Engineering Development (Details) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Engineering Development [Abstract]
Engineering Development Expenses	$ 273,000	$ 215,000

Total amount of Engineering Development expenses included in general and administrative expenses during the period.

No definition available.

Name:	tlx_EngineeringDevelopmentExpenses
Namespace Prefix:	tlx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration