Common stock outstanding percentage.

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Shares available for grant, options granted.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Number of common shares issuable upon conversion of preferred stock.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Per share weighted-average price paid for shares purchased on open market for issuance under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.C)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-4

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Stock-Based Awards (Details Narrative) - USD ($)					3 Months Ended			12 Months Ended
Stock-Based Awards (Details Narrative) - USD ($)	May 09, 2024	Mar. 31, 2024	Mar. 14, 2024	Jul. 31, 2023	Mar. 31, 2024	Mar. 20, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Mar. 27, 2024	Mar. 26, 2024	Feb. 01, 2024	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Conversion of Stock, Shares Issued					0.97682654
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price								$ 0.06	$ 0.06				$ 0.06
Reverse stock split ratio			1 for 35.17
Share-Based Payment Arrangement, Expense					$ 53,000		$ 2,000	$ 24,325	$ 7,110
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term								7 years 5 months 15 days
Number of options exercised								248,934	73,700
Options granted and outstanding exercised					4,000
Proceeds from line of credit					$ 2,400,000
Preferred Stock, Convertible, Shares Issuable		5,913,277			5,913,277
Common Stock, Shares, Issued		8,414,000			8,414,000			2,467,434	2,218,500
Convertible Promissory Note [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Proceeds from (Repayments of) Debt	$ 525,000
Convertible Promissory Note [Member] \| Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Proceeds from (Repayments of) Debt	$ 525,000
Agex Therapeutics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Payment Arrangement, Expense								$ 648,000	$ 760,000
Total unrecognized compensation expense								$ 68,000
Recognized over weighted average period								1 year 4 months 9 days
Weighted-average estimated fair value of stock options granted								$ 22.41	$ 24.48
Proceeds from line of credit								$ 17,500,000	$ 6,000,000
Common Stock, Shares, Issued								1,079,000	1,079,000
Agex Therapeutics Inc [Member] \| Juvenescence Limited [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock outstanding percentage				85.00%
Agex Therapeutics Inc [Member] \| Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reverse stock split ratio			1 for 35.17
Granted options description					Immediately following the Merger, equity holders of Serina immediately prior to the closing of the Merger are expected to own approximately 75% of the outstanding shares of common stock of AgeX, and stockholders of AgeX immediately prior to the closing of the Merger are expected to own approximately 25% of the outstanding shares of common stock of AgeX, with Serina as a wholly-owned subsidiary, in each case, on a pro forma fully diluted basis, subject to certain assumptions and exclusions, including the Actual Closing Price (as defined in the Merger Agreement) of AgeX common stock being equal to or greater than $12.00 per share excluding the impact of any Post-Merger Warrant, Incentive Warrant or the issuance of any shares of AgeX common stock upon exercise of any Post-Merger Warrants or Incentive Warrants.
Agex Therapeutics Inc [Member] \| Subsequent Event [Member] \| Juvenescence Limited [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Preferred Stock, Convertible, Shares Issuable												1,421,666
Common Stock, Shares, Issued			1,889,323
Common stock outstanding percentage			75.60%
Agex Therapeutics Inc [Member] \| Subsequent Event [Member] \| 2022 Secured Note [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Proceeds from line of credit						$ 5,800,000
Agex Therapeutics Inc [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted options description								In the case of an optionee who, at the time of grant, owns more than 10% of the combined voting power of all classes of AgeX stock, the exercise price of any incentive stock option must be at least 110% of the fair market value of the common stock on the grant date, and the term of the option may be no longer than five years.
Maximum [Member] \| Agex Therapeutics Inc [Member] \| Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options exercisable								$ 100,000
Restricted Stock And Restricted Stock Units [Member] \| Maximum [Member] \| Agex Therapeutics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted options description								they may purchase or otherwise acquire Restricted Stock or RSUs subject to such vesting, transfer, and repurchase terms, and other restrictions. The price at which Restricted Stock may be issued or sold will be not less than 100% of fair market value.
Stock Appreciation Rights (SARs) [Member] \| Agex Therapeutics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period								10 years
Fair market value of common stock								100.00%
Share-Based Payment Arrangement, Option [Member] \| Agex Therapeutics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of options exercised								0	0
Options granted and outstanding exercised								$ 6,600,000
Two Thousand Twenty Four Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant		1,653,000			1,653,000						1,725,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 14.8715			$ 14.8715
[custom:ShareBasedCompensationArrangementByShareBasedPaymentNumberOfSharesAvailableForGrant]		72,000			(72,378)
[custom:ShareBasedCompensationArrangementByShareBasedPaymentNumberOfSharesAvailableForGrant]		(72,000)			72,378
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value					$ 12.79
Share-Based Payment Arrangement, Expense					$ 874,000
Two Thousand Twenty Four Incentive Plan [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term					2 years
Two Thousand Twenty Four Incentive Plan [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term					4 years
Two Thousand Twenty Four Incentive Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant										1,725,000
Serina Two Thousand Seventeen Stock Option Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant		1,651,634			1,651,634
Conversion of Stock, Shares Issued					0.97682654
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 0.06			$ 0.06
Serina Two Thousand Seventeen Equity Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 0.7751			$ 0.7751
Number of common stock reserved		241,683			241,683
Reverse stock split ratio					reverse stock split ratio of 1 for 35.17.
[custom:ShareBasedCompensationArrangementByShareBasedPaymentNumberOfSharesAvailableForGrant]					12,212
[custom:ShareBasedCompensationArrangementByShareBasedPaymentNumberOfSharesAvailableForGrant]					(12,212)
Serina Two Thousand Seventeen Equity Incentive Plan [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 13.19			$ 13.19
Serina Two Thousand Seventeen Equity Incentive Plan [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 26.73			$ 26.73
Two Thousand Seventeen Equity Incentive Plan [Member] \| Agex Therapeutics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of common stock reserved								241,683
Granted options description								No person shall be granted, during any one year period, options to purchase, or SARs with respect to, more than 28,433 shares in the aggregate, or any Awards of Restricted Stock or RSUs with respect to more than 14,216 shares in the aggregate. If an Award is to be settled in cash, the number of shares on which the Award is based shall not count toward the individual share limit.
Two Thousand Seventeen Equity Incentive Plan [Member] \| Maximum [Member] \| Agex Therapeutics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options to purchase shares								28,433
Two Thousand Seventeen Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Maximum [Member] \| Agex Therapeutics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options to purchase shares								14,216