Stockholders' Equity	12 Months Ended
May 31, 2025
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity Common Stock Increases In Authorized Shares On June 11, 2024, the Company filed a Certificate of Amendment (the “Certificate of Amendment”) to its Second Amended and Restated Articles of Incorporation, as amended (the “Articles of Incorporation”). Pursuant to the Certificate of Amendment, the number of authorized shares of common stock was increased to 300,000,000. The Certificate of Amendment became effective upon filing on June 11, 2024. Additionally, on November 20, 2024, the Company filed an amendment to its Articles of Incorporation, increasing the number of shares of common stock authorized for issuance to 400,000,000 shares and the number of shares of preferred stock authorized for issuance to 10,000,000 shares. Roth Capital Partners LLC On May 6, 2024, the Company began sales of common stock under an "at the market" sale agreement with Roth Capital Partners, LLC pursuant to which the Company could sell up to $25 million in aggregate proceeds of common stock. During the quarter ended August 31, 2024, the Company sold approximately 3.1 million shares for net proceeds of approximately $14.6 million with commission and legal fees related to the issuance of approximately $0.5 million. As of August 31, 2024, this offering was completed. At-the-Market Sales Agreement On July 9, 2024, the Company entered into a Sales Agreement (the “Sales Agreement”) with B. Riley Securities, Inc., BTIG, LLC, Lake Street Capital Markets, LLC, Northland Securities, Inc. and Roth Capital Partners, LLC (collectively, the “Agents”), pursuant to which the Company could offer and sell, from time to time, through the Agents, up to $125.0 million in shares of the Company’s common stock. During the fiscal quarter ended August 31, 2024, approximately 3.0 million shares of the Company’s common stock were issued and sold under the Sales Agreement for proceeds of $16.4 million net of issuance costs of $0.5 million. On October 30, 2024, the Company terminated its Sales Agreement with the Agents. Standby Equity Purchase Agreement ("SEPA") On August 28, 2024, the Company entered into the SEPA with YA Fund, which was amended on August 29, 2024. Pursuant to the SEPA, subject to certain conditions and limitations, the Company had the option, but not the obligation, to sell to YA Fund, and YA Fund was obligated to purchase, an aggregate amount of up to $250.0 million of common stock, at the Company’s request any time during the commitment period commencing on September 30, 2024, and terminating on October 1, 2027. In connection with the execution of the SEPA, the Company agreed to pay a structuring fee (in cash) to YA Fund in the amount of $25,000. Additionally, the Company agreed to pay a commitment fee of $2,125,000 to YA Fund, (the Commitment Fee”), in the form of 456,287 shares of common stock (the “Commitment Shares”), representing $2,125,000 divided by the average of the daily VWAPs of the common stock during the three trading days immediately prior to the date of the SEPA. On October 16, 2024, the Company entered into a letter agreement with YA Fund, whereby the Company agreed to satisfy its obligations with respect to the Commitment Fee in cash by increasing the principal amount due under the March Note in an equivalent amount, instead of issuing the Commitment Shares. The Commitment Fee was paid in full during the quarter ended May 31, 2025 as part of the repayment by the Company of the March Note. The SEPA was terminated on April 30, 2025. Private Placement On September 5, 2024, the Company entered into a securities purchase agreement with a group of institutional and accredited investors, NVIDIA and Related Companies, for the private placement (the “Private Placement”) of 49,382,720 shares of the Company’s common stock, par value $0.001 per share, at a purchase price of $3.24 per share, representing the last closing price of the common stock on the Nasdaq Global Select Market on September 4, 2024. The Private Placement closed during the three months ended November 30, 2024, with aggregate gross proceeds to the Company of approximately $160 million, before deducting offering expenses.

On June 11, 2024, the Company filed a Certificate of Amendment (the “Certificate of Amendment”) to its Second Amended and Restated Articles of Incorporation, as amended (the “Articles of Incorporation”). Pursuant to the Certificate of Amendment, the number of authorized shares of common stock was increased to 300,000,000. The Certificate of Amendment became effective upon filing on June 11, 2024.

Additionally, on November 20, 2024, the Company filed an amendment to its Articles of Incorporation, increasing the number of shares of common stock authorized for issuance to 400,000,000 shares and the number of shares of preferred stock authorized for issuance to 10,000,000 shares.

On May 6, 2024, the Company began sales of common stock under an "at the market" sale agreement with Roth Capital Partners, LLC pursuant to which the Company could sell up to $25 million in aggregate proceeds of common stock. During the quarter ended August 31, 2024, the Company sold approximately 3.1 million shares for net proceeds of approximately $14.6 million with commission and legal fees related to the issuance of approximately $0.5 million. As of August 31, 2024, this offering was completed.

On July 9, 2024, the Company entered into a Sales Agreement (the “Sales Agreement”) with B. Riley Securities, Inc., BTIG, LLC, Lake Street Capital Markets, LLC, Northland Securities, Inc. and Roth Capital Partners, LLC (collectively, the “Agents”), pursuant to which the Company could offer and sell, from time to time, through the Agents, up to $125.0 million in shares of the Company’s common stock. During the fiscal quarter ended August 31, 2024, approximately 3.0 million shares of the Company’s common stock were issued and sold under the Sales Agreement for proceeds of $16.4 million net of issuance costs of $0.5 million. On October 30, 2024, the Company terminated its Sales Agreement with the Agents.

On August 28, 2024, the Company entered into the SEPA with YA Fund, which was amended on August 29, 2024. Pursuant to the SEPA, subject to certain conditions and limitations, the Company had the option, but not the obligation, to sell to YA Fund, and YA Fund was obligated to purchase, an aggregate amount of up to $250.0 million of common stock, at the Company’s request any time during the commitment period commencing on September 30, 2024, and terminating on October 1, 2027.

In connection with the execution of the SEPA, the Company agreed to pay a structuring fee (in cash) to YA Fund in the amount of $25,000. Additionally, the Company agreed to pay a commitment fee of $2,125,000 to YA Fund, (the Commitment Fee”), in the form of 456,287 shares of common stock (the “Commitment Shares”), representing $2,125,000 divided by the average of the daily VWAPs of the common stock during the three trading days immediately prior to the date of the SEPA. On October 16, 2024, the Company entered into a letter agreement with YA Fund, whereby the Company agreed to satisfy its obligations with respect to the Commitment Fee in cash by increasing the principal amount due under the March Note in an equivalent amount, instead of issuing the Commitment Shares. The Commitment Fee was

On September 5, 2024, the Company entered into a securities purchase agreement with a group of institutional and accredited investors, NVIDIA and Related Companies, for the private placement (the “Private Placement”) of 49,382,720 shares of the Company’s common stock, par value $0.001 per share, at a purchase price of $3.24 per share, representing the last closing price of the common stock on the Nasdaq Global Select Market on September 4, 2024. The Private Placement closed during the three months ended November 30, 2024, with aggregate gross proceeds to the Company of approximately $160 million, before deducting offering expenses.