CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current Assets:
Cash and cash equivalents	$ 88,241	$ 83,829
Marketable securities	5,731	1,706
Accounts receivable - less allowance for doubtful accounts of $771 and $653 at December 31, 2011 and 2010, respectively	39,107	53,312
Inventories	53,361	56,970
Restricted cash, current	12,991	0
Prepaid expenses and other current assets	4,092	2,354
Refundable income taxes	2,871	4,370
Deferred income taxes	1,295	1,023
Total Current Assets	207,689	203,564
Property, plant and equipment - net	39,414	44,793
Restricted cash, noncurrent	0	155
Deferred income taxes	2,814	3,201
Intangible assets - net	10,877	11,291
Goodwill	4,163	4,264
Other assets	11,954	9,904
TOTAL ASSETS	276,911	277,172
Current Liabilities:
Accounts payable	18,459	21,180
Accrued expenses	22,936	22,545
Accrued restructuring costs	0	160
Income taxes payable	224	1,584
Dividends payable	806	799
Total Current Liabilities	42,425	46,268
Long-term Liabilities:
Accrued restructuring costs	0	347
Liability for uncertain tax positions	4,132	2,874
Minimum pension obligation and unfunded pension liability	9,274	7,350
Total Long-term Liabilities	13,406	10,571
Total Liabilities	55,831	56,839
Commitments and Contingencies
Stockholders' Equity:
Preferred stock, no par value, 1,000,000 shares authorized; none issued	0	0
Additional paid-in capital	25,420	23,725
Retained earnings	196,029	195,477
Accumulated other comprehensive loss	(1,550)	(39)
Total Stockholders' Equity	221,080	220,333
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	276,911	277,172
Class A [Member]
Stockholders' Equity:
Common stock	217	217
Class B [Member]
Stockholders' Equity:
Common stock	$ 964	$ 953