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Share Capital (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands																1 Months Ended					3 Months Ended		6 Months Ended		12 Months Ended
		Jan. 23, 2019	Jan. 21, 2019	Jan. 15, 2019	Jan. 14, 2019	Aug. 13, 2018	May 24, 2018	Apr. 10, 2018	Dec. 28, 2017	Dec. 06, 2017	Sep. 14, 2017	Jun. 05, 2017	Jan. 05, 2017	Dec. 27, 2016	May 02, 2016	Feb. 28, 2018	Nov. 30, 2017	May 31, 2017	Dec. 31, 2016	Sep. 30, 2014	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Jan. 02, 2019
Authorized capital stock																					221,000,000		221,000,000
Common stock, shares authorized																					220,000,000		220,000,000		220,000,000
Ordinary shares, par value																					$ 0.01		$ 0.01		$ 0.01
Common stock, shares issued																					4,307,666		4,307,666		3,012,343
Common stock, shares outstanding																					4,307,666		4,307,666		3,012,343
Proceeds from issuance of shares																							$ 9,562
Number of stock options granted																							11,630		10,000
Weighted-average exercise price per share, granted																							$ 8.6		$ 9.00
Stock-based employee compensation																					$ 295	$ 406	$ 610	822
Number of option exercised																									2,487
Repurchase of common stock																							$ 500
Fair market value percentage																					25.00%		25.00%
Temporary equity value																							$ 500
Accumulated Deficit [Member]
Cumulative effect adjustment																						14		14	$ 20	$ 20
Purchaser [Member]
Number of common stock shares sold during the period													47,163
Common stock price per share													$ 74.00
Proceeds from issuance of shares													$ 3,500
Placement agent fee and expenses													$ 210
Investor [Member]
Number of common stock shares sold during the period												252,652
Common stock price per share												$ 40.50
Proceeds from issuance of shares												$ 10,125
Placement agent fee and expenses												$ 922
Investor [Member] | Securities Purchase Agreement [Member]
Number of common stock shares sold during the period		250,000		590,000	330,000
Common stock price per share		$ 9.875		$ 10.00	$ 6.50
Proceeds from issuance and sale of stock		$ 2,470		$ 5,900
Board of Directors [Member]
Number of stock options granted			11,630							12,698
Weighted-average exercise price per share, granted			$ 8.60							$ 15.75
Stock option vested term			3 years							3 years
Board of Directors [Member] | General and Administrative Expense [Member]
Stock-based employee compensation																					$ 13	26	27	41
Board of Directors [Member] | NIS [Member]
Ordinary shares, par value															$ 0.001
Harel Gadot [Member]
Number of stock options granted											120,848
Weighted-average exercise price per share, granted											$ 15.75
Harel Gadot [Member] | General and Administrative Expense [Member]
Stock-based employee compensation																					120	120	240	339
Harel Gadot [Member] | Minimum [Member]
Stock option vested term											3 years
Harel Gadot [Member] | Maximum [Member]
Stock option vested term											5 years
Hezi Himelfarb [Member]
Number of stock options granted											72,508
Weighted-average exercise price per share, granted											$ 19.35
Stock option vested term											3 years
Hezi Himelfarb [Member] | Research and Development Expense [Member]
Stock-based employee compensation																					107	123	214	231
Employees [Member]
Ordinary shares, par value																$ 0.001
Number of stock options granted									66,036
Weighted-average exercise price per share, granted									$ 15.3
Stock option vested term									3 years
Number of option exercised																2,487
Employees [Member] | Research and Development Expense [Member]
Stock-based employee compensation																					40	139	79	211
Employees and Consultant [Member]
Number of option exercised																	31,453
Employees and Consultant [Member] | NIS [Member]
Ordinary shares, par value																	$ 0.001
Non-Executive Officer [Member]
Number of stock options granted						10,000
Weighted-average exercise price per share, granted						$ 9
Stock option vested term						3 years
Non-Executive Officer [Member] | Research and Development Expense [Member]
Stock-based employee compensation																					6	0	18	0
Board of Directors [Member]
Stock-based employee compensation																					$ 7	$ 0	$ 30	$ 0
CardioSert Ltd [Member]
Number of common shares acquired							6,738	6,738															6,738
CardioSert Ltd [Member] | Research and Development Expense [Member]
Acquisition price of assets							$ 74
Microbot Israel [Member] | Board of Directors [Member]
Number of stock options granted															33,333					26,906
Number of stock option granted as adjusted to reflect merger															96,482					77,846
Weighted-average exercise price per share, granted															$ 20.25					$ 12.00
Stock option merger retroactively adjusted exercise price per share															$ 7.05					$ 4.20
Before Reverse Split [Member] | Purchaser [Member]
Number of common stock shares sold during the period													700,000
Common stock price per share													$ 5.00
Before Reverse Split [Member] | Investor [Member]
Number of common stock shares sold during the period												3,750,000
Common stock price per share												$ 2.70
Before Reverse Split [Member] | Board of Directors [Member]
Number of stock options granted										190,475
Weighted-average exercise price per share, granted										$ 1.05
Before Reverse Split [Member] | Harel Gadot [Member]
Number of stock options granted											1,812,712
Weighted-average exercise price per share, granted											$ 1.05
Before Reverse Split [Member] | Hezi Himelfarb [Member]
Number of stock options granted											1,087,627
Weighted-average exercise price per share, granted											$ 1.29
Before Reverse Split [Member] | Employees [Member]
Number of stock options granted									990,543
Weighted-average exercise price per share, granted									$ 1.02
Number of option exercised																37,300
Before Reverse Split [Member] | Employees and Consultant [Member]
Number of option exercised																	471,794
Before Reverse Split [Member] | Non-Executive Officer [Member]
Number of stock options granted						150,000
Weighted-average exercise price per share, granted						$ 0.6
Before Reverse Split [Member] | CardioSert Ltd [Member]
Number of common shares acquired							100,000	100,000
Before Reverse Split [Member] | Microbot Israel [Member] | Board of Directors [Member]
Number of stock options granted															500,000					403,592
Weighted-average exercise price per share, granted															$ 1.35					$ 0.80
Common Stock [Member]
Conversion of stock into shares	[1]																					101,056		202,126
Rights to acquire shares of common stock														655,962
Number of option exercised	[1]
Common Stock [Member] | Board of Directors [Member]
Number of stock options granted			11,630
Common Stock [Member] | Directors [Member]
Number of stock options granted										12,698
Common Stock [Member] | Employees [Member]
Number of stock options granted									66,036
Pre-Funded Warrant [Member] | Investor [Member] | Securities Purchase Agreement [Member]
Warrant to purchase for common stock					125,323
Warrant price per share					$ 6.49
Proceeds from issuance and sale of stock					$ 3,000
Series A Convertible Preferred Stock [Member]
Preferred stock, par value																		$ 0.01	$ 0.01
Conversion of stock into shares																		67	67
Designated preferred stock														9,736
Series A Convertible Preferred Stock [Member] | Before Reverse Split [Member]
Conversion of stock into shares																		1,000	1,000
Common Stock [Member] | Before Reverse Split [Member]
Rights to acquire shares of common stock														9,735,925
[1] Share data as of December 31, 2017, March 31, 2018, and June 30, 2018 and for the periods then ended represent the number of shares adjusted to retroactively reflect the 1:15 reverse stock split effected on September 4, 2018. Refer to Note 1 for further information.

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No definition available.

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