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Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Deferred tax assets:    
Product liability $ 391 $ 646
Employee compensation and benefits 3,343 3,374
Allowances for doubtful accounts and discounts 1,123 1,625
Inventories 688 533
Additional minimum pension liability 17,396 16,176
Stock-based compensation 2,116 1,089
Other 859 259
Total deferred tax assets 25,916 23,702
Deferred tax liabilities:    
Pension and other benefits 10,205 9,217
Depreciation 8,069 8,401
Other 354 276
Total deferred tax liabilities 18,628 17,894
Net deferred tax assets $ 7,288 $ 5,808