Energous Corporation Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)	3 Months Ended
Summary of Significant Accounting Policies (Details)	Mar. 31, 2015	Mar. 31, 2014
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	3,511,890	4,133,540
Convertible Notes Principal [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	0	1,833,336
Convertible Notes Accrued Interest [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	0	95,233
Consulting Warrant [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	278,228	278,228
Financing Warrant [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	152,778	152,778
IPO Warrants [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	460,000	0
IR Consulting Warrant [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	36,000	36,000
IR Incentive Warrant [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	15,000
Stock Option [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	1,607,075	1,737,965
Restricted Stock Units (RSUs) [Member]
Summary Of Significant Accounting Policies [Line Items]
Potentially dilutive securities	962,809	0