Cover - USD ($)	12 Months Ended
	Dec. 31, 2021	Apr. 25, 2022	Jun. 30, 2021
Document Type	10-K/A
Amendment Flag	true
Amendment Description	This Amendment No. 1 to Form 10-K/A (this “Amendment”) amends the Annual Report on Form 10-K of SWK Holdings Corporation (the “Company” or “SWK”) for the year ended December 31, 2021, originally filed with the U.S. Securities and Exchange Commission (“SEC”) on March 25, 2022 (the “Original Filing”).This Amendment is being filed for the purpose of providing the information required by Items 10 through 14 of Part III of the Annual Report on Form 10-K. This information was previously omitted from the Original Filing in reliance on General Instruction G(3) to the Annual Report on Form 10-K, which permits the above-referenced Items to be incorporated in the Annual Report on Form 10-K by reference from a definitive proxy statement, if such definitive proxy statement is filed no later than 120 days after December 31, 2021. At this time, the Company is filing this Amendment to include Part III information in its Annual Report on Form 10-K because the Company will not file a definitive proxy statement within 120 days of December 31, 2021. The reference on the cover of the Original Filing to the incorporation by reference to portions of our definitive proxy statement into Part III of the Original Filing is hereby deleted.In accordance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Items 10 through 14 of Part III of the Original Filing are hereby amended and restated in their entirety. In addition, pursuant to Rule 12b-15 under the Exchange Act, the Company is amending and refiling Item 15 of Part IV, to reflect the inclusion of currently dated certifications required under Section 302 of the Sarbanes-Oxley Act of 2002, as Exhibits 31.03 and 31.04. Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4 and 5 of the certifications have been omitted. Additionally, we are not including the certificates under Section 906 of the Sarbanes-Oxley Act of 2002 as no financial statements are being filed with this Amendment. We have also included additional exhibits that were inadvertently omitted from the Original filing.Except as described above, no other changes have been made to the Original Filing. Except as otherwise indicated herein, this Amendment continues to speak as of the date of the Original Filing, and the Company has not updated the disclosures contained therein to reflect any events that occurred subsequent to the date of the Original Filing. Accordingly, this Amendment should be read in conjunction with our Original Filing and with our filings with the SEC subsequent to the filing of our Original Filing.
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Current Fiscal Year End Date	--12-31
Entity File Number	001-39184
Entity Registrant Name	SWK HOLDINGS CORPORATION
Entity Central Index Key	0001089907
Entity Tax Identification Number	77-0435679
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	14755 Preston Road
Entity Address, Address Line Two	Suite 105
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75254
City Area Code	(972)
Local Phone Number	687-7250
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 60,761,663
Entity Common Stock, Shares Outstanding		12,834,760
Auditor Name	BPM LLP
Auditor Location	San Jose, California
Auditor Firm ID	207
Common Stock [Member]
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	SWKH
Security Exchange Name	NASDAQ
Preferred Stock [Member]
Title of 12(b) Security	Preferred Stock Purchase Rights
Trading Symbol	SWKH
Security Exchange Name	NASDAQ