Segment Information (Details 3) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	$ 20,364	$ 21,125
United States [Member]
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	12,331	13,537
Canada [Member]
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	730	846
U.K. [Member]
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	3,508	4,672
Other foreign markets [Member]
Segment Reporting Information [Line Items]
Total consolidated identifiable assets	$ 3,795	$ 2,070