Name:	tess_CorporateSupportExpenses
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents amounts of product management, purchasing, credit and collections and distribution team expenses, plus freight out and internal and external marketing costs.

No definition available.

Name:	tess_DirectlyAllocatableExpenses
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity, excluding Tier 1 carrier market.

No definition available.

Name:	tess_GrossProfitExcludingTier1CarrierMarket
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Number of product categories reported by the entity.

No definition available.

Name:	tess_NumberOfProductCategories
Namespace Prefix:	tess_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	tess_RevenueAndGrossProfitFromExternalCustomerLineItems
Namespace Prefix:	tess_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Aggregate revenue, excluding Tier 1 carrier market, recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process).

No definition available.

Name:	tess_RevenuesExcludingTier1CarrierMarket
Namespace Prefix:	tess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Gross profit less any expenses that can be directly attributed or allocated to each segment.

No definition available.

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

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

Name:	us-gaap_GrossProfit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Subparagraph 1(i)

-Article 4

Name:	us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

Name:	us-gaap_Revenues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of revenue from external customers for the reportable segment. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 27

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.