Description of Business and Significant Accounting Policies - Asset Retirement Obligations (Details) - USD ($)	Feb. 01, 2020	Feb. 02, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Liability for asset retirement obligations	$ 822,000	$ 768,000
Capitalized Costs, Asset Retirement Costs	$ 213,000	$ 266,000

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

Name:	us-gaap_AssetRetirementObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant