Subsequent Events (Details) ft² in Thousands	Jan. 05, 2022 USD ($) ft²	Dec. 30, 2021 USD ($) ft²	Jul. 12, 2021 USD ($)	Oct. 29, 2020 USD ($)
2020 Revolving Credit Facility
Subsequent Event
Maximum borrowing capacity			$ 75,000,000	$ 75,000,000
Excess availability, threshold amount				$ 12,500,000
Maximum borrowing availability without maintaining fixed charge coverage ratio			$ 62,500,000
Subsequent Event | 2020 Revolving Credit Facility
Subsequent Event
Maximum borrowing capacity	$ 80,000,000
Amount of Availability Block	$ 10,000,000
Period of Availability Block	1 year
Period over which entity may be relieved of any Fixed Charge Coverage Ratio testing without regard to the amount of Excess Availability	1 year
Excess availability, threshold amount	$ 15,000,000
Fixed charge coverage ratio	1
Maximum borrowing availability without maintaining fixed charge coverage ratio	$ 70,000,000
Period within which entity will pledge collateral	60 days
Area of facility to be pledged as collateral | ft²	184
Minimum period over which entity must maintain Fixed Charge Coverage Ratio threshold for release of mortgage	6 months
Minimum amount of excess availability required for release of collateral	$ 17,500,000
Subsequent Event | TESSCO Reno Holding LLC ("Holding")
Subsequent Event
Area of operating facility owned (in square feet) | ft²		115
Subsequent Event | TESSCO Reno Holding LLC ("Holding") | Note
Subsequent Event
Aggregate sum borrowed		$ 6,500,000
Frequency of periodic payment		monthly
Monthly payment		$ 47,857.78
Fixed interest rate (as a percent)		3.38%
First interest period		5 years
Debt instrument term		15 years
Potential additional amount to be advanced		$ 250,000
Subsequent Event | TESSCO Reno Holding LLC ("Holding") | Note | Minimum
Subsequent Event
Interest rate adjustment period, one		5 years
Interest rate adjustment period, two		10 years