Name:	tess_DebtInstrumentApplicableRateEventOfDefaultAdditionalIncrease
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Maximum borrowing availability amount without maintaining fixed charge coverage ratio, as determined in accordance with the agreement.

No definition available.

Name:	tess_DebtInstrumentBorrowingAvailabilityThresholdFixedChargeCoverageRatio
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The period for maintaining threshold excess availability amount.

No definition available.

Name:	tess_DebtInstrumentExcessAvailabilityThresholdPeriod
Namespace Prefix:	tess_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Number of financial covenants.

No definition available.

Name:	tess_DebtInstrumentFinancialCovenantNumber
Namespace Prefix:	tess_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Reduction in applicable rates and fees over agreed upon period under terms of agreement

No definition available.

Name:	tess_DebtInstrumentReductionInRatesAndFees
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The threshold amount of excess availability.

No definition available.

Name:	tess_DebtInstrumentThresholdExcessAvailability
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the threshold fixed charge coverage ratio under the debt instrument covenant.

No definition available.

Name:	tess_DebtInstrumentThresholdFixedChargeCoverageRatio
Namespace Prefix:	tess_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

Current aged inventory cap under terms of credit facility.

No definition available.

Name:	tess_LineOfCreditFacilityAgedInventoryCapCurrent
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Future aged inventory cap under terms of credit facility.

No definition available.

Name:	tess_LineOfCreditFacilityAgedInventoryCapFuture
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The Availability Block amount under the terms of the agreement.

No definition available.

Name:	tess_LineOfCreditFacilityAvailabilityBlock
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Percentage of eligible accounts used in determining borrowing base as defined under the terms of the credit facility.

No definition available.

Name:	tess_LineOfCreditFacilityBorrowingBaseAsPercentageOfEligibleReceivables.
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Inventory age threshold used in determining borrowing base under the terms of the credit facility.

No definition available.

Name:	tess_LineOfCreditFacilityBorrowingBaseFormulaInventoryAge
Namespace Prefix:	tess_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The aggregate borrowing capacity under the credit facility, consisting of the maximum borrowing capacity plus the contingent increase, if any one or more of the existing banks or new banks agree to provide such increased commitment amount.

No definition available.

Name:	tess_LineOfCreditFacilityContingentIncreaseAggregateMaximumBorrowingCapacity
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The percentage of maximum amount of credit facility used in calculating excess availability under financial covenant.

No definition available.

Name:	tess_LineOfCreditFacilityExcessAvailabilityPercentageOfMaximumAmountOfCreditFacility
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Excess Availability threshold for credit facility as a percent under terms of the agreement.

No definition available.

Name:	tess_LineOfCreditFacilityExcessAvailabilityThresholdPercentage
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Minimum period over which entity must maintain Fixed Charge Coverage Ratio threshold for release of mortgage under the terms of the agreement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

No definition available.

Name:	tess_LineOfCreditFacilityFixedChargeCoverageRatioMinimumPeriodToMaintain
Namespace Prefix:	tess_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Period over which Fixed Charge Coverage Ratio is calculated, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

No definition available.

Name:	tess_LineOfCreditFacilityFixedChargeCoverageRatioTrailingPeriod
Namespace Prefix:	tess_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Adjustment to base interest rate (as a percent).

No definition available.

Name:	tess_LineOfCreditFacilityInterestRateAdjustment
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Inventory cap under terms of credit facility.

No definition available.

Name:	tess_LineOfCreditFacilityInventoryCap
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility, where usage is greater threshold.

No definition available.

Name:	tess_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentageUsageGreaterThanThreshold
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility, where usage is less than threshold.

No definition available.

Name:	tess_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentageUsageLessThanThreshold
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Usage threshold expressed as a percentage of the line of credit facility for determining fee for unused credit capacity under the credit facility

No definition available.

Name:	tess_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentageUsageThreshold
Namespace Prefix:	tess_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: 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(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The effective interest rate at the end of the reporting period.

Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

The effective interest rate during the reporting period.

Name:	us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

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

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

No definition available.

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_DebtInstrumentAxis=tess_RevolvingCreditFacility2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_StatementScenarioAxis=tess_DebtInstrumentCovenantIfFixedCoverageRatioIsLessThan1.10Member
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
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Data Type:	na
Balance Type:
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Name:	srt_StatementScenarioAxis=tess_DebtInstrumentCovenantIfFixedCoverageRatioIsGreaterThanOrEqualTo1.10Member
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	srt_StatementScenarioAxis=tess_DebtInstrumentCovenantLaterOfDecember312023AndFixedCoverageRatioNotLessThan1.00Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_StatementScenarioAxis=tess_DebtInstrumentCovenantExcessAvailabilityGreaterThan30PercentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_StatementScenarioAxis=tess_DebtInstrumentCovenantExcessAvailabilityAtLeast20PercentAndLessThanOrEqualTo30PercentMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	srt_StatementScenarioAxis=tess_DebtInstrumentCovenantExcessAvailabilityLessThan20PercentMember
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