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Balance Sheets (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Current Assets    
Cash and cash equivalents $ 81,056 $ 5,132
Short-term investments   52,493
Trade receivables, net 42,225 31,565
Gross inventories 49,004 48,820
Less LIFO reserve (37,476) (37,448)
Less excess and obsolescence reserve (1,311) (1,545)
Net inventories 10,217 9,827
Deferred income taxes 5,776 4,780
Prepaid expenses and other current assets 6,968 1,427
Total Current Assets 146,242 105,224
Property, Plant, and Equipment 169,142 150,379
Less allowances for depreciation (116,195) (107,458)
Net property, plant and equipment 52,947 42,921
Deferred income taxes 32 5,443
Other assets 7,289 4,173
Total Assets 206,510 157,761
Current Liabilities    
Trade accounts payable and accrued expenses 28,592 16,492
Product liability 1,305 449
Employee compensation and benefits 14,882 10,923
Workers' compensation 4,600 4,893
Income taxes payable 217 582
Total Current Liabilities 49,596 33,339
Accrued pension liability 19,082 9,369
Product liability 441 573
Contingent liabilities (Note 16)      
Stockholders' Equity    
Additional paid-in capital 10,454 9,885
Retained earnings 168,981 137,125
Less: Treasury stock - at cost 2011 - 4,299,434 shares 2010 - 4,166,034, shares (37,884) (35,885)
Accumulated other comprehensive loss (27,543) (19,648)
Total Stockholders' Equity 137,391 114,480
Total Liabilities and Stockholders' Equity 206,510 157,761
Nonvoting Common Stock
    
Stockholders' Equity    
Common Stock, value      
Voting Common Stock
    
Stockholders' Equity    
Common Stock, value $ 23,383 $ 23,003