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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
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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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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840 + Details
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