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Income Taxes (Details) - Schedule of deferred tax assets - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Income Taxes (Details) - Schedule of deferred tax assets [Line Items] |  |
Deferred tax assets before valuation allowance | $ 26,959 | $ 17,783
Less-valuation allowance | (26,959) | (17,783)
Net deferred tax assets |  |
Reserves and allowances [Member] |  |
Income Taxes (Details) - Schedule of deferred tax assets [Line Items] |  |
Deferred tax assets before valuation allowance | 190 | 173
Temporary differences [Member] |  |
Income Taxes (Details) - Schedule of deferred tax assets [Line Items] |  |
Deferred tax assets before valuation allowance | 3,644 | 2,204
Issuance costs [Member] |  |
Income Taxes (Details) - Schedule of deferred tax assets [Line Items] |  |
Deferred tax assets before valuation allowance | 957 |
Loss carryforward [Member] |  |
Income Taxes (Details) - Schedule of deferred tax assets [Line Items] |  |
Deferred tax assets before valuation allowance | $ 22,168 | $ 15,406

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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