| Condensed Statements of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | |
|---|---|---|
| Jun. 30, 2021 | Mar. 31, 2021 | |
| Common Stock | ||
| Issuance costs | $ 237 | $ 67 | 
| X | ||||||||||
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
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- Details 
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