Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2022	Apr. 19, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K/A
Amendment Flag	true
Amendment Description	PCTEL, Inc. (“PCTEL”, the “Company”, “we”, or “us”) is filing this Amendment No. 1 on Form 10-K/A (this “Amendment”) to file certain information that will be included in the Company’s definitive proxy statement for the Company’s 2023 Annual Meeting of Stockholders. This Amendment amends the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022, originally filed with the Securities and Exchange Commission (the “SEC”) on March 16, 2023 (the “Original Filing”). The Company is filing this Amendment to amend Part III of the Original Filing to include the information required by and not included in Part III of the Original Filing because the Company will not be filing its definitive proxy statement within 120 days of the end of its fiscal year ended December 31, 2022. In accordance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Part III, Items 10 through 14 of the Original Filing are hereby amended and restated in their entirety. Additionally, in accordance with Rules 12b-15 and 13a-14 under the Exchange Act, wehave amended Part IV, Item 15 to include currently dated certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Since no new financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4, and 5 of the certifications have been omitted. Similarly, since no financial statements have been included in this Amendment, certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 have been omitted. Except for the changes to Part III and the filing of related certifications added to the list of Exhibits in Part IV, no other changes have been made to the Original Filing. The Original Filing continues to speak as of the date of the Original Filing, and the Company has not updated the disclosures contained therein to reflect any events which occurred at a date subsequent to the filing of the Original Filing other than as expressly indicated in this Amendment. Accordingly, this Amendment should read in conjunction with the Original Filing and the Company’s other filings made with the SEC on or subsequent to March 16, 2023. Terms used but not otherwise defined in the Amendment have such meaning as ascribed to them in the Original Filing.
Document Period End Date	Dec. 31, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Trading Symbol	PCTI
Entity Registrant Name	PCTEL, Inc.
Entity Central Index Key	0001057083
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Stock, $.001 Par Value Per Share
Security Exchange Name	NASDAQ
Entity File Number	000-27115
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0364943
Entity Common Stock Shares Outstanding		19,083,075
Entity Public Float			$ 86,104,893
Document Annual Report	true
Document Transition Report	false
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
ICFR Auditor Attestation Flag	true
Auditor Firm ID	248
Auditor Name	Grant Thornton LLP
Auditor Location	Chicago, IL