Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

v2.4.1.9
Document And Entity Information (USD $)
12 Months Ended
Dec. 31, 2014
Mar. 30, 2015
Jun. 30, 2014
Document Information [Line Items]      
Entity Registrant Name Energous Corp    
Entity Central Index Key 0001575793    
Current Fiscal Year End Date --12-31    
Entity Filer Category Smaller Reporting Company    
Trading Symbol WATT    
Entity Common Stock, Shares Outstanding   12,796,502dei_EntityCommonStockSharesOutstanding  
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2014    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2014    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 99,383,907dei_EntityPublicFloat