Commitments and Contingent Liabilities (Details 1) - USD ($) $ in Thousands	3 Months Ended
	May. 30, 2015	May. 31, 2014
Guarantees and warranties
Balance at beginning of period	$ 11,275	$ 11,978
Additional accruals	1,926	1,060
Claims paid	(1,173)	(891)
Balance at end of period	$ 12,028	$ 12,147