Quarterly report pursuant to Section 13 or 15(d)

Investment in Unconsolidated Affiliate - Narrative (Details)

v3.19.3
Investment in Unconsolidated Affiliate - Narrative (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
Jan. 30, 2019
Sep. 30, 2019
Exoskeleton Intelligent Robotics Co. Limited    
Schedule of Equity Method Investments [Line Items]    
Right to receive ownership percentage 20.00%  
Direct costs   $ 36
Two Other Parties | Exoskeleton Intelligent Robotics Co. Limited    
Schedule of Equity Method Investments [Line Items]    
Payment to acquire investment $ 92,000  
Investment agreement in years 10 years  
Zhejiang Youchuang Venture Capital Investment Co., Ltd | Ekso Bionics Holdings, Inc.    
Schedule of Equity Method Investments [Line Items]    
Aggregate investment $ 10,000  
Financing receivable $ 5,000  
Volume weighted average price, trading days 20 days  
Common Stock    
Schedule of Equity Method Investments [Line Items]    
Number of shares sold (in shares) 3,067  
Amount received from sale of shares $ 5,000  
Price per share sold (in dollars per share) $ 1.63  
Anti-dilution period 60 days  
Issuance costs $ 8  
Maximum | Zhejiang Youchuang Venture Capital Investment Co., Ltd | Ekso Bionics Holdings, Inc.    
Schedule of Equity Method Investments [Line Items]    
Equity price percentage higher or lower than first investment 20.00%  
Minimum | Zhejiang Youchuang Venture Capital Investment Co., Ltd | Ekso Bionics Holdings, Inc.    
Schedule of Equity Method Investments [Line Items]    
Equity price percentage higher or lower than first investment 80.00%