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Short-term Borrowings (Tables)
6 Months Ended
Jun. 30, 2018
Shortterm Borrowings Tables Abstract  
Schedule of Credit Lines

The weighted average daily amounts of borrowings outstanding under the Company’s credit lines and the weighted average interest rates on those amounts were as follows:

 

   (In Thousands)
   Three Months  Six Months
   June 30,  June 30,
   2018  2017  2018  2017
Average Daily Amounts Outstanding  $31,555   $15,582   $29,721   $14,221 
Weighted Average Interest Rates   3.10%    2.08%    2.94%    1.95%