v3.25.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2025
May 09, 2025
Document and Entity Information    
Document Type 10-Q  
Document Period End Date Mar. 31, 2025  
Document Transition Report false  
Document Quarterly Report true  
Entity File Number 001-36379  
Entity Registrant Name ENERGOUS CORPORATION  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 46-1318953  
Entity Address, Address Line One 3590 North First Street  
Entity Address, Address Line Two Suite 330  
Entity Address, City or Town San Jose  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 95134  
City Area Code 408  
Local Phone Number 963-0200  
Title of 12(b) Security Common Stock, $0.00001 par value  
Trading Symbol WATT  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   34,136,303
Entity Central Index Key 0001575793  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2025  
Amendment Flag false