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Reclassification
3 Months Ended
Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Reclassifications [Text Block]
3.
Reclassification
 
Certain prior year amounts in the Consolidated Condensed Statements of Earnings and Comprehensive Income (Unaudited) were reclassified to conform to current year presentation. For the three months ended March 31, 2016, the Company reclassified $392,000 of expense from selling and administrative expenses to other expense, net. This amount represents the non-service cost components of net periodic benefit cost for the period then ended, and was reclassified in connection with the adoption of ASU 2017-07. This reclassification had no effect on previously reported net earnings or equity.