Stockholders' equity (Details 1) - $ / shares		3 Months Ended
		Mar. 31, 2024	Dec. 31, 2023	May 31, 2023	Jan. 11, 2023
Class of Warrant or Right [Line Items]
Exercise Price (in Dollars per share)				$ 7.785	$ 26.50
Shares of Common Stock Subject to Warrants	[1]	1,095,517	1,095,517
February Two Thousand Fifteen [Member] | Warrants Exercise Price One [Member]
Class of Warrant or Right [Line Items]
Exercise Price (in Dollars per share)		$ 660,000.00
Expiration		February 2025
Shares of Common Stock Subject to Warrants	[1]	3	3
October Two Thousand Nineteen [Member] | Warrant Exercise Price Four [Member]
Class of Warrant or Right [Line Items]
Exercise Price (in Dollars per share)		$ 400.00
Expiration		October 2024
Shares of Common Stock Subject to Warrants	[1]	1,770	1,770
October Two Thousand Nineteen [Member] | Warrants Exercise Price Five [Member]
Class of Warrant or Right [Line Items]
Exercise Price (in Dollars per share)		$ 520.00
Expiration		October 2024
Shares of Common Stock Subject to Warrants	[1]	1,175	1,175
November Two Thousand Twenty [Member] | Warrants Exercise Price Ten [Member]
Class of Warrant or Right [Line Items]
Exercise Price (in Dollars per share)		$ 504.40
Expiration		May 2026
Shares of Common Stock Subject to Warrants	[1]	1,211	1,211
February Two Thousand Twenty One [Member] | Warrants Exercise Price Seven [Member]
Class of Warrant or Right [Line Items]
Exercise Price (in Dollars per share)		$ 780.00
Expiration		August 2026
Shares of Common Stock Subject to Warrants	[1]	2,084	2,084
May Two Thousand Twenty Three [Member] | Warrant Exercise Price Nine [Member]
Class of Warrant or Right [Line Items]
Exercise Price (in Dollars per share)		$ 7.785
Shares of Common Stock Subject to Warrants	[1]	889,274	889,274
October Two Thousand Twenty Three [Member] | Warrant Exercise Price Ten [Member]
Class of Warrant or Right [Line Items]
Exercise Price (in Dollars per share)		$ 3.36
Expiration		April 2029
Shares of Common Stock Subject to Warrants	[1]	200,000	200,000

[1] Warrants to purchase fractional shares of common stock resulting from the reverse stock splits effected on January 5, 2023 and May 20, 2024 were rounded up to the next whole share of common stock on a holder by holder basis.