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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Subsequent to June 30, 2023, the Company issued 421,856 common shares for the conversion of 2,953 Series H Preferred Shares. Private Placement On August 11, 2023, the Company entered into a Securities Purchase Agreement (the “Purchase Agreement”) pursuant to which the Company issued to two investors, a total of 13,764 of the Company’s Series H Preferred Shares and a total of 1,966,292 common share purchase warrants (the “Warrants”), each of which entitled the holder to purchase one common share of the Company (the “Warrant Shares”). Per the terms of the Purchase Agreement, the Company will receive gross proceeds of $3.5 million. The Company issued a total of 1,377 Series H Preferred Shares and 196,629 Warrants as a finder’s fee for the transaction. The Warrants issued to the investors are exercisable beginning February 12, 2024 at an initial exercise price of $2.75 per share and have a term of three years from the date of issuance. The Warrants issued for a finder’s fee are immediately exercisable. The exercise price of the Warrant is subject to adjustment for certain stock splits, stock combinations and dilutive share issuances. Pursuant to the terms of the Purchase Agreement, the Company will reserve for issuance the maximum aggregate number of common shares that are issuable upon exercise in full of the Warrants at any time. Amendment to Hertford Agreement On August 11, 2023, the Company entered into an Amended and Restated Agreement (the “Hertford Amendment”) with Hertford Advisors Ltd. and certain other parties listed in the Hertford Amendment (together, the “Hertford Group”), which amends and restates in its entirety the purchase agreement between the Company and Hertford Advisors Ltd. dated July 31, 2021, as modified by the amendment to such agreement dated November 7, 2022 (together, the “Original Hertford Agreement”). As an inducement to enter into the Hertford Amendment, the Company shall issue to Hertford 1,376 Series H Preferred Shares and 800,000 Warrants. Hertford shall have the right to exchange 14,980 Series H Preferred Shares for Series H Preferred Shares held by other persons (the “Exchanged Series H Preferred Shares”), provided that at no time shall any recipient of Exchanged Series H Preferred Shares be permitted to convert Series H Preferred Shares that, when aggregated with any common shares beneficially owned by the recipient of Exchanged Series H Preferred Shares prior to such conversion, would result in exceeding 9.99% of the common shares outstanding immediately after giving effect to such conversion. The offer and sale of the Series H Preferred Shares and the Warrants have not been registered under the Securities Act and may not be offered or sold in the United States in the absence of an effective registration statement or exemption from the registration requirements, and in each case in compliance with applicable state securities laws. Convertible Debt On August 14, 2023, in accordance with the terms of the LDA Purchase Agreement prepayment option, the Company repaid the full amount of the LDA Note, including interest and fees, in the amount of $1.3 million. As a result of the Company’s repayment, the Company shall have the right to redeem from the holder of the LDA Warrants 40% of the then outstanding LDA Warrants.