CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 69,525	$ 88,241
Marketable securities	5,248	5,731
Accounts receivable - less allowance for doubtful accounts of $672 and $771 at September 30, 2012 and December 31, 2011, respectively	46,537	39,107
Inventories	56,265	53,361
Restricted cash, current	12,993	12,991
Prepaid expenses and other current assets	4,869	4,092
Refundable income taxes	1,653	2,871
Deferred income taxes	2,136	1,295
Total Current Assets	199,226	207,689
Property, plant and equipment - net	37,237	39,414
Deferred income taxes	3,083	2,814
Intangible assets - net	10,727	10,877
Goodwill	22,279	4,163
Other assets	12,503	11,954
TOTAL ASSETS	285,055	276,911
Current Liabilities:
Accounts payable	20,522	18,459
Accrued expenses	25,955	22,936
Accrued restructuring costs	1,159	0
Notes payable	169	0
Income taxes payable	900	224
Dividends payable	883	806
Total Current Liabilities	49,588	42,425
Long-term Liabilities:
Liability for uncertain tax positions	2,113	4,132
Minimum pension obligation and unfunded pension liability	9,915	9,274
Other long-term liabilities	220	0
Total Long-term Liabilities	12,248	13,406
Total Liabilities	61,836	55,831
Commitments and Contingencies
Stockholders' Equity:
Preferred stock, no par value, 1,000,000 shares authorized; none issued	0	0
Additional paid-in capital	24,915	25,420
Retained earnings	198,541	196,029
Accumulated other comprehensive loss	(1,419)	(1,550)
Total Stockholders' Equity	223,219	221,080
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	285,055	276,911
Class A [Member]
Stockholders' Equity:
Common Stock	217	217
Class B [Member]
Stockholders' Equity:
Common Stock	$ 965	$ 964