Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2023
Mar. 25, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Trading Symbol WATT    
Entity Registrant Name Energous Corp    
Entity Central Index Key 0001575793    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   6,082,686  
Entity Public Float     $ 21,787,566
Title of 12(b) Security Common Stock, $0.00001 par value    
Security Exchange Name NASDAQ    
Entity Interactive Data Current Yes    
Entity File Number 001-36379    
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 210    
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    
Document Annual Report true    
Document Transition Report false    
Auditor Firm ID 688    
Auditor Name Marcum llp    
Auditor Location San Jose, CA    
Documents Incorporated by Reference

The registrant intends to file a definitive proxy statement pursuant to Regulation 14A within 120 days after the end of the fiscal year ended December 31, 2023. Portions of such proxy statement are incorporated by reference into Part III of this Annual Report on Form 10-K.