The yearly payments due under the lease entered into in connection with the possession of the office space.

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Represents the purchase price of per share.

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Number of common shares granted in connection with license agreement by issue of warrants during the reporting period.

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Occupancy percentage of the office space.

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Sum of the amounts paid in advance for capitalized costs that will be expensed with Research and development.

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Royalty revenue is derived from a percentage or stated amount of sales proceeds or revenue generated by the third party using the entity's property. Examples of property from which royalties may be derived include patents and oil and mineral rights.

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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Costs of sales and operating expenses for the period incurred from transactions with related parties.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of other research and development expense.

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Cash received on stock transaction after deduction of issuance costs.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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RELATED PARTY TRANSACTIONS (Details Textual) (USD $)	1 Months Ended	12 Months Ended		1 Months Ended		0 Months Ended
RELATED PARTY TRANSACTIONS (Details Textual) (USD $)	Jul. 18, 2013	Dec. 31, 2014	Dec. 31, 2013	Feb. 28, 2015	Jan. 30, 2012	Oct. 03, 2014	Oct. 31, 2014
Related Party Transaction [Line Items]
Stock Issued During Period, Shares, New Issues	5,700,000
Sale of Stock, Price Per Share		$ 10.31us-gaap_SaleOfStockPricePerShare
Other research and development		$ 26,004,687	$ 12,621,161
Prepaid Research And Development		6,179,743tgtx_PrepaidResearchAndDevelopment	1,742,824tgtx_PrepaidResearchAndDevelopment
LFB License Agreement [Member]
Related Party Transaction [Line Items]
Minimum Value of Shares To Be Purchased		750,000
LFB License Agreement [Member] \| Subsequent Event [Member]
Related Party Transaction [Line Items]
Sale of Stock, Number of Shares Issued in Transaction				114,855
Sale of Stock, Price Per Share				$ 6.53
Sale of Stock, Consideration Received on Transaction				750,000
Opus [Member]
Related Party Transaction [Line Items]
Accounts Payable		23,000
Costs and Expenses, Related Party		129,000
Royalty Revenue Description		Opus Point Partners, LLC, who identified the opportunity and advised us on the transaction, will be entitled to receive a 1% royalty for annual sales of up to $1 billion
LFB Group [Member]
Related Party Transaction [Line Items]
Stock Issued During Period, Shares, New Issues					5,000,000
Other research and development		5,200,000	6,300,000
Accounts Payable		52,000	1,745,000
Number Of Common Stock Shares Granted In Connection With License Agreement By Issue Of Warrants					2,500,000
Common Stock Purchase Price Per Share					$ 0.001
Prepaid Research And Development		1,886,518	1,629,340
LFB Group [Member] \| Maximum [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage		10.00%
Desk Agreement [Member]
Related Party Transaction [Line Items]
Costs and Expenses, Related Party		80,000
Lease payment term						15 year
Average Annual Rental Payments						1,100,000
Security Deposit							$ 600,000
Percentage of Occupancy						40.00%