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Short-Term Borrowings
3 Months Ended
Mar. 31, 2018
Short-term Debt [Abstract]  
Short-term Debt [Text Block]
10.
Short-Term Borrowings
 
At March 31, 2018, the Company had a $60 million unsecured revolving line of credit with a bank expiring November 4, 2018. The line of credit bears interest at the London Interbank Offered Rate (“LIBOR”) plus 0.75%. At March 31, 2018, there were no amounts outstanding on the line of credit. There were also no amounts outstanding on the line of credit during the quarter ended March 31, 2018.