Discontinued Operations - Financial Results of Retail Segment (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 28, 2021	Dec. 27, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Discontinued Operations Income Statement Disclosures
Goodwill impairment					$ 2,600,000					$ 2,600,000
Gain on disposal									$ 3,020,800
Income (loss) from discontinued operations	$ (2,075,700)	$ 4,787,500	$ 2,681,300	$ 237,300	(6,101,500)	$ (2,947,400)	$ 2,093,100	$ 988,300	5,630,400	(5,967,500)	$ 14,428,100
ASSETS
Current portion of assets held for sale	1,196,900				18,849,900				1,196,900	18,849,900
Discontinued Operations, Disposed of by Sale | Ventev brand and other retail-related assets
Discontinued Operations Income Statement Disclosures
Revenues									86,728,300
Cost of goods sold									74,238,800
Gross profit									12,489,500
Selling, general and administrative expenses									7,652,100
Income (loss) from operations									4,837,400
Gain on disposal		$ 3,000,000.0							3,020,800
Income (loss) before provision for (benefit from) income taxes									7,858,200
Provision for (benefit from) income taxes									2,227,800
Income (loss) from discontinued operations									5,630,400
ASSETS
Product inventory, net	1,196,900								1,196,900
Current portion of assets held for sale	$ 1,196,900								$ 1,196,900
Discontinued Operation, Name of Segment [Extensible List]									tess:RetailMarketSegmentMember
Cash provided by operating activities from discontinued operations									$ 13,200,000
Cash provided by investing activities from discontinued operations									$ 9,200,000
Discontinued Operations, Held-for-sale | Ventev brand and other retail-related assets
Discontinued Operations Income Statement Disclosures
Revenues										131,283,900	187,769,000
Cost of goods sold										119,102,800	150,815,000
Gross profit										12,181,100	36,954,000
Selling, general and administrative expenses										15,809,500	17,866,700
Goodwill impairment										2,569,100
Income (loss) from operations										(6,197,500)	19,087,300
Income (loss) before provision for (benefit from) income taxes										(6,197,500)	19,087,300
Provision for (benefit from) income taxes										(230,000)	4,659,200
Income (loss) from discontinued operations										(5,967,500)	$ 14,428,100
ASSETS
Product inventory, net					18,849,900					18,849,900
Current portion of assets held for sale					$ 18,849,900					$ 18,849,900
Discontinued Operation, Name of Segment [Extensible List]										tess:RetailMarketSegmentMember	tess:RetailMarketSegmentMember
Cash provided by operating activities from discontinued operations										$ 11,300,000	$ 17,300,000
Cash provided by investing activities from discontinued operations										$ 0	$ 0