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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 29, 2018
Dec. 31, 2017
Current Assets    
Cash $ 137,839 $ 63,487
Trade receivables, net 46,810 60,082
Gross inventories 74,198 87,592
Less LIFO reserve (45,811) (45,180)
Less excess and obsolescence reserve (2,195) (2,698)
Net inventories 26,192 39,714
Prepaid expenses and other current assets 3,582 3,501
Total Current Assets 214,423 166,784
Property, plant and equipment 353,115 365,013
Less allowances for depreciation (268,702) (261,218)
Net property, plant and equipment 84,413 103,795
Deferred income taxes 931
Other assets 16,285 13,739
Total Assets 316,052 284,318
Current Liabilities    
Trade accounts payable and accrued expenses 30,219 32,422
Contract liabilities with customers (Note 3) 5,931
Product liability 765 729
Employee compensation and benefits 19,707 14,315
Workers' compensation 5,175 5,211
Total Current Liabilities 61,797 52,677
Product liability 99 90
Deferred income taxes 1,402
Contingent liabilities - (Note 12)
Stockholders' Equity    
Common Stock 24,123 24,092
Additional paid-in capital 31,721 28,329
Retained earnings 341,907 321,323
Less: Treasury stock - at cost 2018 - 6,665,398 shares 2017 - 6,665,398 shares (143,595) (143,595)
Total Stockholders' Equity 254,156 230,149
Total Liabilities and Stockholders' Equity 316,052 284,318
Nonvoting Common Stock [Member]    
Stockholders' Equity    
Common Stock
Common Stock [Member]    
Stockholders' Equity    
Common Stock $ 24,123 $ 24,092