Document And Entity Information - shares
3 Months Ended
Mar. 31, 2017
May 01, 2017
Document And Entity Information [Abstract]    
Document Type 10-Q  
Document Period End Date Mar. 31, 2017  
Amendment Flag false  
Entity Registrant Name PARKERVISION INC  
Entity Central Index Key 0000914139  
Current Fiscal Year End Date --12-31  
Entity Filer Category Smaller Reporting Company  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q1  
Entity Common Stock, Shares Outstanding   17,697,899
Trading Symbol prkr