Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended		6 Months Ended
	Mar. 27, 2019	May 16, 2018	Jun. 30, 2019	Jun. 30, 2018
Options granted to the Chief Executive Officer [Member]
Salaries, Wages and Officers' Compensation			$ 40	$ 17
Options granted to the Chief Financial Officer [Member]
Salaries, Wages and Officers' Compensation			27	7
Options granted to the former Vice President, Operations [Member]
Salaries, Wages and Officers' Compensation			15	6
Options granted to the Vice-President, Research and Development [Member]
Salaries, Wages and Officers' Compensation			17	6
Options granted to Vice- President, Business and Corporate Development [Member]
Salaries, Wages and Officers' Compensation			17	23
Options granted to non-employee directors [Member]
Salaries, Wages and Officers' Compensation				6
Director fees [Member]
Salaries, Wages and Officers' Compensation			116	124
Deferred Share Units [Member]
Salaries, Wages and Officers' Compensation	$ 132	$ 232	$ 117	$ 232