Shareholders' Equity (Restricted Stock Units) (Details) - Restricted Stock Units $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
Number of Restricted Stock Units (000's)
Beginning balance (in shares)			1,139,000
Issued (in shares)	0	0	92,088
Vested (in shares)			(530,000)
Expired / Forfeited (in shares)			0
Ending balance (in shares)	701,000	701,000	701,000	1,139,000
Weighted average grant price (CAD$)
Beginning balance (CAD per share) | $ / shares			$ 2.74
Issued (CAD per share) | (per share)		$ 5.66	7.44
Vested (CAD per share) | $ / shares			2.54
Expired / Forfeited (CAD per share) | $ / shares			0
Ending balance (CAD per share) | $ / shares	$ 3.64		$ 3.64	$ 2.74
Weighted average remaining contractual life
Weighted average remaining contractual life			7 months 24 days	6 months 18 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value | $	$ 6,699	$ 6,699	$ 6,699	$ 7,129
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years