Segmented Information Segment (loss) income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Gain (Loss) on Sale of Assets and Asset Impairment Charges	$ 0	$ 0	$ (250)	$ 0
Total segment operating income (loss)	1,140	(599)	1,902	(994)
Net investment (loss) income	(2,366)	1,072	(1,663)	1,000
Net realized gains (losses)	734	67	1,132	(104)
Amortization of intangible assets	289	307	580	602
Accretion Expense	212	657	212	657
Interest expense not allocated to segments	1,216	1,108	2,375	2,201
Other income and expenses not allocated to segments, net	(2,776)	(1,940)	(4,736)	(3,841)
Foreign exchange losses, net	0	(9)	(4)	(10)
(Loss) gain on change in fair value of debt	(2,702)	1,068	(4,591)	3,596
Equity in net (loss) income of investee	(145)	(874)	2,240	(943)
Loss from continuing operations before income tax expense	(7,408)	(1,973)	(8,713)	(3,442)
Income tax expense	1,251	26	1,430	52
Net loss	(8,659)	(1,999)	(10,143)	(3,494)
Reportable Subsegments [Member]
Segment Reporting Information [Line Items]
Total segment operating income (loss)	685	(780)	1,271	(936)
Other Segments [Member]
Segment Reporting Information [Line Items]
Total segment operating income (loss)	(417)	181	(1,159)	(58)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total segment operating income (loss)	$ 872	$ 0	$ 1,790	$ 0