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Note Q - Leases (Tables)

3 Months Ended

Jun. 29, 2025

Notes Tables

Lease, Cost [Table Text Block]

		Thirteen weeks ended
		June 29, 2025				June 30, 2024
Operating lease cost		$	438			$	441
Variable lease cost			464				460
Less: Sublease income, net			(21	)			(21	)
Total net lease cost		$	881			$	880

		Thirteen weeks ended
		June 29, 2025				June 30, 2024
Restaurant operating expenses		$	682			$	687
General and administrative expenses			220				214
Less: Other income, net			(21	)			(21	)
Total net lease cost		$	881			$	880

Leases, Cash Flows [Table Text Block]

		Thirteen weeks ended
		June 29, 2025				June 30, 2024
Operating cash flows from operating leases		$	561			$	553

Lessee, Operating Leases, Weighted Average Remaining Lease Term and Discount Rate [Table Text Block]

Weighted average remaining lease term (years):			3.3
Weighted average discount rate:			8.479	%

Operating Lease, Maturity [Table Text Block]

		Payments				Receipts
		Operating Leases				Subleases				Net Leases
Fiscal year:
2026 (a)		$	1,361			$	192			$	1,169
2027			1,931				281				1,650
2028			1,781				129				1,652
2029			434				-				434
2030			171				-				171
Thereafter			-				-				-
Total lease commitments		$	5,678			$	602			$	5,076
Less: Amount representing interest			(679	)
Present value of lease liabilities (b)		$	4,999

Operating Lease, Lease Income [Table Text Block]

		Thirteen weeks ended
		June 29, 2025				June 30, 2024
Operating lease income, net		$	21			$	21

X

- Definition

The tabular disclosure for cash flows on leases.

+ References

No definition available.

+ Details

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Namespace Prefix:	nath_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The tabular disclosure for weighted average remaining lease term and weighted-average discount rate for operating leases of the lessee.

+ References

No definition available.

+ Details

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Namespace Prefix:	nath_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The tabular disclosure for maturity of operating lease both as lessee and lessor.

+ References

No definition available.

+ Details

Name:	nath_OperatingLeaseMaturityTableTextBlock
Namespace Prefix:	nath_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Tabular disclosure of components of income from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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