JanOne Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Details)

Stockholders' Equity - Additional Information (Details)								3 Months Ended
Stockholders' Equity - Additional Information (Details)	Mar. 25, 2024 USD ($) shares	Mar. 22, 2024 USD ($)	Mar. 04, 2024 shares	Feb. 23, 2024 USD ($) investor $ / shares shares	Oct. 09, 2023 USD ($) $ / shares shares	Aug. 18, 2023 $ / shares shares	Dec. 28, 2022 USD ($) shares	Mar. 30, 2024 USD ($) $ / shares shares	Apr. 01, 2023 USD ($) shares	Dec. 31, 2023 $ / shares shares	Nov. 04, 2020 shares	Nov. 03, 2020 shares
Shareholders Equity [Line Items]
Common stock, shares authorized (in shares)								200,000,000		200,000,000
Common stock, par value (in usd per share) \| $ / shares								$ 0.001		$ 0.001
Common stock, outstanding shares (in shares)								7,551,379		4,957,647
Options outstanding (in shares)								114,000		114,000
Series A1 Convertible Preferred Stock
Shareholders Equity [Line Items]
Preferred stock, outstanding shares (in shares)								176,230		176,230
Shares converted (in shares)								0
Series S Convertible Preferred Stock
Shareholders Equity [Line Items]
Preferred stock, outstanding shares (in shares)								100,000		100,000
Series S Convertible Preferred Stock \| Soin Therapeutics LLC
Shareholders Equity [Line Items]
Transaction amount \| $							$ 30,000,000
Business acquisition, convertible preferred stock (in shares)							100,000
ICG Note \| Related Party
Shareholders Equity [Line Items]
Offering price (in usd per share) \| $ / shares				$ 0.61
Warrant exercise price (in usd per share) \| $ / shares				$ 0.61
ICG Note \| Related Party \| ICG Note \| Promissory Note
Shareholders Equity [Line Items]
Debt conversion, converted amount \| $	$ 183,000	$ 183,000
Isaac Consulting Agreement \| Related Party \| Mr. Jon Isaac
Shareholders Equity [Line Items]
Term of consulting agreement			2 years
Restricted shares issued (in shares)			200,000					232,000
Live \| Related Party \| Live Note \| Promissory Note
Shareholders Equity [Line Items]
Debt conversion, converted amount \| $		$ 183,000
2023 Plan Member
Shareholders Equity [Line Items]
Options authorized for issuance (in shares)								2,000,000
2016 Plan
Shareholders Equity [Line Items]
Options authorized for issuance (in shares)											800,000	400,000
Options outstanding (in shares)								100,000		100,000
2011 Plan
Shareholders Equity [Line Items]
Options outstanding (in shares)								14,000		14,000
Additional awards to be granted (in shares)								0
RSU's \| 2023 Plan Member
Shareholders Equity [Line Items]
Underlying shares granted (in shares)					908,852			908,852
Restricted stock units granted \| $					$ 345,000
Share price (in usd per share) \| $ / shares					$ 0.3796
Share-based compensation expense \| $								$ 345,000,000
Stock Options
Shareholders Equity [Line Items]
Share-based compensation expense \| $								$ 0	$ 8,000,000
Unrecognized compensation expense, net of estimated forfeitures \| $									$ 0
Placement Agency Agreement
Shareholders Equity [Line Items]
Common stock issued in lieu of professional services (in shares)								27,738
Number of shares issued (in shares)						418,000
Common stock, par value (in usd per share) \| $ / shares						$ 0.001
Offering price (in usd per share) \| $ / shares						$ 0.8811
Placement Agency Agreement \| Pre-Funded Warrants Member
Shareholders Equity [Line Items]
Warrant excise and granted (in shares)						481,348
Warrant exercise price (in usd per share) \| $ / shares						$ 0.8801
Equity Unit Purchase Agreements \| Related Party
Shareholders Equity [Line Items]
Number of shares issued (in shares)				408,163
Equity Unit Purchase Agreements \| ICG Note \| Related Party
Shareholders Equity [Line Items]
Offering price (in usd per share) \| $ / shares				$ 0.7350
Unaffiliated third-part investors \| investor				2
Aggregate purchase price \| $				$ 300,000
Sale of stock, aggregate price \| $				$ 600,000
Number of common shares in each unit (in shares)				1
Number of warrants in each unit (in shares)				1
Warrants exercisable term				3 years
Class of warrant (in usd per share) \| $ / shares				$ 0.125
Equity Unit Purchase Agreements \| ICG Note \| Related Party \| ICG Note \| Promissory Note
Shareholders Equity [Line Items]
Debt conversion, converted (in shares)	300,000
Equity Unit Purchase Agreements \| Live \| Related Party \| Live Note \| Promissory Note
Shareholders Equity [Line Items]
Debt conversion, converted (in shares)	300,000
Third-Party Exchange For Brokerage Services \| Related Party
Shareholders Equity [Line Items]
Number of shares issued (in shares)				40,816
Articles of Incorporation
Shareholders Equity [Line Items]
Common stock, shares authorized (in shares)								200,000,000
Common stock issued in lieu of professional services (in shares)								0	0