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Long-Term Debt (Details) (USD $)
0 Months Ended 12 Months Ended
Jun. 30, 2011
Mar. 29, 2015
Mar. 30, 2014
Mar. 31, 2013
Mar. 27, 2005
Jun. 30, 2004
Mar. 31, 2009
Scheduled Annual Maturities of Long-Term Debt [Abstract]              
2016   $ 250,700us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths          
2017   1,901,200us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo          
2018   26,700us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree          
2019   27,300us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour          
2020   2,300us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive          
Thereafter   0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive          
Total   2,208,200us-gaap_LongTermDebt          
Secured Debt [Member]              
Debt Instrument [Line Items]              
Principal amount   2,100,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
2,325,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
    4,500,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
 
Maturity date   Jun. 30, 2011          
Extended maturity date   Jul. 01, 2016          
Interest rate variable rate basis         LIBOR    
Interest rate spread on variable rate basis (in hundredths) 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
           
Weighted average interest rate (in hundredths)   2.19%us-gaap_LongtermDebtWeightedAverageInterestRate
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
2.18%us-gaap_LongtermDebtWeightedAverageInterestRate
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
2.21%us-gaap_LongtermDebtWeightedAverageInterestRate
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
     
Interest expense   48,400us-gaap_InterestExpenseDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
54,500us-gaap_InterestExpenseDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
55,600us-gaap_InterestExpenseDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
     
Baltimore County Economic Development Revolving Loan Fund [Member]              
Debt Instrument [Line Items]              
Principal amount   108,200us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= tess_RevolvingCreditFacility1Member
133,400us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= tess_RevolvingCreditFacility1Member
      250,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= tess_RevolvingCreditFacility1Member
Maturity date   Apr. 01, 2019          
Principal and interest payments   2,300us-gaap_DebtInstrumentPeriodicPayment
/ us-gaap_LongtermDebtTypeAxis
= tess_RevolvingCreditFacility1Member
         
Interest expense   $ 2,400us-gaap_InterestExpenseDebt
/ us-gaap_LongtermDebtTypeAxis
= tess_RevolvingCreditFacility1Member
$ 2,900us-gaap_InterestExpenseDebt
/ us-gaap_LongtermDebtTypeAxis
= tess_RevolvingCreditFacility1Member
$ 3,400us-gaap_InterestExpenseDebt
/ us-gaap_LongtermDebtTypeAxis
= tess_RevolvingCreditFacility1Member
     
Interest rate (in hundredths)             2.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= tess_RevolvingCreditFacility1Member