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Stockholders' Equity | 3 Months Ended
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Mar. 31, 2021
Stockholders' Equity |
Stockholders' Equity | 7. Stockholders’ Equity ​ At-the-Market Sales Agreement ​ In August 2019, the Company entered into an Open Market Sale Agreement (2019 Sales Agreement) with Jefferies, LLC (Jefferies), for the offer and sale of shares of its common stock having an aggregate offering of up to $25.0 million from time to time through Jefferies, acting as the Company’s sales agent. The issuance and sale of these shares by the Company pursuant to the 2019 Sales Agreement are deemed an “at-the-market” (ATM) offering under the Securities Act of 1933, as amended. Under the 2019 Sales Agreement, the Company agreed to pay Jefferies a commission of up to 3% of the gross proceeds of any sales made pursuant to the Sales Agreement. During the three months ended March 31, 2020, the Company received net proceeds of $2.1 million, after deducting commissions and expenses payable by the Company, from the sale of 468,427 shares of common stock pursuant to the 2019 Sales Agreement. The Company suspended sales under the 2019 Sales Agreement in March 2020 and terminated the ATM program in November 2020. ​

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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