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Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets:    
Product liability $ 285 $ 203
Employee compensation and benefits 2,548 2,263
Allowances for doubtful accounts and discounts 445 3,761
Inventories 954 978
Stock-based compensation 3,353 3,064
Other 1,443 1,637
Total deferred tax assets 9,028 11,906
Deferred tax liabilities:    
Depreciation 6,638 5,631
Other 860 882
Total deferred tax liabilities 7,498 6,513
Net deferred tax assets $ 1,530 $ 5,393