v3.26.1

Series B Redeemable Preferred Stock (Temporary Equity) (Details Narrative) - USD ($)		2 Months Ended	12 Months Ended
	Dec. 19, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2024
Series B Convertible Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Temporary Equity, Carrying Amount, Attributable to Parent		$ 5,946,284	$ 5,946,284	$ 0
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Payments of Stock Issuance Costs			680,000
Temporary Equity, Carrying Amount, Attributable to Parent		5,946,284	$ 5,946,284
Redeemable Preferred Stock Conversion [Member]
Class of Stock [Line Items]
Accretion Expense		$ 453,334
Redeemable Preferred Stock Conversion [Member] \| Series B Convertible Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Conversion of Stock, Shares Converted		973
Redeemable Preferred Stock Conversion [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Conversion of Stock, Shares Issued		93,926
Series B Preferred Stock Purchase Agreement [Member] \| Spartan Capital Securities LLC [Member]
Class of Stock [Line Items]
Proceeds from Issuance of Redeemable Preferred Stock	$ 6,320,000
Payments of Stock Issuance Costs	$ 680,000

Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

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FOCUS UNIVERSAL INC. 10-K