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Supplementary Balance Sheet Information (Details) - Schedule of cash cash equivalents and deposits - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Schedule of cash cash equivalents and deposits [Abstract]
Cash		$ 4,221	$ 2,681
Cash equivalents		4,039	3,798
Total cash and cash equivalents		8,260	6,479
Short-term bank deposits	[1]	$ 7,180	$ 6,795
[1] The average rate of short-term deposits is 1.27% and 2.42%, as of December 31, 2020 and 2019, respectively.

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Total amount of total cash and cash equivalents.

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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. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of 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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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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