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Short-Term Borrowings
3 Months Ended
Mar. 31, 2019
Short-term Debt [Abstract]  
Short-term Debt [Text Block]
11.
Short-Term Borrowings
 
At March 31, 2019, the Company had a $60 million unsecured revolving line of credit with a bank expiring November 5, 2019. The line of credit bears interest at the London Interbank Offered Rate (“LIBOR”) plus 0.75%. At March 31, 2019, outstanding borrowings were approximately $3.7 million at an interest rate of 3.25%. The highest balance on the line of credit during the quarter was $7.7 million.