XML 27 R71.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Note 13 - Related Party Transactions (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Mar. 30, 2014 | Mar. 31, 2013 | Mar. 25, 2012
Accounting Firm where Charles Raich Served as Managing Partner [Member] |  |  |
Note 13 - Related Party Transactions (Details) [Line Items] |  |  |
Related Party Transaction, Amounts of Transaction | $ 130 | $ 136 | $ 127
Fim where Lorber Serves as Consultant [Member] |  |  |
Note 13 - Related Party Transactions (Details) [Line Items] |  |  |
Related Party Transaction, Amounts of Transaction | $ 24 | $ 25 | $ 26

X
- Details
Name: | nath_Note13RelatedPartyTransactionsDetailsLineItems
Namespace Prefix: | nath_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
Name: | us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration