Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Feb. 27, 2022	Feb. 28, 2021	Mar. 01, 2020
Cash flows from operating activities:
Net earnings	$ 8,464	$ 4,864	$ 9,552
Loss from discontinued operations, net of tax	0	328	653
Net earnings from continuing operations	8,464	5,192	10,205
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	1,136	1,150	1,544
Stock-based compensation	285	191	726
Allowance for bad debt	16	16	41
Provision for deferred income taxes	894	(56)	849
Amortization of bond premium	956	543	27
Loss (gain) on sale of marketable securities	10	(10)	(15)
Loss on sale of fixed assets	27	0	0
Non-cash restructuring	0	1,318	0
Accounts receivable	(722)	3,276	(1,614)
Inventories	137	1,585	(1,112)
Prepaid expenses and other current assets	(550)	157	490
Other assets and liabilities	111	250	3,348
Accounts payable	(766)	(1,435)	1,566
Accrued liabilities	(214)	(1)	(1,211)
Income taxes payable	(1,583)	1,164	(8,973)
Net cash provided by operating activities - continuing operations	8,201	13,340	5,871
Net cash used in operating activities - discontinued operations	0	(328)	(653)
Net cash provided by operating activities	8,201	13,012	5,218
Cash flows from investing activities:
Purchases of property, plant and equipment	(4,372)	(7,493)	(6,846)
Proceeds from sales of property, plant and equipment	14	0	0
Purchases of marketable securities	(59,422)	(83,941)	(104,600)
Proceeds from sales and maturities of marketable securities	34,224	124,392	68,935
Net cash (used in) provided by investing activities - continuing operations	(29,556)	32,958	(42,511)
Net cash provided by investing activities - discontinued operations	0	0	0
Net cash (used in) provided by investing activities	(29,556)	32,958	(42,511)
Cash flows from financing activities:
Dividends paid	(8,168)	(8,153)	(28,721)
Proceeds from exercise of stock options	739	12	417
Purchase of treasury stock	0	(1,644)	0
Net cash used in financing activities - continuing operations	(7,429)	(9,785)	(28,304)
Net cash used in financing activities - discontinued operations	0	0	0
Net cash used in financing activities	(7,429)	(9,785)	(28,304)
(Decrease) increase in cash and cash equivalents before effect of exchange rate changes - continuing operations	(28,784)	36,513	(64,944)
(Decrease) in cash and cash equivalents before effect of exchange rate changes - discontinued operations	0	(328)	(653)
(Decrease) increase in cash and cash equivalents before effect of exchange rate changes	(28,784)	36,185	(65,597)
(Decrease) increase in cash and cash equivalents	(28,784)	36,185	(65,597)
Cash and cash equivalents, beginning of year	41,595	5,410	71,007
Cash and cash equivalents, end of year	$ 12,811	$ 41,595	$ 5,410