Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
Feb. 26, 2017	Feb. 28, 2016	Mar. 01, 2015
Net earnings	$ 9,283	$ 18,029	$ 20,043
Other comprehensive earnings, net of tax:
Foreign currency translation	30	62	185
Unrealized gains on marketable securities:
Other comprehensive (loss) earnings	(445)	3	247
Total comprehensive earnings	8,838	18,032	20,290
Gains on Marketable Securities [Member]
Unrealized gains on marketable securities:
Unrealized holding gains (losses) arising during the period	76	52	90
Less: reclassification adjustment for gains included in net earnings	(228)	(18)	(21)
Losses on Marketable Securities [Member]
Unrealized gains on marketable securities:
Unrealized holding gains (losses) arising during the period	(411)	(156)	(20)
Less: reclassification adjustment for gains included in net earnings	$ 88	$ 63	$ 13

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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