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v3.21.1

Commitments and Contingencies - Retirement Plan (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 USD ($)
401(k) |
Retirement Plan |
Discretionary contributions | $ 0.1

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_RetirementPlanNameAxis=tcmd_DefinedContribution401kRetirementPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |