Summary of Significant Accounting Policies - Revenue Recognition, Expenses and Shipping and Handling Costs (Details) - USD ($)	12 Months Ended
Mar. 27, 2022	Mar. 28, 2021	Mar. 29, 2020
Revenue Recognition
Accounts receivable, typical payment terms	30 days
Shipping and Handling Costs
Shipping and handling costs	$ 13,249,600	$ 10,036,100	$ 10,222,800
Income Taxes
Provision for tax uncertainties	$ 0	$ 0	$ 0
Maximum
Revenue Recognition
Revenue recorded on net fee basis (as a percent)	1.00%

Typical period of time between product sold and service rendered and receipt of consideration from customer, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

+ Details

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

- Definition

The percentage of net revenue to total revenue recorded where the company is not the principle.

+ References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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

- Definition

Cost incurred during the reporting period in packing and transport of product classified as selling, general and administrative expenses.

+ References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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

- Definition

Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319

+ Details

Name:	us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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