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Marketable Securities (Details)	3 Months Ended
	Mar. 31, 2021 USD ($) item	Dec. 31, 2020 USD ($)
Marketable Securities
Marketable securities	$ 0	$ 0
Net pre-tax unrealized gains for marketable securities	0
Marketable securities sold	$ 0
Number of marketable securities in an unrealized loss position | item	0

X

- Definition

Number of marketable securities in an unrealized loss position.

+ References

No definition available.

+ Details

Name:	tcmd_MarketableSecuritiesInUnrealizedLossPosition
Namespace Prefix:	tcmd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The cash inflow associated with the aggregate amount received by the entity through sale of marketable securities (held-to-maturity or available-for-sale) during the period.

+ References

No definition available.

+ Details

Name:	tcmd_ProceedsFromSaleOfMarketableSecurities
Namespace Prefix:	tcmd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount before tax and reclassification adjustments of unrealized holding gain (loss) on marketable securities.

+ References

No definition available.

+ Details

Name:	tcmd_UnrealizedHoldingGainLossOnMarketableSecuritiesArisingDuringPeriodBeforeTax
Namespace Prefix:	tcmd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of investment in marketable security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

Name:	us-gaap_MarketableSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant