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Stockholders' Equity - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Jun. 30, 2021
Class Of Stock [Line Items] |  |
Other dividends, preferred shares | $ 0 |
Preferred stock, voting rights | Preferred shares have no voting rights. |
Series D Convertible Preferred Stock |  |
Class Of Stock [Line Items] |  |
Preferred stock, shares issued (in shares) | 280,898 | 280,898
Preferred stock, shares outstanding (in shares) | 280,898 | 280,898
Preferred shares convertible to common stock | one-to-one basis |

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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 + Details
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