Temporary Equity	3 Months Ended
Temporary Equity	Aug. 31, 2024
Temporary Equity Disclosure [Abstract]
Temporary Equity	Temporary Equity Preferred Stock Series E Redeemable Preferred Stock During the three months ended August 31, 2024, the Company closed on four offerings of the Series E Redeemable Preferred Stock (the “Series E Preferred Stock”). The Company sold total shares of 301,673 for proceeds of $6.9 million net of issuance costs of $0.6 million. The shares of Series E Preferred Stock have no voting or conversion rights. Holders of the Series E Preferred Stock are entitled to receive cumulative dividends at a fixed rate of 9.0% per annum. Dividends are calculated based on a 360-day year, declared and accrued monthly, and payable at the discretion of the Board of Directors out of legally available funds. Dividends must be fully paid for all past periods before any distributions can be made to common stockholders or any junior series of equity securities. During the three months ended August 31, 2024, the Company declared and paid approximately $44,000 of dividends related to Series E preferred stock as presented on the unaudited condensed consolidated statement of operations. The Series E Preferred Stock ranks senior to all classes of common stock and junior to all existing and future debt of the Company. Additionally, it is on parity with any future series of preferred stock with substantially identical terms but may rank junior to any future series of preferred stock if the holders of such series are entitled to rights and preferences with priority over the holders of the Series E Preferred Stock. In the event of liquidation, holders are entitled to receive $25.00 per share (the “Series E Stated Value”) plus any accrued but unpaid dividends before any distributions are made to common stockholders. The Series E Preferred Stock has no stated maturity and remains outstanding indefinitely unless redeemed or repurchased by the Company. Holders may require the Company to redeem any portion of their Series E Preferred Stock at any time for a "Settlement Amount" calculated as the Series E Stated Value plus any unpaid dividends, less a Holder Optional Redemption Fee, equal to a percentage of the Series E Stated Value based on the year when the redemption occurs as follows: 9.00% prior to the first anniversary of the respective tranche closing date (the "Original Issuance Date"); 7.00% on or after the first anniversary but prior to the second anniversary of the Original Issuance Date; 5.00% on or after the second anniversary but prior to the third anniversary of the Original Issuance Date: and 0.00% on or after the third anniversary of the Original Issuance Date. The Settlement Amount can be settled in cash or shares of common stock, subject to a share cap, which limits the total shares deliverable upon redemption to 19.99% of the common stock outstanding prior to the Series E Preferred Stock offering (25,475,751 shares, the “Share Cap”). Any portion of the Settlement Amount exceeding this cap will be settled in cash. The Company may also redeem shares of Series E Preferred Stock after the second anniversary of the original issuance date, with a minimum notice of 10 days, at the Company Optional Redemption Settlement Amount, which is equal to the Series E Stated Value per share plus any unpaid and accrued dividends. If the Company elects to pay the redemption amount in shares, then the number of shares to be delivered will be calculated as the Company Optional Redemption Settlement Amount divided by the closing price per share of the common stock on the date of the Company Optional Redemption exercise, subject to the Share Cap. The Series E Preferred Stock offering was terminated on August 9, 2024. Series F Convertible Preferred Stock On August 29, 2024, the Company entered into a securities purchase agreement for the private placement of 53,191 shares of Series F Convertible Preferred Stock, par value $0.001 per share, including 3,191 shares representing an original issue discount of 6%. The transaction closed on August 30, 2024, for total proceeds of $50.0 million, prior to fees paid to Northland Securities, Inc. for their role as placement agent in an amount equal to 3.5% of the total proceeds. The shares of Series F Convertible Preferred Stock are convertible into shares of common stock only upon the receipt of shareholder approval. Holders of the Series F Convertible Preferred Stock are entitled to cumulative preferential dividends at an annual rate of 8.0% of the Stated Value of $1,000 per share (the “Series F Stated Value”), payable quarterly in arrears. Dividends are calculated based on a 360-day year, declared and accrued quarterly, and payable at the discretion of the Board of Directors out of legally available funds. Dividends must be fully paid for all past periods before any distributions can be made to common stockholders or any junior series of equity securities. The Series F Convertible Preferred Stock ranks senior to all classes of common stock and junior to all existing and future debt of the Company. In the event of liquidation, holders are entitled to receive the Series F Stated Value plus any accrued but unpaid dividends before any distributions are made to common stockholders. Series F Convertible Preferred Stock is on parity with the Series E Preferred Stock and any future series of preferred stock with substantially identical terms. The holders of the Series F Convertible Preferred Stock have no voting rights, unless and until the receipt of shareholder approval. Upon the receipt of shareholder approval, the Series F Convertible Preferred Stock will vote on an as-converted basis, subject to a cap equal to the greater of (x) the conversion price then in effect or (y) $4.0638. Holders have the right to require the Company to redeem the Series F Convertible Preferred Stock under certain conditions, including a Change of Control or Trading Failure, each as defined in the Series F Convertible Preferred Stock certificate of designation. If there is a Change of Control, the redemption price is the greater of the Series F Stated Value or the amount that would have been received if the Series F Convertible Preferred Stock had been converted into common stock immediately prior to the redemption event. If there is a Trading Failure, the redemption price is the greater of the Series F Stated Value or the product of the lowest conversion price during the period beginning on the date immediately preceding the Trading Failure and ending on the date the holder delivers a Redemption Notice, multiplied by the number of shares of common stock into which the preferred stock is convertible at the then-effective conversion price. Additionally, holders have a one-time right to require the Company to redeem their shares between December 31, 2024, and January 10, 2025 in which case the redemption price is the Series F Stated Value. Further, upon receipt of shareholder approval of the conversion feature of the Series F Convertible Preferred Stock, if the VWAP for any 20 Trading Days during any 30 consecutive trading day period, beginning with the original issuance date of the applicable preferred stock, exceeds two hundred percent (200%) of the conversion price then in effect, the Company may, at any time cause the holder to convert all or part of the holder’s preferred stock.