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Contingencies (Details) (Legal Proceedings [Member], USD $)
3 Months Ended
Mar. 31, 2015
Legal Proceedings [Member]
 
Contingencies (Details) [Line Items]  
Loss Contingency, Accrual, Current $ 593,000us-gaap_LossContingencyAccrualCarryingValueCurrent
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= tlx_LegalProceedingsMember
Accrued Liabilities 600,000us-gaap_AccruedLiabilitiesCurrentAndNoncurrent
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= tlx_LegalProceedingsMember
Loss Contingency, Settlement Agreement, Terms Of the settlement, $424,000 has been paid as of March 31, 2015, with the remainder due in monthly installments through April 1, 2016.
Payments for Legal Settlements $ 424,000us-gaap_PaymentsForLegalSettlements
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= tlx_LegalProceedingsMember