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Related-Person Transactions - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Related Party Transaction [Line Items]    
Related Party Transaction, Amounts of Transaction $ 125,000us-gaap_RelatedPartyTransactionAmountsOfTransaction $ 55,000us-gaap_RelatedPartyTransactionAmountsOfTransaction
Accounts Receivable, Related Parties, Current 24,000us-gaap_AccountsReceivableRelatedPartiesCurrent 14,000us-gaap_AccountsReceivableRelatedPartiesCurrent
Synecor, LLC [Member]    
Related Party Transaction [Line Items]    
Payments to Acquire in Process Research and Development 66,000us-gaap_PaymentsToAcquireInProcessResearchAndDevelopment
/ dei_LegalEntityAxis
= trxc_SynecorLlcMember		 90,000us-gaap_PaymentsToAcquireInProcessResearchAndDevelopment
/ dei_LegalEntityAxis
= trxc_SynecorLlcMember
Miami Lease Agreement [Member]    
Related Party Transaction [Line Items]    
Accrued Rent, Current $ 89,000us-gaap_AccruedRentCurrent
/ us-gaap_LineOfCreditFacilityAxis
= trxc_MiamiLeaseAgreementMember		 $ 48,000us-gaap_AccruedRentCurrent
/ us-gaap_LineOfCreditFacilityAxis
= trxc_MiamiLeaseAgreementMember
Officer [Member] | Synecor, LLC [Member] | Common Stock [Member]    
Related Party Transaction [Line Items]    
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 9.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ dei_LegalEntityAxis
= trxc_SynecorLlcMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_OfficerMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 12.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ dei_LegalEntityAxis
= trxc_SynecorLlcMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_OfficerMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember