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Short-Term Borrowings
9 Months Ended
Sep. 30, 2016
Short-term Debt [Abstract]  
Short-term Debt [Text Block]
8.
Short-Term Borrowings
 
At September 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 September 30, 2016, outstanding borrowings were approximately $22.8 million at an interest rate of 1.3%. The highest balance on the line of credit during the quarter was approximately $23.5 million. The line of credit agreement was set to expire on November 4, 2016, but was renewed on the same terms for another one-year period, expiring November 3, 2017.