Description of Business and Basis of Presentation (Details)	Dec. 27, 2015
Description of Business and Basis of Presentation
Percentage of sales in US	98.00%

The percentage of company sales that occurs in the United States.

No definition available.

Name:	tess_PercentageOfSalesInUs
Namespace Prefix:	tess_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant