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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Current Assets    
Cash and cash equivalents $ 21,044 $ 20,147
Short-term investments 199,971 121,007
Trade receivables, net 57,036 57,876
Gross inventories 100,023 80,487
Less LIFO reserve (51,826) (48,016)
Less excess and obsolescence reserve (4,347) (3,394)
Net inventories 43,850 29,077
Prepaid expenses and other current assets 6,832 6,266
Total Current Assets 328,733 234,373
Property, Plant, and Equipment 421,282 393,843
Less allowances for depreciation (347,651) (323,110)
Net property, plant and equipment 73,631 70,733
Deferred income taxes 536 1,530
Other assets 39,443 41,622
Total Assets 442,343 348,258
Current Liabilities    
Trade accounts payable and accrued expenses 36,400 37,078
Contract liabilities with customers (Note 3) 84
Product liability 795 1,052
Employee compensation and benefits 33,154 37,275
Workers' compensation 6,760 6,272
Total Current Liabilities 77,109 81,761
Lease liability (Note 8) 1,476 1,724
Product liability accrual 97 74
Contingent liabilities (Note 20)
Stockholders' Equity    
Additional paid-in capital 46,847 43,468
Retained earnings 438,098 342,615
Less: Treasury stock - at cost 2021 - 6,709,898 shares 2020 - 6,709,898 shares (145,590) (145,590)
Total Stockholders' Equity 363,661 264,699
Total Liabilities and Stockholders' Equity 442,343 348,258
Voting Common Stock [Member]    
Stockholders' Equity    
Common stock $ 24,306 $ 24,206