SWK Holdings Corporation and Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) employee segment partner	Dec. 31, 2023 USD ($) partner	Mar. 07, 2025 USD ($) party
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of reportable segments | segment	2
Number of full-time employees | employee	24
Collateral on foreign currency forward contract	$ 2,750	$ 2,750
Number of business partners | partner	2	3
Revenue Benchmark | Customer Concentration Risk | One Customer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage	11.60%
Revenue Benchmark | Customer Concentration Risk | Two Customers
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage		24.10%
Interest and Account Receivable | Business Partner Concentration Risk | Two Business Partners
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage	36.60%
Interest and Account Receivable | Business Partner Concentration Risk | Three Business Partners
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage		35.00%
Pharmaceutical Development Revenues Benchmark | Customer Concentration Risk | One Customer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage	96.00%
Pharmaceutical Development Revenues Benchmark | Customer Concentration Risk | Two Customers
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage		99.80%
Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of parties with an executed transaction | party			58
Aggregate amount funded for financial products			$ 852,500