Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2023
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Nature of Operations	Nature of Operations PCTEL, Inc. (“PCTEL” or the "Company") was incorporated in California in 1994 and reincorporated in Delaware in 1998. The Company is a leading global provider of wireless technology, including purpose-built Industrial IoT ("Industrial IoT") devices, antenna systems, and test & measurement solutions. PCTEL strives to solve complex wireless challenges to help organizations stay connected, transform, and grow and it has expertise in radio frequency ("RF"), digital, and mechanical engineering. The Company has two product lines (antennas & Industrial IoT devices and test & measurement products). The Company’s principal executive offices are located at 471 Brighton Drive, Bloomingdale, Illinois 60108. The telephone number at that address is (630) 372-6800 and the website is www.pctel.com. Additional information about the Company can be obtained on the Company’s website; however, the information within, or that can be assessed through, the Company's website, is not part of this Quarterly Report on Form 10-Q.
Basis of Consolidation	Basis of Consolidation The unaudited interim condensed consolidated financial statements of the Company include the condensed consolidated balance sheets as of March 31, 2023 and December 31, 2022, and the condensed consolidated statements of cash flows, the condensed consolidated statements of operations, the condensed consolidated statements of comprehensive income (loss), and the condensed consolidated statements of stockholders’ equity for the three months ended March 31, 2023 and 2022. The interim condensed consolidated financial statements are unaudited but 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, 2022 is derived from the audited financial statements as of December 31, 2022. 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 (the “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 2022 Form 10-K. There were no material changes in the Company’s significant accounting policies during the three months ended March 31, 2023. Additionally, the Company reaffirms the use of estimates in the preparation of the financial statements as set forth in the 2022 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 2022 Form 10-K. The results of operations for interim periods are not necessarily indicative of the results that may be expected for the full period or any other interim period.
Foreign Operations	Foreign Operations Cross-border transactions, both with external parties and in our internal operations, result in exposure to foreign exchange rate fluctuations. We are exposed to currency risk by having foreign locations, suppliers and employees outside the U.S. Fluctuations could have an adverse effect on our results of operations and cash flows. We manage certain operating activities at the local level with revenues, costs, assets, and liabilities generally being denominated in local currencies. However, our results of operations and assets and liabilities are reported in U.S. dollars and thus will fluctuate with changes in exchange rates between such local currencies and the U.S. dollar. Gains and losses resulting from transactions originally in foreign currencies and then translated into U.S. dollars are included in the condensed consolidated statements of operations. For the three months ended March 31, 2023, approximately 11% of revenues and 10% of expenses were transacted in foreign currencies as compared to 13% and 18% for the three months ended March 31, 2022. Net foreign exchange gains resulting from foreign currency transactions included in other income were $(10) and $(2) for each of the three months ended March 31, 2023 and 2022.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In June 2022, FASB issued ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. This update clarifies the guidance in Topic 820 on the fair value measurement of an equity security that is subject to contractual restrictions that prohibit the sale of the equity security. This update also requires specific disclosures related to such equity securities including (1) the fair value of such equity securities reflected in the balance sheet, (2) the nature and remaining duration of the corresponding restrictions, and (3) any circumstances that could cause a lapse in the restrictions. This ASU is effective for all public business entities in fiscal years beginning after December 15, 2023, and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact of this ASU on our consolidated financial statements and related disclosures.

Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2023

Organization Consolidation And Presentation Of Financial Statements [Abstract]

PCTEL, Inc. (“PCTEL” or the "Company") was incorporated in California in 1994 and reincorporated in Delaware in 1998. The Company is a leading global provider of wireless technology, including purpose-built Industrial IoT ("Industrial IoT") devices, antenna systems, and test & measurement solutions. PCTEL strives to solve complex wireless challenges to help organizations stay connected, transform, and grow and it has expertise in radio frequency ("RF"), digital, and mechanical engineering. The Company has two product lines (antennas & Industrial IoT devices and test & measurement products).

The Company’s principal executive offices are located at 471 Brighton Drive, Bloomingdale, Illinois 60108. The telephone number at

that address is (630) 372-6800 and the website is www.pctel.com. Additional information about the Company can be obtained on the Company’s website; however, the information within, or that can be assessed through, the Company's website, is not part of this Quarterly Report on Form 10-Q.

Basis of Consolidation

The unaudited interim condensed consolidated financial statements of the Company include the condensed consolidated balance sheets as of March 31, 2023 and December 31, 2022, and the condensed consolidated statements of cash flows, the condensed consolidated statements of operations, the condensed consolidated statements of comprehensive income (loss), and the condensed consolidated statements of stockholders’ equity for the three months ended March 31, 2023 and 2022. The interim condensed consolidated financial statements are unaudited but 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, 2022 is derived from the audited financial statements as of December 31, 2022.

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 (the “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 2022 Form 10-K. There were no material changes in the Company’s significant accounting policies during the three months ended March 31, 2023. Additionally, the Company reaffirms the use of estimates in the preparation of the financial statements as set forth in the 2022 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 2022 Form 10-K. The results of operations for interim periods are not necessarily indicative of the results that may be expected for the full period or any other interim period.

Foreign Operations

Cross-border transactions, both with external parties and in our internal operations, result in exposure to foreign exchange rate fluctuations. We are exposed to currency risk by having foreign locations, suppliers and employees outside the U.S. Fluctuations could have an adverse effect on our results of operations and cash flows. We manage certain operating activities at the local level with revenues, costs, assets, and liabilities generally being denominated in local currencies. However, our results of operations and assets and liabilities are reported in U.S. dollars and thus will fluctuate with changes in exchange rates between such local currencies and the U.S. dollar.

Gains and losses resulting from transactions originally in foreign currencies and then translated into U.S. dollars are included in the condensed consolidated statements of operations. For the three months ended March 31, 2023, approximately 11% of revenues and 10% of expenses were transacted in foreign currencies as compared to 13% and 18% for the three months ended March 31, 2022. Net foreign exchange gains resulting from foreign currency transactions included in other income were $(10) and $(2) for each of the three months ended March 31, 2023 and 2022.

Recent Accounting Pronouncements

In June 2022, FASB issued ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. This update clarifies the guidance in Topic 820 on the fair value measurement of an equity security that is subject to contractual restrictions that prohibit the sale of the equity security. This update also requires specific disclosures related to such equity securities including (1) the fair value of such equity securities reflected in the balance sheet, (2) the nature and remaining duration of the corresponding restrictions, and (3) any circumstances that could cause a lapse in the restrictions. This ASU is effective for all public business entities in fiscal years beginning after December 15, 2023, and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact of this ASU on our consolidated financial statements and related disclosures.