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Short-Term Borrowings (Details Textual) - Revolving Credit Facility [Member]
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
Short-term Debt [Line Items]  
Line of Credit Facility, Amount, Total $ 60.0
Line of Credit Facility, Maximum Amount Outstanding During Period $ 4.3
Line of Credit Facility, Expiration Date Nov. 03, 2017
Line of Credit Facility, Interest Rate Description LIBOR plus 0.75%