Segmented Information Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Service fee and commission income	$ 9,479	$ 6,584	$ 19,670	$ 12,946
Other income	1,081	242	1,308	569
Rental income	3,341	3,341	6,682	6,682
Total segment revenues	13,670	8,819	27,670	19,033
Net investment income (loss)	18	(1,347)	(613)	(1,163)
Net realized (losses) gains	(1)	(1)	9	(1)
(Loss) gain on change in fair value of equity investments	(248)	0	614	0
Other income not allocated to segments	973	31	987	61
Loss from continuing operations before income tax expense	(2,519)	(6,838)	(4,703)	(8,180)
Reportable Subsegments [Member]
Segment Reporting Information [Line Items]
Service fee and commission income	9,479	6,584	19,670	12,946
Other income	36	51	102	136
Total segment revenues	9,515	6,635	19,772	13,082
Reportable Legal Entities [Member]
Segment Reporting Information [Line Items]
Other income	72	160	219	372
Rental income	3,341	3,341	6,682	6,682
Total segment revenues	3,413	3,501	6,901	7,054
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total segment revenues	$ 12,928	$ 10,136	$ 26,673	$ 20,136