					3 years
Gross unrecognized tax benefit	800		800		$ 800
Deferred payroll taxes	100		100
Domestic Tax Authority [Member]
Income Tax Disclosure [Line Items]
Net deferred tax assets	13,000		13,000		13,000
Foreign [Member]
Income Tax Disclosure [Line Items]
Net deferred tax assets	$ 500		$ 500		$ 500

Product Line, Customer and Ge_3

Product Line, Customer and Geographic Information - Result of Product Line Revenues and Gross Profits (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Results of operations by segments
Revenues	$ 19,842	$ 23,499	$ 37,348	$ 44,090
Gross Profit	$ 9,521	$ 10,694	$ 17,736	$ 19,353
Gross Profit %	48.00%	45.50%	47.50%	43.90%
Operating Segments [Member] | Antenna Products [Member]
Results of operations by segments
Revenues	$ 13,910	$ 16,014	$ 25,370	$ 31,102
Gross Profit	$ 4,973	$ 5,569	$ 8,892	$ 10,430
Gross Profit %	35.80%	34.80%	35.00%	33.50%
Operating Segments [Member] | Test & Measurement Product Line [Member]
Results of operations by segments
Revenues	$ 6,118	$ 7,526	$ 12,201	$ 13,062
Gross Profit	$ 4,609	$ 5,112	$ 8,905	$ 8,898
Gross Profit %	75.30%	67.90%	73.00%	68.10%
Corporate, Non-Segment [Member]
Results of operations by segments
Revenues	$ (186)	$ (41)	$ (223)	$ (74)
Gross Profit	$ (61)	$ 13	$ (61)	$ 25

Product Line, Customer and Ge_4

Product Line, Customer and Geographic Information - Customers Accounted Revenues by Geographic Location (Detail) - Sales [Member] - Geographic Concentration Risk [Member]	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Europe, Middle East, & Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Sales	16.00%	12.00%	16.00%	13.00%
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Sales	9.00%	11.00%	10.00%	11.00%
Other Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Sales	2.00%	2.00%	2.00%	3.00%
Total Foreign Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Sales	27.00%	25.00%	28.00%	27.00%

Product Line, Customer and Ge_5

Product Line, Customer and Geographic Information - Schedule of Revenues and Total Trade Accounts Receivable Represents Customers Accounted for 10% or More Percentage (Detail) - Customer Concentration Risk [Member]	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Sales [Member] | Customer A [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage	6.00%	15.00%	5.00%	10.00%
Trade Accounts Receivable [Member] | Customer A [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage			15.00%		15.00%
Trade Accounts Receivable [Member] | Customer B [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage			4.00%		11.00%

Revenue from Contracts with C_2

Revenue from Contracts with Customers - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
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 related to estimated sales returns	$ 96,000		$ 96,000		$ 147,000
Contract assets	0		0		0
Contract with customer liability, revenue recognized	400,000	$ 300,000	400,000	$ 300,000
Accrued Liabilities [Member]
Disaggregation Of Revenue [Line Items]
Refund liability related to estimated sales returns	100,000		100,000		100,000
Contract liability	300,000		300,000		200,000
Inventories [Member]
Disaggregation Of Revenue [Line Items]
Product return asset	$ 100,000		$ 100,000		$ 100,000

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Additional Information1 (Detail)	Jun. 30, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-04-01
Disaggregation Of Revenue [Line Items]
Period for performance obligation to provide software maintenance and support	1 year