Summary of Significant Accounting Policies (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Jun. 01, 2019	Jun. 02, 2018	Mar. 03, 2019	Mar. 02, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset	$ 46,780		$ 50,000	$ 0
Net sales	355,365	$ 336,531
Cost of sales		255,801
Gross profit	80,967	80,730
Selling, general and administrative expenses	57,926	58,735
Operating income	23,041	21,995
Income tax expense	4,987	4,881
Net earnings	15,443	$ 15,373
Inventories	77,345			78,344
Costs and earnings on contracts in excess of billings	61,069			55,095
Billings on contracts in excess of costs and earnings	20,230			21,478
Other current liabilities	85,090			92,696
Retained earnings	$ 360,394			$ 367,597