NOTES PAYABLE (Details Narrative) - Convertible Notes Payable [Member] - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2011
Debt Instrument, Convertible, Conversion Price	$ 1,125
Debt Instrument, Interest Rate During Period	5.00%	5.00%
Debt Instrument, Maturity Date			Mar. 08, 2015
Cumulative Liability	$ 16,900,000	$ 16,700,000
Ariston [Member]
Percentage Of Cash Proceeds From Operation To Repay Interest On Convertible Debt	50.00%

No definition available.

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Balance Type:	credit
Period Type:	duration

- Definition

Reflects level of percentage of net product cash flow received from the exploitation or commercialization of certain product candidates to repay certain convertible debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	tgtx_
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Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

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Namespace Prefix:
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