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General (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands		6 Months Ended	12 Months Ended
	Nov. 28, 2016	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Common stock, par value		$ 0.01	$ 0.01	$ 0.01
Reverse stock split	one-to-nine Reverse Stock Split
Cash and cash equivalent		$ 8,020	$ 10,787	$ 2,709
September 4, 2018 [Member]
Reverse stock split		1:15 reverse Stock Split	1:15 reverse Stock Split	1:15 reverse Stock Split
Microbot Israel [Member]
Conversion value of shares	2.9 shares
Common stock, par value	$ 0.01
Reverse stock split	one for nine reverse stock split
Conversion option to purchase common stock	176,182
Restricted shares issued	7,802,639
Microbot Israel [Member] | Before Reverse Split [Member]
Conversion value of shares	2.9 shares
Conversion option to purchase common stock	2,614,916
Restricted shares issued	7,802,639
Microbot Israel [Member] | Former Microbot Israel Shareholders [Member]
Conversion of stock number of common stock issued	1,788,884
Microbot Israel [Member] | Former Microbot Israel Shareholders [Member] | Before Reverse Split [Member]
Conversion of stock number of common stock issued	26,550,974

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Conversion value of shares.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Face amount or stated value per share of common stock.

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The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of restricted shares issued as compensation, net of shares for the payment of withholding taxes. This element is to be used only if shares are used in lieu of cash to satisfy all or a portion of withholding taxes.

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Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

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