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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Events In February 2017, the Company signed an agreement to acquire SunTel Services, based in Troy, Michigan, for approximately $10 million. SunTel Services provides network security, data connectivity, and unified communications solutions to commercial and enterprise customers across multiple sectors throughout Michigan. The acquisition is expected to close in the first quarter of 2017.