Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Dec. 31, 2025
Trading Arrangements, by Individual [Table]
Material Terms of Trading Arrangement [Text Block]	Item 5. Other Information On February 4, 2026, the Company and 3801 East Second, LLC (East Second), which is owned by FTVC LLC, a related party owned by members of the Isely family, entered into the First Amendment to Ground Lease (the Amended Lakewood Lease) modifying the terms of the previously disclosed Ground Lease dated March 1, 2001, between the Company and East Second, pursuant to which the Company leases real property in Lakewood, Colorado. The Amended Lakewood Lease extends the lease term for an additional 24 months. The Company will pay annual rent of approximately $0.1 million pursuant to the Amended Lakewood Lease. As required under the Company’s related party transaction policy, the Company’s audit committee approved the terms of this transaction and the Amended Lakewood Lease. The foregoing description of the Amended Lakewood Lease does not purport to be complete and is qualified in its entirety by reference to its complete text, copy of which is filed as Exhibit 10.1 to this report and is incorporated by reference herein. This disclosure is responsive to Item 1.01 of Form 8-K.
Rule 10b5-1 Arrangement Adopted [Flag]	false
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false

Natural Grocers by Vitamin Cottage, Inc. 10-Q