Share Capital (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands													1 Months Ended			12 Months Ended
		Aug. 13, 2018	May 24, 2018	Apr. 10, 2018	Feb. 28, 2018	Dec. 28, 2017	Dec. 06, 2017	Sep. 14, 2017	Jun. 05, 2017	Jan. 05, 2017	Dec. 27, 2016	May 02, 2016	Nov. 30, 2017	May 31, 2017	Dec. 31, 2014	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016	Mar. 31, 2017
Preferred stock, par value																$ 0.01	$ 0.01
Authorized capital stock																221,000,000
Common stock, shares authorized																220,000,000	220,000,000
Ordinary shares, par value																$ 0.01	$ 0.01
Preferred stock, shares authorized																1,000,000	1,000,000
Common stock, shares issued	[1]															3,012,343	2,013,193
Common stock, shares outstanding	[1]															3,012,343	2,013,193
Preferred stock, shares issued																0	4,001
Preferred stock, shares outstanding																0	4,001
Proceeds from issuance of shares																	$ 12,702
Number of stock options granted																10,000	272,090	[2]
Weighted-average exercise price per share, granted																$ 9	$ 16.50	[2]
Stock-based employee compensation																$ 1,139	$ 254
Loss on extinguishment of convertible note																	2,364
Repurchase of common stock																$ 3,375
Fair market value percentage																25.00%
Temporary equity value																$ 500
General and Administrative Expense [Member]
Stock-based employee compensation																1,160	253
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										$ 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									$ 922
Board of Directors [Member]
Number of stock options granted							12,698
Weighted-average exercise price per share, granted							$ 15.75
Stock option vested term							3 years
Board of Directors [Member] | General and Administrative Expense [Member]
Stock-based employee compensation																67	5
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] | Minimum [Member]
Stock option vested term								3 years
Harel Gadot [Member] | Maximum [Member]
Stock option vested term								5 years
Harel Gadot [Member] | General and Administrative Expense [Member]
Stock-based employee compensation																581	156
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] | General and Administrative Expense [Member]
Stock-based employee compensation																431	92
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] | General and Administrative Expense [Member]
Stock-based employee compensation																307	0
Employees and Consultant [Member]
Number of option exercised													31,453
Employees and Consultant [Member] | NIS [Member]
Ordinary shares, par value													$ 0.001
Mr. Simon Sharon [Member]
Number of stock options granted		10,000
Weighted-average exercise price per share, granted		$ 9
Stock option vested term		3 years
Mr. Simon Sharon [Member] | General and Administrative Expense [Member]
Stock-based employee compensation																$ 11	0
Consultant [Member]
Stock-based employee compensation																	$ 225
Number of shares issued for services																	8,085
Warrant [Member]
Cashless exercise warrants																				52
Restricted Stock [Member] | Advisors [Member]
Common stock price per share																$ 19.2
Number of shares issued for services																525,706
Number of shares issued for services, value																$ 10,000
CardioSert Ltd [Member]
Number of common shares acquired			6,738	6,738												6,738
Number of common shares issued for acquisition			6,738	6,738												6,738
CardioSert Ltd [Member] | Research and Development Expense [Member]
Stock-based employee compensation			$ 74
Microbot Israel [Member] | General and Administrative Expense [Member]
Stock-based employee compensation																$ 675
Microbot Israel [Member] | Board of Directors [Member]
Number of stock options granted												33,333			26,906
Number of stock option granted as adjustment of 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] | Mr. Simon Sharon [Member]
Number of stock options granted		150,000
Weighted-average exercise price per share, granted		$ 0.6
Before Reverse Split [Member] | Consultant [Member]
Number of shares issued for services																	120,000
Before Reverse Split [Member] | Warrant [Member]
Cashless exercise warrants																				768
Before Reverse Split [Member] | Restricted Stock [Member] | Advisors [Member]
Common stock price per share																$ 1.28
Number of shares issued for services																7,802,639
Before Reverse Split [Member] | CardioSert Ltd [Member]
Number of common shares acquired			100,000	100,000
Number of common shares issued for acquisition			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	[3]															268,818	605,705
Rights to acquire shares of common stock											655,962
Number of option exercised	[3]															2,487	31,787
Number of shares issued during period	[3]																299,815
Common Stock [Member] | Directors [Member]
Number of stock options granted							12,698
Common Stock [Member] | Employees [Member]
Number of stock options granted						66,036
Series A Convertible Preferred Stock [Member]
Preferred stock, par value														$ 0.01					$ 0.01
Conversion of stock into shares														67		4,001	8,990		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]
Conversion of stock into shares																268,818	605,705
Cashless exercise warrants																				24
Common Stock [Member] | Before Reverse Split [Member]
Conversion of stock into shares																4,001,000	8,990,000
Cashless exercise warrants																				359
Rights to acquire shares of common stock											9,735,925

[1] December 31 2017 share data represents 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.

[2] December 31, 2018 and 2017 option data represents the number of shares adjusted to retroactively reflect the 1:15 Reverse Split effected on September 4, 2018. Refer to Note 1 for further information.

[3] December 31, 2016 and 2017 share data 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.