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Condensed Consolidated Financial Statements Detail (Tables) | 6 Months Ended
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Jun. 30, 2021
Condensed Consolidated Financial Statements Detail [Abstract] |
Accrued and Other Liabilities | Accrued and other liabilities consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ |  | 2021 |  | 2020
Accrued legal and accounting fees | ​ | $ | 454 | ​ | $ | 351
Accrued incentive compensation | ​ | ​ | 466 | ​ | ​ | 71
Accrued payroll and other | ​ |  | 139 | ​ |  | 220
Total | ​ | $ | 1,059 | ​ | $ | 642
​
Reconciliation of Numerator and Denominator Used in Calculation of Basic and Diluted Net (Loss) per Share Available to Common Stockholders | The following is a reconciliation of the numerator (net loss) and the denominator (number of shares) used in the calculation of basic and diluted net loss per share attributable to common stockholders (in thousands, except per share amounts): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | Six Months Ended June 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Numerator |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Net loss | ​ | $ | (2,237) | ​ | $ | (3,533) | ​ | $ | (9,610) | ​ | $ | (8,291)
Less: Series A accumulated dividends | ​ |  | (530) | ​ |  | — | ​ |  | (1,061) | ​ | ​ | —
Less: Series B accumulated dividends | ​ |  | (763) | ​ |  | — | ​ |  | (763) | ​ | ​ | —
Net loss available to common stockholders, basic and diluted | ​ | $ | (3,530) | ​ | $ | (3,533) | ​ | $ | (11,434) | ​ | $ | (8,291)
​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​
Denominator | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Weighted average shares used in computing basic and diluted net loss per share available to common stockholders | ​ |  | 11,285 | ​ |  | 10,824 | ​ |  | 11,263 | ​ |  | 10,292
Basic and diluted net loss per share of common stock | ​ | $ | (0.31) | ​ | $ | (0.33) | ​ | $ | (1.02) | ​ | $ | (0.81)
​
Outstanding Securities Considered Anti-Dilutive | The following table shows the weighted-average outstanding securities considered anti-dilutive and therefore excluded from the computation of diluted net loss per share attributable to common stockholders (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | Six Months Ended June 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Convertible preferred stock | ​ | 5,003 | ​ | 5,196 | ​ | 5,003 | ​ | 5,726
Common stock options |  | 377 |  | 564 |  | 318 | ​ | 578
Warrants for common stock |  | 5 |  | 19 |  | 5 | ​ | 19
Total |  | 5,385 |  | 5,779 |  | 5,326 |  | 6,323

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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