ACQUISITION OF CORE ONCOLOGY'S PROSTATE BRACHYTHERAPY CUSTOMER BASE (Detail Textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012
Asset Acquisition Disclosure [Abstract]
Threshold amount of actual revenue generated from the acquired customers	$ 2.5
Prepaid cash related to acquisition	5.3
Total purchase price of business acquired	$ 5.3

Revenue amount that must be exceeded from the acquired customers for the twelve -month period from September 2012 to August 2013 for the calculation of the total purchase price.

No definition available.

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Namespace Prefix:	tgx_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration