Annual report pursuant to Section 13 and 15(d)

The Merger, Offering and Other Related Transactions (Merger, Narrative) (Details)

v2.4.1.9
The Merger, Offering and Other Related Transactions (Merger, Narrative) (Details)
 12 Months Ended
Dec. 31, 2014
The Merger, Offering and Other Related Transactions [Abstract]  
Common stock issued for acquisition 5,280,368us-gaap_StockIssuedDuringPeriodSharesAcquisitions
Previously held common stock issued for acquisition 4,500,600ekso_StockIssuedDuringPeriodSharesAcquisitionsPreviouslyHeld
Number of newly issued common stock issued for acquisition 779,768ekso_StockIssuedDuringPeriodSharesAcquisitionsNewIssues
Equity interest percentage 6.80%ekso_EquityInterest
Series A [Member]  
Business Acquisition [Line Items]  
Conversion ratio 1.6290ekso_ConversionOfStockConversionRatio
/ us-gaap_StatementClassOfStockAxis
= ekso_SeriesAconvertiblePreferredStockMember
Series A-2 [Member]  
Business Acquisition [Line Items]  
Conversion ratio 1.9548ekso_ConversionOfStockConversionRatio
/ us-gaap_StatementClassOfStockAxis
= ekso_SeriesAtwoConvertiblePreferredStockMember
Series B [Member]  
Business Acquisition [Line Items]  
Conversion ratio 1.9548ekso_ConversionOfStockConversionRatio
/ us-gaap_StatementClassOfStockAxis
= ekso_SeriesBconvertiblePreferredStockMember
Common stock [Member]  
Business Acquisition [Line Items]  
Shares issued in business acquisition 42,615,556us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= us-gaap_CommonStockMember
Conversion ratio 1.5238ekso_ConversionOfStockConversionRatio
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= us-gaap_CommonStockMember
Warrants [Member]  
Business Acquisition [Line Items]  
Shares issued in business acquisition 621,361us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= us-gaap_WarrantMember
Stock options [Member]  
Business Acquisition [Line Items]  
Shares issued in business acquisition 7,602,408us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= us-gaap_StockOptionMember
Shares converted in business acquisition 4,989,111ekso_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesConverted
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= us-gaap_StockOptionMember