Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Apr. 01, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 44,980	$ 73,995
Marketable securities	54,616	59,360
Accounts receivable, net	66,830	73,634
Inventories:
Finished goods	27,008	32,759
Work in process	57,829	50,462
Raw materials	10,481	11,285
Total inventory	95,318	94,506
Deferred tax assets	6,140	6,140
Other current assets	20,981	21,270
Total current assets	288,865	328,905
PROPERTY, PLANT AND EQUIPMENT	126,094	121,608
Less allowance for depreciation	59,767	57,340
PROPERTY, PLANT AND EQUIPMENT, NET	66,327	64,268
GOODWILL	18,468	18,468
Total assets	373,660	411,641
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	39,392	48,344
Federal and state income taxes	4,786	1,567
Accrued liabilities	15,146	16,035
Total current liabilities	59,324	65,946
DEFERRED INCOME TAXES	9,407	9,405
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Common stock, $1 par value: Authorized: 12,000,000 shares Issued: 7,440,518 shares	7,441	7,441
Paid-in capital	3,902	3,539
Retained earnings	310,925	342,873
Accumulated other comprehensive income	76	72
Stockholders' Equity before Treasury Stock	322,344	353,925
Treasury stock, at cost	17,415	17,635
Total stockholders' equity	304,929	336,290
Total liabilities and stockholders' equity	$ 373,660	$ 411,641