NEXGEL, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Common Stock - Additional Information (Details)

Common Stock - Additional Information (Details)							1 Months Ended			2 Months Ended	3 Months Ended	12 Months Ended
Common Stock - Additional Information (Details)	Dec. 27, 2021 $ / shares shares	Nov. 29, 2021	Oct. 27, 2021 $ / shares shares	Oct. 10, 2020 $ / shares	Feb. 17, 2020 USD ($) $ / shares shares	Feb. 10, 2020 shares	Nov. 30, 2020 shares	Aug. 14, 2020 USD ($) $ / shares shares	Mar. 20, 2020 USD ($) $ / shares shares	Dec. 24, 2020 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Sep. 02, 2021 $ / shares shares	May 29, 2020 $ / shares	May 26, 2020 shares	May 25, 2020 shares	Feb. 09, 2020 shares
Class of Stock [Line Items]
Number of units sold	2,585,000
Purchase price, per unit \| $ / shares	$ 5.50
Exercise price \| $ / shares	5.50
Common stock, par value \| $ / shares	0.001											$ 0.001	$ 0.001		$ 0.001
Issue price per share \| $ / shares	$ 5.50
Aggregate purchase price \| $												$ 13,471,000	$ 1,370,000
Authorized shares of common stock						3,000,000,000						750,000,000	750,000,000			3,000,000,000	100,000,000	100,000,000
Reverse stock split ratio		0.029
Stock Issued During Period, Shares, Restricted Stock Award, Gross												39,924
Exercised and converted to common shares												(39,524)	(169,388)
Restricted stock award
Class of Stock [Line Items]
Granted \| $ / shares				$ 2.10
Restricted stock award \| Mr. Levy
Class of Stock [Line Items]
Exercised and converted to common shares					(169,388)		(169,397)
2019 \| Director Member
Class of Stock [Line Items]
Aggregate purchase price \| $					$ 40,000
Share Based Compensation Award Tranche One Member \| 2019 \| Director Member
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage					0.50%
Number of options granted					81,633
Granted \| $ / shares					$ 0.49
Vesting in equal installments on June 2020 and September 2020 \| 2019 \| Director Member
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage					0.50%
Investor Private Placement Offering
Class of Stock [Line Items]
Purchase price, per unit \| $ / shares								$ 2.10	$ 1.40	$ 2.80	$ 2.80
Exercise price \| $ / shares									1.40					$ 5.25
Number of additional warrants issued												1		308,571
Issue price per share \| $ / shares								$ 2.10	$ 1.40	$ 2.80	$ 2.80
Issuances of common stock, net of issuance costs (in shares)								188,143	442,858	126,786	101,800
Aggregate purchase price \| $								$ 395,100	$ 620,000	$ 355,000	$ 285,000
Percentage of fee equal to gross proceeds and warrants									6.00%
Percentage of shares issuable to warrant holders based on the number of shares issued to investors									10.00%
Warrants exercisable term									3 years					5 years
IPO
Class of Stock [Line Items]
Number of units sold			2,585,000
Purchase price, per unit \| $ / shares			$ 5.50
Exercise price \| $ / shares			$ 5.50
Additional shares of common stock issued			387,750
Number of additional warrants issued			387,750
Additional number of days			45 days
Issue price per share \| $ / shares			$ 5.50
Additional shares issued on common stock			387,750
Underwriter
Class of Stock [Line Items]
Number of additional warrants issued			387,750
Minimum \| Investor Private Placement Offering
Class of Stock [Line Items]
Reverse stock split ratio						0.03
Maximum \| Investor Private Placement Offering
Class of Stock [Line Items]
Reverse stock split ratio						0.01