Ekso Bionics Holdings, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Capitalization and Equity Structure - Additional Information (Details)

Capitalization and Equity Structure - Additional Information (Details) $ / shares in Units, $ in Thousands		1 Months Ended			3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 24, 2020	Jul. 28, 2020 USD ($) shares	Jun. 30, 2020 USD ($) $ / shares shares	Dec. 31, 2015 shares	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($)	Dec. 31, 2019 $ / shares shares	May 31, 2019 shares	Sep. 30, 2017 shares
Class of Stock [Line Items]
Reverse stock split	0.067
Common stock, shares authorized (in shares)			141,429,000		141,429,000		141,429,000		141,429,000
Preferred stock, shares authorized (in shares)			10,000,000		10,000,000		10,000,000		10,000,000
Common stock, shares outstanding (in shares)			7,814,000		7,814,000		7,814,000		5,795,000
Common stock, shares issued (in shares)			7,814,000		7,814,000		7,814,000		5,795,000
Preferred stock, shares outstanding (in shares)			0		0		0		0
Preferred stock, shares issued (in shares)			0		0		0		0
Warrants issued (in shares)							996,000
Warrant expenses \| $					$ 329	$ 706	$ 329	$ 706
Class of warrant or right, outstanding			1,945,000		1,945,000		1,945,000		1,178,000
Loss on modification of warrants \| $					$ 0	$ 0	$ 0	257
Proceeds from exercise of warrants, net \| $					$ 785		$ 785	$ 0
June 2020 Warrants
Class of Stock [Line Items]
Class of warrant or right expiration period			5 years 6 months
June 2020 Investor Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share) \| $ / shares			$ 5.18		$ 5.18		$ 5.18
Warrants issued (in shares)							874,000
Class of warrant or right expiration period			5 years 6 months				5 years 6 months
Class of warrant or right, outstanding			874,000		874,000		874,000		0
June 2020 Investor Warrants \| Subsequent Event
Class of Stock [Line Items]
Proceeds from exercise of warrants, net \| $		$ 2,422
Warrants exercised (in shares)		468,000
June 2020 Placement Agent Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share) \| $ / shares			$ 5.64		$ 5.64		$ 5.64
Class of warrant or right cash fee percentage			7.00%
Class of warrant or right cash fee \| $			$ 552
Class of warrant or right management fee percentage			1.00%
Class of warrant or right management fee \| $			$ 79
Percentage of warrants issued to purchase shares of common stock			7.00%
Warrants issued (in shares)							122,000
Class of warrant or right expiration period							5 years
Warrant expenses \| $			$ 98
Issuance costs \| $			808
Fair value of warrants \| $			$ 309		$ 309		$ 309
Class of warrant or right, outstanding			122,000		122,000		122,000		0
December 2019 Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share) \| $ / shares			$ 8.10		$ 8.10		$ 8.10
Warrants issued (in shares)							0
Class of warrant or right expiration period							5 years
Class of warrant or right, outstanding			556,000		556,000		556,000		556,000
December 2019 Placement Agent Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share) \| $ / shares			$ 8.44		$ 8.44		$ 8.44
Warrants issued (in shares)							0
Class of warrant or right expiration period							5 years
Class of warrant or right, outstanding			52,000		52,000		52,000		52,000
May 2019 Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share) \| $ / shares			$ 3.52		$ 3.52		$ 3.52
Warrants issued (in shares)							0
Class of warrant or right expiration period							5 years
Class of warrant or right, outstanding			221,000		221,000		221,000		444,000	444,000
2017 Information Agent Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share) \| $ / shares			$ 22.50		$ 22.50		$ 22.50
Warrants issued (in shares)							0
Class of warrant or right expiration period							3 years
Class of warrant or right, outstanding			13,000		13,000		13,000		13,000		13,000
2015 Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share) \| $ / shares			$ 41.25		$ 41.25		$ 41.25		$ 56.10
Warrants issued (in shares)				141,000			0
Class of warrant or right expiration period							5 years
Class of warrant or right, outstanding			107,000		107,000		107,000		107,000
Warrants exercised (in shares)							0		35,000
Pre-2014 warrants
Class of Stock [Line Items]
Exercise price (in dollars per share) \| $ / shares			$ 144.90		$ 144.90		$ 144.90
Warrants issued (in shares)							0
Class of warrant or right, outstanding			0		0		0		6,000
Direct offering
Class of Stock [Line Items]
Aggregate proceeds \| $			$ 7,890
Issuance costs \| $			1,117
Direct offering \| June 2020 Warrants
Class of Stock [Line Items]
Aggregate proceeds \| $			2,650
Issuance costs \| $			$ 329
Common stock \| Direct offering
Class of Stock [Line Items]
Number of shares sold (in shares)			1,748,000
Aggregate proceeds \| $			$ 5,240
Issuance costs \| $			$ 788
Sale of shares (in dollars per share) \| $ / shares			$ 4.51		$ 4.51		$ 4.51
Common stock \| Direct offering \| June 2020 Investor Warrants
Class of Stock [Line Items]
Number warrants called (in shares)			874,000		874,000		874,000