Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
Dec. 01, 2019	Nov. 25, 2018
Cash flows from operating activities:
Net earnings from continuing operations	$ 7,572	$ 4,718
Adjustments to reconcile net earnings to net cash (used in) provided by operating activities:
Depreciation and amortization	1,142	1,317
Stock-based compensation	404	594
Deferred income taxes	103	(940)
Amortization of bond premium	(36)	(34)
Changes in operating assets and liabilities	(6,492)	(430)
Net cash provided by operating activities - continuing operations	2,693	5,225
Net cash (used in) provided by operating activities - discontinued operations	(404)	5,731
Net cash provided by operating activities	2,289	10,956
Cash flows from investing activities:
Purchase of property, plant and equipment	(4,363)	(399)
Purchases of marketable securities	(100,454)	(19,271)
Proceeds from sales and maturities of marketable securities	43,950	14,238
Net cash used in investing activities - continuing operations	(60,867)	(5,432)
Net cash used in investing activities - discontinued operations		(158)
Net cash used in investing activities	(60,867)	(5,590)
Cash flows from financing activities:
Dividends paid	(6,150)	(6,076)
Proceeds from exercise of stock options	401	661
Net cash used in financing activities - continuing operations	(5,749)	(5,415)
Net cash used in financing activities - discontinued operations
Net cash used in financing activities	(5,749)	(5,415)
Decrease in cash and cash equivalents before effect of exchange rate changes - continuing operations	(63,923)	(5,622)
Decrease in cash and cash equivalents before effect of exchange rate changes - discontinued operations	(404)	5,573
Decrease in cash and cash equivalents before effect of exchange rate changes	(64,327)	(49)
Effect of exchange rate changes on cash and cash equivalents - continuing operations		(3)
Effect of exchange rate changes on cash and cash equivalents - discontinued operations		(1,207)
Effect of exchange rate changes on cash and cash equivalents		(1,210)
Decrease in cash and cash equivalents	(64,327)	(1,259)
Cash and cash equivalents, beginning of period	71,007	18,254
Cash and cash equivalents, end of period	6,680	16,995
Supplemental cash flow information:
Cash paid during the period for income taxes, net of refunds	$ 7,614	$ 2,332

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-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.

+ References

No definition available.

+ Details

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

- Definition

Amount of noncash expense for share-based payment arrangement.

+ References

+ Details

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

- References

No definition available.

+ Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration