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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Current Assets    
Cash and cash equivalents $ 63,487 $ 87,126
Trade receivables, net 60,082 69,442
Gross inventories 87,592 99,417
Less LIFO reserve (45,180) (42,542)
Less excess and obsolescence reserve (2,698) (2,340)
Net inventories 39,714 54,535
Prepaid expenses and other current assets 3,501 3,660
Total Current Assets 166,784 214,763
Property, Plant, and Equipment 365,013 331,639
Less allowances for depreciation (261,218) (227,398)
Net property, plant and equipment 103,795 104,241
Deferred income taxes 334
Other assets 13,739 27,541
Total Assets 284,318 346,879
Current Liabilities    
Trade accounts payable and accrued expenses 32,422 48,493
Product liability 729 1,733
Employee compensation and benefits 14,315 25,467
Workers' compensation 5,211 5,200
Total Current Liabilities 52,677 80,893
Product liability 90 86
Deferred income taxes 1,402
Contingent liabilities (Note 17)
Stockholders' Equity    
Common stock 24,092 24,034
Additional paid-in capital 28,329 27,211
Retained earnings 321,323 293,400
Less: Treasury stock - at cost 2017 - 6,665,398 shares 2016 - 5,345,690 shares (143,595) (78,745)
Total Stockholders' Equity 230,149 265,900
Total Liabilities and Stockholders' Equity 284,318 346,879
Voting Common Stock [Member]    
Stockholders' Equity    
Common stock 24,092 24,034
Nonvoting Common Stock [Member]    
Stockholders' Equity    
Common stock