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Subsequent Events - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 34 Months Ended
Jul. 15, 2023
Jun. 15, 2023
May 15, 2023
Apr. 01, 2023
Jan. 30, 2023
May 15, 2023
May 15, 2023
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2023
Jun. 30, 2023
May 31, 2023
May 30, 2023
May 12, 2023
Apr. 12, 2023
Pre-Funded Warrants                              
Subsequent Event [Line Items]                              
Warrant issued to purchase common stock               585,306   585,306          
Lenders Party and SWK Funding LLC | Original Term Loan | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Debt instrument, interest rate, increase         3.00%                    
Debt instrument, maturity date, description               The final maturity date of the SWK Loans is March 4, 2024.              
Debt instrument, maturity date         Mar. 04, 2024                    
Lenders Party and SWK Funding LLC | Original Term Loan | SOFR | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Debt instrument, interest rate         1.00%                    
Debt instrument, basis spread on variable rate         11.00%                    
Debt instrument, frequency of periodic payment         quarterly                    
Monthly principal payment               $ 600              
Debt instrument, periodic payment, principal         $ 1,300                    
Lenders Party and SWK Funding LLC | Second Term Loan | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Minimum cash balance required by the loan covenants         $ 1,500     $ 3,000   $ 3,000          
If ACER-001 Approval does not Occur on or Before December 31, 2022 | Lenders Party and SWK Funding LLC | Original Term Loan | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Debt instrument repayment percentage on outstanding principal amount         150.00%                    
Repayment Occurs On Or After April 16, 2023 But Prior to May 16, 2023 | Lenders Party and SWK Funding LLC | Second Term Loan | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Debt instrument repayment percentage on outstanding principal amount         1.28667%                    
Repayment Occurs On Or After May 16, 2023 But Prior to June 16, 2023 | Lenders Party and SWK Funding LLC | Second Term Loan | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Debt instrument repayment percentage on outstanding principal amount         1.39334%                    
Repayment Occurs On Or After June 16, 2023 | Lenders Party and SWK Funding LLC | Second Term Loan | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Debt instrument repayment percentage on outstanding principal amount         150.00%                    
Scenario Forecast | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Minimum cash balance required by the loan covenants                     $ 3,000 $ 1,250 $ 1,750    
Principal amortization payments   $ 600                          
Quarterly interest payment due $ 500                            
Subsequent Event | Pre-Funded Warrants                              
Subsequent Event [Line Items]                              
Warrant issued to purchase common stock                             585,306
Subsequent Event | SWK Credit Agreement                              
Subsequent Event [Line Items]                              
Minimum cash balance required by the loan covenants                           $ 3,000  
Principal amortization payments     $ 600                        
At-the-Market Facility                              
Subsequent Event [Line Items]                              
Issuance of common stock, net of issuance costs, shares               1,462,254 0            
Proceeds from issuance of common stock gross               $ 4,100   $ 20,600          
Payments Of Stock Issuance Costs               100              
Proceeds from issuance of common stock, net of issuance costs               $ 4,000              
At-the-Market Facility | Subsequent Event                              
Subsequent Event [Line Items]                              
Issuance of common stock, net of issuance costs, shares       456,886   456,886 456,886                
Proceeds from issuance of common stock gross       $ 400   $ 400                  
Payments Of Stock Issuance Costs       14   14                  
Proceeds from issuance of common stock, net of issuance costs       $ 300   $ 300 $ 300                
At-the-Market Facility | Weighted Average                              
Subsequent Event [Line Items]                              
Issuance of common stock, gross sale price per share               $ 2.8095              
At-the-Market Facility | Weighted Average | Subsequent Event                              
Subsequent Event [Line Items]                              
Issuance of common stock, gross sale price per share       $ 0.7912   $ 0.7912