Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Feb. 23, 2024	Jun. 30, 2023
Document Information [Line Items]
Entity Central Index Key	0001001316
Entity Registrant Name	TG THERAPEUTICS, INC.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2023
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	1-32639
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-3898269
Entity Address, Address Line One	3020 Carrington Mill Blvd, Suite 475
Entity Address, City or Town	Morrisville
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27560
City Area Code	212
Local Phone Number	554-4484
Title of 12(b) Security	Common Stock, par value $0.001
Trading Symbol	TGTX
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 3,400,000,000
Entity Common Stock, Shares Outstanding		154,420,772
Auditor Name	KPMG LLP
Auditor Location	New York, NY
Auditor Firm ID	185