Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Stockholders' Equity and Equity-linked Instruments - Schedule of Preferred Stock (Details)

v3.24.3
Note 6 - Stockholders' Equity and Equity-linked Instruments - Schedule of Preferred Stock (Details) - USD ($)
 9 Months Ended
Sep. 30, 2024
Dec. 31, 2023
Nov. 30, 2023
Aug. 23, 2023
Outstanding (in shares) 20,592 23,656    
Gross Proceeds $ 41,982,000      
Fees 4,420,000      
Net Proceeds $ 37,562,000      
Warrants Issued With Placement Agent Agreement [Member]        
Placement Agent Warrants (in shares) [1] 1,574,000      
Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 41,982      
Conversions / Exchanges (in shares) (21,390)      
Converted to Common stock (in shares) 21,390      
Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (11,346,000)      
Original (in shares) 18,275,000      
Conversion of preferred stock to common stock (in shares) [3] (6,929,000)      
Converted to Common stock (in shares) 11,346,000      
Series A Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 12.4      
Outstanding (in shares) 440      
Gross Proceeds $ 5,359,000      
Fees 697,000      
Net Proceeds $ 4,662,000      
Series A Preferred Stock [Member] | Warrants Issued With Placement Agent Agreement [Member]        
Placement Agent Warrants (in shares) [1] 62,000      
Series A Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 5,359      
Conversions / Exchanges (in shares) (4,919)      
Converted to Common stock (in shares) 4,919      
Series A Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (35,000)      
Original (in shares) 432,000      
Conversion of preferred stock to common stock (in shares) [3] (397,000)      
Converted to Common stock (in shares) 35,000      
Series A-2 Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 13.29      
Outstanding (in shares) 463      
Gross Proceeds $ (1,297,000)      
Fees 169,000      
Net Proceeds $ 1,128,000      
Series A-2 Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 1,297      
Conversions / Exchanges (in shares) (834)      
Converted to Common stock (in shares) 834      
Series A-2 Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (35,000)      
Original (in shares) 98,000      
Conversion of preferred stock to common stock (in shares) [3] (63,000)      
Converted to Common stock (in shares) 35,000      
Series A-3 Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 13.41      
Outstanding (in shares) 315      
Gross Proceeds $ (1,733,000)      
Fees 225,000      
Net Proceeds $ 1,508,000      
Series A-3 Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 1,733      
Conversions / Exchanges (in shares) (1,418)      
Converted to Common stock (in shares) 1,418      
Series A-3 Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (23,000)      
Original (in shares) 129,000      
Conversion of preferred stock to common stock (in shares) [3] (106,000)      
Converted to Common stock (in shares) 23,000      
Series A-4 Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 7.6      
Outstanding (in shares) 380      
Gross Proceeds $ (1,934,000)      
Fees 251,000      
Net Proceeds $ 1,683,000      
Series A-4 Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 1,934      
Conversions / Exchanges (in shares) (1,554)      
Converted to Common stock (in shares) 1,554      
Series A-4 Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (50,000)      
Original (in shares) 254,000      
Conversion of preferred stock to common stock (in shares) [3] (204,000)      
Converted to Common stock (in shares) 50,000      
Series A-5 Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 11.09      
Outstanding (in shares) 780      
Gross Proceeds $ (2,299,000)      
Fees 299,000      
Net Proceeds $ 2,000,000      
Series A-5 Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 2,299      
Conversions / Exchanges (in shares) (1,519)      
Converted to Common stock (in shares) 1,519      
Series A-5 Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (70,000)      
Original (in shares) 207,000      
Conversion of preferred stock to common stock (in shares) [3] (137,000)      
Converted to Common stock (in shares) 70,000      
Series A A Preferred Stock [Member]        
Conversion Prices (in dollars per share) $ 9.43      
Outstanding (in shares) 3,699   7,322 10,706
Gross Proceeds $ (7,680,000)      
Fees 966,000      
Net Proceeds $ 6,714,000      
Adjusted Conversion Prices (in dollars per share) [4],[5],[6] $ 1.89      
Series A A Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 7,680      
Conversions / Exchanges (in shares) (3,981)      
Converted to Common stock (in shares) 3,981      
Series A A Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (1,961,000)      
Original (in shares) 4,072,000      
Conversion of preferred stock to common stock (in shares) [3] (2,111,000)      
Converted to Common stock (in shares) 1,961,000      
Series AA-2 Convertible Preferred Stock [Member]        
Conversion Prices (in dollars per share) $ 10.43      
Outstanding (in shares) 0      
Gross Proceeds $ (1,500,000)      
Fees 130,000      
Net Proceeds $ 1,370,000      
Adjusted Conversion Prices (in dollars per share) [4],[5],[6] $ 2.09      
Series AA-2 Convertible Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 1,500      
Conversions / Exchanges (in shares) (1,500)      
Converted to Common stock (in shares) 1,500      
Series AA-2 Convertible Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) 0      
Original (in shares) 719,000      
Conversion of preferred stock to common stock (in shares) [3] (719,000)      
Converted to Common stock (in shares) 0      
Series AA-3 Convertible Preferred Stock [Member]        
Conversion Prices (in dollars per share) $ 9.5      
Outstanding (in shares) 25      
Gross Proceeds $ (1,025,000)      
Fees 133,000      
Net Proceeds $ 892,000      
Adjusted Conversion Prices (in dollars per share) [4],[5],[6] $ 1.9      
Series AA-3 Convertible Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 1,025      
Conversions / Exchanges (in shares) (1,000)      
Converted to Common stock (in shares) 1,000      
Series AA-3 Convertible Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (13,000)      
Original (in shares) 539,000      
Conversion of preferred stock to common stock (in shares) [3] (526,000)      
Converted to Common stock (in shares) 13,000      
Series AA-4 Convertible Preferred Stock [Member]        
Conversion Prices (in dollars per share) $ 9.28      
Outstanding (in shares) 500      
Gross Proceeds $ (1,026,000)      
Fees 133,000      
Net Proceeds $ 893,000      
Adjusted Conversion Prices (in dollars per share) [4],[5],[6] $ 1.86      
Series AA-4 Convertible Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 1,026      
Conversions / Exchanges (in shares) (526)      
Converted to Common stock (in shares) 526      
Series AA-4 Convertible Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (270,000)      
Original (in shares) 553,000      
Conversion of preferred stock to common stock (in shares) [3] (283,000)      
Converted to Common stock (in shares) 270,000      
Series AA-5 Convertible Preferred Stock [Member]        
Conversion Prices (in dollars per share) $ 10.6      
Outstanding (in shares) 50      
Gross Proceeds $ (550,000)      
Fees 72,000      
Net Proceeds $ 478,000      
Adjusted Conversion Prices (in dollars per share) [4],[5],[6] $ 2.12      
Series AA-5 Convertible Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 550      
Conversions / Exchanges (in shares) (500)      
Converted to Common stock (in shares) 500      
Series AA-5 Convertible Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (23,000)      
Original (in shares) 259,000      
Conversion of preferred stock to common stock (in shares) [3] (236,000)      
Converted to Common stock (in shares) 23,000      
Series AAA Convertible Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 1.67      
Outstanding (in shares) 7,875      
Gross Proceeds $ (9,388,000)      
Fees 645,000      
Net Proceeds $ 8,743,000      
Series AAA Convertible Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 9,388      
Conversions / Exchanges (in shares) (1,513)      
Converted to Common stock (in shares) 1,513      
Series AAA Convertible Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (4,704,000)      
Original (in shares) 5,608,000      
Conversion of preferred stock to common stock (in shares) [3] (904,000)      
Converted to Common stock (in shares) 4,704,000      
Series AAA-2 Convertible Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 1.71      
Outstanding (in shares) 3,208      
Gross Proceeds $ (5,334,000)      
Fees 357,000      
Net Proceeds $ 4,977,000      
Series AAA-2 Convertible Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 5,334      
Conversions / Exchanges (in shares) (2,126)      
Converted to Common stock (in shares) 2,126      
Series AAA-2 Convertible Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (1,876,000)      
Original (in shares) 3,119,000      
Conversion of preferred stock to common stock (in shares) [3] (1,243,000)      
Converted to Common stock (in shares) 1,876,000      
Series AAA Junior Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 1.25      
Outstanding (in shares) 1,210      
Gross Proceeds $ (1,210,000)      
Fees 145,000      
Net Proceeds $ 1,065,000      
Series AAA Junior Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 1,210      
Conversions / Exchanges (in shares) 0      
Converted to Common stock (in shares) (0)      
Series AAA Junior Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (968,000)      
Original (in shares) 968,000      
Conversion of preferred stock to common stock (in shares) [3] 0      
Converted to Common stock (in shares) 968,000      
Series AAA-2 Junior Convertible Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 1.25      
Outstanding (in shares) 551      
Gross Proceeds $ 551,000      
Fees 66,000      
Net Proceeds $ 485,000      
Series AAA-2 Junior Convertible Preferred Stock [Member] | Warrants Issued With Placement Agent Agreement [Member]        
Placement Agent Warrants (in shares) [1] 64,000      
Series AAA-2 Junior Convertible Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 551      
Conversions / Exchanges (in shares) 0      
Converted to Common stock (in shares) (0)      
Series AAA-2 Junior Convertible Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (441,000)      
Original (in shares) 441,000      
Conversion of preferred stock to common stock (in shares) [3] 0      
Converted to Common stock (in shares) 441,000      
Series AAA-3 Junior Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6] $ 1.25      
Outstanding (in shares) 697      
Gross Proceeds $ 697,000      
Fees 84,000      
Net Proceeds $ 613,000      
Series AAA-3 Junior Preferred Stock [Member] | Warrants Issued With Placement Agent Agreement [Member]        
Placement Agent Warrants (in shares) [1] 81,000      
Series AAA-3 Junior Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2] 697      
Conversions / Exchanges (in shares) 0      
Converted to Common stock (in shares) (0)      
Series AAA-3 Junior Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) (558,000)      
Original (in shares) 558,000      
Conversion of preferred stock to common stock (in shares) [3] 0      
Converted to Common stock (in shares) 558,000      
Series AAA-4 Junior Preferred Stock [Member]        
Conversion Prices (in dollars per share) [4],[5],[6],[7] $ 1.25      
Outstanding (in shares) [7] 399      
Gross Proceeds [7] $ 399,000      
Fees [7] 48,000      
Net Proceeds [7] $ 351,000      
Series AAA-4 Junior Preferred Stock [Member] | Warrants Issued With Placement Agent Agreement [Member]        
Placement Agent Warrants (in shares) [1],[7] 46,000      
Series AAA-4 Junior Preferred Stock [Member] | Preferred Stock Converted to Preferred Stock [Member]        
Shares Purchased/ Issued in Exchange (in shares) [2],[7] 399      
Conversions / Exchanges (in shares) [7] 0      
Converted to Common stock (in shares) [7] (0)      
Series AAA-4 Junior Preferred Stock [Member] | Preferred Stock Converted to Common Stock [Member]        
Conversions / Exchanges (in shares) [7] (319,000)      
Original (in shares) [7] 319,000      
Conversion of preferred stock to common stock (in shares) [3],[7] 0      
Converted to Common stock (in shares) [7] 319,000      
[1] Pursuant to the terms of the Placement Agent Agreements, we agreed to issue to the Placement Agent, following the final closing under the individual Preferred Stock Offerings (effective as of the respective individual series closing dates), five-year warrants to purchase 14.5% of the shares of common stock issuable upon conversion of the respective series of Convertible Preferred Stock sold in the respective Preferred Stock Offering, at an exercise price equal to the applicable Preferred Stock Offering conversion price.
[2] Series AAA and Series AAA-2 totals include 4,011 and 2,356 preferred shares, respectively, issued in connection with the Exchange Agreements described below.
[3] As adjusted to reflect reduction in conversion prices as a result of the Series AA Down Round Feature, described below.
[4] The Conversion price for Series AA Preferred Stock outstanding as of August 23, 2023, totaling 10,706 shares of Series AA Preferred Stock, was adjusted to $2.60 as a result of the Series AA Down Round Feature described below.
[5] The Conversion prices for the Series AA Preferred Stock outstanding as of November 30, 2023, totaling 7,322 shares of Series AA Preferred Stock, were adjusted to the conversion prices shown in the table above, as a result of the Series AA Down Round Feature described below.
[6] The triggering of the Down Round Feature for the Series AA Preferred Stock, occurring in August 2023, resulted in a deemed dividend totaling $6,446,000, which was charged to retained earnings in the September 30, 2023 consolidated balance sheet.
[7] A portion of the proceeds received subsequent to September 30, 2024. Receivable totaling $300,000 included in additional paid in capital as of September 30, 2024.