STOCKHOLDERS' EQUITY (Details 2) (USD $)	3 Months Ended
Mar. 31, 2015
Equity Incentive Plans Warrant Activity [Line Items]
Warrants, Outstanding at Beginning Balance	4,148,228
Warrants, Issued	0tgtx_WarrantOrRightIssued
Warrants, Exercised	(177,448)tgtx_WarrantOrRightExercised
Warrants, Expired	(11,364)tgtx_WarrantOrRightExpired
Warrants, Outstanding at Ending Balance	3,959,416
Weighted - average exercise price of Warrants, Outstanding at Beginning Balance	$ 0.94
Weighted - average exercise price of Warrants, Issued	$ 0
Weighted - average exercise price of Warrants, Exercised	$ 2.34
Weighted - average exercise price of Warrants, Expired	$ 2.25
Weighted - average exercise price of Warrants, Outstanding at Ending Balance	$ 0.88
Aggregate Intrinsic Value of Warrants, Outstanding at Beginning Balance	$ 61,792,184
Aggregate Intrinsic Value of Warrants, Outstanding at Ending Balance	$ 57,817,178

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Reflects the aggregate intrinsic value of warrants outstanding.

+ References

No definition available.

+ Details

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- Definition

Reflects the number of warrants exercised during the period.

+ References

No definition available.

+ Details

Name:	tgtx_WarrantOrRightExercised
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- Definition

Reflects the weighted average exercise price of warrants Exercised.

+ References

No definition available.

+ Details

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Namespace Prefix:	tgtx_
Data Type:	num:perShareItemType
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- Definition

Reflects the number of warrants expired during the period.

+ References

No definition available.

+ Details

Name:	tgtx_WarrantOrRightExpired
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- Definition

Reflects the weighted average exercise price of warrants Expired.

+ References

No definition available.

+ Details

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Namespace Prefix:	tgtx_
Data Type:	num:perShareItemType
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- Definition

Reflects the number of warrants issued during the period.

+ References

No definition available.

+ Details

Name:	tgtx_WarrantOrRightIssued
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- Definition

Reflects the weighted average exercise price of warrants issued.

+ References

No definition available.

+ Details

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Namespace Prefix:	tgtx_
Data Type:	num:perShareItemType
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- Definition

Reflects the weighted average exercise price of warrants outstanding.

+ References

No definition available.

+ Details

Name:	tgtx_WarrantOrRightOutstandingWeightedAverageExercisePrice
Namespace Prefix:	tgtx_
Data Type:	num:perShareItemType
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Period Type:	instant

- Definition

Number of warrants or rights outstanding.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Article 4

+ Details

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