Stockholders’ Equity (Details) - Schedule of stock options outstanding and exercisable by exercise price	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock Options Outstanding, Number of Shares \| shares	7,472,056
Stock Options Outstanding, Weighted - Average Remaining Contractual Life In Years	7 years 7 months 6 days
Stock Options Outstanding, Weighted - Average Exercise Price Per Share \| $ / shares	$ 4.23
Stock Options Exercisable, Number of Shares \| shares	3,435,577
Stock Options Exercisable, Weighted - Average Exercise Price Per Share \| $ / shares	$ 6.7
Exercise Price Range From $0.38 - $0.38 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock Options Outstanding, Number of Shares \| shares	3,221,367
Stock Options Outstanding, Weighted - Average Remaining Contractual Life In Years	9 years 7 months 6 days
Stock Options Outstanding, Weighted - Average Exercise Price Per Share \| $ / shares	$ 0.38
Stock Options Exercisable, Number of Shares \| shares	0
Stock Options Exercisable, Weighted - Average Exercise Price Per Share \| $ / shares
Exercise Price Range from $1.90 - $2.99 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock Options Outstanding, Number of Shares \| shares	455,915
Stock Options Outstanding, Weighted - Average Remaining Contractual Life In Years	8 years 1 month 6 days
Stock Options Outstanding, Weighted - Average Exercise Price Per Share \| $ / shares	$ 2.6
Stock Options Exercisable, Number of Shares \| shares	216,795
Stock Options Exercisable, Weighted - Average Exercise Price Per Share \| $ / shares	$ 2.16
Exercise Price Range $3.33 - $3.33 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock Options Outstanding, Number of Shares \| shares	1,894,168
Stock Options Outstanding, Weighted - Average Remaining Contractual Life In Years	4 years 9 months 18 days
Stock Options Outstanding, Weighted - Average Exercise Price Per Share \| $ / shares	$ 3.33
Stock Options Exercisable, Number of Shares \| shares	1,894,168
Stock Options Exercisable, Weighted - Average Exercise Price Per Share \| $ / shares	$ 3.33
Exercise Price Range From $3.5 - $16.07 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock Options Outstanding, Number of Shares \| shares	1,607,002
Stock Options Outstanding, Weighted - Average Remaining Contractual Life In Years	7 years 7 months 6 days
Stock Options Outstanding, Weighted - Average Exercise Price Per Share \| $ / shares	$ 11.12
Stock Options Exercisable, Number of Shares \| shares	1,051,427
Stock Options Exercisable, Weighted - Average Exercise Price Per Share \| $ / shares	$ 11.02
Exercise Price Range From $16.90 - $16.90 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock Options Outstanding, Number of Shares \| shares	248,604
Stock Options Outstanding, Weighted - Average Remaining Contractual Life In Years	3 years 4 months 24 days
Stock Options Outstanding, Weighted - Average Exercise Price Per Share \| $ / shares	$ 16.9
Stock Options Exercisable, Number of Shares \| shares	248,604
Stock Options Exercisable, Weighted - Average Exercise Price Per Share \| $ / shares	$ 16.9
Exercise Price Range From $17.79 - $17.79 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock Options Outstanding, Number of Shares \| shares	25,000
Stock Options Outstanding, Weighted - Average Remaining Contractual Life In Years	8 years 2 months 12 days
Stock Options Outstanding, Weighted - Average Exercise Price Per Share \| $ / shares	$ 17.79
Stock Options Exercisable, Number of Shares \| shares	14,583
Stock Options Exercisable, Weighted - Average Exercise Price Per Share \| $ / shares	$ 17.79
Exercise Price Range From $20.00 - $20.00 [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock Options Outstanding, Number of Shares \| shares	20,000
Stock Options Outstanding, Weighted - Average Remaining Contractual Life In Years	8 years 4 months 24 days
Stock Options Outstanding, Weighted - Average Exercise Price Per Share \| $ / shares	$ 20
Stock Options Exercisable, Number of Shares \| shares	10,000
Stock Options Exercisable, Weighted - Average Exercise Price Per Share \| $ / shares	$ 20

HUMANIGEN, INC 10-K