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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.

X
- Definition Cashless exercise warrants. + References No definition available. + Details
Name: | MBOT_CashlessExerciseShares
Namespace Prefix: | MBOT_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Designated preferred stock. + References No definition available. + Details
Name: | MBOT_DesignatedPreferredStock
Namespace Prefix: | MBOT_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair market value percentage. + References No definition available. + Details
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