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Note D - Revenues - Contract Liabilities From Contracts With Customers (Details) - USD ($) $ in Thousands | Dec. 27, 2020 | Mar. 29, 2020
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Deferred franchise fees (a) | [1] | $ 1,780 | $ 1,917
[1] | Deferred franchise fees of $227,000 and $1,553,000 as of December 27, 2020 and $230,000 and $1,687,000 as of March 29, 2020 are included in Deferred franchise fees – current and long term, respectively.

X
- Definition Amount of obligation to transfer good or service to customer for which consideration is receivable. Excludes the amount of cash received. + References No definition available. + Details
Name: | nath_ContractWithCustomerLiabilityExcludingCashReceived
Namespace Prefix: | nath_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant