SHAREHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended		12 Months Ended	15 Months Ended
	Mar. 02, 2022	Jan. 29, 2021	Dec. 31, 2020	Sep. 10, 2020	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Mar. 31, 2022
Net proceeds	$ 14,400
Issuance costs		$ 700
Sale of common stock for cash, net of issuance costs						$ 29,875
Exploration expenditures					$ 1,735	$ 2,236
Canadian Development Expenses
Price per unit		$ 1.01
Equity Financing In February 2021 | Canadian Development Expenses
Gross proceeds							$ 31,500
Flow Through Common Shares | Canadian Development Expenses
Number of units issued		12,600,600
Gross proceeds		$ 12,700					12,700
Net proceeds allocated to the sale of tax benefits		12,000
Sale of common stock for cash, net of issuance costs		10,800
Exploration expenditures							12,700
Flow Through Common Shares | Canadian Exploration Expenditures
Number of units issued	14,500,000		7,669,900	6,298,166
Price per unit	$ 1.04		$ 1.28	$ 1.65
Gross proceeds	$ 15,100		$ 9,800	$ 10,400	15,100
Net proceeds			9,800	9,800
Issuance costs			0	600
Net proceeds allocated to the sale of tax benefits	4,100	$ 1,200	2,100	2,000
Sale of common stock for cash, net of issuance costs	10,300		$ 7,700	$ 7,800
Exploration expenditures					$ 1,700		$ 12,700	$ 14,400
Recent Raise					$15.1
Flow Through CEE
Issuance costs	$ 800