Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets		$ 996	$ 980
Goodwill, Impairment Loss	$ 675	675	0
Intangible Assets, Amortization Period [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets		$ 1,000	$ 1,000