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Consolidated Statements of Comprehensive Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 28, 2021	Nov. 29, 2020	Nov. 28, 2021	Nov. 29, 2020
Net earnings	$ 1,741	$ 921	$ 6,508	$ 3,832
Other comprehensive earnings (loss), net of tax:
Other comprehensive loss	(485)	(397)	(494)	(396)
Total comprehensive earnings	1,256	524	6,014	3,436
Gains on Marketable Securities [Member]
Other comprehensive earnings (loss), net of tax:
Unrealized holding gains (losses) arising during the period	3	19	107	416
Less: reclassification adjustment for gains (losses) included in net earnings	(27)	(32)	(36)	(86)
Losses on Marketable Securities [Member]
Other comprehensive earnings (loss), net of tax:
Unrealized holding gains (losses) arising during the period	(472)	(384)	(576)	(726)
Less: reclassification adjustment for gains (losses) included in net earnings	$ 11	$ 0	$ 11	$ 0

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