v3.26.3
Warrants (Details - Warrants issued with financing)
 9 Months Ended
Sep. 30, 2026
$ / shares
shares
Tradeable Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 11 [1]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 888,000.00 [1]
[custom:WarrantExpirationDate] February 2027 [1]
2022 Pre-Funded Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 10
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 200.00
[custom:WarrantExpirationDate] Unlimited
Investor Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 10
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 888,000.00
[custom:WarrantExpirationDate] March 2027
April Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 25
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 1,504,000.00
[custom:WarrantExpirationDate] April 2027
May Pre-Funded Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 9
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 400.00
[custom:WarrantExpirationDate] Unlimited
May Investor Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 30
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 236,000.00
[custom:WarrantExpirationDate] November 2028
2024 Pre-Funded Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 113
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 400.00
[custom:WarrantExpirationDate] Unlimited
Series A Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 20 [2]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 840,000 [2]
[custom:WarrantExpirationDate] August 2026
Series B Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 40 [2]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 952,000.00 [2]
[custom:WarrantExpirationDate] February 2029
2025 Pre-Funded Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 1,300
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 0.20
[custom:WarrantExpirationDate] Unlimited
Series C Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 120,000 [2]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 100.00 [2]
[custom:WarrantExpirationDate] May 2031
2026 Pre-Funded Warrants [Member]  
Class of Warrant or Right [Line Items]  
Warrants outstanding | shares 4,200
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 0.002
[custom:WarrantExpirationDate] Unlimited
[1] These warrants trade on Nasdaq under the symbol SBFMW.
[2] Subject to adjustment.