Segment Information (Details 3) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	$ 27,535	$ 20,560
North America [Member]
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	15,399	11,566
U.K. [Member]
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	8,547	4,956
Other foreign markets [Member]
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	$ 3,589	$ 4,038