Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 02, 2019
Summary of Significant Accounting Policies (Textual)
Right to use asset and liability	$ 3,736	$ 290
Weighted average remaining lease term	4 years 6 months 29 days
Operating lease liabilities, weighted average discount rate	6.50%