Ekso Bionics Holdings, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Capitalization and Equity Structure (Narrative) (Details)

Capitalization and Equity Structure (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended			0 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 14, 2014	Nov. 30, 2014	Oct. 31, 2014
Capitalization and Equity Structure [Abstract]
Common stock, shares authorized	500,000,000us-gaap_CommonStockSharesAuthorized	60,952,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	101,621,358us-gaap_CommonStockSharesIssued	21,114,783us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	101,621,358us-gaap_CommonStockSharesOutstanding	21,114,783us-gaap_CommonStockSharesOutstanding
Preferred stock, shares authorized	10,000,000us-gaap_PreferredStockSharesAuthorized	33,523,600us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued	0us-gaap_PreferredStockSharesIssued	25,923,872us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding	0us-gaap_PreferredStockSharesOutstanding	25,923,872us-gaap_PreferredStockSharesOutstanding
Class of Stock [Line Items]
Stock Issued During Period Shares Conversion of Convertible Preferred Stock	26,691,084
Warrant Shares Issued	36,055,000	1,388,573				30,300,000
Gain (loss) on warrant liability	$ (16,485)us-gaap_FairValueAdjustmentOfWarrants	$ 186us-gaap_FairValueAdjustmentOfWarrants	$ 17us-gaap_FairValueAdjustmentOfWarrants
Proceeds from exercise of warrants, net of issuance costs	21,412us-gaap_ProceedsFromWarrantExercises
Transfer of warrant liability to equity	27,099ekso_TransferOfWarrantLiabilityToEquity
Warrants exercised	22,880,500ekso_ClassOfWarrantOrRightExercised
Warrants [Member]
Class of Stock [Line Items]
Exercise price						$ 2.00
Preferred stock [Member]
Class of Stock [Line Items]
Warrants exercised	767,212
Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period Shares Conversion of Convertible Preferred Stock				26,691,084
Warrant Shares Issued		621,361
Exercise price	$ 1.38
Offer To Amend And Exercise [Member]
Class of Stock [Line Items]
Gain (loss) on warrant liability	16,485
Proceeds from exercise of warrants, net of issuance costs						22,756
Warrant solicitation costs						1,467
Transfer of warrant liability to equity					$ 27,099
Offer To Amend And Exercise [Member] \| Warrants [Member]
Class of Stock [Line Items]
Exercise price						$ 1.00
Series A [Member]
Capitalization and Equity Structure [Abstract]
Preferred stock, shares issued		7,324,424
Preferred stock, shares outstanding		7,324,424
Class of Stock [Line Items]
Conversion ratio	1.6290
Series A-2 [Member]
Capitalization and Equity Structure [Abstract]
Preferred stock, shares issued		8,474,867
Preferred stock, shares outstanding		8,474,867
Class of Stock [Line Items]
Conversion ratio	1.9548
Series B [Member]
Capitalization and Equity Structure [Abstract]
Preferred stock, shares issued		10,124,581
Preferred stock, shares outstanding		10,124,581
Class of Stock [Line Items]
Conversion ratio	1.9548