FAIR VALUE MEASUREMENTS (Details 1) (USD $)	3 Months Ended
Mar. 31, 2015
Fair Value, Measurement Changes In Level 3 Instruments [Line Items]
Fair value at December 31, 2014	$ 275,190
Interest accrued on face value of 5% Notes	237,657
Change in fair value of Level 3 liabilities	(240,641)
Fair value at March 31, 2015	$ 272,206

Name:	tgtx_FairValueMeasurementChangesInLevel3InstrumentsLineItems
Namespace Prefix:	tgtx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of interest recognized during the period, arising from liabilities measured at fair value on a recurring basis using unobservable inputs (level 3).

+ References

No definition available.

+ Details

Name:	tgtx_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityInterestAccruedIncludedInEarnings
Namespace Prefix:	tgtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant