XML 52 R41.htm IDEA: XBRL DOCUMENT
v3.25.2

Note C - Revenues - Contract Liabilities From Contracts With Customers (Details) - USD ($) $ in Thousands | Jun. 29, 2025 | Mar. 30, 2025 | Jun. 30, 2024 | Mar. 31, 2024
--- | --- | --- | --- | ---
Deferred franchise fees (a) | [1] | $ 918 |  | $ 1,006 |  |  |
License Royalties and Advertising Fund [Member] |  |  |  |  |  |  |
Deferred revenues, which are included in “Accrued expenses and other current liabilities” (b) |  | $ 747 | [2] | $ 1,392 | [2] | $ 723 | $ 1,375
[1] | Deferred franchise fees of $274 and $644 as of June 29, 2025 and $309 and $697 as of March 30, 2025 are included in Deferred franchise fees – current and long term, respectively.
[2] | Includes $497 of deferred license royalties and $250 of deferred advertising fund revenue as of June 29, 2025 and $892 of deferred license royalties and $500 of deferred advertising fund revenue as of March 30, 2025.

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

X
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479837/606-10-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-8 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479837/606-10-45-2 + Details
Name: | us-gaap_ContractWithCustomerLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_ProductOrServiceAxis=nath_LicenseRoyaltiesAndAdvertisingFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |