Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Options granted to the Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Salaries, Wages and Officers' Compensation	$ 7	$ 7
Options granted to the Chief Financial Officer [Member]
Related Party Transaction [Line Items]
Salaries, Wages and Officers' Compensation	7	7
Options granted to the Vice President, Operations [Member]
Related Party Transaction [Line Items]
Salaries, Wages and Officers' Compensation	3	8
Options granted to the Vice-President, Research and Development [Member]
Related Party Transaction [Line Items]
Salaries, Wages and Officers' Compensation	3	3
Options granted to Vice-President, Business and Corporate Development [Member]
Related Party Transaction [Line Items]
Salaries, Wages and Officers' Compensation	3	3
Options granted to the Vice-President, Intellectual Property and Legal Affairs [Member]
Related Party Transaction [Line Items]
Salaries, Wages and Officers' Compensation	9	9
Director fees [Member]
Related Party Transaction [Line Items]
Salaries, Wages and Officers' Compensation	110	144
Deferred share units [Member]
Related Party Transaction [Line Items]
Salaries, Wages and Officers' Compensation	$ 85	$ 377