CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 63,623	$ 30,905
Short-term investment	0	12,015
Accounts receivable (net of allowance for doubtful receivables of $469 and $622, respectively)	47,486	47,258
Inventories	31,292	33,846
Taxes receivable	965	598
Prepaid expenses and other current assets	8,435	6,198
Total current assets	151,801	130,820
Property, plant and equipment, net	76,254	78,939
Goodwill	18,282	18,059
Other intangible assets, net	3,825	4,537
Deferred tax assets	474	798
Other assets, net	1,280	2,032
Total assets	251,916	235,185
Current liabilities:
Current portion of long-term debt	765	1,035
Accounts payable	29,441	28,163
Accrued payroll and other compensation	10,273	9,031
Accrued taxes	1,728	2,532
Other accrued liabilities	4,143	4,038
Total current liabilities	46,350	44,799
Long-term debt	1,646	2,261
Deferred tax liabilities	3,902	5,240
Benefit plan liabilities	25,080	21,269
Other long-term liabilities	442	764
Commitments and Contingencies (Note 12)
Stockholders' equity:
Preferred stock (par value $1.00 per share; authorized 500,000 shares; none issued or outstanding)	0	0
Common stock (par value $0.10 per share; authorized 30,000 shares; issued 23,785 and 23,645 shares, respectively)	2,379	2,365
Capital in excess of par value	58,784	56,214
Retained earnings	201,097	184,291
Accumulated other comprehensive loss	(18,366)	(16,618)
Treasury stock, 6,821 and 6,498 shares of common stock, respectively, at cost	(69,398)	(65,400)
Total stockholders' equity	174,496	160,852
Total liabilities and stockholders' equity	$ 251,916	$ 235,185