Convertible Preferred Stock and Stockholders' Equity - securities purchase agreement (Details) - USD ($) |
Jun. 09, 2020 |
Jun. 04, 2020 |
May 18, 2020 |
Feb. 06, 2020 |
Apr. 18, 2019 |
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| Class of Stock [Line Items] | |||||
| Issuance of common stock, net of shelf offering costs (in shares) | 60,250 | ||||
| Warrant to purchase shares | 4,553 | 12,756 | |||
| Securities Purchase Agreement | |||||
| Class of Stock [Line Items] | |||||
| Issuance of common stock, net of shelf offering costs (in shares) | 2,040,000 | 2,275,000 | |||
| warrant term | 5 years 6 months | 5 years 6 months | |||
| Warrant to purchase shares | 2,040,000 | 2,275,000 | |||
| Exercise price of warrants | $ 2.61 | $ 2.55 | |||
| Gross proceeds from offering | $ 5,324,000 | $ 5,801,000 | |||
| Cash fees paid | $ 426,000 | $ 464,000 | |||
| Cash fees paid percentage | 8.00% | 8.00% |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage of cash fees of aggregate purchase price paid by investors placed by Maxim and certain expenses. No definition available.
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- Definition Amount of one time cash fees paid. No definition available.
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- Details
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