Consolidated Balance Sheets - USD ($) $ in Thousands	Feb. 26, 2017	Feb. 28, 2016
Current assets:
Cash and cash equivalents	$ 102,438	$ 97,757
Marketable securities (Note 2)	136,152	139,668
Accounts receivable, less allowance for doubtful accounts of $294 and $324, respectively	17,238	22,583
Inventories (Note 3)	11,105	10,214
Prepaid expenses and other current assets (Note 4)	2,197	1,963
Total current assets	269,130	272,185
Property, plant and equipment, net	18,638	21,512
Goodwill and other intangible assets (Note 3)	9,825	9,833
Restricted cash	10,000	10,000
Other assets (Note 4)	985	1,247
Total assets	308,578	314,777
Current liabilities:
Less: current portion	3,500	3,000
Accounts payable	4,183	6,155
Accrued liabilities (Note 3)	3,417	4,580
Income taxes payable	3,023	2,943
Total current liabilities	14,123	16,678
	68,500	72,000
Deferred income taxes (Note 4)	42,088	43,937
Other liabilities (Note 4)	1,041	1,295
Total liabilities	125,752	133,910
Commitments and contingencies (Notes 11 and 12)
Preferred stock, $1 par value per shares-authorized, 500,000 shares; issued, none
Common stock, $0.10 par value per shares-authorized, 60,000,000 shares; issued, 20,965,144 shares	2,096	2,096
Additional paid-in capital	167,612	166,398
Retained earnings	27,112	25,922
Accumulated other comprehensive earnings	1,026	1,471
	197,846	195,887
Less treasury stock, at cost, 730,473 shares	(15,020)	(15,020)
Total shareholders' equity	182,826	180,867
Total liabilities and shareholders' equity	$ 308,578	$ 314,777