Name:	tgtx_ClassOfWarrantOrRightFairValue
Namespace Prefix:	tgtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount drawn on first advance.

No definition available.

Name:	tgtx_DebtInstrumentFirstAdvanceDrawn
Namespace Prefix:	tgtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount available under fourth advance of debt.

No definition available.

Name:	tgtx_DebtInstrumentFourthAdvanceAvailable
Namespace Prefix:	tgtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The contingent increase above the maximum borrowing capacity under the credit facility, if any one or more of the existing banks or new banks agree to provide such increased commitment amount.

No definition available.

Name:	tgtx_LineOfCreditFacilityContingentIncreaseAdditionalBorrowingCapacity
Namespace Prefix:	tgtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Minimum amount raised from unrestricted cash proceeds.

No definition available.

Name:	tgtx_MinimumAmountRaisedFromUnrestrictedCashProceeds
Namespace Prefix:	tgtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Minimum amount of expected prepayment of debt.

No definition available.

Name:	tgtx_MinimumExpectedPrepaymentOfDebt
Namespace Prefix:	tgtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Minimum Indebtedness involved by the borrower in default.

No definition available.

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

Number of additional advances drawn at the option of borrower.

No definition available.

Name:	tgtx_NumberOfAdditionalAdvances
Namespace Prefix:	tgtx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of advances.

No definition available.

Name:	tgtx_NumberOfAdvances
Namespace Prefix:	tgtx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of amortization payments installments.

No definition available.

Name:	tgtx_NumberOfAmortizationPaymentsInstallment
Namespace Prefix:	tgtx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Number of business days.

No definition available.

Name:	tgtx_NumberOfBusinessDays
Namespace Prefix:	tgtx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of interest only payments installments.

No definition available.

Name:	tgtx_NumberOfInterestOnlyPaymentsInstallment
Namespace Prefix:	tgtx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Percentage of Interest On Past Due Outstanding.

No definition available.

Name:	tgtx_PercentageOfInterestOnPastDueOutstanding
Namespace Prefix:	tgtx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of prepayment charge.

No definition available.

Name:	tgtx_PercentageOfPrepaymentCharge
Namespace Prefix:	tgtx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Warrant coverage percentage.

No definition available.

Name:	tgtx_WarrantCoveragePercentage
Namespace Prefix:	tgtx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Warrant exercisable term.

No definition available.

Name:	tgtx_WarrantExercisableTerm
Namespace Prefix:	tgtx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Amount of amortization expense attributable to debt issuance costs.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(8))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

Name:	us-gaap_AmortizationOfFinancingCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

This element represents interest incurred for borrowed money which was used to produce goods or render services.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Name:	us-gaap_FinancingInterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_UnamortizedDebtIssuanceExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DebtInstrumentAxis=tgtx_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_ExtinguishmentOfDebtAxis=tgtx_WithinFirstTwelveMonthsOfClosingDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_ExtinguishmentOfDebtAxis=tgtx_AfterTwelveMonthsButOnOrBeforeTwentyFourMonthsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_ExtinguishmentOfDebtAxis=tgtx_AfterTwentyFourMonthsOfClosingDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: