Document and Entity Information - shares
6 Months Ended
Jun. 30, 2019
Aug. 09, 2019
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Entity Registrant Name PC TEL INC  
Entity Central Index Key 0001057083  
Entity Current Reporting Status 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  
Trading Symbol PCTI  
Entity Tax Identification Number 770364943  
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   18,487,726