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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2021
Summary of Significant Accounting Policies |
Schedule of reconciliation of shares used to determine net loss per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months |  | Six Months
​ | ​ | ended June 30, | ​ | ended June 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Net income (loss) | ​ | $ | 11,277 | ​ | $ | 2,386 | ​ | $ | 10,201 | ​ | $ | (499)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of shares - basic | ​ |  | 43,498,908 | ​ |  | 42,628,560 | ​ |  | 43,426,463 | ​ |  | 42,628,560
Shares underlying options | ​ | ​ | 2,919,899 | ​ | ​ | 289,002 | ​ | ​ | 2,418,082 | ​ | ​ | —
Weighted average number of shares – diluted | ​ | ​ | 46,418,807 | ​ | ​ | 42,917,562 | ​ | ​ | 45,844,545 | ​ | ​ | 42,628,560

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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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