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Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 6 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Jun. 30, 2021
Class Of Stock [Line Items] |  |
Other dividends, preferred shares | $ 0 |
Preferred stock, voting rights | Preferred shares have no voting rights. |
Description of Nasdaq compliance | On December 21, 2021, the Company received a deficiency letter from the Nasdaq Listing Qualifications Department of the Nasdaq Stock Market LLC (“NASDAQ”) notifying the Company of its failure to maintain compliance with the $1.00 per share of common stock minimum closing bid price requirement over the preceding 30 consecutive business days as required by Marketplace Rule 5550(a)(2). The letter stated that the Company has 180 calendar days, or until June 20, 2022, to regain compliance. If at any time during this 180-day period the closing bid price of the Company’s common stock is at least $1.00 per share for a minimum of ten consecutive business days, the Company’s compliance will be regained. In the event the Company does not regain compliance in that period, it may be eligible to apply for an additional 180 calendar days to regain compliance. To qualify, the Company will be required to meet the continued listing requirement for market value of publicly held shares and all other initial listing standards for The NASDAQ Capital Market, with the exception of the bid price requirement. The Company will also need to provide written notice of its intention to cure the deficiency during the second compliance period. However, if it appears to the NASDAQ staff that the Company will neither be able nor otherwise eligible to cure the deficiency, it may be subject to delisting by NASDAQ. The Company has not yet determined what action, if any, it will take in response to this letter, although the Company intends to monitor the closing bid price of its common stock between now and June 19, 2022, and to consider available options if its common stock does not trade at a level likely to result in the Company regaining compliance with The NASDAQ Capital Market minimum closing bid price requirement. |
Failure to maintain common stock minimum closing bid price | $ 1.00 |
Compliance regain calendar days | 180 days |
Closing bid price period | 180 days |
Minimum closing bid price per share | $ 1.00 |
Additional compliance regain calendar days | 180 days |
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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