Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Nov. 30, 2025	Mar. 02, 2025
Current assets
Cash and cash equivalents	$ 50,498	$ 21,621
Marketable securities (Note 3)	13,060	47,213
Accounts receivable, less allowance for credit losses of $84 and $125, respectively	12,143	12,903
Inventories (Note 4)	7,636	7,213
Prepaid expenses and other current assets	1,287	1,344
Total current assets	84,624	90,294
Property, plant and equipment, net	21,764	21,650
Operating right-of-use assets (Note 5)	269	308
Goodwill and other intangible assets	9,776	9,776
Other assets	1,666	80
Total assets	118,099	122,108
Liabilities, Current [Abstract]
Accounts payable	3,259	2,513
Operating lease liability (Note 5)	43	40
Accrued liabilities	1,347	1,318
Income taxes payable	694	5,390
Total current liabilities	5,343	9,261
Long-term operating lease liability (Note 5)	285	318
Deferred income taxes (Note 9)	5,802	5,304
Other liabilities	77	71
Total liabilities	11,507	14,954
Common stock	2,096	2,096
Shareholders' equity (Note 8)
Common stock	2,096	2,096
Additional paid-in capital	169,971	170,265
Accumulated deficit	(49,585)	(49,550)
Accumulated other comprehensive loss	(101)	(665)
Stockholders' Equity, Including Treasury Stock	122,381	122,146
Less treasury stock, at cost	(15,789)	(14,992)
Total shareholders' equity	106,592	107,154
Total liabilities and shareholders' equity	$ 118,099	$ 122,108