Summary of Significant Accounting Policies and Related Data (Details Textual) - USD ($) $ in Millions	12 Months Ended
Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Accounting Policies [Line Items]
Reporting period monthly lag	2 months
Fiscal time period	P53W	P52W	P52W
Percentage of net sales recorded on a percentage of completion basis	26.00%		25.00%
Research and development expense	$ 8.6	$ 8.0	$ 6.5
Cost of Sales
Accounting Policies [Line Items]
Research and development expense	2.2	2.4	2.4
Selling, general and administrative expenses
Accounting Policies [Line Items]
Advertising expense	$ 1.1	$ 1.2	$ 1.1
Minimum
Accounting Policies [Line Items]
Performance Period For Percentage Of Completion Contracts	12 months
Maximum
Accounting Policies [Line Items]
Performance Period For Percentage Of Completion Contracts	18 months

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 730
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

Name:	us-gaap_ResearchAndDevelopmentExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration