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Short-Term Borrowings
6 Months Ended
Jun. 30, 2016
Short-term Debt [Abstract]  
Short-term Debt [Text Block]
8.
Short-Term Borrowings
 
At June 30, 2016, the Company had a $60 million unsecured revolving line of credit with a bank expiring November 4, 2016. The line of credit bears interest at LIBOR plus 0.75%. At June 30, 2016, outstanding borrowings were approximately $15.2 million at an interest rate of 1.2%. The highest balance on the line of credit during the quarter was approximately $24.4 million.