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BUSINESS DESCRIPTION (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 1 Months Ended 12 Months Ended 3 Months Ended
Feb. 02, 2012
Dec. 29, 2010
Dec. 31, 2011
Dec. 31, 2014
operating_segments
Mar. 31, 2015
Subsequent Event [Line Items]          
Proceeds from issuance of common stock and convertible notes $ 22.0tbio_Proceedsfromissuanceofcommonstockandconvertiblenotes $ 6.0tbio_Proceedsfromissuanceofcommonstockandconvertiblenotes $ 3.0tbio_Proceedsfromissuanceofcommonstockandconvertiblenotes    
Mutations occurrence as percentage of sample, less than       5.00%tbio_MutationsOccurrenceasPercentageofSample  
Mutations at lower levels, percentage       0.01%tbio_MutationsOccurrenceatLowerLevelsPercentage  
Number of operating segments       2us-gaap_NumberOfOperatingSegments  
Working capital       2.3tbio_WorkingCapital  
Subsequent Event          
Subsequent Event [Line Items]          
Proceeds from issuance of common stock and convertible notes         $ 7.1tbio_Proceedsfromissuanceofcommonstockandconvertiblenotes
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember