9. Debt (Details Narrative) - USD ($)	1 Months Ended				3 Months Ended		24 Months Ended	27 Months Ended
	Nov. 30, 2022	Dec. 31, 2021	Nov. 30, 2021	Dec. 31, 2020	Mar. 31, 2022	Mar. 31, 2021	Nov. 24, 2024	Nov. 23, 2024	Dec. 02, 2021
Short-Term Debt [Line Items]
[custom:GainLossInFairValueOfConvertibleNotes]					$ (244,000)
November 2021 Lind Securities Purchase Agreement [Member]
Short-Term Debt [Line Items]
Long-Term Debt, Description			On November 23, 2021, the Company entered into a Securities Purchase Agreement (the “2021 Lind Securities Purchase Agreement”) with Lind Global Asset Management V, LLC (“Lind V”) pursuant to which, among other things, on November 23, 2021 (the “Closing Date”), the Company issued and sold to Lind V, in a private placement transaction (the “Private Placement”), in exchange for the payment by Lind V of $20.0 million, (i) a convertible promissory note (the “2021 Note”) in an aggregate principal amount of $22.0 million (the “Principal Amount”), which will bear no interest until the first anniversary of the issuance of the 2021 Note and will thereafter bear interest at a rate of 5% per annum, and mature on November 23, 2024 (the “Maturity Date”), and (ii) 534,759 shares of Company common stock.
First Anniversary Of November 2021 Lind Securities Purchase Agreement [Member]
Short-Term Debt [Line Items]
Long-Term Debt, Description	At the first anniversary of the Closing Date, the Company shall have the option, at its sole discretion, to issue to Lind V a convertible promissory note (the “Second Note”) in the principal amount of $11.0 million in exchange for the payment by Lind V of $10.0 million. At the earlier of (i) the two-year anniversary of the Closing Date, or (ii) the successful readout for SLS-005 in ALS, and subject to the mutual agreement of the Company and Lind V, the Company shall issue to Lind V a convertible promissory note (the “Third Note”) in the principal amount of $11.0 million in exchange for the payment by Lind V of $10.0 million. In the event of the filing of a new drug application with the U.S. Food & Drug Administration for either SLS-002 or SLS-005, and subject to the mutual agreement of the Company and Lind V, the Company shall issue to Lind V a convertible promissory note (the “Fourth Note”) in the principal amount of $11.0 million in exchange for the payment by Lind V of $10.0 million. The Second Note, the Third Note and the Fourth Note, if issued, would be in substantially the same form as the 2021 Note.
August 232022 Thru Maturity November 2021 Lind Securities Purchase Agreement [Member]
Short-Term Debt [Line Items]
Long-Term Debt, Description								At any time following August 23, 2022, from time to time and before the Maturity Date, Lind V shall have the option to convert any portion of the then-outstanding Principal Amount of the 2021 Note into shares of Common Stock at a price per share of $6.00, subject to adjustment for stock splits, reverse stock splits, stock dividends and similar transactions (the “Conversion Price”). At any time prior August 23, 2022, the Company shall have the right to prepay, in whole or in part (exercisable by the Company at any time or from time to time during such period), up to an aggregate of $14.7 million of the outstanding Principal Amount of the 2021 Note with no penalty. If the Company does not prepay any amounts of the 2021 Note prior to August 23, 2022 then, commencing August 23, 2022, the Company shall have the right to prepay, in whole or in part (exercisable by the Company at any time or from time to time prior to the Maturity Date), up to the full remaining Principal Amount of the 2021 Note with no penalty; however, if the Company exercises such prepayment right, Lind V will have the option to convert up to thirty-three and one-third percent (33 1/3%) of the amount that the Company elects to prepay at the Conversion Price. If the Company prepays any amounts of the 2021 Note prior to August 23, 2022 then, commencing November 23, 2022, the Company shall not have the right to prepay any amounts of the 2021 Note between August 23, 2022 to November 23, 2022 and, commencing November 23, 2022, the Company shall have the right to prepay, in whole or in part (exercisable by the Company at any time or from time to time prior to the Maturity Date) up to the full remaining Principal Amount of the 2021 Note with no penalty; however, if the Company exercises such prepayment right, Lind V will have the option to convert up to thirty-three and one-third percent (33 1/3%) of the amount that the Company elects to prepay at the Conversion Price.
Amortize November 2021 Lind Securities Purchase Agreement [Member]
Short-Term Debt [Line Items]
Long-Term Debt, Description							Beginning on November 23, 2022, the 2021 Note will amortize in twenty-four monthly installments equal to the quotient of (i) the then-outstanding Principal Amount of the 2021 Note, divided by (ii) the number of months remaining until the Maturity Date. All amortization payments shall be payable, at the Company’s sole option, in cash, shares of Common Stock or a combination of both. In addition, commencing on the last business day of the first month following November 23, 2022, the Company will pay, on a monthly basis, all interest that has accrued and remains unpaid on the then-outstanding Principal Amount of the 2021 Note. Any portion of an amortization payment or interest payment that is paid in shares of Common Stock shall be priced at 90% of the average of the five lowest daily volume weighted average prices of the Common Stock during the 20 trading days prior to the date of issuance of the shares. If, after the first amortization payment, the Company elects to make any amortization payments in cash, the Company shall pay a 5% premium on each cash payment. In conjunction with the 2021 Lind Securities Purchase Agreement and the 2021 Note, on the Closing Date, the Company and Lind V entered into a security agreement, which provides Lind V with a first priority lien on the Company’s assets and properties.
December 2021 S P As [Member]
Short-Term Debt [Line Items]
Long-Term Debt, Description		On December 2, 2021, the Company entered into two separate securities purchase agreements with certain accredited investors on substantially the same terms as the 2021 Lind Securities Purchase Agreement, pursuant to which the Company sold, in private placement transactions, in exchange for the payment by the accredited investors of an aggregate of $201,534, (i) convertible promissory notes in an aggregate principal amount of $221,688, which will bear no interest and mature on December 2, 2024, and (ii) an aggregate of 5,388 shares of its common stock. These notes have substantially the same terms as the 2021 Note.
Proceeds from Convertible Debt		$ 20,200,000
Convertible Subordinated Debt		18,900,000							$ 19,200,000
[custom:GainLossInFairValueOfConvertibleNotes]		200,000			200,000
Long-Term Debt, Fair Value					19,200,000
Convertible Notes Payable					$ 22,200,000
Lind Securities Purchase Agreement [Member]
Short-Term Debt [Line Items]
Long-Term Debt, Description				On December 11, 2020, the Company entered into a Securities Purchase Agreement (the “2020 Lind Securities Purchase Agreement”) with Lind Global Asset Management II, LLC (the “Investor”) pursuant to which, among other things, on December 11, 2020, the Company issued and sold to the Investor, in a private placement transaction, in exchange for the payment by the Investor of $10,000,000, (1) a convertible promissory note (the “2020 Note”) in an aggregate principal amount of $12,000,000 (the “Principal Amount”), which did not bear interest and was to mature on December 11, 2022 (the “Maturity Date”), and (2) 975,000 shares of the Company’s common stock. At any time following June 11, 2021, and from time to time before the Maturity Date, the Investor had the option to convert any portion of the then-outstanding Principal Amount of the Note into shares of common stock at a price per share of $1.60, subject to adjustment for stock splits, reverse stock splits, stock dividends and similar transactions. Prior to June 11, 2021, the Company had the right to prepay up to sixty-six and two-thirds percent (66 2/3%) of the then-outstanding Principal Amount of the 2020 Note with no penalty. Subject to certain exceptions, the Company was required to direct proceeds from any subsequent debt financings (including subordinated debt, convertible debt or mandatorily redeemable preferred stock but other than purchase money debt or capital lease obligations or other indebtedness incurred in the ordinary course of business) to repay the 2020 Note, unless waived by the Investor in advance. The 2020 Note began amortizing in June 2021 and was to amortize in eighteen monthly installments equal to the quotient of (i) the then-outstanding Principal Amount of the 2020 Note, divided by (ii) the number of months remaining until the Maturity Date. All amortization payments were to be payable solely in cash, plus a 2% premium. During the first half of 2021, the Company made certain repayments on the outstanding principal balance of the convertible notes. On June 14, 2021, the Company and the Investor entered into an Acknowledgment and Termination Agreement, pursuant to which the Company agreed to issue to the Investor an aggregate of 406,250 additional shares of its common stock (the “Lind Shares”) and to pay the Investor the remaining principal amount of $790,804 (the “Final Payment”) in full satisfaction of the Company’s remaining obligations to the Investor under the 2020 Note. The Company issued the Lind Shares and made the Final Payment to the Investor, and the 2020 Lind Securities Purchase Agreement and the 2020 Note terminated, effective June 15, 2021.
December 17 S P As [Member]
Short-Term Debt [Line Items]
Long-Term Debt, Description				On December 17, 2020, the Company entered into three separate securities purchase agreements with certain accredited investors on substantially the same terms as the Lind Securities Purchase Agreement (the “December 17 SPAs”), pursuant to which the Company sold, in private placement transactions, in exchange for the payment by the accredited investors of an aggregate of $1,138,023, (1) convertible promissory notes (the “December 17 Notes”) in an aggregate principal amount of $1,365,628, which did not bear interest and were to mature on December 17, 2022, and (2) an aggregate of 110,956 shares of its common stock. On December 18, 2020, the Company entered into an additional securities purchase agreement with an accredited investor on substantially the same terms as the Lind Securities Purchase Agreement (the “December 18 SPA” and, together with the December 17 SPAs, the "Subsequent Securities Purchase Agreements"), pursuant to which the Company sold, in a private placement transaction, in exchange for the payment by the accredited investor of $269,373, (1) a convertible promissory note in an aggregate principal amount of $323,247, which did not bear interest and was to mature on December 18, 2022 (the “December 18 Note” and, together with the December 17 Notes, the “Subsequent Notes”), and (2) 26,263 shares of the Company’s common stock. The Subsequent Securities Purchase Agreements had substantially the same terms as the Lind Securities Purchase Agreement, and the Subsequent Notes had substantially the same terms as the Note. During the first half of 2021, the Company made certain repayments on the outstanding principal balance of the convertible notes. On July 7, 2021, the Company and the holder of the December 18 Note (the “December 18 Note Holder”) entered into an Acknowledgement and Termination Agreement, pursuant to which: (i) the December 18 Note Holder agreed to return to the Company $42,777 in cash (the “Repayment”) previously paid by the Company to the December 18 Note Holder as a payment against the Company’s obligations under the December 18 Note, and (ii) the Company agreed to issue to the December 18 Note Holder an aggregate of 43,664 additional shares of its common stock (the “December 18 Note Shares”) in full satisfaction of the Company’s remaining obligations to the December 18 Note Holder under the December 18 Note. The December 18 Note Holder paid the Company the Repayment and the Company issued the December Note Shares, and the December 18 SPA and the December 18 Note terminated, effective July 7, 2021.
Repayments of Convertible Debt		$ 13,600,000
Stock Issued During Period, Shares, Conversion of Convertible Securities		475,315
Long-Term Debt		$ 0