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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Thousands
Apr. 02, 2022
Dec. 31, 2021
Current Assets    
Cash $ 41,586 $ 21,044
Short-term investments 169,990 199,971
Trade receivables, net 69,347 57,036
Gross inventories (Note 4) 103,501 100,023
Less LIFO reserve (52,674) (51,826)
Less excess and obsolescence reserve (3,913) (4,347)
Net inventories 46,914 43,850
Prepaid expenses and other current assets 8,416 6,832
Total Current Assets 336,253 328,733
Property, plant and equipment 431,439 421,282
Less allowances for depreciation (353,310) (347,651)
Net property, plant and equipment 78,129 73,631
Deferred income taxes 93 536
Other assets 32,003 39,443
Total Assets 446,478 442,343
Current Liabilities    
Trade accounts payable and accrued expenses 33,874 36,400
Contract liabilities with customers (Note 3)
Product liability 503 795
Employee compensation and benefits 19,607 33,154
Workers' compensation 6,956 6,760
Income taxes payable 5,237
Total Current Liabilities 66,177 77,109
Product liability accrual 100 97
Lease liability (Note 5) 2,248 1,476
Contingent liabilities (Note 13)
Stockholders' Equity    
Additional paid-in capital 46,328 46,847
Retained earnings 452,872 438,098
Less: Treasury stock - at cost 2022 - 6,709,898 shares 2021 - 6,709,898 shares (145,590) (145,590)
Total Stockholders' Equity 377,953 363,661
Total Liabilities and Stockholders' Equity 446,478 442,343
Nonvoting Common Stock [Member]    
Stockholders' Equity    
Common stock
Common Stock [Member]    
Stockholders' Equity    
Common stock $ 24,343 $ 24,306