XOMA Royalty Corporation Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation and Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Capital Stock - ATM Agreements (Details)

v3.26.1

Capital Stock - ATM Agreements (Details) - USD ($) $ in Thousands			12 Months Ended
	Oct. 03, 2025	Apr. 09, 2021	Dec. 31, 2025
Sale of stock
Proceeds from issuance of common stock			$ 323
Proceeds from issuance of preferred stock			$ 4,019
Series B Depositary Shares
Sale of stock
Shares issued (in shares)		1,600,000	160,500
Payments of Stock Issuance Costs		$ 2,900
Depositary share's fractional interest in share of preferred stock		0.001
Proceeds from issuance of preferred stock		$ 40,000	$ 4,000
Common Stock
Sale of stock
Shares issued (in shares)			9,000
2018 Common Stock ATM Agreement \| Maximum
Sale of stock
Sales commission paid per transaction (as a percent)	3.00%
2018 Common Stock ATM Agreement \| Common Stock
Sale of stock
Maximum amount of shares to be issued (in shares)	$ 75,000
2025 Common Stock ATM Agreement
Sale of stock
Shares issued (in shares)	8,966
Sale of stock consideration	$ 300
Payments of Stock Issuance Costs	$ 10,000
2025 Series B Preferred Stock ATM Agreement
Sale of stock
Shares issued (in shares)	160.5
Sale of stock consideration	$ 4,000
Payments of Stock Issuance Costs	100
Proceeds from issuance of preferred stock	4,000
Stock issuance costs	100
2025 Series B Preferred Stock ATM Agreement \| Series B Depositary Shares
Sale of stock
Maximum amount of shares to be issued (in shares)	$ 50,000
Sales commission paid per transaction, preferred stock (as a percent)	3.00%

- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

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Cash received on stock transaction after deduction of issuance costs.

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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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- Definition

The percentage of sales commission to gross proceeds paid to sales agents for the sale of the Company's common shares.

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The amount of stock issuance costs waived.

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